eChapters

Introduction

Crop models can be broadly classified into two categories: dynamic or process-based crop simulation models (CSMs), and reduced form statistical models. Since simulation models are based on various plant-related processes, they develop or alter in tandem with plant growth (Chetty 2009); as a result, they are inherently nonlinear (Olmstead 2009). To run, calibrate, and validate, they require a significant amount of date input. However, statistical models are helpful in situations where there is a lack of data because they describe the relationships between a subset of variables while keeping the others constant. (Chetty 2009).

India is basically an agrarian economy where 57.8% of rural households are engaged in agriculture (Situation Assessment Survey of Agricultural Household, 2021). 48.9 per cent of the Indian work force is employed in the agricultural sector, (ILO, 2016). The estimated Indian population for the year 2050 is 1.7 billion which will raise our food demand to ∼400 million tonnes (Rao et al., 2018). In this context, Indian agricultural production system will have to take up the challenge to feed l7.5% of the global population with only 2.4% of land and 4% of the available water resources at its disposal.

Major advantage of chemical herbicides over other methods of weed control is its ease of application, which saves the cost of labour for the farmer. Effectiveness of herbicide depends on how long it remains in active form in the plant /soil. The form in which any herbicide is available in the market is known as herbicide formulation. The technical active ingredient (ai.) of the herbicide is converted to a formulations so as to improve easiness of handling, retention on leaf surface, absorption and movement in the plant. Herbicides are available in different formulations.

When a herbicide is applied to the soil, it is subjected to various interactions with soil and surrounding environment which ultimately determines its persistence. Dissipation of these compounds from soil system is by three main processes viz., physical (volatilization, leaching and runoff), chemical (photochemical decomposition, adsorption by organic and inorganic colloids and chemical decomposition) and biological (microbial decomposition and plant uptake) 

1. Physical Processes

a) Volatilisation

Indian tea has a global reach being the second largest tea producer in the world. Indian tea is one of the finest in the world. Darjeeling tea is the first product to get a geographical indicator tag in India. 83 % of the tea produced in India is from Assam and West Bengal and 17% from the south Indian states of Kerala, Karnataka and Tamilnadu. Weeds are a major problem in tea gardens.

Weed flora

Drymaria cordata, Bidens pilosa,, Cynodon dactylon, Panicum repens, Celosia argentea, Ageratum conyzoides, Centella asiatica, Borreria hispida, Oxalis latifolia, Mikania micrantha, Paspalam conjugatum,

3.1 Introduction

Rice is the main staple food for most of the world’s population and plays a key role to maintain food security of many countries. More than 90% of the rice production globally comes from Asia and also more than 90% of rice consumption is done in Asia (IRRI, 1997). In Asia, more than two billion people get almost 60-70 percent of their daily energy requirement from rice and its products (Yogeswari and Porpavai, 2018). As for India, since independence the country has witnessed a remarkable progress in rice production.

7.1 What is Soil Moisture Conservation Technique?

In situ soil moisture conservation means capturing rain water and retaining it in soil for utilization by plants for better growth and increase in biomass and grain yield. This is achieved through rain water harvesting on farm or field where crops are planted to get benefit from the conserved rainwater. It reduces rainwater loss through runoff and increases rain water infiltration time, thereby increasing the amount of rain water in the soil that will be useful for crop production.

1. Which type of vegetable is often grown in shade net house?

a) Tomato

c) Radish

b) Lettuce

 d) Cucumber

2. What is the primary advantage of greenhouse cultivation for vegetable production?

a) Increased exposure to natural elements

 b) Protection from pests and diseases

 c) Lower cost of production

 d) Reduced need for irrigation

17.1 Introduction

Mechanical irritability is a general phenomenon exhibited by a cell. Apart from a general response to mechanical deformation, there are specialised receptors distributed internally as well as externally that act as mechanoreceptors. It includes the following:

1. Algesireceptor (Nociceptors): For pain.

2. Georeceptor: A gravity and acceleration receptor.

3. Phonoreceptor: Used for vibratory contact and sensation of hearing and also for equilibrium.

Fishes are generally unisexual and reproduce by several methods. Some families (Sparidae and Serranidae) are hermaphrodite also. Alz (1964) reported that in certain species, hermaphrodism becomes a normal way of life. In hermaphroditic f ishes, self-fertilisation is a common process. Parthenogenesis could have been produced experimentally (Austin and Walton 1960). There maybe a few secondary organs that increase reproductive fitness. The genital papilla is a small, fleshy tube behind the anus in some fishes, from which the sperm are released; the sex of a fish can often be determined by the shape of its papilla.

35.1 Introduction

Age and growth studies are vital aspects of modern fisheries because this information is pivotal for fish population and management policies.

Age and growth are important factors in the study of the natural history of fish. Age determination is an ancient practice that aids in systematic studies of fish and f isheries. Age denotes the activities of the organism about its size, whereas growth can be defined as an increase in any dimension of an organism from time or age until maturation. A fish ages as it grows, and vice versa. Fish age determination is important to marine resource management.

Introduction

It is said that Rome was not built in a day. Similarly, Extension was not master minded by one individual; rather it evolved through hard work of extension professionals around the world over more than a country.

The necessity of a human being is food, for which he must rely on agriculture. The agriculture to achieve its expected growth must depend on several factors which include technology, research and obviously extension. The basic function of agricultural extension is to train, teach and guide farmers. Agricultural extension’s primary role is to mentor, instruct, and train farmers.

Introduction

What is community development?

Community development refers to the process of bringing community people together after identifying issues related to them and taking a collective action. Community development empowers residents and builds stronger, more integrated communities. Community development is an all-encompassing approach based on the ideas of empowerment, human rights, inclusiveness, social justice, self-determination, and collective action (Kenny, 2007).

Meaning and Definitions

Agricultural journalism refers to the specialized field of journalism focused on reporting, analyzing, and disseminating information related to agriculture, farming, rural development, and related topics. It plays a crucial role in educating and informing the public, policymakers, and stakeholders about the agricultural sector, its challenges, innovations, and contributions to society.

Here are a few definitions of agricultural journalism.

Bennett’s Hierarchy

To set the scene for this we head back to the 1970s when Claude Bennett worked as a specialist in evaluation with the extension service. He wanted to make sure that extension was collecting information that was able to illustrate the effectiveness of extension, and help extension improve its services to clients. So, he developed seven categories of criteria for evaluating extension programmes based on what he called a ‘seven link chain of events. He put these into a hierarchy literally in his article describing this-as a diagram of seven steps.

Logical Framework Approach (LFA) Background and Description, Variation of LFA

Definition The Logical Framework Approach or LFA is a systematic and analytical process for objectives-oriented project planning and management

Background: The Logical Framework Approach (LFA) was developed for USAID in the 1960s. Since then, it has been adopted and adapted by many other international development organisations. Among them was the German agency GTZ, which derived its Goal-Oriented Project Planning (ZOPP) from it.

Indicators for Impact Assessment-meaning and Concept

Indicators for impact assessment: Indicators are common tools to determine the performance and then the result of the technology/extension/communication interventions. They measure the accomplishment of the project’s goals and targets. Criteria of indicators should be defined during the formulation stage, but they often need to be specified in greater detail during implementation. The indicators should measure intangible and non-tangible changes, particularly in projects that value factors such as personal and social development.

SWOT Analysis-Concept

Concept of SWOT

The concept of SWOT surfaced in 1960 as, management tool indicating four dimensions of strength, weakness, opportunity and threat and is widely used in business organizations. It’s use is very common in judging the prospectus of any organization particularly rural projects. It’s four attributes have wider applicability to decide whether to move ahead or not.

Origin of SWOT

Introduction

Bihar lies in the river plains of the basin of the river Ganga. It is endowed with fertile alluvial soil ground water resources. This makes the agriculture of Bihar rich and diverse. Bihar is one of the major producers of fruits in India with 6.7 percent of national production respectively. It ranks sixth among other States in the production of fruits respectively. Considering versatile climatic feature of Bihar, there is huge potential to grow almost all the fruits. The major fruit crops grown in Bihar are Litchi, Mango, Guava, Banana, etc. Minor crops like Makhana, Pineapple, strawberry are also grown.

Introduction

There is a large market for organic products, growers worldwide are faced with a potentially dangerous situation. While the majority of organic farmers prioritize soil quality, encompassing the physical, chemical, and biological aspects of soils, they often employ several inversion tillage techniques (Ploughing, disking and cultivating) to prepare seedbeds, integrate cover crops, and control weeds. These actions may worsen the condition of the soil. (Bruulsema et al?, 2003).

Introduction

Entrepreneurship is considered one of the most significant variables influencing the economic development of society and the growth of every country. In addition to human resources, effective resource management is also essential for a nation’s success. Entrepreneurship involves the act of creating something as an entrepreneur. Entrepreneurs are thought to play a key function in initiating and maintaining socioeconomic development. As women cover up approximately half of the population their societal status significantly significantly impact the country’s development.

Introduction

Precision farming is a site-specific farming method that works on a large scale, while IFS divides the whole land into fragments. Both Precision farming and IFS work on the concept of “no wastage”. When we install some components of precision farming in IFS, such as remote sensors, yield mapping, SSNM, yield monitors, and some others, the yield and quality of output increase. Initially, farmers may not get much profit from them because their installation cost is very high, but after a while, they earn more profit from this. IFS are good for Indian farmers because many enterprises are connected to each other in IFS, and farmers can get income from different sources. It generates employment opportunities for other farmers. It’s good for those with less land, and when we include PF in IFS, entrepreneurship opportunities are generated for educators like farming device installation, operation, maintenance and many others.

Mango (Mangifera indica) is a tropical fruit tree that is well-known and cherished for its delicious, sweet, and juicy fruit. It is one of the most widely grown and economically important fruit crops in the world, primarily cultivated in tropical and subtropical regions. Mangoes are not only enjoyed for their taste but also for their nutritional value, as they are rich in vitamins, minerals, and antioxidants.

However, like all agricultural crops, mangoes are susceptible to a range of diseases that can impact their growth, yield, and fruit quality. These diseases can be caused by various pathogens, including fungi, bacteria, viruses, and nematodes.

1. Powdery mildew (caused by Oidium mangiferae) is a fungal disease that affects mango trees, leading to significant losses in fruit production if left unmanaged.

Introduction

Mulberry is a very hardy and fast growing perennial plant belonging to the genus Morus of the family Moraceae. The leaf of mulberry is used for feeding and rearing of the silkworm, for the production of silk yarn. It is estimated that mulberry silk worm (Bombyx mori) contributes around 90 % of the total global raw silk production and it is a very attractive economic activities mostly to the rural people. In addition to the utilization of mulberry leaves as silkworm feed, it is being used for many other purposes due to its high nutritive value and delicious taste is getting importance as valuable food stuff as well as environmental importance of mulberry taking into account several aspects of its role as animal feed, foodstuff, phyto medicine and remediation of polluted soils and atmosphere etc.

Seed is defined as a ‘matured ovule’ or a reproductive unit formed from a fertilised ovule consisting of an embryo, food store and protective coat. These essential constituents are common to all seeds in different groups of seed bearing plants. The knowledge of seed morphology is essential for artificial regener ation as it can influence the collection, processing, storage and treatment of seeds. The external and internal morphologies of seeds are stable. Therefore, they provide reliable criteria for the positive identification of unknown seeds.

Importance of Tree Seed

Introduction

The applied aspect of tree improvement consists of the development of improved trees followed by the mass production of the improved stock. No programme will be successful until both have been achieved. Too often, the improvement of forest trees is obtained without sufficient concern about how the improved material is to be reproduced and used on an operational scale. The better trees can be regenerated through seed or by vegetative propagation. All tree improvement programmes must have seed production at some stage of their development if continued gains are to be achieved. This is even true for the programmes using vegetative propagules for large-scale operations of planting; seed is needed for the development of outstanding trees, from which, vegetative propagation can be achieved.

Introduction

In India, about half of the geographical area is classified as degraded and as such, these areas are not able to produce services of any value (Khan, 1988). So, there is growing concern about the serious degradation in the quality of forests, besides the significant reduction in the tree cover in the country. To answer the prevailing conditions in the current era, one needs better nursery management to produce quality planting stock.

Forest nurseries are an essential part of forestry programmes, which cover traditional or intensively managed commercial forestry with introduced species. Field plantations should do with more productive species, but of improved quality and vigour. In order to encourage the forest tree culture, the use of quality planting stock and its subsequent management is very important.

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.

Introduction

Forest trees constitute ~82% of the continental biomass and harbour >50% of the terrestrial biodiversity. They also help to mitigate climate change, and provide a wide range of products that meet human needs, including wood, biomass, paper, fuel and biomaterials. Field-grown trees are routinely exposed to environmental stress. Current and predicted climatic conditions, such as prolonged drought, increased salinisation of soil and water and low temperature episodes pose a serious threat to forest productivity worldwide, affecting tree growth and survival. According to the reports of the Intergovernmental Panel on Climate Change, these stresses will increase in the near future because of global climate change.

Last few decades have witnessed an increasing number of pets attending clinics/hospitals for cardiac care because of changed life style of owners as well as pets, more awareness of the owners and an increase in number of veterinary medical specialist with better diagnostic facilities. Cardiac failure and cardiac arrest are the two important outcome of cardiac diseases with variable treatment result. Heart functioning is affected not only in primary diseases of heart but also in diseases of organs other than the heart. Without correct diagnosis of cardiac abnormalities, treatment may be futile with a fatal outcome. Nowadays diagnosis of cardiac abnormalities is facilitated with the aid of modern diagnostic technology.

Diseases of gastro-intestinal tract are very common in dogs and cats. Gastro intestinal tract starts from mouth to anus. The first step in making diagnosis of gastro-intestinal disease is to localize the problem. Whether it is buccal cavity, esophagus, stomach, or intestines. Cursory history for seemingly simple complaint like vomiting, anorexia or loose feces may be unrewarding because gastrointestinal diseases may be primary (concerning with only gastro intestinal tract and its functions) or secondary (due to underlying disease/ disorder of organs other than gastro-intestinal tract). Therefore, for ascertaining the cause of gastrointestinal signs (anorexia, nausea, vomiting, regurgitation, constipation, loose feces, bloody feces), a thorough examination of all body systems is more logical. As with other body systems, a comprehensive systematic approach is needed for diagnosing diseases of gastro-intestinal tract also.

The term “Hepatology” is derived from the Greek words “hepatikos” and “logia” meaning liver and study respectively. It is the branch of medicine dealing with the study of structure, function, diseases and abnormalities of the liver, gall bladder, and biliary tree. Liver/hepatic diseases in companion pets vary from multifactorial hepatitis (acute and chronic), cirrhosis, portosystemic shunt, copper storage disease, hepatic lipidosis, and hepatic neoplasm to fulminant hepatic failure. The etiology of liver diseases also varies from infection, auto-immune, metabolic to genetic factors. The hepatic disorders are quite common in canines and felines. Moreover, the diagnosis of liver malfunctioning is loosely given in pet practice without any supportive evidence.

Introduction

The compounds produced one kind of microbe that are poisonous to another type of microbes are known as antibiotics. Actinomycetous bacteria and certain fungi are the primary producers of antibiotics. Antibiotics have highly complicated chemical makeups and formulations, which are frequently unknown. To combat plant diseases, however, antibiotics were first introduced in 1950. Typically, plants absorb and then move systemically internal antibiotics used for managing plant diseases. Usually, they operate on the host or the pathogen directly or after going through transformation to control plant diseases. In addition to acting as eradicators, they also serve as protectors and offer resistance to the invasion of viruses, and their impact lasts for a while.

Introduction

• Nematicides are chemically synthesized products that kill or adversely affect nematodes.

• These products can have a nematicidal or nemastatic effect on nematodes.

• Nematicidal compounds are highly toxic and kill exposed nematodes.

• Nemastatic compounds do not kill nematodes but interfere with the migration of nematodes towards the roots of the host plant or delay nematode hatching.

• Many nematicides are broad spectrum, volatile, soil fumigant.

• They are not only active against nematodes, but also insects, fungi, bacteria, weed seeds and almost everything else that lives on the ground.

Sprayers

Sprayer is a machine used to apply liquid chemicals on plants to control pest and diseases. It can also be used to apply herbicides to control weeds and to spray micro nutrients to enhance plant growth. The main functions of a sprayer are

•             Breaking the chemical solution in to fine droplets of effective size.

 •            Distributing the droplets uniformly over the plants.

 •            Applying the chemicals with sufficient pressure for positive reaching the plants

 •            Regulating the amount of liquid applied on plants to avoid excessive application.

1.1 Introduction

In the contemporary context, women's empowerment in rural India holds immense significance. These women fulfil critical roles as farmers, wage earners, and entrepreneurs, all while managing family responsibilities such as providing food and caring for children and older people. Despite their vital contributions, rural women face entrenched challenges, including gender based discrimination, societal norms, and unequal access to education, healthcare, property, and financial services. The burden of unpaid work, particularly prevalent in economically disadvantaged households, further compounds these obstacles. Notably, women from indigenous and grassroots communities contribute significantly to their communities’ livelihoods and serve as custodians of traditional knowledge essential for cultural preservation.

11.1 Introduction

Gendered Advancements utilize strategies of sex and intersectional investigation to form modern information. It looks to saddle the inventive control of this sort of examination for advancement and revelation. The agent's address is, do considering these components include important measurements to investigate? Do they take research in unused bearings? To reply to these questions, Gendered Developments creates down-to-earth strategies of sex, sexual orientation, and intersectional examination for researchers and gives case ponders as concrete outlines of how this sort of investigation leads to revelation and advancement.

Introduction

Packaging is one of the most important processes to maintain the quality of food products for storage, transportation and end-use. The basic functions of packaging are considered as protection, containment, information and convenience. Food packaging was initially considered to increase the marketable life of the food in a container by protecting it from the influence of the environmental factors. Then it was expected to be informative, easy-to handle and disposal-friendly with increased functionality. Current innovations of food packaging technology are geared to ensure one/ all of these properties along with better protection, more efficient quality preservation and enhanced safety of the packaged food. Innovative packaging technologiesalso prevent the rate of quality deterioration and facilitate easy handling of the produce during distribution and marketing. During distribution, the quality of the food product can deteriorate biologically and chemically as well as physically. Innovative packaging technologies are the most important and challenging technologies to overcome these limitations.These technologies require specific knowledge and appropriate training and understanding for rationally selecting the most suitable packaging for each product and intended use. Innovative packaging of foods includes active packaging, smart packaging, on-the-go packaging, intelligent packaging etc. which have been briefly discussed in this manuscript.

The production of fruit and vegetables has recently increased significantly and even surpassed the total grain production in the country due to increased awareness of consumer and positive government initiatives (Schieber et al., 2001; Sagar et al., 2018; Malenica and Bhat, 2020). But due to limited production and area, the importance of excess production during a particular season and waste management arises at highest priority level. Moreover, fruits and vegetables waste are a serious problem for environment as most of themare being disposed of as landfills or directly disposed off to water bodies such as rivers (Wadhwa and Bakshi, 2013). Fruits and vegetables are perishable in nature and rich source of nutrients and vitamins, which results in microbiological contamination (Coman et al., 2019; Bas-Bellver et al., 2020). Foods wastes are usually organic residues generated by the processing of raw agricultural materials into food and are made up of liquid (wastewater) and solids (Bas-Bellver et al., 2020). The wastewater results from the cleaning processes or in the form of excessive or polluted process water. Its dry material content is typically less than 5% by mass. It possibly also contains organic or inorganic cleaning agents or disinfectants. Solid food wastes with an organic origin have remarkably high water content (mostly about 80% by mass). They are usually characterized by a constant quality and purity due to the forgone processes. The fact that these substances are removed from the production process as undesirable ingredients makes them, wastes.

Ice Bank Cooler: Air forced cooler leads to desiccation of the produce. So use forced air high humidity cooler and these are known as Ice Bank Cooler. Ice bank Coolers are useful for strawberry.

Ice bank cooling: Storing of fruit and vegetable in storage chamber with positive ventilation and system countries where ice formation is allowed during night time (as electricity cost of night is less as compared to the day time). Melting of ice occurs during day time and with proper air circulation by means of ventilation process, approximately 0.5-10C temperature with 90% RH in the chamber is maintained. Ice Bank Cooler / Air forced cooler leads to desiccation of the produce (Plate 205). So use forced air high humidity cooler and these are known as Ice Bank Cooler. Ice bank coolers are useful for strawberry.

Ice cream cone: A thin crisp edible cone for holding ice cream and filled with ice cream.

Ice cream: Ice cream may be define as frozen dairy product made by suitable blending and processing of cream and other milk products together with sugar and flavour.

Ice point: It is the temperature of equilibrium between ice and water under normal atmospheric pressure (0oC).

Ichthylogy: It is the branch of the zoology that deals with the study of fishes (Pisces).

Vacreation: The pasteurization of the milk or cream under reduced pressure by direct steam is called vacreation.

Vacuum: The state of negative pressure.It is equal to atmospheric pressure minus absolute pressure.

Vacuum cooling: A technique of cooling vegetable (leafy vegetables, asparagus Brussels sprouts) having a high surface to volume ratio rapidly and uniformly by boiling off some of their water at 10C and at low pressure (5 mm of Hg) into a sealed container. The produce is cooled by evaporation of water from the tissue surface and is more rapid than hydro cooling.

Vacuum drier: A drier used to dry heat sensitive products where low pressure lowers the temperature, helps to retain natural flavour and minimizes oxidation and browning is called vacuum drier (Plate 325).

Vacuum gauge: A gauge indicating degree of rarefaction (state or region of minimum pressure in a medium) below atmospheric pressure.

Vacuum packed: A packhaving much of the air removed before being hermetically sealed is called vacuum pack (Plate 326).

Training plays a vital role in enhancing the capabilities of individuals to perform their roles effectively. In the context of leadership development, training aims to equip potential leaders with the necessary skills, knowledge, and attitudes to excel in their roles. This paper examines the objectives of leadership training and the methods by which these objectives can be achieved.

Meaning of Training

The term ‘training’ refers to a structured process designed to improve an individual’s ability to fulfill their responsibilities. It involves imparting knowledge, developing skills, and shaping attitudes to enhance professional competence. For potential leaders identified through various selection methods, training serves as a means to cultivate essential leadership traits that may be lacking initially.

Teaching

Extension teaching denotes a structured process aimed at fostering the learning experience. This process encompasses the facilitation of activities, provision of materials, and offering guidance necessary for the learner. In essence, it orchestrates scenarios wherein the subjects to be assimilated are brought to the learners’ attention, fostering their interest, engendering desire, instilling conviction, prompting action, and ensuring satisfaction.

Characteristics of Teaching

1. The quintessential objective of teaching transcends mere dissemination of information; rather, it endeavors to effect transformative changes in behavior.

2. Teaching is deemed efficacious only when learning is effectively acquired by the learner.

3. Teaching, analogously, is akin to illuminating a lamp rather than merely f illing a receptacle.

4. Teaching is a deliberate, purposeful endeavor, not a haphazard undertaking.

5. Effective teaching is methodically executed according to predetermined designs rather than being subject to inadvertent deviations.

6. Proficient teaching necessitates meticulous planning encompassing content, procedures, methods, and techniques.

7. Superlative teaching fundamentally hinges upon adept communication, which, in turn, demands empathetic sharing and lucid exposition.

2.1 Introduction

Vegetables are grown and consumed throughout the country either on small or commercial scale. Various terms have been used for vegetable gardening, based on the objectives for which they are grown and can be classified into various types depending on the acreage cultivated, method of cultivation and purpose of vegetable production. Based upon these facts, vegetable cultivation is divided into the following types of gardens:

1. Home or Kitchen Gardening: The purpose of this gardening is to supply the varieties of vegetables for family use.

2. Commercial Vegetable Gardening: This is the method of growing vegetables on large scale to earn profit and is further divided into seven types:

Market gardening

Truck gardening

Vegetable gardening for processing

Vegetable forcing

Vegetable gardening for seed production

Floating gardening

Container gardening

10.1 Introduction

Cowpea is a typical warm season crop adapted to tropics. It is grown both for its tender pod and dry seed that is used as pulse for culinary purposes. The pods are rich in protein, vitamin B and minerals. It is also used as a fodder and green manure crop. On dry weight basis the cowpea seeds contain 23.4 % protein, 1.8 % fat and 60.3 % carbohydrates. Most probable progenitor of cowpea is Vigna unguiculata var mensensis. It is grown as a catch crop that is drought tolerant and sensitive to water logging. Being a legume crop, cow pea fits well in different inter-cropping systems. It is mainly of two types. Asparagus bean/yard long bean/snake bean (Vigna sesquipedalis) has 30-90 cm long fleshy pod with elongated kidney shaped 8-12 mm long seeds. It is late maturing variety. While catjang bean (Vigna catjang) has 7-13 cm long pods with 5-6 mm kidney shaped seeds. Pulse type of cowpea is Vigna uniguiculata var radiate and dual-purpose cowpea is Vigna uniguiculata var cylindrica.

Introduction to Competitive Analysis

Competitive analysis is a crucial component of strategic planning and business decision-making. It involves assessing and understanding the competitive landscape in which a company operates. Here are some key points to consider when introducing competitive analysis:

Competitive analysis is the process of evaluating and analyzing the strengths and weaknesses of current and potential competitors in a specific market or industry.

Purpose: The primary purpose of competitive analysis is to gain insights into competitors' strategies, capabilities, and market positioning. It assists businesses in pinpointing opportunities, mitigating risks, and formulating effective strategies to surpass their competitors.

Information sources: Competitive analysis relies on gathering information from various sources. These include publicly available data, industry reports, competitor websites, customer reviews, social media, and market research.

1. Corals are .........

 a) Animals b) Plants

 c) Diatoms d) Plankton

 2. Corals belongs to which phylum?

 a) Protozoa b) Echinodermata

 c) Cnidaria

 3. The corals consists of a sac-like structure called .........

 a) Septa b) Polyp

 c) Haloclone d) Nephris

 4. ......... build reefs found in shallow tropical seas.

 a) Hermatypic corals b) Ahermatypes corals

 c) Both a & b d) None of these

 5. ......... per cent of the corals are located in the Indian ocean,Red sea and Persian Gulf.

 a) 30% b) 5%

 c) 10% d) 70%

Introduction Livestock plays a vital role in rural economy. Apart from milk, which is a significant economic contributor, efficient use of livestock resources and byproducts like Manure/dung in biogas systems can help generate localised clean cooking energy for rural masses. At the same time, biogas spent slurry; a by-product of biogas plant is a potential source of major and micronutrients besides organic matter. Its proper utilisation after processing has a vast potential in meeting the nutrient requirement of the crops and thereby reducing use of chemical fertilizers besides providing sustenance to soil health. It is estimated that about 443.5 lakh tonnes of solid bio-slurry could be made available from dairy animals. This bio slurry can be processed to produce bio fertilizers which can meet the India’s requirement of NPK and micronutrients (Fe, Mn, Zn, Cu) by about 4.5% and 0.4% respectively. Vermicomposting is the best technique to convert livestock waste into a resource. In India livestock manure is managed basically in three ways:

A. Majority cases dung/manure excreted by livestock are removed and dumped into heaps nearby cattle sheds. The heaps remained for some time when they get converted into manures, which are spread subsequently in the fields as an organic matter.

B. Manure/dung is utilized for energy purpose in village level where the dung is made into small cakes and dried and later on used as a fuel for cooking purposes. This is a great wastage of organic matter which needs to be utilized or managed in other ways so that both the energy and manure can be obtained from the livestock waste.

C. This method of manure utilization is popularized both by central and state government through bio-gas plant where manure is used for the production of methane under anaerobic (lack of oxygen) conditions. The methane gas is used for cooking purpose as well as the slurry after methane extraction is used as farm manure. This management and technique reduce methane emission in environment utilized the methane for cooking purpose and at the same time the valuable waste is utilized as a farm manure.

Introduction

The term “Remote Sensing” was coined in 1950s by Ms. Evelyn Pruitt, a geographer with the U.S. Office of Naval Research, and the term is now commonly used to describe as the science and art of identifying, observing, and measuring an object on the earth surface, without having any direct contact. This process involves the detection and measurement of radiation of different wavelengths reflected or emitted from distant objects or materials through which they may be identified and categorized by class/type, substance, and spatial distribution (National Aeronautics and Space Administration—NASA). Remote sensing technology has been widely applied in various applications such as water resources, agriculture, geological studies, forestry, land use, resource exploration, etc.

Elements of Remote Sensing

The remote sensing process involves an interaction between the incident radiation and the targets of interest, exemplified by the use of imaging systems in which the following seven elements are involved; however, remote sensing also involves sensing of emitted energy and using non-imaging sensors

Introduction

Rainfall is one of the climatic variables that varies very highly spatially and temporally. Understanding this micro-level variation is a crucial indicator for planning future water requirements and preparing for management strategies. Numerous researchers have delved into the distribution, variability, and trends of rainfall across diverse spatial scales, ranging from global to regional and basin levels. Nair et al. (2014) analyzed the rainfall trend and seasonality index for Kerala state in India over the last 100 years. The rainfall trend was found to be decreasing significantly in almost all the regions of the state. Nischitha et al. (2013) provide insights into the spatial and temporal variability of daily monsoon rainfall in the Tunga and Bhadra River basins in Karnataka state. Paradkar et al. (2019) evaluated the pattern of weekly rainfall by using statistical parameters such as mean, standard deviation, skewness, and kurtosis for five stations in Pratapgarh district.

Geographical Information System (GIS) proved to be an effective tool in handling information and analyzing rainfall patterns, providing visual representations, and facilitating the decision-making process (Kadir et al. (2016) and Rao et al. (2017)). Anand et al. (2020) analyzed the long-term spatial and temporal trends of rainfall in the Lower Bhavani basin in Tamil Nadu, India using GIS and statistical methods. Earls et al. (2007) compared different interpolation methods such as Inverse Distance Weighting, Spline, and Kriging (ordinary and universal) to generate a 30 m representation of the rainfall data. Spatial interpolation techniques perform differently and their evaluation should not rely solely on quantitative assessment. Wu & Hung (2016) compared the performance of three spatial interpolation techniques i.e., IDW, kriging, and spline using quantitative assessment, 2D visualization, and 3D visualization. IDW and kriging performed similarly in terms of quantitative assessment, while spline performed worse. IDW and spline performed similarly in 2D visualization, while kriging showed different behavior. Kriging was observed to be an inexact interpolation in 3D visualization, while spline tended to create extreme values along the edges of the study area. Some studies discovered that the accuracy of Kriging in the study area is higher than that of IDW or Thiessen interpolations (Earls et al. 2007; Song et al. 2008; Chen et al. 2010). GIS applications have the capability to integrate spatial data and non-spatial data like rainfall and to visualize, model, and analyze how rainfall distribution varies across space and over time, providing insights into climate change, water resource management, agricultural planning, and disaster management. The present study aims to analyze annual rainfall data pertaining to Kerala state in the GIS environment.