Anandkumar Naorem – författare

Volume 03 highlights into the intricate world of soil salinity and alkalinity, addressing the challenges posed by salt-affected soils and the measures to remediate such stressed environments. Salt-affected soils, characterized by high levels of soluble salts, pose significant obstacles to agricultural productivity, ecosystem sustainability, and global food security. In this volume, we explore the criteria used to classify salt-affected soils, including electrical conductivity (EC), sodium adsorption ratio (SAR), and exchangeable sodium percentage (ESP). By understanding the indicators of soil salinity and alkalinity, readers gain insights into the extent and severity of soil stress and the potential impacts on soil quality and crop health. The importance of addressing soil salinity and alkalinity cannot be overstated, as these conditions can have far-reaching consequences for global food production. Saline soils can inhibit nutrient uptake by plants, reduce water availability, and induce physiological stress, leading to reduced crop yields and economic losses for farmers. Alkaline soils, characterized by high pH levels, can further exacerbate nutrient deficiencies and hinder plant growth, particularly for acid-sensitive crops. By examining the impacts of salt-affected soils on global food production, we gain a deeper appreciation for the urgency of addressing these soil stresses and promoting sustainable land management practices.In this volume, we also explore the measures available to remediate salt-affected soils and restore soil fertility and productivity. From leaching and drainage to soil amendments and crop selection, a range of strategies can be employed to mitigate the impacts of soil salinity and alkalinity and promote soil health and resilience. By integrating scientific knowledge with practical solutions, researchers, policymakers, and practitioners can develop tailored approaches to address salt-affected soils, fostering sustainable agriculture and food security for future generations.

Volume 01 delves deeply into the intricate world of soil microbiology and biology, shedding light on their profound impacts on soil fertility and resilience, especially in the face of climate change. Soil microbiology and biology play crucial roles in soil fertility by facilitating nutrient cycling, organic matter decomposition, and the formation of symbiotic relationships with plants. Microorganisms such as bacteria, fungi, protozoa, and nematodes are the unsung heroes of soil ecosystems, breaking down complex organic matter into simpler forms that plants can absorb, thus enriching the soil with essential nutrients. Moreover, soil organisms contribute to soil structure and stability, enhancing water retention and aeration, which are vital for plant growth and ecosystem health.However, the delicate balance of soil microbiology and biology is increasingly under threat due to climate change. Rising temperatures, altered precipitation patterns, and extreme weather events can disrupt soil ecosystems, affecting the abundance, diversity, and activity of soil organisms. These disruptions can lead to diminished soil fertility, reduced crop yields, and increased vulnerability to soil erosion and degradation. Understanding soil microbiology is therefore paramount in mitigating the impacts of climate change on soil fertility and ecosystem resilience. By studying the interactions between soil organisms and their environment, researchers can develop strategies to enhance soil health, restore degraded soils, and promote sustainable agricultural practices. Moreover, recognizing the vital role of soil microbiology highlights the importance of preserving soil biodiversity and fostering stewardship of this invaluable resource.In essence, soil is more than just dirt; it is a living, breathing ecosystem teeming with microbial life. Without the intricate web of living beings beneath our feet, soil would indeed be reduced to mere dirt. Volume 01 of this series discusses the significance of soil microbiology and biology in sustaining soil fertility, resilience, and ultimately, life on Earth.

Volume 04 uncovers the significance of soils subjected to waterlogging and submersion, particularly in the context of India. Submerged soils, also known as waterlogged soils or hydric soils, are those that experience prolonged periods of saturation or inundation with water. Found in wetlands, floodplains, rice paddies, and coastal areas, these soils play a critical role in regulating water flow, nutrient cycling, and biodiversity. Despite their importance, submerged soils are often understudied and underappreciated in soil science literature. In the Indian context, submerged soils hold particular significance due to the countrys diverse landscape and agricultural practices. Wetlands and floodplains are integral components of Indias ecosystem, providing essential services such as water purification, flood control, and habitat for wildlife. Moreover, rice paddies are a staple feature of Indian agriculture, supporting millions of livelihoods and contributing significantly to the countrys food security. The nutrient dynamics of submerged soils differ from those of well-drained soils, presenting unique challenges and opportunities for agricultural productivity. Waterlogged conditions can lead to anaerobic environments, affecting the availability and mobility of nutrients such as nitrogen, phosphorus, and iron. As a result, nutrient management strategies must be tailored to the specific needs and constraints of submerged soils, balancing the requirements of crop growth with environmental sustainability.Furthermore, submerged soils can be significant sources of greenhouse gas (GHG) emissions, particularly methane (CH4), due to anaerobic microbial processes such as methanogenesis. Methane emissions from submerged soils contribute to climate change and global warming, highlighting the importance of studying and mitigating GHG emissions from these ecosystems. In light of these considerations, studying submerged soils is essential for understanding their ecological functions, agricultural potential, and environmental impacts. By understanding the complexities of submerged soil ecosystems, we can develop sustainable land management practices that promote soil health, biodiversity conservation, and climate resilience.

Volume 05 provides a comprehensive exploration of the fundamental principles, properties, and dynamics of soil colloids and their pivotal role in soil chemistry and nutrient dynamics.Soil colloids, comprising clay minerals, organic matter, and iron and aluminium oxides, are minute particles with dimensions ranging from nanometres to micrometres. In this volume, we study the classification and characteristics of soil colloids, elucidating their surface properties, charge characteristics, and interactions with ions and water molecules.Understanding soil colloids is paramount for deciphering soil chemistry and nutrient dynamics, as these particles serve as the primary medium for ion exchange and nutrient retention in soils. Through a combination of theoretical frameworks, empirical models, and experimental evidence, we explore the mechanisms governing ion adsorption, desorption, and diffusion on soil colloids, shedding light on the factors influencing nutrient availability, plant uptake, and soil fertility. Moreover, this volume delves into the mathematical underpinnings of soil colloids, including the theories of electrostatics, surface chemistry, and surface complexation. By applying mathematical models and computational techniques, we unravel the complexities of soil colloid behavior, predicting their interactions with ions and organic molecules, and elucidating their role in soil biogeochemical processes.Furthermore, we explore advanced topics in soil colloids research, including theorems and mathematical-based concepts. By integrating theoretical insights with experimental evidence, we aim to advance our understanding of soil colloids and their implications for soil health, environmental sustainability, and ecosystem function.In essence, Volume 05 serves as a comprehensive resource for researchers, educators, and practitioners in soil science and related disciplines, providing insights into the complexities of soil colloids and ion exchange processes. Through rigorous analysis, empirical validation, and theoretical exploration, we aim to unravel the mysteries of soil colloids, empowering readers to unlock the potential of soils to support thriving ecosystems and sustainable agriculture.

Volume 02, dedicated to the Management of Soil Structure. In this volume, we will discuss on a comprehensive exploration of soil structure, laying the foundation for understanding its importance, classification, and the physics behind it. We begin by unravelling the basic definitions of soil structure and related terms, providing readers with a solid conceptual framework for further exploration. From aggregates and peds to soil horizons and profiles, we delve into the terminology that forms the backbone of soil science, ensuring clarity and coherence throughout our discussions. The importance of soil structure cannot be overstated. It serves as the physical foundation upon which healthy soil ecosystems thrive, influencing water retention, nutrient distribution, root penetration, and overall soil health. By understanding the role of soil structure in regulating these essential processes, we gain insights into the mechanisms driving soil fertility, biological activity, and ecosystem resilience. Classification of soil structure provides a systematic framework for characterizing and categorizing soil types based on their physical properties. From granular to blocky, platy to prismatic, soil structure classifications offer valuable insights into soil behaviour, management practices, and potential constraints. By familiarizing ourselves with these classifications, we can better assess soil quality, diagnose issues, and devise tailored management strategies to optimize soil health and productivity.Behind the intricate patterns of soil structure lies a fascinating realm of physics, where forces of cohesion, adhesion, and capillarity interact to shape soil particles into aggregates of varying sizes and shapes. By exploring the physics behind soil structure, we gain a deeper appreciation for the complexities of soil behaviour and the dynamic interplay between soil particles, water, and air. Indeed, the insights and knowledge shared within this volume serve as the foundation for countless research endeavours in soil health and management. Soil physical health presents unique challenges, as it is relatively difficult to manage and is influenced by a myriad of factors, including soil texture, compaction, moisture content, and environmental conditions. In many parts of the world, soil physical constraints pose significant barriers to agricultural productivity, ecosystem sustainability, and land use management. By addressing these constraints and enhancing soil physical health, we can unlock the potential of soils to support thriving ecosystems, sustainable agriculture, and resilient communities.

This contributed volume describes management practices based on interdisciplinary and convergence science approaches from different disciplines of agricultural science to enhance the resilience of dryland agriculture.