eChapters

Introduction

Out of the total cultivated area of 142 million hectares (M ha) in India during 2011–12, 100.2 M ha was under cereals (the word cereal derives from Ceres, the name of the Roman goddess of harvest and agriculture) and 24.8 M ha under pulses (splitting seed), the staple food grains in the country (Economic Survey 2013). There is very little scope of bringing additional area under food grains; on the contrary this may decline in future due to the land needed for civil amenities and industrial purposes.

Introduction

The cereal cyst nematode, (Heterodera avenae Woll.) a causal organism of ‘molya’ disease in wheat and barley, since after its first report (by Wollenweber, 1924, Vasudeva, 1958 and Prasad et al., 1959), it has been timely reviewed about its spread and losses caused in the various parts of wheat and barley growing areas of the world. It has been reported to occur in Australia, Canada, Israel, South Africa, Japan, in most of the European countries, North America, India, Morocco, Tunisia, Pakistan, Libya, Turkey and Australia (Prasad et al., 1959, Smiley et al., 1994, Rumpen horst et al.,1996, Krall et al., 1999, Nicol, 2002 and Rao et al., 2002). Its economic importance has been assessed by mapping the yield losses caused in cereals i.e. ranged from 15-20% in Pakistan, 40-92% in Sauthi Arabia, 23-50% in Australia (Nicol, 2002) and 40-50% in India (Mathur 1969, Mathur et al., 1980, Handa et al., 1985, Mathur, et al., 1987).

SYNOPSIS

Nature produces plants with healing properties. Hundreds of phytochemicals and antioxidants have been identified in various food plants. Many plants or plant parts are eaten as food. There are several plant species which are cultivated for food, and many have several distinct cultivars. Seeds of plants are a good source of food for animals, including humans, because they contain the nutrients necessary for the plant’s initial growth, including many healthful fats, such as Omega fats. In fact, the majority of foods consumed by human beings are seed-based foods.

Introduction

India is the world’s second largest producer of rice, wheat and other cereals. The important cereals are-wheat, paddy, sorghum (Bajra), barley and maize etc. India is not only the largest producer of cereal as well as the largest exporter of cereal products in the world.

Foodgrain production (2019-20): 296 million tonnes

Scenario

Table: States producing maximum area and production of crops in India

Abstract

The strenuous field trekking, inaccessibility, perception of geology only within the visibility range of the eyes etc. have remained matters of major constraints in the past in field based geological mapping. The remote sensing technology not only eradicated these but also provided lot many newer vistas in the field of geology. In addition, the application of such unique technology has brought out a hierarchy of newer concepts in the field of geology. The paper narrates the newer knowledge gathered on the geology of South India in the post remote sensing Era.

Abstract

As the available surface water is too inadequate to fulfill the man’s requirements he was forced to locate newer groundwater reservoirs on one side and to control the fast depleting water table on the other side. As the ancient techniques have failed to give precise models on groundwater targeting, he was to invent and employ newer technologies. Under this scenario the recently invented spatial technology has emerged as a very powerful tool in groundwater targeting and management. The vistas and virtues of such spatial technology in groundwater management have been discussed in this overview paper by citing some case studies from Tamil Nadu, India.

Natural farming in India is increasingly being recognized not just for its ecological integrity but also for its potential to enhance farmer incomes through systematic certification, innovative marketing, and value-added processing. Together, these elements form a vital support framework for scaling natural farming as a sustainable livelihood model.
While natural farming is rooted in chemical-free traditional practices, certification mechanisms like the Participatory Guarantee System (PGS) and thirdparty organic certifications provide formal recognition. These certifications— backed by government agencies and NGOs—enhance credibility, assure consumers of product authenticity, and allow farmers to label their produce as
natural or organic. This certification enables access to niche, premium markets where consumers are willing to pay more for sustainable and safe food options.
Marketing remains a key challenge but also a promising frontier. Traditional supply chains often fail to acknowledge the ecological value of natural produce. Direct-to-consumer sales, farmers’ markets, and online platforms like Jaivik Kheti are bridging this gap, offering better price realization. Farmer Producer Organizations (FPOs) further strengthen the position of natural farmers by enabling bulk marketing, logistics management, and improved price negotiation.
Value addition transforms raw produce into market-ready goods such as  pickles, flours, oils, and herbal teas, significantly enhancing profitability. These products appeal to health-conscious consumers and often command premium prices. Many on-farm processing units are run by rural women’s self-help groups, thereby creating jobs and empowering local communities.

Biodynamic farming, a holistic approach to agriculture pioneered by Rudolf Steiner, integrates ecological principles, cosmic rhythms, and spiritual practices into farming methods. While it offers numerous environmental and ethical benefits, biodynamic farming also faces various challenges and criticisms. This article examines the key challenges and criticisms associated with biodynamic farming, including scientific skepticism, economic feasibility, practical implementation issues, and market acceptance. Through a detailed analysis of these aspects, the article aims to provide a comprehensive understanding of the limitations and contentious aspects of biodynamic farming, offering insights into potential areas for improvement and future research.

The present publication has highlighted the issues on different aspects of food sector expressed by very distinguished authors. The issues have been discussed and illustrated how we conceive food as an item, what and how much food is known to consumers, what are common food sources, the relationship between food and health, food and nutrition security programmes in different regions of the world and how do we perceive food and nutrition policy challenges?

During the last 50 years or so, the world has witnessed tremendous changes in terms of population exodus, accessibility to food, advancement in agricultural science and technology, increased food production, efforts in mitigating food and nutrition security, natural and human made disasters and developmental efforts in handling and containing national and global issues. Inspite of these efforts, the challenges which have cropped up are plenty and at the same time creating avenues of opportunities to address those challenges in the interest of humanity. The world is large, countries are many, agro- climatic regions vary significantly, socio-economic conditions are distinct and the national, regional and global issues vary greatly. For ease of presentation and convenience of illustration, common issues only will be dealt in this chapter. Keeping in view the theme of this book, the following topics/issues will be discussed which pose challenges for the living humanity and for future generation within next 50 years. The views are limited to developmental, planning and implementation processes only in order for governments and others to consider overcoming these challenges.

Definitions: Before starting the chapter, it is better to understand the basic definitions of the terms commonly used in this chapter.

Waste: Waste is any material or object which is discarded after its primary use by its holder. A holder means the person who produces and keeps the waste. 

Introduction

India has one of the world’s largest agricultural production areas of land. The net sown area is 140.1 million hectares, the net irrigated area is 49% of this, which is 68.4 million ha as per 2014–15 land-use statistics (Agriculture Research Data Book 2019). While the proportion of Indians employed in agriculture is decreasing, agriculture, along with its allied sectors such as livestock, forestry and fisheries, remains India’s primary source of income. As per the Lok Sabha Standing Committee on Agriculture (2019–20), agriculture and allied industries employed 54.6 percent of India’s total workforce. Approximately 70% of rural households still rely primarily on agriculture for a living. Agriculture and allied sectors’ share of the country’s Gross Value Added (the value of goods and services produced in an area, industry, or sector of an economy) has fallen from 18.2 percent in 2014-15 to 16.5 percent in 2019-20. As per current trends, 60% of India’s population (more than 10% of the world’s population) will face severe food shortages by 2050.

1. Introduction

India is a land of great diversities in terms of people, culture, languages and the style of living, among many other varied characteristics in the country. Based on the climatic, geographical, and cultural features, the country is broadly divided into six zones - the Northern, Southern, Eastern, Western zone, Central and the North-Eastern zone. Eastern zone comprises Bihar, Jharkhand, West Bengal, Odisha, Chhattisgarh, Assam and eastern UP (27districts of UP). This document exclusively focuses on the four states namely Bihar, Jharkhand, Odisha and West Bengal in the Eastern Zone with an attempt to look into the bottlenecks inhibiting the rural development of the zone.The f inancial institutions for agriculture in India was developed with the purpose of financing the needy farmers and providing them the facilities to increase the efficiency of agriculture. As a result, NABARD was formed in 1982. Thus, it was developed as an apex bank to help and support the agriculture section in India.This chapter seeks to evaluate the role of various financial institutions which play a major role in raising the standard of living of nearly one-fourth of India’s population in the eastern region of our vast country.

Dryland agriculture limits the crop growth to a part of the year due to lack of sufficient moisture (Peterson et al., 2006). According to the Fourth five-year plan of India, dry lands are defined as areas which receive rainfall ranging from 375 mm to 1125 mm and with very limited irrigation facilities. Dry lands are economically fragile regions which are highly vulnerable to environmental stress and shocks. Degraded soils with low water holding capacities along with multiple nutrient deficiencies and depleting ground water table contribute to low crop yields and further leading to land degradation. In a country like India, 44 per cent of the total food production is supported by dryland agriculture, thereby playing a critical role in nation’s food security. With the increasing population, food production has to be increased. A real need to second green revolution has been envisioned, which can be achieved by improving the dryland agriculture.

The vulnerability of agriculture and livelihoods in the Member Countries of the Centre on Integrated Rural Development for Asia and the Pacific (CIRDAP) poses a significant threat to achieving climate- resilient rural development. CIRDAP includes 15 member countries: Afghanistan, Bangladesh, Fiji, India, Indonesia, Iran, Laos, Malaysia, Myanmar, Nepal, Pakistan, Philippines, Sri Lanka, Thailand, and Vietnam [CIRDAP, 2023]. ]. In many Asian countries, agriculture is still practiced using traditional methods that do not incorporate climate data or modern techniques. This reliance leads to several challenges, such as reduced productivity and crop diversity, increased vulnerability to weather fluctuations, and hindrance in establishing resilient value chains. For example, in Iran's rural sector, challenges such as centralized planning, patriarchal norms, inefficient extension systems, and weak inter-agency coordination are uniquely defining features (CIRDAP, 2025). However, evidence shows these challenges are widespread across the region:

14.1 Introduction
As we reach the culmination of our exploration into meteorological data science, from foundational principles to specialized applications and emerging trends, it is imperative to pause and reflect on the broader context of this rapidly evolving field. The chapter, “Challenges, Ethics, and the Future of Meteorological Data Science,” shifts our focus from the “how” to the “why” and “what next,” addressing the significant hurdles, crucial ethical considerations, and transformative opportunities that lie ahead. The journey through meteorological data science has revealed a landscape of immense progress: unprecedented data volumes, sophisticated modeling capabilities, and increasingly accurate predictions. However, this progress is not without its complexities. We grapple with the inherent chaotic nature of
the atmosphere, the persistent uncertainties in our models, and the sheer computational demands of simulating Earth’s intricate systems. Beyond these scientific and technical challenges, the increasing societal reliance on meteorological data raises profound ethical questions concerning data privacy, equitable access to information, the responsible use of AI, and the potential for bias in algorithms. This chapter will delve into these multifaceted aspects. We will first examine the enduring scientific and technical challenges that continue to push the boundaries of research, from improving sub-seasonal to seasonal predictability to seamlessly integrating diverse data sources. Following this, we will confront the critical ethical considerations that arise when dealing with vast amounts of environmental data and its direct impact on human lives and livelihoods. This includes discussions on data ownership, algorithmic transparency, and the potential for exacerbating existing societal inequalities if not handled with care. Finally, we will cast our gaze forward, envisioning the future of meteorological data science. This forward-looking perspective will explore the potential for truly integrated Earth system models, the transformative impact of artificial intelligence, and the growing imperative for interdisciplinary collaboration to address the grand challenges of climate change and environmental sustainability. Ultimately, this chapter serves as a critical reflection, reminding us that while the technological advancements in meteorological data science are aweinspiring, their true value lies in their responsible and ethical application for the benefit of all. It is a call to continuous innovation, thoughtful leadership, and a commitment to leveraging the power of data for a more resilient and informed future.

SYNOPSIS

Inspite of the fact that governments in various food summits and conferences have made commitments on food and nutrition security, presently more than a billion people are suffering from hunger and malnutrition worldwide. The food and nutrition policies need to be revisited and updated to address both man-made food scarcities and natural disasters of present and future to mitigate hunger and malnutrition.

SYNOPSIS

With the change of time, and the progressive development in life-style, the menu of food has undergone significant changes in communities, countries, regions and worldwide. This is influenced by the travel, migration of the people, and enhancement of the socio-economic status among the masses.

Introduction

India is more an agrarian economy, wherein about 50 percent of people directly depend on agriculture for employment. Like other developing nations, however, this country is facing some of the challenges like food insecurity, agricultural backwardness and unsatisfied farming community. Though green revolution in 1970s had brought much relief in this direction, liberalized trade polices since mid 1990s created new and complex issues, especially for small and marginal farmers. Also, since recent years the contribution of agriculture to GDP is declining, indicating that there is growth is shifting away from agriculture to industrial and service sectors. The rural-urban migration, primarily due to the poor employment absorption capacity of our traditional agricultural system, lower productivity, changing life styles, etc. is increasing at alarming rate. In spite of all these, the disparity persists within the society and across the region. Such inequalities, as measured through income distribution, consumption pattern and spending of the income, pose a big challenge, as the gaps are widening with the passage of time. Inadequate purchasing power among the poorer communities leads to undernourishment, which in turn affects their productive capacity. Even though huge food grain stocks are distributed among the needy, considerable proportion of the population lack economic access to such food, and have to rely upon the cheap and insufficient food.