eChapters

INTRODUCTION
Over the past two decades climate change has evolved from a debate about whether the planet is really warming to an increased focus on how to mitigate and adapt to its impacts. After an extensive review of the available literature on evidence of climate change, the Working Group I to the Fourth Assessment Report of the IPCC, 2007 concluded that “the warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average temperature”. “The scientific evidence is now overwhelming; climate change presents very serious global risks, and it demands an urgent global response” (Stern 2007).

Abstract

Quality of water is affected by natural and man induced contamination to groundwater system. Area chosen for study has gained its own importance due to the location of two lignite mines and a Thermal power plant in operation. Extensive large scale pumping of water is done for lignite mining. The mine drainage and drainage from thermal power plant along with agricultural return flow from lignite charged waters increases the severity of problem. In order to achieve a panacea for the above-mentioned situation, the study has incorporated and integrated in all related factors to get a meaningful interpretation for groundwater quality and quantity management in and around Neyveli area. The frequent failure of monsoon has added to the existing problem of over exploitation. To attain a panacea for water chemistry groundwater samples were collected for four different seasons. Higher EC and TDS values are observed in Southeast and Southwest part of the study area. In Southwest monsoon and Summer seasons HCO₃Cl dominates the anions, with few representations for SO₄. In Northeast monsoon and Post monsoon season Na + K – Ca + Mg is the dominant. Thermodynamic, studies reveal that groundwater of the region are stable with Kaolinite stability field in all the silicate systems. Bicarbonates derived from silicate mineral weathering are noted in the NW, Northern and in the mining region. These regions are located in the NW and NE part of the study area. Comparison of water quality to standards shows that the water can be used for drinking and for irrigation purposes except in few locations.

Introduction

The increasing concern about the long-term productivity of agro ecosystems has emphasized the need to develop a management strategy that maintains and protects the soil resources. This is directly related to the maintenance of the level of soil organic matter and nitrogen status, which are the critical components of soil productivity. These parameters can change over time due to crop management practices such as cultivation, crop rotation, residue management or fertilization which, in turn, can influence the long-term sustainability of ecosystem. Application of chemical fertilizer is one of the most expensive inputs in agriculture. About 65% of the applied nitrogenous fertilizer is lost from the plant–soil system through gaseous emissions, runoff, erosion and leaching which causes greenhouse effects and nitrate pollution of surface and ground water (Rejesus and Hornbaker 1999). Similarly, P applied in soil is rapidly fixed and results in low P availability for plant production. In this context, the deployment of microbial biofertilizers promise increasing soil nutrient availability in integrated nutrient management system.

Introduction

Soil supports richest number and kinds of microorganisms interacting with each other and thus by modification or alteration in soil conditions greatly influence the microbial community and their activity in soil ecosystem. Soil physico-chemical and the biological factors interact to provide rapidly changing ecological niches and microbial components fluctuate in response to change in soil conditions. There are large evidences that agricultural practices often favour antagonistic microorganisms (Cook and Baker,1983; Yarham,1979) and therefore, biological control of plant pathogens could be possible through manipulation of soil condition. Soil organic matter also has a profound influence on microorganisms in soil, particularly those, including some pathogens, saprophytic and obligate plant parasites. Soil organic matter is distributed at discrete sites within the soil and determines to a great extent which parts of pore space are occupied. 

Introduction

Amidst the vast fields and verdant landscapes lies the heartbeat of nations -the farmers. Yet, despite their indispensable role in feeding the world, farmers often find themselves on the front lines of adversity, grappling with challenges ranging from volatile markets to climate uncertainties. Recognizing the pivotal importance of agriculture in fostering sustainable development, a plethora of initiatives and strategies have emerged to empower and support farmers worldwide.

DSM-5 and Diagnosis of Mental Health Issues
Mental health is a fundamental aspect of overall wellbeing and the accurate diagnosis of mental health issues is crucial for providing appropriate and effective treatment. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) is the latest reference guide used by mental health professionals to diagnose mental health conditions (Kapadia et al., 2020). The current edition, DSM- 5, builds on the goal of its predecessors of providing guidelines for diagnoses that can inform treatment and management decisions. The DSM-5 provides a comprehensive and standardized framework for the classification and diagnosis of mental disorders.
The DSM-5 represents a significant advancement in the field of psychiatry, as it incorporates a cross-cultural assessment of mental health issues and an updated classification system. (Petito et al., 2020) This detailed diagnostic criteria helps clinicians accurately identify and differentiate mental health conditions, enabling them to develop tailored treatment plans.

The growing adoption of Generative AI in academic institutions has moved the technology from experimental applications toward practical implementation across teaching, learning, research, student support, and university operations. This chapter examines real-world applications and institutional case studies that demonstrate how GenAI can be incorporated into higher education and other academic environments. Key applications include AI tutoring and learning support, curriculum and course development, assessment and feedback, research assistance, student-success services, and institutional operations. AI writing coaches can provide individualized guidance, while dialogic mathematics and coding assistants can support problem-solving without simply providing answers. Educators can use GenAI to develop learning objectives, case studies, examples, question banks, rubrics, multimedia scripts, synthetic datasets, and practice environments. The chapter also considers institutional experiences with AI policies, academic integrity, accessibility, privacy, and professional development. Successful implementations generally combine technological capabilities with human review, clear institutional guidelines, and AI literacy. Case studies demonstrate both the potential and limitations of GenAI, emphasizing that effective adoption requires contextual evaluation rather than technology-driven implementation alone. The chapter provides practical insights for institutions seeking evidence-based and responsible approaches to educational transformation through generative AI.

ABSTRACT

Eastern part of the Uttar Pradesh falls in mid-Gangetic plain commonly called as ‘Purvanchal’. It is divided into three ecozones : i) North eastern tarai, ii) Eastern Plains, and iii) Vindhyan. Most of the farmers of the region have subsistence agriculture with small land holding. Although total forest area is 10.69 per cent of the geographical area, the actual well stocked forests (medium and good forests) in the region are confined to 3.51%. Vindhyan zone indicates higher dependence for fire wood (35% of the total need) on natural forests. Cow dung is major source used as fuel in Eastern plains (65% of the fuel requirement). The cropping systems are different in rainfed and irrigated lands. Surveys of different parts of the eastern U. P. indicate that people have a progressive attitude towards agroforestry. However, due to land hunger most of the farmers develop homesteads. Agrihorticulture system is most popular system adopted by large and medium farmers in the region. Agrisilvihorticulture system is adopted by the farmers of Eastern plains and North eastern tarai zones. Agrisilviculture, Silvihorticulture, Agrisilvihorticulture and sivipastoral systems researched by us, are recommended for adoption by the farmers.

Nanotechnology epitomizes one of the most dynamic and transformative fields in modern science and technology. This multidisciplinary domain bridges chemistry, physics, biology, along with engineering, enabling the creation of materials and devices with extraordinary properties and applications. The book chapter reflects the research and patenting trends in nanotechnology. USA leading the global share for most patents granted followed by South Korea, Japan, China and Germany for the top five spots contributing more than 76% of all the granted patents by EPO & USPTO related to nanotechnology. Nanotechnological products in relation to sub-industrial areas of medicine, food, agriculture, cosmetics, environment, and renewable energies are also highlighted in chapter. 

6.1 Alternative Protein Sources

Introduction

The rapid expansion of aquaculture as a significant contributor to global food security has highlighted the need for sustainable feed and nutrition practices. Traditional aquaculture feeds rely heavily on fishmeal and fish oil, derived from wild-caught fish, which poses ecological and economic challenges. The overreliance on these marine resources can lead to overfishing, increased production costs, and environmental degradation. To address these challenges, the aquaculture industry is increasingly exploring alternative protein sources that are sustainable, cost-effective, and nutritionally adequate. This essay discusses various alternative protein sources, their benefits, and challenges in the context of sustainable aquaculture feed and nutrition.

Plant-Based Protein Sources

Plant-based proteins are among the most promising alternatives to fishmeal in aquaculture diets. These proteins are derived from crops such as soybeans, peas, and canola. They offer several advantages, including wide availability, cost-effectiveness, and relatively low environmental impact.

Introduction 
The demand for alternative energy sources is on the rise as a result of global apprehensions regarding the swift exhaustion of fossil fuels, escalating energy usage, and significant environmental challenges (Lijó et al. 2019). Microalgae are regarded as highly favorable raw materials for upcoming energy sources, thanks to their various advantages, including rapid growth rates, elevated lipid contents and resistance to a variation of pH, temperature, light intensity, and salinity (Goswami et al. 2022; Zhang et al. 2022; Wang et al. 2019; Das et al. 2011). As per a recent evaluation of the lipid production efficiency of microalgae biomass, numerous nations could derive their transport fuel (~30%) from microalgae biomass grown on non-agricultural areas (Moody et al. 2014). Apart from their higher lipid production efficiency in contrast to earthly raw materials, microalgae consist of lipids, polysaccharides, pigments, proteins, and nucleic acids, making them versatile raw materials for a range of finalized outcomes, including nutrients, pharmaceuticals, biofuels, and bioplastics (Tang et al. 2020; Kim et al. 2016; Moody et al. 2014; Sharma et al. 2011). Additionally, microalgae are appealing for their efficient sequestration of CO2 during photosynthetic growth (Vargas-Estrada et al. 2020). In contrast to landbased oilseeds, microalgae can be cultivated in freshwater and contaminated or saline locations, eliminating the requirement for substantial nitrogen fertilizer application (Sharma et al. 2022; Rashid et al. 2019; Lam and Lee 2012). The positive attributes of microalgae as raw materials have prompted substantial research endeavours aimed at the commercialization of microalgal biofuels. Regrettably, microalgal biorefineries continue to encounter various technological and economic challenges (Khoo et al. 2020). In essence, nanotechnology involves the invention, creation, and utilization of resources at the nanoscale. Precisely, nanomaterials engineering explores the synthesis and designing of artificial or adorned nanoparticles to drive technological progress and enable applications that would otherwise be impractical. Nanomaterials possess surface areas hundreds of times greater than their weights, significantly enhancing their physico-chemical attributes (Husen and Siddiqi 2014; López-Serrano et al. 2014). Currently, nanotechnology-driven developments, with diverse potential features, have emerged as a burgeoning trend in various industries, including drug delivery, food industry, catalysis, coatings, agriculture, bioremediation, cosmetics, and materials science (Malik et al. 2023). Nanoparticle engineering offers practical and potential solutions to address the problems that arise at different phases of the microalgal biorefinery procedure. For instance, diverse nanomaterials have been proposed as ways to enhance transformation efficacy and the quality of green diesel. The distinctive capabilities of nanoscience and nanomaterial engineering exert a substantial impact on the commercial feasibility of microalgae derived products, including bioactive compounds, oils, lipids, and biofuels (Kumar et al. 2020; Milano et al. 2016). Nanoparticles have the capacity to boost intracellular fatty acid synthesis and complete microalgal biomass, leading to substantial reductions in production expenses. The presence of nanomaterials enhances the efficiency and speed of the microalgae harvesting, and the recoverability and reusability of these materials contribute to improved production efficiency.

Mechanization of agriculture is essential for optimal utilization of vital inputs for crop production system such as soil, water, seed, fertilizer, pesticide and labour force leading to higher productivity and reduced cost of production for greater profitability. Thus with the support of mechanization, the agrarian sector as an enterprise needs to become sustainable and economically competitive which coincides with the objectives of the Integrated farming System concept. Mechanization also imparts capacity to the farmers to carry out farm operations with dignity, comfort and freedom from drudgery, making the farming agreeable vocation for educated rural youth as well. It helps the farmers to achieve timeliness and precisely meter and apply costly input for better efficacy and achieve higher productivity with reduced application of inputs. Small and marginal farmers now make use of high capacity agricultural machines on custom hire basis to enjoy the economic benefits. As such, the broad subject of agriculture can be understood as production agriculture, which takes care the field operations in the crop production system for higher productivity and post production agriculture, better known as post harvest technology which looks for reducing the loss of produce and value addition for economic gains. The IFS outlines the need of sustainability for farmers with limited resources of land, water and economy while mechanization aims at maximizing the profitability in agricultural system with a commercial attitude. Since the availability of labour force during peak hours of need and hike in wage very often creates hindrance in production and post production agriculture, mechanization can be the right answer to harness the benefits of IFS approach.

Commercialization is essential for agricultural development, which, amongst other things, entails mechanization of agriculture to reduce the cost of production and to increase the yield of crops. In some instances, agricultural commercialization may take place even without mechanization. However, due to the ever increasing agricultural labor scarcity in developing countries, an extensive scale agricultural commercialization may not be possible without mechanization.

The various farm operations involved in crop production system are land leveling, tillage for seed bed preparation, sowing and planting, weeding and interculture, spraying, harvesting and threshing. The mechanization of all these operation has been appreciated by the farmers which are discussed in the following paragraphs.

The communication which is the core of the Communication Mix plays an important role in promoting the product to the outside world and especially to the target market. In the marketing of rural products, application of latest, innovative and enhanced technologies is crucial for effective communication with urban consumers. This also helps in conveying the features of rural products. The adoption of the latest technologies ensures the economic well-being of the rural marketers by increasing the reach of the products and in creating awareness about the product. The technology helps in faster dissemination of the rural product information to the consumer.

The market research process is equally critical to rural marketing as to urban marketing because of two main reasons:

• The marketer has a limited understanding of the rural/urban consumer
• The marketer who is urban-oriented may need to find different ways to understand the decision variables in the urban market.

A. Viral Diseases of Shrimp

Shrimp farming which has grown to an industry in the last three decades is young compared to fish farming in the world. Yet the shrimp farming is facing serious problems with several types of viral diseases. Intensive culture in hatcheries and grow outs along with movement of stock across national and international borders of these animals with poor immune system has encouraged emergence of large number of viruses. During a short span of 30 years, 15 viruses of economic concern have been reported in shrimp culture of the Asia Pacific region. Shrimp viruses (Plate 8) can be broadly categorised into two groups:

1. Viruses infecting ectodermal (epidermis, hypodermal epithelium of fore and hindgut, nerve cord and nerve ganglia) and mesodermal (hematopoitic organs, antennal gland, gonads, lymphoid organ, connective tissue and striated muscle) origin tissues and replicating within the cytoplasm (YHV, TSV) and within the nucleus (IHHNV, WSSV), 2. viruses like MBV, HPV, BMNV, and BP infecting endodermal origin tissue and replicating within the nucleus of hepatopancreatic and mid gut epithelial cells. Lack of established shrimp cell line is the major drawback in study of shrimp viruses. Following are some of the common viruses causing diseases in shrimp hatcheries and grow out ponds in the Asia Pacific region.

The perennial nature of fruit crops coupled with high heterozygosity, protracted juvenility, and lack of information on inheritance patterns of important traits of economic significance is responsible for slow progress in breeding of fruit crops. Citrus is one of the most popular fruit crops cultivated in around 140 countries of the world mainly in the Asia-Pacific region. In Asia, citrus fruits are a major crop for the local people in meeting their nutritional requirements and livelihood. Citrus is cultivated as an indispensable cash crop both for domestic consumption and the export market. Recently, the citrus production has shown an increasing trend mainly attributed to its increased demand as a nutritious and healthy drink owing to the possession of many medicinal and antioxidant properties in its fruits.
The clonal selection has been used primarily as one of traditional breeding methods because bud sport mutations arise frequently in Citrus (Iwamasa et al., 1981; Uzun et al., 2004). This method of breeding generally offers many advantages to select clones suitable for their identified uses. Yield and fruit quality are the major targets of breeding and both these can be enhanced through clonal selection of natural mutants or seedlings. The major aim of the clonal selection studies is the selection of clones bearing regularly for many years, improved fruit appearance and tolerance to biotic and abiotic stresses. In general, identifying the elite clones, testing them under different climatic conditions, and freeing them from the virus and virus-like pathogens carried by the mother plants are major steps involved in clonal selection (Ulubelde et al., 1986) for the improvement of fruit crops.

Food prices have risen 6% in the last six months. But it is expected to rise further as expensive energy, squeezed supplies and volatile weather take a combined toll. The biggest factor pushing prices is the cost of producing and marketing crops. Several factors will make farming more expensive in the coming months. The first variable is weather. Preliminary forecasts by a few foreign and private Indian meteorologists say India could have a below-normal monsoon because a weather phenomenon called El Nino is warming the Pacific Ocean. El Nino usually affects monsoon winds headed for India. Forecasters say monsoon might arrive on time but could falter during August-September, especially in the north.

• Epidemiological definitions

 • List of tests for international trade

 • OIE listed diseases

 • Solutions and reagents

 • Age and body weight of animals

 • Rectal temperature of animals

 • Normal values of blood vascular system

 • Vaccination schedule

Abstract

Coastal aquifers are the sources of freshwater which are being over extracted due to increase in population, agriculture and industrial activities. This over exploitation has resulted in decline in groundwater level and intrusion of sea water into the coastal aquifers making it unfit for human utilities. An attempt has been made in the coastal tracts of Pondicherry region using Electrical resistivity imaging. The survey has been attempted in six locations spread thought the study area and the interpretation has been attempted by RES2DINV software. The profile length attempted was between 150 to 300 m with electrode spacings between 5 to 10 m. The apparent resistivity ranges between 0.1 to 1183 & ohm. Sea water intrusion was prominent along the northern parts of the study area and lower resistivity isolated in kirumambakkam has been interpreted as salinity due to the presence of clay minerals. In nallavadu saline intrusion has been identified at shallow depth.

Sustainable crop production depends upon the rational use of chemical fertilizers and pesticides along with organic manures for better soil health. Owing to the constant production of crops from the soil, the latter is being depleted gradually of its nitrogenous and other nutrients. An ordinary crop takes about 25 lb of nitrogen (N) from an acre. It is, therefore, necessary to replenish the soil with the elements, which are removed by the crops year after year. Moreover, in recent years increasing fertilizer costs, and concern for sustainable soil productivity and ecological stability in relation to use of chemical fertilizers, have emerged as issues of vital concern. Furthermore, heavy reliance on chemical fertilizers tends to favour economically those farmers with large hectarage. These considerations have led to a renewed interest in the biofertilizers and organic manures such as FYM, compost and green manures. Biofertilizers which are formulations of bacteria, blue green algae or fungi helps in sustainable agriculture production either by providing plants with fixed nitrogen, available P or by other plant growth promoting substances. Organic matter (OM) is the life of the soil because it contains all the essential elements required for plant growth.