eChapters

ABSTRACT

Agriculture is an important component of Indian economy contributing over 14% to the National GDP and employment to about 52% of the workforce. The small farm families form the backbone of Indian agriculture. The sustainability of small farms needs to be continuously supported with appropriate technologies and also with promoting off farm employment opportunities in the rural sector. The role of KVKs’ in preparing the next generation farmers’ through imparting training to update their knowledge and skills in modern agricultural technologies related to technology assessment; refinement, demonstration and training of extension personnel to orient them in the frontier areas of technology development. Sh. Narender Singh s/o Sh. Jagdish Rai, Graduate, 42 years old youth from Dharania Village came in contact with KVK, Fatehabad in 2008 and got training from this centre. He was motivated to diversify his traditional system of agriculture with integrated farming system of Dairy Farming, Vegetable, Seed production, inter cropping of Guar in cotton. He also used neem cake and bio control agents in poly houses for management of root knot nematode. He is recycling cow dung from the dairy farm and producing bio gas for domestic consumption with the diversification of farming system. The total expenditure was Rs. 5,55,645 and gross return was Rs. 13,63,100. The farmer benefit cost ratio is 2:45.

Mahatma Gandhi mentioned to those who wanted to serve rural India that their most useful contribution would be in linking brain with brawn.  Only such a combination of intellect and labour can lead to sustainable advances in the productivity and profitability of agricultural holdings.  West Bengal’s Bidhan Chandra Krishi Vishwavidyalaya (BCKV), almost four decades old, is a fitting example of such work.  It has helped the development of two more universities in the State, namely, West Bengal University of Animal & Fishery Sciences and the Uttar Banga Krishi Viswavidyalaya.  It is important that these three universities function like a consortium of educational institutions mandated to help in achieving agricultural advance, agrarian prosperity and rural transformation in the State.

Livestock and livelihoods are intimately related in our country.  The ownership of livestock is more egalitarian than that of land.  Similarly, West Bengal is full of fish ponds.  It is important that cultivation of crops like rice is done by adopting integrated pest management procedures, so that the water in which fish is cultivated does not get polluted with pesticides.

Growth is the fundamental property of all living organisms. It is an irreversible permanent increase in size, volume or mass of a cell or organ or whole organism accompanied by an increase in dry weight. Where, development is sum total of growth and differentiation. It is governed by both environmental and internal factors. The development of a plant is highly complex phenomena (Table 1).

Thermal stress arises whenever there is some increase or decrease in temperature of a body which causes either expansion or contraction in the dimension of body. If body is free to expand or contract, with the rise or fall of temperature, there exist no stress in the body. But if deformation of the body is partially or completely resisted then stresses are set up in the body which is known as Thermal Stress. However amount of stress induced in partially prevented deformation will be small than in case deformation is totally prevented.

Introduction
In the paradigm of development, the Government of India generated a Central Sector Scheme for the people associated with agriculture – a sector contributing to 18.2 per cent of the nation’s GDP, titled “Formation and Promotion of 10,000 Farmer Produce Organizations (FPOs)” with major focus on upheaval of farming community. With well-defined strategy and committed resources the Scheme is set-out to formulate 10,000 new FPOs in the country with budgetary provision of Rs 6865 crore. At the core of formation of each FPO, that are to be developed in produce clusters, wherein agricultural and horticultural produces are grown / cultivated for leveraging economies of scale and improving market access for members. “One District-One Product” cluster to promote specialization and better processing, marketing, branding & export. Under this Central Sector Scheme with funding from Government of India, Formation & Promotion of FPOs are to be done through the Implementing Agencies (IAs). Presently 09 Implementing Agencies (IAs) have been finalized for formation and promotion of FPOs viz. Small Farmers Agri-Business Consortium (SFAC), National Cooperative Development Corporation (NCDC), National Bank for Agriculture and Rural Development (NABARD), National Agricultural Cooperative Marketing Federation of India (NAFED), North Eastern Regional Agricultural Marketing Corporation Limited (NERAMAC), Tamil Nadu-Small Farmers Agri-Business Consortium (TN-SFAC), Small Farmers Agri-Business Consortium Haryana (SFACH), Watershed Development Department (WDD)- Karnataka, and Foundation for Development of Rural Value Chains (FDRVC)- Ministry of Rural Development (MoRD). The Implementing Agencies (IAs) engage Cluster Based Business Organizations (CBBOs) to aggregate, register & provide professional handholding support to each FPO for a period of 5 years. CBBOs have been empanelled & engaged by IAs. CBBOs operate as an end-to-end knowledge for all issues related to FPO promotion. During 2020-21, a total of 2200 FPO produce clusters were allocated for formation of FPOs, which also include specialized FPO produce clusters such as 100 FPOs for Organic, 100 FPOs for Oil seeds, etc. Of these, 369 FPOs are targeted for 115 aspirational districts in the country. Additionally, NAFED would form the specialized FPOs which should necessarily be forwardly linked to the market, agri-value chain, etc. NAFED will provide market and value chain linkages to the FPOs formed by other Implementing Agencies. NAFED has formed & registered 05 Honey FPOs during current year in Uttar Pradesh, Madhya Pradesh, Rajasthan, Bihar and West Bengal. FPOs are earmarked to provide financial assistance upto Rs 18.00 lakh per FPO for a period of 03 years. In addition to this, provision has been made for matching equity grant upto Rs. 2,000 per farmer member of FPO with a limit of Rs. 15.00 lakh per FPO and a credit guarantee facility upto Rs. 2 crore of project loan per FPO from eligible lending institution to ensure institutional credit accessibility to FPOs.

Nanotoxicology is the study of the toxicity of nanomaterials. Because of quantum size effects and large surface area, nanomaterials have unique properties compared with their larger counterparts

Nanotoxicology is that branch of bionanoscience, which deals with the study and application of toxicity of nanomaterials. The nanomaterials, even when they are made of inert elements like gold, become very active at a nanometer range. Nanotoxicological studies are intended to determine whether and to what extent these may pose a threat to the environment and to human beings. For instance, Diesel nanoparticles have been found to damage the cardiovascular system in a mouse model.

Human health and safety

Calls for tighter regulation of nanotechnology have occurred alongside a growing debate related to the human health and safety risks associated with nanotechnology. The Royal Society identifies the potential for nanoparticles to penetrate the skin, and recommend that the use of nanoparticles in cosmetics be conditional upon a favorable assessment by the relevant European Commission safety advisory committee. Andrew Maynard also reports that ‘certain nanoparticles may move easily into sensitive lung tissues after inhalation, and cause damage that can lead to chronic breathing problems’.

CLASSIFICATION

• Wistar albino
• Sprague Dawley
• Long Evans
• Charles

Wistar Albino

Wistar albino is common strain found in most laboratories and used extensively for research. They have the following characteristics: (i) Less resistance of inflammation, (ii) No incidence of spontaneous tumor.

Sprague Dawley

Water is the only substance that exists in the atmosphere in all the three phases, i.e., solid, liquid and gas. The moisture on the earth’s surface is in a constant phase change. The moisture content of the atmosphere is about 0.035% of all fresh water. The atmosphere receives its supply of moisture from the earth’s surface through evaporation from oceans, lakes, rivers, damp soil, etc. and through transpiration from vegetation. Water vapour is the gaseous state of water and is invisible.

The amount of water vapour present in the atmosphere is called atmospheric moisture or humidity. It is a measure of the amount of water vapour dissolved in the air, not including any liquid water or ice falling through the air. While humidity itself is a climate variable, it also interacts strongly with other climate variables. The humidity is affected by winds and by rainfall. Moisture content is determined by the local rate of evaporation, air temperature and the horizontal transport of moisture. Humidity indicates the likelihood of precipitation, dew or fog. It also plays a major role in the heat budget and the weather phenomenon of the atmosphere.

Introduction

Satellites are specifically made for telecommunication purpose. They are used for mobile applications such as communication to ships, vehicles, planes, hand-held terminals and for TV and radio broadcasting. They are responsible for providing these services to an assigned region (area) on the earth. The power and bandwidth of these satellites depend upon the preferred size of the footprint, complexity of the traffic control protocol schemes and the cost of ground stations. A satellite works most efficiently when the transmissions are focused with a desired area. When the area is focused, then the emissions don’t go outside that designated area and thus minimizing the interference to the other systems. This leads more efficient spectrum usage. Satellite’s antenna patterns play an important role and must be designed to best cover the designated geographical area (which is generally irregular in shape). Satellites should be designed by keeping in mind its usability for short and long term effects throughout its life time. The earth station should be in a position to control the satellite if it drifts from its orbit it is subjected to any kind of drag from the external forces.

Bone is an integral part of musculo-skeletal system of body. In the living animal it is bluish pink, whereas, fresh dead bone is yellowish-white in colour. It is hard and resistant to pressure but also have certain amount of elasticity. Its tensile strength is equal to the cast iron, though bone three times lighter and ten times flexible to cast iron.

Number of bones: The number of bones of the skeleton varies with age and species. Number of bones in cattle-210; Horse-208; Dog-271; Fowl-166 and human-208 (207-212)

Composition of bone: Bone contains different bone cells, organic and inorganic matrix and water. Organic matrix is about one-third and Inorganic matrix is two-third weight by volume. The organic material consists of 90% collagen [type-I (maximum), type V and type XII] and 10% non-collagenous glycoprotein and bone specific proteoglycans (osteocalcin, osteonectin, sialoprotein, bone phosphoproteins and small proteoglycans) and bone growth factors [TGF-beta family; Insulin-like growth factor-1, 2; bone morphogenetic protein (BMP); platelet derived growth factor (PDGF); Interleukin -1 (IL-1); Interleukin-6 (IL-6); colony stimulating factor]. Organic matrix of bone resembles the matrix of dense fibrous tissues such as tendons, ligament and joint capsule. It is not certain whether all of these proteins are synthesized by bone cells or whether they are synthesized by cells outside of the bone and then incorporated into the bone matrix. However, their presence within bone and their potential to affect the activity of bone cells suggests they have important role in controlling bone cell functions. Inorganic matrix of bone or mineral component of bone serves as an ion reservoir and gives bone of its stiffness and strength. It reserves 99% of body calcium, 85% body phosphorus and 40-60% body sodium and magnesium. Inorganic matrix of bone is composed of 85% calcium phosphate, 12% calcium carbonate, 3% of magnesium phosphate, calcium fluoride and magnesium carbonate. It also contains traces of chlorine, sodium, potassium. These minerals remain as hydroxyapatite crystal form within bone. However, bone mineral crystal is not pure hydroxyapatite, instead they contain both carbonate and acid phosphate groups (HPO₄) and bone crystal does not contain OH groups. Bone matrix has such great durability and stability that it can remain essentially unchanged and retain much of its strength for centuries after death. Removal of organic matters renders the bone fragile, brittle and shattered, whereas, decalcification renders bone soft and pliable and resistant to fracture.

Introduction

Quality of Work Life (QWL) is a popular concept among the organizations. Work is an essential part of everyday human life. Work influences the overall quality of life. Human resources are one of the main assets of any organization. Quality of work life (QWL) is one of the important subsystems of human resource management. There are economic, social, psychological and organizational aspects of work life. Many new subsystems are being added to human resource management with employees’ changing needs, culture, expectations, and work environment.

Introduction 
Rural entrepreneurship is not only important as a means of generating employment opportunities in the rural areas with low capital cost and raising the real income of the people, but also its contribution to the development of agriculture and urban industries Building capacity of Rural Agri-prenuers are a promising solution for unemployment (Renuka, 2020), migration, economic disparity, reduce poverty, development of rural areas and backward regions. Most of the rural populace is associated with agriculture and allied activities as pedigree occupation. However, to be commercially viable, these units need to sharpen their skill sets to thrive as a successful venture. India is home to about 700 tribal groups with a population of 104 million, as per 2011 census. This indigenous people constitute the second largest tribal population in the world after Africa. Tribal population of Jammu & Kashmir is among the nascent Tribal Groups joining the main stream of planned development, to which they have brought a distinct and colourful cultural variety. Their economy is closely linked with the forests and they are living a substandard life because of their primitive mode of livelihood. Majority of them are placed below the poverty line, possessing meagre assets and are exclusively dependent on wages, forest produce and farming, that too in a traditional way which leads to non remunerative returns. The peculiar aspect of tribals of our state is their scattered population who inhabit the difficult and remote geographic terrains which poses a severe threat to their speedy development. In J&K state the following communities have been declared as scheduled tribes 1. Balti, 2. Beda, 3. Bot, Bota, 4. Brokpa, Drokpa, Dard, Shin, 5. Changpa, Garran, 6. Mon, 8. Purigpa, 9. Gujjar, 10. Bakerwal, 11. Gaddi and 12. Sippi.

Introduction

Soil test-based fertility management is an effective tool for increasing productivity of agricultural soils that have a high degree of spatial variability. However, major constraints impede wide scale adoption of soil testing in most developing countries. In India, these include the prevalence of small holding systems of farming as well as lack of infrastructural facilities for extensive soil testing (Sen et al., 2008). Under this context, GIS-based soil fertility mapping has appeared as a promising alternative.

Marula nut (Sclerocarya birrea subsp. caffra) is a highly valued tree in most parts of Southern Africa because of its medicinal and nutritional properties. The marula tree is adapted to the semi-arid conditions that characterize most parts of sub-Saharan Africa and renders them unsuitable for conventional crop agriculture (Moyo Mack, 2009). The unique nutritional properties of marula and its high tolerance to dry conditions provide opportunities for its development into a plantation crop. On the other hand, the demand for marula plant parts, mainly the bark and roots as medicinal remedies, poses a great threat to wild populations. In the long term, the growing demand of marula products in the food, pharmaceutical and cosmetic industries will not be sustainable from wild populations alone. A rich genetic diversity in Sclerocarya birrea has  reported by Muco et al.

A nutrient budget is a valuable indicator of the long term sustainability of a cropping system. It indicates where fertilizer application is inadequate and leading to decline in the soil nutrient status. Conversely, it can indicate excessive inputs which result in a nutrient surplus and greater potential for losses to the environment and waterways. (Combs et al., 1996) Thus nutrient budget is the comparison between all the sources of nutrients available to the producer and the requirement of nutrients to meet the crop and soil needs. The sources can either be from on the farm, such as livestock manure or credits from legumes, or from off the farm, such as purchased fertilizer or irrigation water. The requirement is the amount of nutrients needed by the crop to obtain the expected yields.

Most values for nutrients available from different sources (credits) and crop nutrient requirements are calculated from estimates taken from many years of long historical averages and field research. There is no “real time” method of calculating exactly what neither the crop’s nutrient requirement or the nutrients available are at any one time. More closely, both the nutrient requirements and availability are based on past performance for the climatic and soil condition. These values are given with some surety that the crop grown will be supplied with adequate nutrient during the growing season and the crops will not be limited in its growth. All incidental environment losses, such as runoff and leaching, have been accounted for. Climatic conditions, particularly temperature and soil moisture, greatly influence both the crop performance and the soil’ s capacity to provide nutrients to the plant. During any growing season, there can be many changes in the climate conditions that will affect both the crop growth and soil delivery of nutrients to the crop.

Although a nutrient budget is not an exact formula for supplying nutrients, it is one method for organizing the nutrient needs ofthe crop with the nutrients available on the farm. Nutrient budgets can easily determine if there is a gross imbalance between the nutrients that are available vs. the amount required. Nutrient budgets are one of the best methods to see the over all supply of crop nutrients available, compared to the estimated crop needs as given by historic records and field research. Continued use of soil testing, plant and water analyses and yield monitoring are essential to maintain good nutrient balance with desired results.

7.1    Pre-Harvest Factors Responsible for Post Harvest Losses
    
7.2    Harvesting Method
    
7.3    Post-Harvest Causes Responsible for Losses

1.     Concentration

Seed sampling

Seed sampling is to draw a portion of seed from seed lot that represents the entire seed lot. Seed lot is a uniformly blended quantity of seed either in bag or in bulk.

Water vapour changes to the liquid water through condensation process. Condensation is the direct cause of the various forms of precipitation. It occurs as a result of changes in air volume, temperature, pressure or humidity. Water vapour can also be converted directly into the solid form through a process called sublimation. The latent heat expended in evaporation is liberated in the process of condensation. Four mechanisms may lead to condensation.

13.1 Exchange Capacity

Soil colloidal particles carry both negative and positive charges on their surface which attract and hold equivalent amount of oppositely charged ions to their surface. The total number of negative charges present on a given mass of soil or capacity of a given mass of soil to exchange cations or total number of cation held by a given mass of soil is termed as cation exchange capacity (CEC). Similarly, the capacity of a soil to retain anions is known as anion exchange capacity (AEC). The ion exchange capacity of a soil depends upon the type and amount of colloidal particle (clay and organic matter) present in the soil. Ion exchange capacity (CEC / AEC) is expressed as milliequivalent ion (cation / anion, respectively) per 100 g of soil (meq / 100g). It is also expressed as centimoles of charge (positive / negative) per kg of soil [cmol (±) / kg]. Meq / 100g = cmol (±) / kg of soil.