eBook Chapters

1. Onion belongs to the family ...........................

   a) Alliaceae

   b) Brussicaceac

   c) Crucifereae

   d) Chno podoceae

2. Pungency in onion is due to ...........................

   a) Dially / disulphide

   b) Carbonates

   c) Sulphonates

   d) Allypropyl Disulfide

Vegetables are rich source of vitamins, minerals than other than nutrients. In India, vegetables occupy only 2.8% of the total cropped area. Vegetables are (except mushroom) grown for their succulent and edible parts such as the roots, stems, leaves, young tops, fruits or seeds which are used in culinary preparations either fresh or preserved in the fresh state.

These crops are further classified into different groupings according to similarities in edible parts, growth habits, methods of culture and botanical family.

1. General Olericulture

Olericulture is Latin term ‘Olerus’ meaning herb.

China, India, USA, Turkey and Italy: Major vegetable producers.

Indian subcontinent has 80 species of major and minor vegetables apart from several wild species consumed as vegetable.

About 175 different types of vegetables are grown in India, includes 82 leafy vegetables and 41 root (tuber and bulb) crops.

Cucurbits, taros, yams, brinjal and okra have rich diversity in Indian gene centre.

USA is leading importer of cucumber and gherkins, assorted canned vegetables and other dehydrated vegetables from India.

Germany leads in import of preserved onion, green pepper in brine and dehydrated onion flakes/powder.

Singapore leads in import of dried asparagus; Japan in dehydrated garlic flakes; UAE in dehydrated garlic powder; Bangladesh in peas and Switzerland in dried mushrooms including morels.

Mizoram is the largest producer of chow chow.

Olericulture is Latin term ‘Olerus’ meaning ‘pot herb’ and ‘Cultra’ meaning ‘cultivation’.

Definition: Vegetables are those plants wherein parts such as leaf, stem or root can be used for food.

Herbs: Are those plants that are used for food, medicine, scent or flavour.

Important Points to Remember

Cauliflower

• Botanical name: Brassica oleraceae var. botrytis
• Family: Crucifereae
• 2n = 18
• Type of vegetable: Leafy vegetable
• Origin: Mediterranean region

The general recommendation for intake of fruits and vegetables is at least 400 g per person as recommended by World Health Organization (WHO), five servings of 80 g per day or about 146 kg per person per annum. For vegetables, the recommended intake requirement is at least 300 g per day per individual. This 300 g requirement must include 50 g leafy vegetables, 50 g roots and tubers and 200 g other vegetables (Kapur, 2016). Current annual vegetable production including potato, based on recent three years (2015-16, 2016-17, 2017-18) average is around 177 million tons from 10 million ha giving a productivity of 17.7 ton/ha. With this average and stagnating production and assuming Indian population at 133 CR (1.33 billion) and 25% postharvest losses, per capita per day availability of vegetables comes to 273 g leaving a gap of 27 g between the recommended dose and the availability of vegetables per head per day in India. By 2050, the projected population of India is 1.5 billion and to meet the requirement of this population, vegetable production will have be 220 million tons, of course making allowance of 25% post-harvest losses. Considering all kind of constraints on the available land area of vegetables, the vegetable area will be around 10 million ha and consequently, major gain of production will have to come from productivity increase from current level of about 18 tons/ha to 22 tons/ha and this seems to be a gigantic task as during last several years, the productivity of vegetables in India has been between 17 and 18 tons/ha, an indication that it has reached to a plateau. This situation calls for fall massive interventions on technological fronts in terms of innovative products with focus on better hybrids with higher yields, and resistance to biotic and abiotic stresses deploying precision breeding technologies using more of marker assisted breeding, genomics and gene editing tools and delivering high quality seeds to the farmers with assurance of high performance. This chapter looks into the present seed scenario and the emerging trends with respect to new seeds and new technologies and examines the need to facilitate rules, regulations and IPR environment for more investment in vegetable research and development and quality seed production and distribution. Improved seed with shift towards hybrid seed will be the key driver to increase vegetable production and productivity in India.

The processing of the seed refers to mainly pre-cleaning and sizing. The sizing is up gradation of seed lots based on size, shape or length. In this chapter processing with main reference to sizing or upgrading is given. Sizing or upgrading is done by using different screens in an air screen cleaner, gravity separator, seed blower, indent disc cylinder, belt grader or some time colour sorter. Here specific tasks like use of screens in an air screen cleaner, rubber belt angles when using a belt grader, disc type when using indent disc cylinder or special arrangements in a gravity separator are given. The details of the machines or equipments with the principles of working were already covered in Chapter-3.

A successful vegetable production industry is very dependent on a sustainable supply of seeds to the growers. At the present time, the seed industry plays an important role in both production and distribution of high quality vegetable seeds.

Successful seed production of a crop depends on a thorough knowledge of the reproductive process of a particular crop. The techniques of seed production must take into account several features of reproduction: whether it is sexual, asexual, or a combination of the both, the nature of floral structures, the amount of pollen transfer, the degree and means of self-incompatibility and the effect of inbreeding on vigour. For most purposes the important consideration to the seed producers is the extent of cross-pollination. It is, therefore, necessary that before engaging himself in seed production, a producer must acquaint himself with the following details of reproduction in the particular crop:

Methods of Reproduction

The method of reproduction in vegetable crop plants may be broadly grouped in to two categories, asexual/vegetative and sexual:

The horticulture sector of our country is following an increased growth in area and production by 9% and 14 % respectively for the past six years (2015-21). It is reported that the growth rate of horticultural crop production accounts for 2.7% per year. Fruits and vegetables are the major sectors contributing to total horticulture production. As per the report of second advance estimates published by Horticulture statistics division, Ministry of Agriculture and Farmers Welfare during 2020-21, our country recorded the highest horticulture production during 2020-21 with an annual production of 329. 86 million tonnes from an area of 27.23 million hectares and the vegetable sector shared around 196.26 million tonnes production from 10.80 million hectare area. India is the largest producer of okra and ginger and second largest producer of potato, onion, cauliflower, brinjal, cabbage etc. Vegetables also contribute to the export market and onion, mixed vegetables, potatoes, tomato and green chilli are the main vegetables exporting from our country. It is estimated an export of worth Rs. 4969.73 crores from vegetables during the year 2020-21.

Importance of Vegetable Seed Production

Though we are leading in many of the vegetables in area and production, our national average in productivity of the major vegetables is far less compared to the world average. The country s estimated vegetable production by the year 2050 is 375 million tonnes from 15 million hectare with an average productivity of 25 t/ha. Low productivity is mainly because the farmers are still relying on old varieties which are less yielding and susceptible to pest and disease. Unavailability of the quality seeds of newly released varieties is one of the main reasons for this production gap. A substantial increase in yield and quality of vegetable crops can be achieved by adopting suitable agronomic practices, plant protection measures and use of quality seed. Now a days, there is an increased demand for good quality seeds of open pollinated varieties as well as hybrid seeds through which an increased vegetable production can be achieved for meeting the requirement of increasing population. So far, very limited number of vegetable hybrids have been developed and released by public sectors and majority of the existing promising hybrids in vegetables are from private sectors.

Introduction

While Indian agriculture has evolved to provide food to our ever growing population, nutritional security had remained a distant dream. Vegetables, an important component of a healthy diet, are rich source of nutraceuticals such as flavonoids, carotenoids, vitamins, anthocyanins, polyphenolics etc. Such constituents provide health benefits of disease prevention through antioxidant activity and reduced disease risks. Since perishable food commodities and light sensitive nutraceuticals have a specific shelf life, these run the risk of getting spoilt beyond a specific time. Excessive quantities of these must therefore, be processed and converted into value added products with improved shelf life and nutrition value after fortification with nutraceuticals. Nutraceuticals are also referred to by different terminologies like functional foods, fusion foods, dietary supplements, designer foods etc. Nutraceutical products include food supplements, dietary supplements, value-added food products, processed food commodities as well as non-food supplements such as tablets, soft gels, capsules etc. A survey related to nutraceutical rich vegetables has revealed that farmers are growing only the conventional vegetables and there is little awareness about the use of nutraceutical rich vegetables.

Vegetables are rich sources of important phytochemicals, which provide essential nutrients and enhance the body’s ability to prevent and fight disease. There is a multitude of phytochemicals, in unique combinations, in different vegetables, and each functions differently in the body as anti-oxidant, as anti-allergenic, as anti-carcinogenic, as anti-inflammatory, as anti-viral, and/or anti-proliferative. Being of natural origin, some of the phytochemical pigments are increasingly sought after as food colorants. Some of the nutraceutical rich vegetable crops include red and black carrot, beet root, tomato, chilli, and broccoli.

INTRODUCTION

Vegetables and fruits have many similarities with respect to their composition, methods of cultivation and harvesting, storage properties and processing. In fact many vegetables are considered fruits in the true botanical sense. But the difference between the two is that vegetables are derived from various parts of plants e.g. roots, leaves, stems, buds and so on whereas, fruits are the mature ovaries of plants with their seeds. The edible position of most fruits is the freshly part of the pericap or vessel surrounding the seeds. The other difference between the two is that those plant items that are generally eaten with the main course of a meal are often considered to be vegetables, whereas those that are eaten alone or as a dessert are considered as fruits. This is the distinction made by food processors, certain marketing laws, and the consuming publics.

SYNOPSIS

Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal or fish origin. Plant foods are the most abundant sources of nutrition on earth. Only plants contain powerful substances called phytochemicals, which protect us from cancer, heart disease, and an array of other serious illnesses.

1.1 INTRODUCTION

Horticulture is defined as “The science and art of growing vegetables, fruits, flowers, ornamental plants and landscaping of gardens and surroundings in small and commercial gardens”. The word ‘horticulture’ has been derived from Latin language and consists of two parts, viz., ‘hortus’ means garden and ‘cultura’ means cultivation. Thus, the word ‘horticulture’ means garden cultivation. Horticulture basically deals with Pomology, Olericulture, and Floriculture and Landscaping. Horticulture is gaining importance as it gives more returns per unit area and also gives nutritious food to human beings thereby improves quality of life and enhances the aesthetic beauty of nature. Vegetable growing is one of the major branches of horticulture with respect to value of the products.

In technical sense all parts of vegetables are used for consumption. The term, however, is usually applied to the edible plants which store up reserve food in roots, tubers, bulbs, stems, petioles, leaves, buds, flowers, fruits, and seeds which are eaten either cooked or raw. Growing vegetables is not only important for providing the protective food but also serve as an important subsidiary food playing a more significant role in the food consumption. They are rich in nutrients and are essential components of a balanced diet.

INTRODUCTION

Resource, land use patterns and erosion of homrgardens biodiversity have been at the core of the debate on sustainable ecosystem management today. Homegardens are considered as a resource system of multiple functions and an important wheels of vehicle for biodiversity, environmental and ecological benefits, food security (either directly food grains, fruits, vegetables and root crops or indirectly improving soil conditions and there by promoting understory crop productivity especially on degraded sites), soil conservation potential, nutritional security, socio-cultural as well as mitigation of the impact of climate change and job creation in developing and under developed countries. While increasing human population, urbanization and pressure on the earth’s ecosystems, has resulted in the breakdown of these traditional agroforestry systems, accompanied by increasing economic, cultural, nutritional, and environmental problems, there is little awareness that homegardens are under similar threats.

In global competitive agriculture market, the need of the hour is to provide uniform and quality agricultural produce which can compete in market and give remunerative returns. For this, the agriculture production needs to be addressed on more scientific grounds and full package of practices are to be adopted to produce quality produce for global market. Earlier, the orchards were established using seedling material where uniformity of the produce was not guaranteed. Thus, in recent years more emphasis is being paid on scientific establishment of orchards which requires true to type planting material from which uniform produce is expected. This true to type planting material can only be produced by vegetative methods. Thus, standardization of vegetative propagation in horticultural crops, particularly in perennial crops has gained much importance. Some references are available on propagation of plants which shows that vegetative propagation  methods were also practiced in ancient time as mentioned in old treaties literature viz. Upvan vinod,  Ain-e-akbari, etc.

I. FILL UPS

1. _____ is the method of propagating plants with the use of organs other than the seed and spore.
2. The word asexual, which means _____.
3. In asexual, the _____ of the male and female sexual gametes (fertilization) is not a requisite to the production of new plants.
4. In vegetative propagation, the union of the male and _____ sexual gametes (fertilization) is not a requisite.
5. _____ without fertilization is known as vegetative propagation.
6. In vegetative propagation, _____ cell division takes place.

1. VEGETATIVE PROPAGULE

Vegetative propagation or asexual propagation is the method of propagating plants with the use of organs other than the seed and spore. In contrast to sexual propagation, the union of the male and female sexual gametes (fertilization) is not a requisite to the production of new plants. Hence the word “asexual”, which means “without sex” or “not sexual”.

A close relationship between the mode of reproduction of a cultivated plant and the methods to be employed for its improvement is now well accepted. Crop plants are broadly placed in two groups according to the mode of their reproduction: sexually reproduced and asexually propagated or reproduced plants. Asexual reproduction does not involve the union of gametes and/or reduction in chromosome numbers.

Plants may reproduce asexually in a variety of ways. In 1980, Mayo has identified the following methods of asexual reproduction on the basis of the classification made earlier by Stebbins in 1941 and Brown in 1972.

The venous drainage of the fore limb of ox is conducted by two independent routes, the superficial and deep routes, in the fore limb. The major vein of the superficial route is the cephalic vein and that of the deep route is the axillary vein. The venous drainage of the fore limb begins at the digits and is carried by branches of both the routes intermingling or confluent with each other up to the level of elbow joint. From the elbow upwards the journey of the two paths is completely independent of each other. The superficial veins join the cephalic vein while the deep veins join the axillary vein to open into the cranial vena cava.

Superficial veins

The superficial veins begin in the form of distal deep and distal superficial palmer arch just above the fetlock joint. These venous arches are formed by the union of axial and abaxial digital veins. From these venous arches extend the dorsal metacarpal vein ascending first through the interdigital space and then winding around the large metacarpal bone. In this course it anastomoses with the branches of radial vein on the dorsomedial aspect of the carpometacarpal region and passes further upward as accessory cephalic vein.

The venous blood from the head and neck is carried by two jugular veins (Figure 2-11 B), the internal and external jugular veins on each side. Both of these extend from the base of the head to the thoracic inlet and are located on the ventrolateral part of the neck. The internal jugular vein is smaller while the external jugular is larger one.

The internal jugular vein is formed by the union of the thyroid, laryngeal and occipital veins beneath the wing of the atlas between the mandibular salivary gland and the rectus capitis ventralis major muscle. It passes down the neck in company with the common carotid artery, vagus and sympathetic nerves enclosed within a carotid sheath, receives in its course the muscular venous branches, tracheal vein and the oesophageal vein and terminates by joining the external jugular vein just in front of the thoracic inlet.

The external jugular vein is the larger of the two jugular veins and is formed by the union of the superficial temporal and the maxillary veins just behind the caudal border of the mandible and on the deep face of the parotid salivary gland below the temporomandibular joint. It becomes superficial by emerging through the parotid gland, passes down the neck subcutaneously in the jugular furrow, receives the internal jugular vein forming a common jugular vein in front of the thoracic inlet. It receives along its course, the external maxillary vein, parotid veins, auricular veins, small veins from the muscles of the cervical region and the cephalic vein at its termination. While in the jugular groove it is bounded dorsally by the brachiocephalicus muscle, ventrally by sternocephalicus and medially by the sternomastoid part of the sternocephalicus muscle. The vein is covered by skin and fascia and is separated from common carotid artery, vagosympathetic trunk, recurrent laryngeal nerve and internal jugular vein by the upper border of the sternomastoid muscle.

The right and left common jugular veins unite and form the jugular confluence which joins the cranial vena cava ventral to the trachea slightly to the right of the median plane at the level of the cranial border of the first rib.

The venous drainage of hind limb begins from two digital venous plexuses, one for each digit, situated in the corium of the foot. From each of these plexuses extend three digital veins namely the dorsal common digital vein, the medial digital vein and the lateral digital vein. The digital veins in their upward course converge and form the metatarsal veins which in their turn continue upward in the leg region as tibial and popliteal veins and then in the thigh region as femoral vein which finally joins the external iliac vein as the chief vein of the hind limb.

Digital veins

The dorsal common digital vein arises from the corresponding digital plexus in the form of proper digital vein.The two proper digital veins ascend along the medial face of the corresponding digit and unite at about the middle of the interdigital space below the metatarso-phalangeal articulation (fetlock joint) and form the dorsal common digital vein. The later, thus formed, ascends through the interdigital space, crosses vertically the metatarso-phalangeal articulation and after reaching the distal extremity of the metatarsal bone continues upward as dorsal metatarsal vein.

The medial digital vein after arising from the digital venous plexus ascends along the caudomedial aspect of the medial digit in company with the satellite artery, shares a branch each from the dorsal common digital and lateral digital veins, ascends the medial face of the fetlock joint and is then continued up as the medial plantar metatarsal vein.

The lateral digital vein after arising from the digital venous plexus of the lateral digit passes upward in the interdigital space, communicates a branch to the dorsal common digital and medial digital veins and then ascends the lateral face of the fetlock joint and then is continued up as the lateral plantar metatarsal vein.

The venous drainage from the wall of the thorax is performed by the dorsal intercostal veins. These veins are distributed as below.

The dorsal intercostal veins are twelve pairs in number. Of these, the fourth to twelfth intercostal veins from right side and fifth to twelfth intercostal veins from the left side join the vena azygos.

Morphological characteristics

A large elegant evergreen tree, grows up to 30 m. high, with a clean, cylindrical bole of 15 m. and a girth of 4.5 m. Bark is rough, whitish to grey, peeling off in thick round flakes. Leaves are coriaceous, Ovate to Oblong, entire (Leaf falls in March, new foliage appears in April-May, the second flush of foliage starts after rains, in October to December.) Fruit is a Capsule, ovoid, pale brown, fleshy, 8 to 11cm long, and 3.5 to 6 cm in Diameter. 1 seeded, reddish white, filled with fat. Ripens during June to July.

Floral characteristics

Flowers are bisexual, about 2 cm across, white, slightly fragrant, arranged in panicles. Panicle is robust, multi-branched, up to 15 cm long and drooping. Fruit is capsules, 4-6 cm X 2-4 cm in size, pale brown, fleshy, hard when dry, splitting by 3 valves when ripe.

Distribution

A slow-growing species, Endemic & found primarily in the South west coast evergreen forests, upto an altitude of 750 m, and also occasionally in secondary evergreen dipterocarp forest in the states of Karnataka, Kerala & Tamil Nadu.

Introduction

A collaborative environment is necessary to enable a nurturing future for any business or entrepreneurship to succeed. While ventures may or may not have benefitted from collaborations, it is undoubtedly a step highly considered and regarded in any kind of field be it research, business, partnership between organizations or any international collaborations. The parties involved in these collaborations/partnerships share resources and risks as per agreed. The various kinds of models are discussed in this chapter ahead.

Venture Capital

Venture capital refers to financing that comes from companies or individuals in the business of investing in young, privately held businesses. They provide capital to young businesses in exchange for an ownership share of the business. Venture capital firms usually don’t want to participate in the initial financing of a business unless the company has management with a proven track record. Generally, they prefer to invest in companies that have received significant equity investments from the founders and are already profitable. Venture capital investors also prefer businesses that have a competitive advantage or a strong value proposition in the form of a patent, a proven demand for the product, or a very special (and protectable) idea. Startups with innovative ideas and technologies that have a great potential for wealth creation, but a high risk of failure might receive funding from venture capital. Typically, venture financing comes in the form of equity shares or a claim on equity that may arise in the future, such convertible debt, allowing the venture capital firm to acquire a portion of the company. New businesses are often the focus of venture capital, and Georges Doriot, a professor at Harvard Business School, is widely regarded as the “Father of Venture Capital.”

Verbal communication-definition and meaning-Verbal vs Oral communication - Types-Styles-Barriers to effective verbal communication

Meaning

Verbal communication takes place directly between the superiors and juniors in organizations and between farmers and extension functionaries in the field and is often known as face to face communication. It takes the form of talks, a public address, verbal discussions, telephonic talks, telecommunications and other forms such as audio-visual aids speeches and orders, holdings of meetings and conferences, lectures, social get-togethers, training sessions, public address systems, museums, counseling etc.

Definition

The Verbal Communication is a type of oral communication wherein the message is transmitted through the spoken words. Here the sender gives words to his feelings, thoughts, ideas and opinions and expresses them in the form of speeches, discussions, presentations, and conversations.

Verbal vs Oral communication

Verbal Communication - Oral: It consists of spoken messages which include exchange of ideas, questions or comments. Few examples of verbal (oral) communication are face-to-face conversations, group discussions, counselling, interview, radio, television, calls, etc. Man is the only privileged species which can use language. Language is mostly used in speech and writing comes later. Oral communication has much wide and acceptable use when compared to written communication. As a part of everyday life, in informal relations or formal organization, we communicate more orally than in writing. Oral communication is a building block of human relations. Without oral communication, any interaction is lifeless. Thus, its importance cannot be ignored.

Verbal Communication - Written: This type of verbal communication does not require speech or sound. Though technically, written communication is nonverbal, it falls under this category as it includes the use of words and language. Few examples of verbal (written) communication are books, letters, text, newspapers, etc.

3.1. Types of communication network

There are different situations in which different kind of communication is required for transfer of technology. An Extension expert works in an organization.

Q. 1 The question below consists of a pair of related words followed by four pairs of words. Select the pair that best expresses the relation in the original pair. 

Unemployed : Worker
(A) Fallow : land     (B) Unaware : sleeper
(C) Wit : jester        (D) Renovated : house

Abstract: Verbena, popular annual is suitable for landscapes, hanging baskets and ground cover as bedding type. Due to seed propagation and out crossing, progeny can segregate widely for traits due to heterozygosity. Important traits for landscape use include flower colour and extended bloom time, large and highly showy flowers, plant architecture (matting habit), environmental adaptation to stressful condition (heat tolerance) and disease resistance. Genetic information and trait heritability is almost unknown for this crop. The use of interspecific hybridization, polyploid, breeding for disease resistance and mutation breeding are presented. Tissue banks and genetic evolutionary race history have been maintained. Transgenic plants have been developed.

Keywords: Phylogeny, breeding, F₁ hybrids, transgenic.

A family of about 86 genera and 3,000 species distributed chiefly in tropics and sub-tropics. About 22 genera and over 30 species have been reported from India. Some of the genera along with their number of approximately reported species and common names of them are Clerodendron (400, glory-flower), Verbena (250, vervain), Vitex (250, chaste tree), Lippia (220, Frogfruit), Lantana (150), Callicarpa (140, beauty-berry), Stachytarpheta (100) and Tectona (3, teak).
Verbena is popular ornamental plant suitable for flower gardens, hanging baskets, and balcony boxes. They are excellent both as ground cover for rockeries, and as bedding types. These plants abundantly flower in the seedin year and, thus, are grown as annual plants.
Selected Indian Genera
Clerodendron, Duranta, Lantana, Tectona, Verbena, Vitex.
Economic Importance
1. Timber yielding plants: Teak, one of the most famous timber-yielding plants of the world, belongs to Verbenaceae. It is used for high quality furnitures, heavy constructions, ship building, musical instruments and several other similar purposes. Some other timber-yielding plants are Gmelina arborea, Premna benghalensis and Vitex altissima.

1.0. Objectives

• To make out the definition of verb and its kinds
• To enable the students to show the correct usage of verbs
• To train learners to identify appropriate verbs for subjects
• To practise to use different types of verbs suitable, in sentence, to express the intension

2.0 What is a Verb

“A verb is a word that implies an action, state of being”. It is a very important part of a sentence as it operates sentences in particular tense. It is called the soul of the English language.

3.0 Kinds of Verb

To understand the kinds of the verb see the chart given below-

Use of veterinary drugs in prevention, control and treatment is becoming inevitable with the intensification of livestock production system. Food animals given veterinary drugs contain residues of parent compounds and/ or their metabolites may remain in edible products for a period of time after treatment. In such scenario if withdrawal period of the drug is not observed, then there is every chance for that residue to become a part of the human diet. Subsequently, people consuming such veterinary drug residue-containing foods may suffer from different adverse health effects like increasing incidence of AMR, in addition to hypersensitivity and allergic reactions in some sensitive individuals. On the other hand, some veterinary drugs like nitrofurans and its metabolites (SEM, AHD, AOZ & AMOZ) represents major concern in food due to their carcinogenic nature and their use in food animals have been banned in most countries. Responsible and prudent use of veterinary drugs in food animals is must to promote animal health and to ensure food safety. On that front, veterinarians who is holding the prescription decision, indeed play a crucial role in the mission for attainment of judicious use of veterinary drugs in food producing animals and complying the regulatory requirement to produce safe animal sourced foods.

Introduction

Earthworms have been exists on the earth from over 20 million years. Decomposition of organic material that may be plant or animal origin by earthworms is called vermicompost. The earthworm is a natural resource of fertility of soil. Earthworm is lives in the soil. They feed on decaying organic material. After digestion, the undigested material moves through the alimentary canal of the earthworm; and a thin layer of oil is deposited on the castings. This layer corrodes over a period of 2 months. Although, the plant nutrients are immediately available, they are slowly released to last longer period. The digestive process in the alimentary canal of the earthworm can transforms organic wastes to natural fertilizer. Vermicompost is an odorless, clean, organic material containing adequate quantities of N, P, K and several micronutrients essential for plant growth. Vermicompost is an ideal nutrient source for organic farming. It is eco-friendly, non-toxic, consumes low energy input for composting and is a recycled biological product. Vermicomposting has gained popularity in both industrial and domestic scenery because as compared with conventional composting, it provides a way to treat organic wastes more quickly. It generates a product which has a lower salinity levels, and therefore more beneficial to plant mediums. Vermicompost is nutrient rich organic fertilizers which also contain water soluble nutrients and soil conditioner in a form that is relatively easy to absorb for plants. Worm castings are nothing but organic fertilizers because the earthworms grind and uniformly mix minerals in simple forms. Plants need least efforts to obtain these nutrients from vermicompost. The worm digestive system creates environment that allow certain species of microbes to flourish to help for creating the “living soil environments for plants”.

The chemical changes in organic wastes undergo include deodorizing and neutralizing. The pH of the casting is 7 (neutral) and the casting is odorless. The worm casting contains bacteria, so microbial activity is promoted. Excellent quality of compost can be produced in ambient temperature condition in a short period of time by using proper species of earthworm. The earthworms promote faster decomposition of organic material as compared to compost pits without earthworms.

Introduction

After introduction  of Green Revolution and White  Revolution in our country, India had high growth in food and milk production but farmers of our country had  applying more chemical fertilizers, insecticides  pesticides, weedicides and various medicines  in injudicious way  to increase grain, vegetable, fruit, flower, milk, meat and egg production . Due to this reason soil fertilely and soil health is deteriorating continuously. The soil  of food bowl states of our country viz. Punjab, Haryana, Western Uttar Pradesh and plain area of Uttarakhand deficient in organic matter, macro and micro and trace elements. Now soil became non living due to death of earthworms and beneficial micro organism. Farmers are using mainly nitrogen, phosphorus and potash in crop production. However there are 15 essential plant nutrition’s for growing of crops. Due to more application of chemical fertilizers in crop production these days’ farmers are not properly using organic, green and compost manures in crop husbandry. Soil fertility and ground water level has been declined very fast by adopting intensive farming.

Vermicompost is the result of the biooxidation and stabilization process of organic wastes by joint action of earthworms and microbial decomposers. In this process all nutrients present in organic wastes are transformed to plant available forms. Earthworms also secret various plant growth hormones along with polysaccharides, proteins and other nitrogenous compounds. Vermicompost, therefore, improves aeration, soil structure, nutrient availability, water holding capacity, ground biodiversity and nutrient efficiency, enhancing germination, growth and yield of crops. As compaired to farm yard manure, vermicompost contains 40 to 60% higher levels of humic substances and is superior in quality than conventional composts. The effect of humic substances is more prominent in stimulating root respiration, formation and growth, which in turn improves upper growth including the shoots, leaves, flowers and fruits (Theunissen et al., 2010).

Vermicompost is a nutrient-rich, microbiologically-active organic amendment that results from the interaction between earthworms and microorganisms during the breakdown of organic matter. It is a stabilised, finely divided peat-like material with a low C:N ratio, high porosity and high water-holding capacity, in which, most nutrients are present in forms that are readily taken up by plants. Earthworms act as mechanical blenders, and by fragmenting the organic matter, they modify its physical and chemical status by gradually reducing the ratio of C:N and increasing the surface area exposed to microorganisms, thus making it much more favourable for microbial activity and further decomposition.

Ever increasing use of chemical fertilizers without an adequate organics has deteriorated the fertility and productivity of soil and also aggravated multi-nutrient deficiencies in soil and plant system (Gupta and Singh, 2006). Further, change in the cropping pattern, intensive cultivation and indiscriminate use of pesticides with an objective to obtain more and more crop yield, has not only made agriculture a profitable commercial venture but has also brought in several problems of pests and diseases, and ecological crises. As the nitrogenous fertilizers are soluble and as such they may leach down into ground water as for example presence of nitrate in underground waters of some parts of UP, Haryana, Punjab, Gujarat, has become a potent source of blue baby disease (Gupta, 2005).

Introduction

Earth worm bring about fertility in the soil was first highlighted by Charles Darwin in 1881 when he published his book on the “Fermentation of vegetables mould through the action of worms. Since then, the vermiculture has become an important aspect of biological or organic farming. Vermicompost aspect involves the use of earthworm as multifaceted bioreactors which effectively recycle the nontoxic organic wastes into the soil. They effeciently utilize the friendly soil microflora, demolish the soil pathogens and converts organic wastes into valueable products such as biofertilizers, biopesticides, vitamins, enzymes, antibiotics, growth hormones and proteinaceous biomass. Earthworms play an important role in soil farming in different ways as:

1) They influences soil pH.2) They act as agents of physical decomposition. 3) They promote humus formation in soil. 4) They improve soil structure 5) They enrich the soil. Vermicompost is the excellent form of organic manure and is practically 100 percent humus.

Introduction

Vermicompost is an organic manure (bio-fertilizer) produced as the vermicast by earth worm feeding on biological waste material and plant residues. This compost is an odorless and clean organic material containing adequate quantities of N, P, K and several micronutrients essential for plant growth. Vermicompost is a preferred nutrient source for organic farming. It is eco-friendly, non-toxic, consumes low energy input for composting and is a recycled biological product. Earthworms are soil invertebrates well known for their contribution to soil transformation and turnover, by breaking down of organic material. The effect of earthworms on soils can take three main forms: effects on biological, physical, or chemical soil properties and processes. These can operate eother directly or indirectly.
 
Farmers are aware that earthworms are generally beneficial.  However, few are familiar with the important species they have on their land and the amount or number of earthworm required for their soil is also a big question to them. It is important that farmers must identify and familiarize with the species of earthworms so that they can be utilized for the purpose of vermicomposting.

INTRODUCTION

Generation of solid wastes has a universal problem which are facing by most of the countries in present scenario. These wastes are generated due to several human accomplishments as well as natural disaster. It is estimated that in India nearly 700 million tons of organic wastes is generated annually included leaves, husk, sawdust, steam bark, flowers etc. Vermicomposting is a simple biotechnological process of composting, in which certain species of earthworms are used to enhance the process of waste conversion and produce a better end product. Vermicompost is nutritionally rich natural organic fertilizer, which releases nutrients relatively slowly in the soil and improves quality of the plants along with physical and biological properties of soil. It has a more beneficial impact on plants than soil.

During vermicomposting, earthworms eat and grind substrates, convening with anaerobic micro flora to increase the surface area for microbial colonization and enzymatic action. Screening of locally available earthworm species and their suitability for vermicomposting during summer and winter seasons is very much required for effective recycling of available bio-waste for production of quality organic manure – vermicompost. Earthworm’s vermicompost is proving to be highly nutritive ‘organic fertilizer’ and more powerful ‘growth promoter’ over the conventional composts and a ‘protective’ farm input (increasing the physical, chemical and biological properties of soil, restoring and improving its natural fertility) against the ‘destructive’ chemical fertilizers which has destroyed the soil properties and decreased its natural fertility over the years.

Vermicompost is rich in NKP (nitrogen 2-3%, potassium 1.85-2.25% and phosphorus 1.55-2.25%), micronutrients, beneficial soil microbes and also contain ‘plant growth hormones and enzymes’. It is scientifically proving as ‘miracle growth promoter and also plant protector’ from pests and diseases. Vermicompost retains nutrients for long time but the conventional compost fails to deliver the required amount of macro and micronutrients including the vital NKP to plants.

Municipal solid wastes (MSW), the wastes generated in municipality area, are complex heterogenous in nature due to its collection from different places like residence, markets, institutes, hotels, etc., together before disposal. As per Hazardous waste (Management & Handling) Rules, 1989 and Bio medical wastes (Management & Handling) Rules, 1998, the industrial wastes generated in various factories and biomedical wastes generated in hospitals and nursing homes should not be dumped in MSW collection site as disposal process for those wastes are different as directed by Government of India in those rules. But those wastes produced by smaller units are discarded in street dustbin, which make disposal problematic.

Abstract
Vermicomposting, the process of producing organic manure through earthworm activity, offers a sustainable solution for enhancing soil fertility and agricultural productivity. Vermicompost, often termed "Black Gold," is rich in plant nutrients, growth-promoting hormones, enzymes, and beneficial microorganisms, improving soil's physicochemical and biological properties. In Chhirauta village, Banda district, a group of eight farmers adopted vermicomposting as a livelihood, producing 20 tons of vermicompost and 1 ton of vermiculture annually after training from Banda University of Agriculture & Technology in 2019. By incorporating leguminous crop residues and maintaining optimal moisture (45- 65%) and neutral pH, they enhanced compost quality. Vermiwash, a nutrient-rich liquid byproduct, is also produced and sold. This initiative not only addresses waste management but also promotes organic farming, reduces greenhouse gas emissions, and provides economic opportunities for rural youth. The success of this model highlights vermicomposting's potential for agri-entrepreneurship and sustainable agriculture.
Keywords: Vermicompost, Vermiwash, Organic Farming, Earthworms, Soil Fertility, Agri-Entrepreneurship, Sustainable Agriculture, Waste Management, Black Gold, Chhirauta Village

Introduction

For the majority of people on the planet, especially in developing and undeveloped nations, agriculture is their main source of income (Barragan Ocana and Del-Valle-Rivera, 2016; Guo and Liu, 2022). Additionally, agriculture provides majority of the world’s food and waste (Fróna et al., 2019). The environment, the agriculture sector, and ultimately the food chain are suffering irreversible harm due to the fast eroding agricultural soil (Chalise et al., 2019). Excessive waste production is one of the main issues of this sector (Bahrololoum et al., 2022). Failure to promptly manage this organic waste can lead to environmental contamination, endangering not only human health but also the well-being of other organisms. Additionally, its wastes resources nutrients, water, and land (Munir et al., 2018).

Abstract
The widespread use of chemical fertilizers since the Green Revolution has boosted food production but at the cost of environmental degradation, reduced soil fertility, and compromised food safety. Indiscriminate application has led to groundwater contamination, loss of beneficial soil organisms, and increased crop susceptibility to pests, posing health risks. Organic farming, particularly vermicomposting, emerges as a sustainable solution, utilizing biological nutrients to enhance soil fertility and produce safe, high-quality food. Vermicomposting offers social, economic, and environmental benefits, creating low-skill jobs, requiring minimal investment, and reducing waste through recycling. Techniques like Rhino Vermi Bed and Matka Vermicomposting enable small-scale farmers, women, and rural youth to engage in profitable agripreneurship, fostering economic growth and ecological sustainability despite challenges like market awareness and infrastructure limitations.
Keywords: Vermicomposting, Organic Farming, Food Safety, Environmental Sustainability, Agripreneurship, Soil Fertility, Rural Development, Waste Recycling, Small-Scale Farming, Economic Growth

Vermicomposting is the process of turning organic debris into worm castings by earthworms.

Earthworms feed on decaying material, pass through alimentary canals and excreted as castings.

pH of the castings is 7 (neutral) and the castings are odourless.

Contain high amounts of nitrogen, potassium, phosphorus, calcium, and magnesium.

Contains 5 times the available nitrogen, 7 times the available potash, and 1 ½ times more calcium and rich in humus.

Improves aeration, porosity, structure, drainage, and moisture holding capacity.

Vermicompost is the product of the decomposition process using various species of earthworms, to create a mixture of decomposing bedding materials and vermicast.

This process is called vermicomposting, while the rearing of worms for this purpose is called vermiculture. Vermicast is also called worm casting, worm humus, worm manure or worm faeces and are the end product of the breakdown of organic matter by earthworms. It is a mesophilic process and certain species of earthworms are used to enhance the process of organic waste conversion and produce a better end product. Vermicompost is an excellent organic fertilizer having water soluble macro as well as micronutrients, growth promoters, enzymes and soil conditioner, helpful for growth and development of plants. It helps to improve biological, chemical and physical properties of the soil.

Vermicomposting is the rapid aerobic non-thermophilic composting technique for decomposition of various biodegradable wastes using epigeic earthworms in comparison to other conventional pit or heap composting techniques. Earthworms fragment the half decomposed organic material, mix and promote microbial activity. Worm utilizes 5-10% of food for its body growth and excretes remaining portion as vermicompost. The action of earthworm is both mechanical and biochemical. Mechanical fragmentation of the half decomposed organic material to finer particles by earthworm in its gizzard helps to increase surface area of action by microbes and aeration inside bed. Biochemical action improves the enzymatic digestion, nutrient enrichment and change in organic and inorganic contents.

Earthworms have been on the earth for over 20 million years. In this time they have faithfully done their part to keep the cycle of life continuously moving. Their purpose is simple but very important. They are nature’s way of recycling organic nutrients from dead tissues back to living organisms. Many have recognized the value of these worms. Ancient civilizations, including Greece and Egypt valued the role earthworms played in soil. The Egyptian Pharaoh, Cleopatra said, “Earthworms are sacred.”

As long ago as 1881 Charles Darwin wrote: “It may be doubted whether there are many other animals which have played so important a part in the history of the world, as have these lowly organized creatures”.

The soil of the food bowl states of our country viz. Punjab, Haryana, Western Uttar Pradesh and plains of Uttarakhand have become deficient in organic matter, macro and micro nutrients and trace elements. Now soil has become non living due to death of earthworms and beneficial micro organism. Farmers are using mainly nitrogen and phosphorus in crop production. However 17 elements are essential for plants nutrition for growing of crops. To get maximum yield and output from the crop plants, a vicious cycle of using the maximum amount of chemical amendments is going on. In the chemical amendments, indiscriminate use of both fertilizers and pesticides are included. Due to this indiscriminate use of these fertilizers and pesticides, our environment is being polluted and living organisms on this planet are experiencing the deleterious effects of all this on their health. These chemicals also exert their influence on soil flora and fauna, therefore the balance of macro and micronutrients release in soil is being disturbed and as a consequence soil fertility and productivity is decreasing day by day. Therefore, for sustainable agriculture healthy farming is fast becoming an urgent necessity.

The problems being faced are the destruction of the soil health leading to reduction in production potential, failure of pest control strategies due to the development of pesticide resistance, biomagnification of pesticides such as reside problems in food and water. The food grain produced and assessed with attributes of fertilizers, the fertilizer efficiency seems to be decreasing. In 1970-71 it was 17.1%, declined in 1980-81 to 10.3% and in 1988-89 reached to 8.1%. Now a day, farmers are not properly using organic, green and compost manures in crop husbandry. Soil fertility and ground water level has been declining very fast by adopting intensive farming. If soil health of any country has been depleted, then the food grain production will also tend to decrease.