eChapters

12.1 The nature of gully erosion

Gully erosion is spectacular and widespread, and so it is often used by conservationists as a characteristic symptom of erosion. As a result there is a danger of its importance being over-emphasized. Certainly it is most important as a source of sediment in streams, but in terms of damage to agricultural land or reduction of agricultural production, it is usually not very important for the simple reason that most land subject to severe gully erosion is of little agricultural significance. The really spectacular erosion so popular in non-technical reports shows large areas cut up by deep interconnecting gullies, but this situation is usually found in semi-arid climates unsuitable for any serious agriculture, or on soils which have such adverse chemical or physical properties that their potential production is very low. Added to this is the fact that gully control is always difficult and expensive, so the cost of reclamation usually exceeds the value of the land. Certainly in the sense of reducing the amount of eroded soil choking the dams and rivers it may be highly desirable to do something about gully erosion, but it is very much a case of prevention being better than cure. Limited resources in manpower, money and materials can usually be better employed in preventing future gullies than in curing existing ones.

The worldwide occurrence and recognition is well demonstrated in the variety of names: in English and American - gully, in Egypt - wadi, in South Africa - donga, in French-speaking lands - ravine, in India - nulla, in South America - carcava, or arroyo, and many others. The definition is the same in any case, a steep-sided eroding watercourse which is subject to intermittent flash floods. They are more common in semi-arid climates with infertile soils and sparse vegetation, but some spectacular examples are found in tropical forests in deep soils with dense vegetation.

Canopy management is central to achieving balanced vegetative growth, efficient light utilization, flowering, fruiting, and high-quality produce. This chapter explains the principles and objectives of training and pruning in horticultural crops. Different training systems are related to crop architecture, growth habit, planting density, and production objectives. Pruning techniques are discussed for regulating shoot growth, removing undesirable branches, improving air circulation, and maintaining productive canopy structure. Light interception and distribution within the canopy are also examined because photosynthetic efficiency strongly influences yield and fruit quality. Modern high-density orchards require precise canopy management to balance productivity, plant size, mechanization, and long-term orchard sustainability.

What is mitigation of GHGs emission? We must be clear about the answer of this fundamental question. In simple term, the mitigation of GHGs emission is the way or means by which the emission of those gases could be reduced. As we know from the previous chapters of this book that the GHGs emission could be occurred from natural as well as anthropogenic activities. Natural activities included volcanic eruptions, ocean current fluctuations, continental drifts which are responsible for emission of huge amount of CO₂ and other GHGs. The reduction of emissions from those natural activities is beyond our capabilities. However, the human induced emissions of GHGs emission could be reduced. We studied in previous chapters that fossil fuel burning, industrial and energy sector pollution, deforestation, land use change and agricultural could contribute to GHGs emission considerably. Mitigation techniques are different for each of those sectors that governed by lot of interrelated factors. In actual sense, the mitigation of GHGs emission should includes all the measures that can curtail the anthropogenic emission from all sectors. But that is out of the scope of this book. In this book, we specifically address the mitigation principles, options and efficiency of different techniques/ practices in agriculture only.

In that aspect, the mitigation of greenhouse gases emissions in agriculture is defined as “the means and ways by which emissions of GHGs could be reduced from agriculture”. The ways and means actually referred to the techniques and practices and their amalgamation in agricultural sector both in production, processing and consumption aspects. So, mitigation is not only a techniques or combination of techniques it is actually an integrated approach for reducing greenhouse gases emission from agricultural systems. Primarily, there are two complementary approaches for mitigation of GHGs emissions from agriculture. Those two approaches are (i) supply-side and (ii) demand- side options or pathways. The supply-side approaches includes scientific land- use-changes, improvement of crop management, better livestock management practices, enhancing carbon storage in biota, soil carbon sequestration, significant substitution of fossil fuel by bio-fuels and use of renewable energy in agriculture. On the other hand, demand side approaches, taken in to account of shifting in the dietary pattern from non-vegetarian to vegetarian, curtail down the food loss and waste, and reducing the supply-chains (Figure 6.1). We can see, most of the approaches in supply-side are technology driven, while, approaches in demand-side are socio-economical and or policy driven. In this chapter we would thoroughly discuss the principles of mitigation, options of mitigation, mitigation cum adaptation approaches to reduce GHGs emission and climate change and few strategies to cope up with the vagaries of climate change.

Since many years, there has been an extensive use of synthetic pesticides against which has caused pest resistance, resurgence, residues environmental problems and toxicity to non-target organisms. Therefore, attention is given towards the alternate methods which are ecologically, economically sustainable. Botanical pesticides that control insects by using plant oils and extracts have proven to be the most effective. As they have promising role in organic farming, they help in reduction of pest load and improve crop quality and thereby increase crop yield without disturbing the environment and helps in maintaining the balance of natural ecosystems. This book chapter, discuss about the active functional ingredients of each botanical pesticide and mode of action, its importance in organic farming, their commercial formulations, major insect pests suppressed or controlled, their challenges in usage in agriculture and horticulture and its future prospects.

1. Introduction

Synthetic pesticide use has caused pest resistance, environmental problems and toxicity to non-target organisms. It is essential to follow alternate methods because these synthetic pesticides have led to acute and chronic poisoning in farm workers, applicators, and even customers. Employing botanical pesticides, is the most effective way to replace the widespread use of synthetic pesticides, is one of the important alternative strategies. Among them, plant-based bio pesticides that control insects by using plant oils and extracts have proven to be the most effective. Botanicals being natural and non-toxic to humans, animals, and the environment, have a significant role in organic farming as they help in promoting plant growth, controlling pests and diseases, and enhancing soil health. The use of botanicals is an essential component of organic farming as it helps in maintaining the balance of natural ecosystems, improves crop quality, and increases yield without the negative impacts of synthetic chemicals. As the use of synthetic pesticides and fertilizers is prohibited in organic agriculture. Organic farmers rely on natural methods to protect their crops from pests, diseases, and weeds. The beneficial insects, crop rotation, and natural remedies such as neem oil or garlic sprays are used to protect the crops. The use of natural methods to manage pests and diseases promotes biodiversity, maintains soil health, and minimizes the environmental impact of farming. Thus, plant protection is crucial in organic farming to ensure sustainable and responsible agriculture practices.

Floriculture and landscape architecture combine plant production with aesthetics, environmental improvement, recreation, and urban development. This chapter introduces the production, management, post-harvest handling, and marketing of flowers and ornamental plants. It also explains principles of landscape design, including balance, rhythm, harmony, colour, texture, form, space, and focal points. Softscape and hardscape components are considered in the planning of gardens, parks, institutional landscapes, roadsides, and urban green spaces. The chapter highlights the increasing importance of floriculture and landscape plants for urban biodiversity, pollution reduction, temperature moderation, recreation, and human well-being. Modern applications include turf management, green infrastructure, indoor plants, and peri-urban floriculture.

Intercropping is growing two or more crops simultaneously on the same piece of land with a definite row pattern. The crops may or may not be sown or harvested at one time.

Advantages of intercropping

Intercropping provides yield advantages as compared to sole cropping. These are not by means of costly input but by the simple expedient of growing crops together.

1.It provides greater surety and stability of higher yield over different seasons.

2.It economizes the space and time of cultivating two or more component crops of comparable agronomic practices grown separately.

3.It helps to restore soil fertility when legumes are included as component crop.

4.It utilizes a greater total volume of both below and above ground environment.

5.It helps to avoid intra-crop competition and thus a higher number of crop plants can be grown per unit area.

6.It helps in better use of growth resources.

7.It also helps in better control of weeds pests and diseases.

8.It also controls erosion through providing continuous leaf cover over the ground surface.

9.It is the small farmers of limited means who is most likely to benefit.

Orchids are the royalty among flower crops. They exhibit an incredible range of diversity in size, shape and colour of flower. They are valued as cut flowers and potted plants and are the most pampered plants. Orchid flowers are famous for the long lasting characteristics and bewitching beauty. No other plant has probably acquired the status of orchids. They have always been considered as mysterious plants.

11.1 Introduction

Generally, except particular cases, the typical civil wastewater do not present substantial differences according to the town where they are produced, therefore the type and the sequence of water treatment are nearly the same.

Conversely, the industrial wastewater characteristics are extremely varying according to the type of activity. For example, the oil industry wastewater will contain high concentrations of oily substances and hydrocarbons, the galvanic industry will produce heavy metal polluted wastewater, a food industry will produce wastewater containing biodegradable substances and so on. Consequently also the whole cycle of treatment, being aimed at the removal of particular pollutants, will be different according to kind of industry. The individual treatments of a wastewater treatment plant can be classified in different ways. According to the functioning principle it is possible to distinguish biological, physical and chemical treatments.

Biological plants are more commonly used to treat domestic or combined domestic and industrial wastewater from a municipality. They use basically the same processes that would occur naturally in the receiving water, but give them a place to happen under controlled conditions, so that the cleansing reactions are completed before the water is discharged into the environment.

Physico-chemical plants are more often used to treat industrial wastewaters directly, because they often contain pollutants which cannot be removed efficiently by microorganisms— although industries that deal with biodegradable materials, such as food processing, dairies, breweries, and even paper, plastics and petrochemicals, may use biological treatment. And biological plants generally use some physical and chemical processes, too.

Organic farming in groundnut cultivation is gaining global recognition as an environmentally sustainable and socially responsible approach. Groundnut is a versatile crop with high nutritional value and economic importance. This chapter explores the principles and practices involved in organic groundnut farming. It focussed on soil management, organic fertilization, pest, disease and weed management without using synthetic chemicals. This approach minimizes impact on the environment and reduces the presence of pesticide residues in the final produce. Moreover, organic practices help maintain soil health, conserve biodiversity and reduce environmental pollution. Thus, farmers can produce high quality groundnuts and fetch higher price and profits.

1. Introduction

The groundnut (Arachis hypogaea L.) is known by different names such as monkey nut, goober, earth nut etc., and belongs to leguminosae family. It produces flowers above ground but the fruits/pods underground (Sanders, 2003). It can be grown successfully in tropical and sub-tropical regions of the world. Globally, groundnut covers 32.7 M ha with a production of 53.9 MT with a productivity of 1648 kg ha-1 (FAOSTAT, 2021). Among the developing countries, Egypt has the highest productivity of groundnut with 2.70 t ha-1 (Nautiyal, 2001). Globally, India ranks first in groundnut area (5.42 m-ha) and is the second largest producer in the world with 10.1 MT with a productivity of 1863 ha-1 in 2021-22 (agricoop.nic.in). India ranks second next to China (34%) with 19% of world groundnut production in 2021. Gujarat is the largest producer contributing 36% of the total production of groundnut followed by Rajasthan (17%) and Tamil Nadu (7.5%). Groundnut accounts for 18% area and 26.8% production of the total oilseeds in India (CARP, 2022).

ABSTRACT

Genomics is a relatively new scientific discipline, having DNA sequencing as its core technology. As technology has improved the cost and scale of genome characterization over sequencing’s 40-year history, the scope of investigation has commensurately broadened. Demand has never been greater for revolutionary technologies that deliver fast, inexpensive and accurate genome information. This challenge has catalyzed the development of next-generation sequencing (NGS) technology. Over the past few years, massively parallel DNA sequencing platforms have become widely available, reducing the cost of DNA sequencing by over two orders of magnitude, and democratizing the field by putting the sequencing capacity of a major genome center in the hands of individual investigators. These new technologies are rapidly evolving, and near-term challenges include the development of strong protocols for generating sequencing libraries, building effective new approaches to data-analysis, and often a rethinking of experimental design. Next-generation DNA sequencing has the potential to dramatically accelerate biological and biomedical research, by enabling the comprehensive analysis of genomes, transcriptomes and interactomes to become inexpensive, routine and widespread, rather than requiring significant production-scale efforts. This article explains the methods, advantages and disadvantages of methods and softwares of Next Generation Sequencing with its impact and applications on genomics and other related field of biology.

Abstract

Drying remained at the centre stage since the initiation of the food processing due to its promise to preserve agricultural products economically and add functionality to a food product unlike other thermal as well as non-thermal food processing operations. However, many existing drying techniques have their own limitations like nutrient loss, damage of the organoleptic quality, high cost etc. Therefore, research for better drying technologies is going on. Supercritical drying (SCD) is one such technology which utilizes higher dissolving power of super critical fluids (SCFs) to dry food products. The current chapter illustrates the mechanism of SCD as well as current state-of-art and promise of the drying technology. Also, some modelling approach of SCD has been included in the discussion to facilitate new designs and optimization of SCD for various food products.

DEFINITION OF VIRUS

Viruses are very small (submicroscopic) infectious particles (virions) composed of a protein coat and a nucleic acid core. They carry genetic information encoded in their nucleic acid, which typically specifies two or more proteins. Translation of the genome (to produce proteins) or transcription and replication (to produce more nucleic acid) takes place within the host cell and uses some of the host’s biochemical “machinery”. Viruses do not capture or store free energy and are not functionally active outside their host. They are therefore parasites (and usually pathogens) but are not usually regarded as genuine microorganisms.

Mathwas (1981) considers a virus as a set of one or more template molecules normally encased in a protective coat or coats of protein or lipoprotein, which is able to organize its own replication only within suitable host cells where its production is:

1. Dependent on hosts protein synthesizing machinery (ribosomes).
2. Organised from pools of required material rather than binary fission and
3. Located at sites which are not separated from the host cell contents by a lipoprotein bilayer membrane.

Bos (1983) defines virus as an infectious agent often causing disease, invisible with the light microscope (Sub-microscopic), small enough to pass through a bacterial filter, lacking a metabolism of its own and depending on a living host cell for multiplication. Viruses are small packages of host alien genetic information of one type. (RNA or DNA), either in one strand or in a few segment. Encapsulated together or separately and enclosed in a coat of one or more types of protein, some time with an extra coat (envelope) and some other constituents.

Appendix 1 : Syllabus (For the Degree of Bachelor Of Veterinary Science And Animal Husbandry (B.V.Sc. & A.H.)

Introduction

Agriculture has historically been the primary source of income in India. It has the potential to alleviate poverty, increase income, and enhances food security for 80% of both the world’s poor and people who reside in rural areas primarily work in agriculture. One of the most effective strategies to eradicate extreme poverty, increase shared prosperity, and feed an estimated 9.7 billion people by 2050 is agricultural development. Compared to other modes, the agro - based sector’s progress is two to four times more successful in enhancing the earnings of the poorest people (www.worldbank.org).

Nearly 5 billion hectares, or 38% of the world’s land surface, is used for agriculture. Around one of this is devoted for farming, and the remaining two thirds are pastures and meadows for grazing animals. Over 10% of cropland is assigned to permanent crops like cocoa plantations, oil palm plantations, and fruit tree orchards. Yet another 21% of land is primed for irrigation, a crucial agricultural land management technique.

The effectiveness of community mobilization efforts depends significantly on the quality of analysis and understanding that guides strategic planning and decision-making processes, requiring sophisticated tools and frameworks that can capture the complexity of community circumstances while providing actionable insights for collective action. The integration of systematic analysis tools with deep understanding of value systems creates powerful foundations for community mobilization that can navigate both technical challenges and cultural dynamics that influence success and sustainability of development initiatives. Analysis tools provide structured approaches to understanding community conditions, opportunities, and constraints while helping communities develop strategic perspectives that can inform effective action planning and resource allocation decisions. These tools transform complex information into accessible formats that can facilitate community dialogue and consensus-building while building local capacity

Ultrasonography is being routinely practiced in canine and feline medicine for the diagnosis of diseases of the organs and also to confirm pregnancy. Its routine use in ruminant medicine is mainly restricted to pregnancy diagnosis. Recently the potential of ultrasonography is also being explored in zoo and wild animals as well as in exotic pets. Information available in companion and other domestic animals cannot be applied blindly to zoo and wild animals.

In modern times, soil tillage has emerged as an integral part of a crop system. Soil tillage or soil surface management has been found important in alleviating soil related constraints encountered in crop production. An important effect of soil tillage on crop productivity is through its influence on soil processes, soil Soil Tillage 39 properties and crop growth. At the same time, soil tillage has its impact on the environment e.g. soil degradation, water quality, emission of green house gases from soil related processes etc.

The Cucurbitaceae family is characterized by long training viny stems. There is variation for flower size and colour among the species but all of them have similar general morphology. The species are open pollinated and self compatible. Most of them are either monoecious (eg. Cucurbita spp.) Or andromonoecious (e.g. common in melon). Other species show gynomonoecy, androgynomonoecy, androecy, gynoecy, hermaphrodite or dioecy. Chow-chow is the only member of the Cucurbitaceae that is viviparous, contains single seed and propagated by planting whole fruit. The Indian gene centre has rich diversity in genetic resources of ridgegourd (Luffa acutangula), bottlegourd (Lagenaria siceraria), bittergourd (Momordica charantia), ashgourd (Benincasa hispida), snakegourd (Trichosanthes anguina), pointed gourd- parval (Trichosanthes dioica), pumpkin (Cucurbita spp.) and roundgourd (Praecitrullus vulgaris). Cucurbits are of tremendous economic importance and are cultivated throughout the world from tropical to sub-temperate zones. China, Turkey, India and Iran are important cucurbit growing countries. In India, this diversity is concentrated in Indo-Gangatic plains, north eastern region, north western Himalayas, the Western and Eastern Ghats and sporadically in the tribal dominant belts of central India.  More diversity occurs in Cucurbita spp. in the north east as also for ashgourd, bottlegourd while for Luffa, it is more concentrated in the eastern peninsular tract.

Key facts
    
·    The Food and Agriculture Organization (FAO) defines food security as a ’situation that exists when all people, at all times, have physical, social and economic access to sufficient, safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life’. There are four dimensions of food security: Food Availability (availability of sufficient food for all people at all times, i.e. production); Food Accessibility (physical and economic access to food at all times, i.e. affordability), Food Utilization (access to food that is nutritious, safe and produced in environmentally sustainable ways, i.e. nutrients in food and food safety); and Food Stability (reliability of adequate food supply).
    
·    Agriculture is important for food security since it provides food for the people and is the primary source of livelihood for 36% of the world’s total workforce. In the heavily populated countries such as Asia and the Pacific, about 40% to 50%, and in sub-Saharan Africa, about two-thirds of the working population make their living from agriculture.
    
·    Agriculture, livestock and fisheries production are all sensitive to climate and are affected by its changes. Climate change will increase hunger and malnutrition, emergence of new pests and diseases and will threaten fishing and aquaculture industries.

1.1. IMPORTANCE OF FOOD MICROBIOLOGY

Food may be defined as substances that provide nutrients, which when eaten and absorbed by the body, maintain life and growth. Food is basically energy stored in plant and animal foods in chemical form. On consumption, the stored form gets converted to physiological energy. Food is the prime necessity of life. Man has exhibited much thought and foresight in cultivating a variety of grains, fruits, vegetables, nuts and oilseeds and in rearing birds and animals for use as food.

Of the three primary needs of an individual, food, clothing and shelter, ‘food’ occupies the most important place. The biodiversity of foods- cereals, millets, pulses, oilseeds, spices, fruits and vegetables is varied and high in India, where we have varied agro-climatic regions from Kashmir to Kanyakumari. All the fifteen major climates in the world exist in India. India is the second largest producer of food in the world. The impact of green revolution is remarkable in India with many fold increased food production in the last five decades. The full potential of Indian agriculture can not be realized unless India emerges as a major player in the World agriculture.

World population is set to go beyond nine billion by 2050 and demand for food is likely to increase further because of growing affluence and globalization. Food security is achieved when all people have physical and economic access to sufficient, safe and nutritious value added food. India is emerging as a food power in the international trade of foods. The food processing industry in India has been identified as one of thrust areas for the development of the country. It has emerged as a highly perspective sector with immense potential in food processing. The future of Indian food processing industries is bright, provided it improves its quality of products as per international standards.The quality of food processing refers to the adherence of physical, chemical, biological, nutritional and sensory parameters required to achieve the wholesomeness of a food product. Quality control has become an important aspect for food processing industry for both domestic and export markets.