eChapters

Water is a critical input for agricultural production and plays an important role in food security. Irrigated agriculture represents 20% of the total cultivated land and contributes 40% of the total food produced worldwide. Irrigated agriculture is, on average, at least twice as productive per unit of land as rainfed agriculture, thereby allowing for more production intensification and crop diversification. India has 18% of world’s population, having 4% of the world’s fresh water, out of which 80% is used in agriculture. India receives an average of 4000 billion cubic meters of precipitation every year. However, only 48% of it is used in India’s surface and groundwater bodies. In India, more than 60% population is still dependent directly or indirectly on agriculture. Most of the available water (more than 90%) is used in agriculture. From 1951 to 1997, gross irrigated areas expanded fourfold from 23 million ha to over 90 million ha, and irrigation continues to be the largest water user. The water availability in India is going to be worse as the agriculture-important states like Punjab, Haryana, Tamil Nadu, and Rajasthan are facing a steady fall in underground water table, and per capita availability of water fall from 3450 cubic meter (1951) to 1250 cubic meter (1999).

Chemicals in the form of insecticides ,fungicides and herbicides are extensively used in large numbers in agricultural production. Commercial production of some crops would be impossible if chemicals are not used. Small quantities of chemical residues often remain in such crops and the harvested grains and other products. The residues of pesticides  have been observed in small quantities (ppm level) in soil, water, agricultural produce  and even in animal tissues and their products like meat and  milk. They finally reach the consumer, namely, man (and even animals). Even the environment  is  now-a-days polluted with pesticides and other chemicals harmful to the humans. In view of the importance and seriousness of the problem the residues need to be estimated in the food and non-food products to assess their safety. Analytical details of a few pesticide residue procedures are presented below. Specialized texts may be consulted for  more extensive information.

Chemical warfare involves using the toxic properties of chemical substances to kill, injure or incapacitate an enemy.

Chemical warfare is different from the use of conventional weapons or nuclear weapons because the destructive effects of chemical weapons are not primarily due to any explosive force. The offensive use of living organisms (such as anthrax) is considered to be biological warfare rather than chemical warfare; the use of nonliving toxic products produced by living organisms (e.g., toxins such as botulinum toxin, ricin, or saxitoxin) is considered chemical warfare under the provisions of the Chemical Weapons Convention. Under this Convention, any toxic chemical, regardless of its origin, is considered as a chemical weapon unless it is used for purposes that are not prohibited (an important legal definition, known as the General Purpose Criterion)

Walnuts (Juglans regia L.) are found in the northern parts of the country in temperate belts. They are grown in the length and breadth of the valley in Jammu and Kashmir and hilly areas of Jammu. The walnut is being cultivated in the state on 89,339 ha with an annual production of about 2,66,280 metric tonnes. In Jammu Division, walnut plantation is on 38,318 ha with an annual production of 92,227 metric tonnes. The walnut is very rich in proteins, fats and minerals and is a concerned source of energy.

Climate and Soil

Walnuts are found growing in all parts of the Himalayan region between the elevation of 1200 to 2100 m above mean sea level. Walnuts are sensitive to both low and high temperature. Climate should be free from frost in spring and from extreme heat in summer. They grow well in areas where rainfall is about 75 cm or more and is well distributed. Temperature of 29-32^oC near harvest time, results in well-filled kernels.

Walnuts do best in soils where roots can penetrate deep evenly. In addition to good top soil, sub-soil must be free of rock, impervious clay or layers of gravel. Most suitable soil is well drained silt loam with abundant organic matter. Alkaline soil and sandy soils should be avoided for walnut growing. A soil with 2-3 metres depth and pH range of 6-7 gives best results.

Introduction

Agroforestry is the intentional combination of agriculture and forestry technologies to create integrated, diverse, productive, profitable, and sustainable land-use systems (Rietveld 1995). It creates complex systems with impacts ranging from the site or practice level up to the landscape and beyond (Ellis, 2004). It is one of the most conspicuous land use systems that consists of annual and perennial plants, which are often integrated with livestock. It provides ecosystem services and reduces anthropological impacts on natural forests, arrests soil degradation, enhance soil fertility in many situations and improve farm resilience (Thangataa and Hildebrand 2012; Tewari et al. 2013). Agroforestry is a land management and farming system that are not only capable of fulfilling household needs but also maintaining and improving environmental quality. Itplays a vital role in achieving integrated rural and urban development. The changing climate has potential impacts on ecosystem goods and services by means of increased variability with greater risk of extreme weather events, such as prolonged drought, storms and floods (Lindner et al. 2010). Agroecosystem and forests are the ecosystems which are the most adversely affected by climate change by means of prevalence of pests, diseases, invasive species, species endangerment and high levels of food insecurity.

7.1    Drip Network
    
7.2    Performance of the Drip System
        
Questions and Problems
        
References

ABSTRACT

Hydrogeochemistry of a region is a reflection of hydrodynamic process, composition of lithology and physical constraints. The water chemistry is the resultant of all biogeochemical processes and reactions, which have acted on water from the moment it has condensed in atmosphere till the time it is discharged. A case study has been carried out in a varied lithological terrain with Archean, Alluvium and Tertiary rocks to unravel the hydrogeochemical process. A geochemical model relays the distribution of mineral species in the groundwater. Geochemical modeling WATEQ4F has been carried out for pre-monsoon and monsoon period of various litho units in Gadilam river basin, Tamilnadu to find out the disequilibrium indices of carbonate (calcite, dolomite, magnesite and aragonite) and sulfate minerals (anhydrite and gypsum). The result of the model reveals that carbonate minerals show the over saturation state in monsoon period and the Sulfate minerals exhibit under saturation state in both the seasons.

The eventual objective of promoting IDM is to empower its users to engage sustainable agricultural production with long term positive impacts on human being, poverty and environmental health.The impact of successful implementation of IDM approaches cannot be achieved if IDM is not strategically placed within national policies for agricultural production and protection. There are number of the national policies and related regulations that have direct impact on IDM adoption and scaling up in India.

Agricultural sciences stand at the forefront of human progress, addressing some of the world’s most pressing challenges - from ensuring global food security to mitigating the effects of climate change. This multidisciplinary field encompasses the study of crop production, animal husbandry, soil science, agrometeorology, biotechnology, and agricultural economics, all working collectively to improve farming systems and resource management. With the global population projected to surpass 9 billion by 2050, agricultural sciences hold the key to producing more food sustainably while minimizing the environmental footprint of agriculture. However, the effectiveness of agricultural sciences in meeting these challenges depends not only on the quality of research produced but also on the systems that govern how this research is evaluated, disseminated, and applied.
One of the most significant drivers of academic and professional success in agricultural sciences is the journal rating system. These systems serve as benchmarks for evaluating the quality and impact of scholarly publications, influencing funding decisions, academic promotions, and research collaborations. A Research Evaluation System is a structured framework or methodology used to assess and measure the quality, impact, and relevance of research activities, outputs, and outcomes. These systems are crucial in academia, industry, and research institutions to ensure that resources are used effectively and that research aligns with organizational or societal goals. The evaluation of performance in scientific research at any level - whether at the individual, institutional, research council or country level – is not easy. Traditionally, research evaluation at the individual and institutional levels has depended largely on peer opinion, but with the rapid growth of science over the last century and the availability of databases and scientometric techniques, quantitative indicators have gained importance. Yet, the methodologies underlying these rating systems are often opaque, biased, and narrowly focused on quantitative metrics such as citation counts and impact factors. Such limitations create barriers for researchers from underrepresented regions and disciplines, perpetuating global disparities in scientific research and its application. Both peer review and metrics are subject to flaws, more so in India because of the way they are used. Government agencies, funding bodies and academic and research institutions in India suffer from the impact factor and h-index syndrome. The uninformed use of indicators such as average and cumulative impact factors and the arbitrary criteria stipulated by some agencies

Plasmid is a double stranded, self replicating, circular extra chromosomal DNA of bacterium. It is used in recombinant DNA experiments to clone genes from other organisms and make large quantities of their DNA. Plasmid can be transferred between same species or between different species. The sizes of plasmids range from 1-1000 kbps. Plasmids are part of mobilomes (total of all mobile genetic elements in a genome) like transposons or prophages and are associated with conjugation.

Introduction

Limited feed supply and poor quality of the available feeds are the major constraints for optimal livestock and poultry productivity in all developing nations like India. Most of the regions in India are characterized by irregular rainfall and thus livestock have to survive on persistent shortage of feed resources of low nutritive value for most part of the year. The poultry industry is an important livestock sub-sector in India with a potential to solve the problem of malnutrition, unemployment and augmenting rural economy. However, high feed cost decreases animal production which contributes to lower animal protein availability for human consumption. This vicious cycle of low productivity and intake of animal protein has been maintained and sustained by the scarcity of feedstuff.

1. 1 Introduction, Origin and Taxonomy Barnyard millet (Echinochloa species) is one of the oldest domesticated small millet crops which can be grown in both warm and temperate regions of the world and it is widely cultivated in Asia. It is distributed predominantly in the Indian subcontinent, China, Japan, and Korea and also to some extent in Africa and United States. In India, this crop is mainly grown in Maharashtra, Orissa, Tamil Nadu, Madhya Pradesh, Bihar, Punjab, Gujarat and the hills of Uttarakhand (Kumar et al., 2000). It ranks fourth in terms of production amongst the small millets. Indian Barnyard millet (Echinochloa frumentacea) and Japanese Barnyard millet (Echinochloa esculenta) are the two important species of the barnyard millet. Barnyard millet is majorly grown for human consumption, though it is also grown for livestock feed and fodder (Sood et al., 2015).

Cowpathy

Panchgavya chikitsa is an age old system of medicine described in ancient Indian literature ‘Ayurveda’ and now it is known as ‘cowpathy’ means the therapy of human ailments through cow products. However, Cowpathy is different from Panchgavya as it also include cow cuddling, Backrub, Gau grass, Gauseva, and living with cow besides, Panchgavya products milk, curd, ghee, urine and dung. Since the cowpathy practice is to increase the aura of an individual, it prevents from many ailments and infections. In Ayurvedic system, the medicines are prepared either from plants or from animals besides the use of certain metals. The Ayurvedic medicines of animal origin are mainly prepared from indigenous cow products such as urine, dung, milk, curd and ghee. Medicinal use of cow urine has been in practice since time immemorial in India.

Introduction

Canine atopic dermatitis (CAD) is a chronic inflammatory skin disease marked by itching (pruritus), redness (erythema), and recurrent infections. While traditionally considered an immune-mediated condition, recent studies highlight the significant role of skin barrier dysfunction in its development. A key aspect of CAD is the compromised skin barrier, which increases permeability to allergens, irritants, and microorganisms, thereby worsening the disease. The skin barrier is a complex, dynamic structure essential for protecting dogs from environmental challenges. The stratum corneum—the outermost layer of the epidermis—serves as a crucial defense against environmental insults, allergens, and pathogens. In dogs with atopic dermatitis, this barrier often becomes impaired, leading to increased transepidermal water loss (TEWL), greater allergen penetration, and secondary infections. This dysfunction both results from and contributes to the condition, creating a self-perpetuating cycle of barrier disruption, inflammation, and immune dysregulation.

History in general reveals chronological account of important events, contribution of persons who significantly influenced the thinking of their era and the interpretations of the observed facts or phenomenon over the period of time. The progress in plant pathology leading to the major land mark in mycology, plant bacteriology, plant virology and plant disease control has been described in chronological order for easy and better understanding of the student in following sub-headings.
 

Abstract
In the contemporary digital era, the agriculture sector is making use of the revolutionary power of internet marketing. As technology develops, farmers and agricultural businesses are implementing digital tools and strategies to enhance their marketing campaigns. The wider digital revolution of India’s agriculture sector depends on digital marketing. Since it employs and supports a sizable section of the population, India’s agriculture sector is essential to the country’s economy. The marketing and sales of agricultural products have rapidly changed since the transformation of digital technologies. Managing the customer experience in digital marketing for agricultural products in India poses several challenges. This Chapter explores the importance of transformational technological advancements in the agriculture sector and how it is impacting customer preferences and the digital revolution in agricultural marketing.
Keywords: Agriculture Marketing, Customer Preference, Digital Transformation,  Agriculture Sector, Digital Marketing

1.    Basic Principles
    
2.    Scale and Proportion
    
3.    Balance
    
4.    Rhythm
    
5.    Simplicity
    
6.    Unity
    
7.    Transition
    
8.    Focal Point or Emphasis
    
9.    Elements
    
10.     Variety
    
11.     Grouping
    
12.     Mass
    
13.    Sequence
        
    Further Reading

ABSTRACT

The sources of fluoride in groundwater are minerals like fluorite, apatite, mica, amphiboles,cryolite and fluor.spar. The undue concentration of fluoride greater than 1 mg/l has befallen a major toxicological and geoenvironmental issue in India. Excess of fluoride in groundwater causes skeletal and dental fluorisis. The study area forms part of Salem district with records of endemic fluorisis. To decipher process and chemistry of fluoride, a total of 46 groundwater samples were collected from major litho units of the study area (Peninsular gneiss and Charnockite) and analyzed for fluoride using standard procedures for two seasons viz. pre and post monsoon. In pre-monsoon, maximum and minimum fluoride in Peninsular gneiss and charnockite were ranging from 2.85 to 0.4 mg/l and 4.02 to 0.37 mg/l respectively. The coresspnding figures in post monsoon ranges from 2.84 to 0.32 mg/l and 1.91to 0.37 mg/l respectively. Higher concentration was noted in charnockite folowed by peninsular gneiss in pre monsoon and the effect of dilution was well noted in post monsoon season. Statistical analysis undercovers the relationship of fluoride minerals with other ions. Modeling results represent the leaching of fluoride minerals and their variation along with seasons.

Abstract

This study was conducted at Directorate of Cashew Research (DCR) Puttur, D.K., Karnataka during 2007-12. In this study, a methodology was standardized to find the area under cashew, barren areas and other areas for expanding cashew cultivation with remote sensing. It was found that the images pertaining to the month of November was best for classifying cashew since the colour of cashew leaves changes during that period. Also, the LISS III images were found to be good for identifying cashew. It was not possible to differentiate between cashew seedling area and cashew graft area using LISS III or LISS IV images. A spatial database of soil moisture was prepared for the irrigation scheduling in cashew and a spatial database of major nutrients was prepared for the site specific nutrient management in cashew gardens. A spatial database of land slope and stream orders was prepared using GIS and suitable soil and water conservation interventions were suggested for the selected area.

Keywords: Cashew, GIS, remote sensing

9.1 Introduction

In the preceeding chapter, we have studied the estimation part of statistical decision (inference) infered about the parameters of the population on the basis of information available in the sample observations drawn from the parent population under study. In the present chapter we discuss the problems related with the tests of statistical hypothesis and its significance about the population parameters under study. For understanding of the subject matter considered in this chapter, very clearly and easily, one must be familier with the statistical terminologies used in the subject matter. Hence we discuss the various notable terminologies with some suitable examples in a simple way for better understanding.