This book explores the crucial transition from conventional to regenerative agriculture practices, focusing on the key drivers and indicators of soil health management. It provides knowledge to implement sustainable agricultural systems that prioritize soil health and foster the transition toward regenerative practices. This book delves into the principles and concepts of soil health, the challenges and limitations of conventional agriculture, the assessment of soil health through various indicators, and the importance of cover crops, crop rotation, conservation tillage, nutrient management, and water conservation practices. It also addresses the role of soil biodiversity, policy frameworks, and scaling up regenerative agriculture, providing practical strategies and case studies. The target audience for this book ranges from students and researchers to policymakers and large-scale farmers. Farmers will benefit from the practical insights and strategies presented, and policymakers and agricultural organizations can gain valuable knowledge on the drivers and policy frameworks supporting sustainable agriculture and soil health management. This book explores the crucial transition from conventional to regenerative agriculture practices, focusing on the key drivers and indicators of soil health management. It provides knowledge to implement sustainable agricultural systems that prioritize soil health and foster the transition toward regenerative practices. This book delves into the principles and concepts of soil health, the challenges and limitations of conventional agriculture, the assessment of soil health through various indicators, and the importance of cover crops, crop rotation, conservation tillage, nutrient management, and water conservation practices. It also addresses the role of soil biodiversity, policy frameworks, and scaling up regenerative agriculture, providing practical strategies and case studies. The target audience for this book ranges from students and researchers to policymakers and large-scale farmers. Farmers will benefit from the practical insights and strategies presented, and policymakers and agricultural organizations can gain valuable knowledge on the drivers and policy frameworks supporting sustainable agriculture and soil health management.

“Soil Health and Climate Change” presents a comprehensive overview of the concept of soil health, including the significance of key soil attributes and management of soil health in conventional and emerging land use systems in the context of climate change. Starting with a review of the physical, chemical and biological indicators of soil health and their significance for monitoring the impacts of climate change, this book then focuses on describing the role of soil structure, pH, organic matter, nitrogen, respiration and biota in sustaining the basic functions of soil ecosystems, and their anticipated responses to climate change. Further topics include the management of cropping, pastoral, and forestry systems, and rehabilitated mine sites, with a focus on mitigation of and adaptation to climate change impacts. Finally, the opportunities and potential risks of organic farming, biochar and bioenergy systems, and their ability to sustain and even enhance soil health, are discussed.

Soil Acidity and Plant Growth emerged from concerns over increasing acidification of soils under improved pastures over wide areas of southern Australia. While the book has its origin in the problems of acidification of Australian soils under pastures, the authors examine soil acidity within a much broader framework, making their views relevant to all agricultural and natural ecosystems on acid soils. The book's first two chapters discuss the chemistry of soil acidity and the ecological processes leading to it. This is followed by separate chapters on biological responses to soil acidity, covering mineralization of soil nitrogen, incidence of plant diseases, plant mycorrhizal associations, symbiotic nitrogen fixation in legumes, and genetic variability in plant response to toxicities. The remaining chapters focus on the correction of soil acidity problems by liming. These include studies on the rates of application and effectiveness of liming materials; and the development and use of computer modelling procedures to help researchers identify the effects and interactions of soil pH on component processes and to provide assistance to farmers in the management of long-term subterranean clover pastures.

Maintaining SH (SH) is critical for sustainable field crop production. The first step to understanding drivers is evaluating the effects of climate, soil edaphic properties, and management practices from an on-farm study across a regional scale on SH. Thus, I integrated on-farm research, farmer participatory approach, and statistical analysis to understand the SH drivers in the United States and Malawi. In summary, I assessed the SH indicators through two perspectives with various statistical models: 1) understand various viewpoints on SH assessment; and 2) integrating Bayesian statistical analysis, hierarchical cluster analysis, and principal component analysis to determine the drivers of SH and yield in Michigan, U.S. and the Central and Southern region of Malawi.SH is assessed through soil physical, chemical, and biological properties. However, researchers used various minimum laboratory SH dataset, resulting in the inconsistency in research studies. On-site SH evaluations recommended by extension educators were not always adopted by farmers. In this chapter, we compared the common indicators in laboratory analysis and on-farm evaluation through literature review and used a Likert Scale to understand farmers' views in Michigan. Maintaining SH (SH) is critical for sustainable field crop production. The first step to understanding drivers is evaluating the effects of climate, soil edaphic properties, and management practices from an on-farm study across a regional scale on SH. Thus, the farmer participatory approach and statistical analysis were integrated to understand the SH drivers in the United States and Malawi. In summary, SH indicators were assessed in this study through two perspectives with various statistical models: 1) understand various viewpoints on SH assessment; and 2) integrating Bayesian statistical analysis, hierarchical cluster analysis, and principal component analysis to determine the drivers of SH and yield in Michigan, U.S. and the Central and Southern region of Malawi.SH is assessed through soil physical, chemical, and biological properties. However, researchers used various minimum laboratory SH datasets, resulting in inconsistency in research studies. On-site SH evaluations recommended by extension educators were not always adopted by farmers. In Chapter 1, a Likert study was employed to understand farmers' views of common soil health indicators in Michigan. The results showed that the concept of SH assessment should be consistent and clear in research studies and extension education materials.Soil degradation is the most challenging yield-limiting factor in Sub-Saharan Africa. Without the information of current soil carbon status, farmers do not have sufficient information for deciding the appropriate management practice. Malawi's rain-fed maize system is a representation of the rain-fed maize cropping system in East Africa. In Chapter 2, soil analyses were conducted on 1108 focal plots in Central and Southern Malawi to better understand the current total and labile soil carbon status. Bayesian statistical approaches were employed to evaluate environmental and management drivers for soil total and labile carbon on Malawi smallholder fields. Overall, clay content and the vegetative cover are positive drivers for soil total and labile carbon.To better understand the SH across the regional scale in the Midwest United States, an on-farm study of 242 focal plots was conducted in Michigan. In Chapter 3, participatory monitoring and Bayesian linear regression models were used to investigate the impact of various drivers on SH indicators under a range of conditions in the state of Michigan. Location effects were observed, with each of the three regions differing in their climate, soil edaphic properties, and management practices. Overall, climate and soil edaphic properties were the dominant drivers of SH, management practices, which also play a critical role, especially in enhancing soil biological indicators.When evaluating SH, multivariate statistical analysis is generally used due to the inherent correlation among the variables. In Chapter 4, hierarchical cluster analysis and principal component analysis were adopted to evaluate the 1) interrelationship of various SH indicators; and 2) drivers of the variation across focal plots and local clusters. Besides the high correlated SH indicators, independent variables provide valuable information. The key determinant of SH indicators is geographical clusters. Farmers' management practices should be site-specific and goal-oriented considering the tradeoff between residual nitrogen and soybean yield.

Approaches to Soil Health Analysis A concise survey of soil health analysis and its various techniques and applications The maintenance of healthy soil resources provides the foundation for an array of global efforts and initiatives that affect humanity. Whether they are working to combat food shortages, conserve our ecosystems, or mitigate the impact of climate change, researchers and agriculturalists the world over must be able to correctly examine and understand the complex nature of this essential, fragile resource. These new volumes have been designed to meet this need, addressing the many dimensions of soil health analysis in chapters that are concise, accessible and applicable to the tasks at hand. Soil Health, Volume One: Approaches to Soil Health Analysis provides a well-rounded overview of the various methods and strategies available to analysists, and covers topics including: The history of soil health and its study Challenges and opportunities facing analysists Meta-data and its assessment Applications to forestry and urban land reclamation Future soil health monitoring and evaluation approaches Offering a far-reaching survey of this increasingly interdisciplinary field, this volume will be of great interest to all those working in agriculture, private sector businesses, non-governmental organizations (NGOs), academic-, state-, and federal-research projects, as well as state and federal soil conservation, water quality and other environmental programs.