Jordbrugsvidenskab

Phosphorus (P) stands second to nitrogen in terms of its essentiality as a plant macronutrient, as well as due to its involvement in almost all plant developmental stages, primary and secondary plant metabolisms, maintenance of membrane structures, and in the structural skeleton of major biomolecules. An optimum P-supply also helps plants combat abiotic stress impacts. Most P in soil remains unavailable for uptake by plants. P-containing fertilizers are being added to agricultural lands to sustain high yields. Only the least amount of the applied P (20%¿30%) is used by most cultivated plants, and the rest remains as legacy P (P surpluses), which eventually causes eutrophication. This book, Phosphorus in Soils and Plants, reviews P in soils and plants, P dynamics in the soil¿water¿sediment environment, the major roles of P in the photosynthetic dark phase-biochemical pathways, major approaches for the sustainable management of P in agriculture, main mechanisms underlying the role of P in the regulation of plant¿microbe interactions in the rhizosphere, literature on the role of microbial phosphate solubilization in management of soil and plant nutrients, and insights into P recovery through waste transformation. This volume is an important resource for plant biologists involved in teaching or research who wish to advance their knowledge of P in soils and plants.

Sandy soils cover approximately 900 million ha worldwide, and there are extensive areas of sandy soils under cultivation. Most sandy soils have high water permeability, low water-holding capacity, low ability to retain and exchange nutrients, weakly developed soil structure and they may be prone to erosion by wind. As irrigation is required for obtaining good crop yields, there is a risk of substantial leaching of nutrients and pesticides, and ground water depletion. Due to global pressure on land resources, marginal soils such as sandy soils are taken into production or cultivated more intensely. Sandy soils ¿ as a group of soils with specific characteristics and ecological limitations ¿ have received limited research attention. This books presents the main papers from the Global Conference on Sandy Soils which was held in June 2023 in Madison, USA. This book focuses on novel and exciting aspects of research on sandy soils which is presented into three sections: Distributionand Assessment, Soil Carbon and Soil Health, and Water and the Environment. It presents a global glimpse on what recent progress has been in the study of sandy soil and their properties and management.

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

The book is designed to serve as a textbook for graduate and undergraduate courses on soil and water conservation engineering for students of agricultural engineering, civil engineering, environmental engineering and related disciplines. The book presents the basics of soil and water erosion, and describes the measures to control erosion, focusing on structures to prevent and control erosion. The chapters dedicated to erosion control structures provide a detailed view of each structural construction, covering the function, design and elements of each type of structure. Some common type of structures covered in the book are terrace, bunds, vegetated waterways, and gully control structures, including spillways. The book also covers wind erosion and control structures to prevent wind erosion. Each chapter includes pedagogical elements such as examples, practice questions, and multiple-choice-type questions to improve understanding and aid in self-study. Besides serving as a textbook university coursework, the book can also serve as a supplementary or primary text for professional development courses for practicing engineers engaged in soil and water conservation or watershed management. The book will also serve as a reference for professionals, environmental consultants, and policy makers engaged in soil and water conservation related fields.

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

This book is based on the papers accepted for presentation during the 3rd Springer Conference of the Arabian Journal of Geosciences (CAJG-3). The book is of interest to all researchers in the fields of geomorphology, sedimentology, and geochemistry. Papers in the field of geomorphology deal with topics related to fault slip and incision rates, soil science, landslides and debris flows, coastal processes, and geoarcheology and geoheritage. Papers in the field of sedimentology cover research studies in stratigraphy and environmental, tectonic, and diagenetic processes, together with studies focusing on the evolutionary, biostratigraphic, and paleo-environmental significance of paleontology. This section also contains papers on marine geosciences, from molecular proxies related to climate to geophysical surveys. The third set of papers focuses on studies related to geochemistry that are focused on sedimentary geochemistry and mineralogical characterization, magmatic and metamorphic processes and products, and the origin and exploration of mineral deposits. This book resumes the current situation related to the abovementioned topics mainly in the Mediterranean realm and its surroundings. The book is of interest to all researchers, practitioners, and students in the fields of geomorphology, sedimentology, and geochemistry.

Soil erosion is a global environmental challenge with profound consequences for land, water, and ecosystems. This book, Soil Erosion - Risk Modelling and Management, takes you on a comprehensive exploration of the intricate science and practical strategies for understanding, predicting, and addressing soil erosion. Inside the pages of this volume, yoüll find a wealth of unique insights, innovative methodologies, and illuminating case studies from diverse regions around the world. Whether yoüre a student, researcher, or practitioner, this book is an essential resource for gaining a deep understanding of soil erosion and discovering effective solutions to this critical environmental issue. The book delves into the intricate science of soil erosion, providing readers with a solid foundation in the principles and processes involved. It helps readers grasp the underlying causes and mechanisms of erosion, making it an invaluable resource for students and researchers in environmental science and related fields. The book is a vital resource that addresses one of the most pressing environmental challenges of our time. It combines scientific insights with practical solutions, making it an essential tool for anyone seeking to understand, address, and combat soil erosion¿s far-reaching impacts on our planet¿s health and well-being.

This book covers cadmium contamination of soil and plants, its sources, acute and long-term impacts on the environment and human health, and overall challenges posed by the global poisoning issue. Cadmium is among the elements that have been most broadly used by man over time, which has led to extensive pollution of surface soils, mainly associated with the mining and smelting of the metal and the addition of organic cadmium compounds to petrol. The release of cadmium into the atmosphere from various high-temperature processes has also led to surface contamination on a regional and even global scale. Cadmium is particularly firmly bound to humic matter in organic-rich soil and to iron oxides in mineral soil and is rather immobile in the soil unless present at very high concentrations. Plants grown on cadmium-rich soils incorporate cadmium, thus increasing the concentration of cadmium in crop plants. Cadmium thus enters the food chain through the consumption of plant material, whichposes important health risks to humans and animals. In this book, readers will find out about the latest mitigation strategies, including a multi-disciplinary approach to address cadmium contamination. Recent methods in cadmium detoxification, speciation, and molecular mechanisms are included, and the book offers the knowledge required for efficient risk assessment, prevention, and countermeasure. Divided into 3 parts, this book brings together expert contributions on cadmium toxicity. In the first part, readers will find out about the different sources and distribution of cadmium in soil and plant ecosystems. The second part of the book outlines the health risks linked to cadmium toxicity, and in the final part, readers will discover sustainable cadmium toxicity mitigation strategies and potential applications of recent biological technology in providing solutions. This book is a valuable resource for students, academics, researchers, and environmental professionalsdoing fieldwork on cadmium contamination throughout the world.

There are an estimated 500 million smallholder farmers across the world, of which a suggested 60-80% are women. Despite this overwhelming majority, women smallholders remain largely unsupported and their contribution to agriculture is often devalued because of their sex.Women and smallholder farming: Addressing global inequities in agriculture provides a comprehensive overview of the main obstacles and challenges women smallholders continue to face, such as restricted access to markets and education, as well as a lack of control over assets and property rights. The book also assesses the impact of sociocultural factors on women smallholder farmers in different regions around the world, including Africa, Asia, Latin America and the Middle East. In highlighting these issues, the book considers how key stakeholders across the agri-food supply chain can support, empower and sufficiently compensate women smallholder farmers for their contribution to agriculture.Edited by two internationally-renowned experts on gender and agriculture, the book will be a standard reference for university and other researchers studying smallholder farming systems in departments of agricultural science, gender studies, international development, politics and development economics, as well as government and non-governmental organisations (NGOs) involved in development programmes focussing on women smallholders.Dr Carolyn Sachs is Professor Emerita of Rural Sociology at The Pennsylvania State University, USA. She serves on an expert panel to the United Nations Programme on Gender, Water and Sanitation and is involved in several extension and outreach programmes, including the Pennsylvania Women's Agricultural Network (PAWAgN), in which she provides agricultural, entrepreneurship and leadership training. Emerita Professor Sachs has held previous positions as Visiting Professor at Charles Sturt University, Australia and Visiting Professor at the United Nations Food and Agricultural Organization, Rome, Italy. She has published widely on gender and agriculture, contributing books, chapters and journal articles, and in 2020, she co-edited the Routledge Handbook of Gender and Agriculture with Dr Paige Castellanos and other notable researchers.Dr Paige Castellanos is Senior Manager of Gender Justice and Inclusion at Oxfam America, USA. Before moving into her new role in 2022, Dr Castellanos was previously Director for the Gender Equity through Agriculture Research and Education (GEARE) Initiative at The Pennsylvania State University, USA. From 2016-2019, Dr Castellanos acted as Project Manager for the Women in Agriculture Network (WAgN): Honduras - a project funded by the United States Agency for International Development (USAID) to improve women's participation in the horticulture value chain in Honduras. She has published widely on gender, empowerment and agriculture and co-edited the Routledge Handbook of Gender and Agriculture alongside Emerita Professor Carolyn Sachs and other notable researchers in 2020.

Soil, the foundation of life, is an essential component of agricultural productivity. Healthy soil not only provides the nutrients that crops need to grow, but also filters clean water, purifies air, and stores carbon. Unfortunately, many factors are threatening soil health, leading to declines in crop yields, environmental degradation, and food security risks.What is Soil Health?Soil health can be defined as the ability of soil to function as a living ecosystem. It is a balanced combination of biological, chemical, and physical properties that are essential to supporting plants and animals, maintaining or improving water and air quality, and promoting the health of plants and animals.Healthy soil has the following characteristics:· Physical properties: Good structure, water holding capacity, and aeration· Chemical properties: Balanced levels of essential nutrients, neutral pH, and low salinity· Biological properties: Diverse and abundant soil organisms, high organic matter, and carbon storageHow Does Soil Health Affect Crop Production?Healthy soil is essential for high crop yields. It provides plants with the nutrients they need to grow strong and healthy. Healthy soil also helps to improve water infiltration and retention, which can help to reduce drought stress and improve crop resilience to climate change. Additionally, healthy soil supports a diverse population of soil organisms that help to break down organic matter and release nutrients to plants.Research has shown that healthy soil can lead to significant increases in crop yields. For example, one study found that a 10% increase in soil organic matter can lead to a 20% increase in crop yields.

This book focuses on case studies from Bangladesh, Cambodia, India, Indonesia, Japan, Thailand and the USA in various ground improvement projects. It highlights new applications and trends in ground improvement geo-system including recycling, geo-environmental consideration and preservation of world cultural heritage. The contents will be useful for researchers and engineers to understand how the principles of ground improvement methods are executed in the site, basis of selection of a particular ground improvement technique in a project, cost-benefits of such methods, etc. This volume will also be a useful guide for beginners and intermediate-level practitioners dealing with geotechnical construction projects or who have interest in the development and practical application of ground improvement techniques. Engineers and researchers will find it helpful in developing, advancing and applying their techniques in the field.

This book takes you on a sensory exploration, immersing you in the lush fields of lavender, where vibrant hues and intoxicating scents dance in harmony. Discover the secrets to cultivating this magnificent herb, from choosing the perfect lavender varieties to nurturing seedlings, and learn the art of harnessing nature's bounty to create exquisite lavender products. Delve into the chapters that unravel the intricacies of organic farming practices, innovative techniques, and sustainable approaches that embrace the future of lavender cultivation. Written with passion and expertise, this book unveils the latest research, cutting-edge innovations, and emerging trends in lavender farming. Immerse yourself in the vivid descriptions of lavender's healing properties, culinary delights, and its versatility in crafting luxurious cosmetics and skincare products. Whether you are an aspiring lavender farmer, a nature enthusiast, or a lavender lover seeking to deepen your understanding of this enchanting plant, this offers a captivating blend of practical knowledge, inspiring stories, and breathtaking visuals that will transport you to the serene world of lavender farming. Unleash your senses, cultivate your passion, and unlock the secrets to a flourishing lavender farm as you journey through the pages of this captivating book. The fragrance of lavender awaits, inviting you to step into a realm where nature's beauty and abundance intertwine in a symphony of colors, scents, and endless possibilities.

This book explains the lifecycle of earthworms, biological features, multiplication of worms, species of earthworms that are suitable for vermicomposting, different sources of vermicompost, nutrient recovery and different procedures for making of vermicompost and importance of application of vermicompost in cereal, fruit and vegetable crops.The tremendous increase in population, urbanization, industrialization and agricultural production results in accumulation quantities of solid wastes. This has created serious problem in the environment. In order to dispose this waste safely it should be converted effectively. This is achieved by bio-composting and vermicomposting of farm, urban and agro-industrial waste. It is being increasing realized that composting is an environment friendly process, convert wide variety of wastes into valuable agricultural inputs. Compost is excellent source of humus and plant nutrients, on application of which improve soil biophysical properties and organic matter status of the soil. India generates about 350 million tonnes of agricultural waste every year. Agricultural wastes include crop residues, weeds, leaf litter, sawdust, forest waste, and livestock waste. Under appropriate conditions, worms eat agricultural waste and reduce the volume by 40 to 60%. Vermicompost produced by the activity of earthworms is rich in macro and micro-nutrients, vitamins, growth hormones, enzymes such as proteases, amylases, lipase, cellulase and chitinase and immobilized microflora.This book will assist farmers, students and scholars to guide them about lifecycle of earthworms, biological features, multiplication of worms, species of earthworms that are suitable for vermicomposting and different procedures for making of vermicompost. This book will also benefit students of agriculture at graduate and post graduate level as students have a designated course on vermicomposting.

The advent of X-ray Computed Tomography (CT) as a tool for the soil sciences almost 40 years ago has revolutionised the field. Soil is the fragile, thin layer of material that exists above earth's geological substrates upon which so much of life on earth depends. However a major limitation to our understanding of how soils behave and function is due to its complex, opaque structure that hinders our ability to assess its porous architecture without disturbance. X-ray imagery has facilitated the ability to truly observe soil as it exists in three dimensions and across contrasting spatial and temporal scales in the field in an undisturbed fashion. This book gives a comprehensive overview of the "e;state of the art"e; in a variety of application areas where this type of imaging is used, including soil water physics and hydrology, agronomic management of soils, and soil-plant-microbe interactions. It provides the necessary details for entry level readers in the crucial areas of sample preparation, scanner optimisation and image processing and analysis. Drawing on experts across the globe, from both academia and industry, the book covers the necessary "e;dos and don'ts"e;, but also offers insights into the future of both technology and science. The wider application of the book is provided by dedicated chapters on how the data from such imagery can be incorporated into models and how the technology can be interfaced with other relevant technical applications. The book ends with a future outlook from the four editors, each of whom has over 20 years of experience in the application of X-ray CT to soil science.

This book provides insights into recent developments in the use of mulching in agroecosystems with emphasis on the major pros and cons. Increase in human population, climatic changes and agricultural intensification have put enormous pressure on soil and water resources. As a result, we are confronted with challenges to enhance nutrient and water use efficiencies and conserve soil organic matter without compromising crop yields and food security. Increasing the soil organic matter (SOM) via residue return increased nutrient availability and soil physical and biological properties. Management practices, such as straw mulching or incorporation, have significant effects on soil health. Straw addition also increases functionality related to carbon and N metabolism via increasing the microbes and thus greatly contributes to CO2 and N2O emissions. However, the co-use of organic and inorganic fertilizer reduces the N2O emission without compromising crop yield. Mulching has long been advocated to conserve soil moisture and increase the efficiency of macro- and micro-nutrients by improving soil physical, chemical, and biological properties. These effects of mulch are translated into better crop yields while improving soil health and quality in the long run. Therefore, the use of mulching techniques is on the rise in organic as well as conventional agriculture. The book is of great interest for researchers, academics, agriculture extensionists, soil and plant scientist, fertilizer industry, farmers, agro-industrial workers, farm managers, NGOs, and climate and civil society activists.

This book illustrates the main modern mineralogical analytical procedures that can be applied for forensic purposes on various typologies of materials and substances and has both theoretical and practical approach. Moreover, it focuses on all those challenges that can arise with forensic analysis, such as the choice of the most proper mineralogical techniques as a function of the material and its quantity, destructive and non-destructive analyses, sampling procedures, mineralogical analysis of micro-traces, correct preparation of the samples, correct calibration and analytical conditions of the laboratory instrumentation. Numerous case studies on criminal offenses against persons, environment and cultural heritage are illustrated.

This work focuses on the potential impact of climate change on soil erosion in a monsoon-dominated sub-tropical region. Water-induced soil erosion due to extreme rainfall during the monsoon period is a major problem worldwide, from different environmental and socio-economic perspectives. This study region covered (South Bengal) is one of the fertile agricultural belts that produces a good amount of produce and contributes to the country's GDP. However, the rate of agricultural output has decreased rapidly in recent times due to a decline in soil fertility.The monsoon-dominated sub-tropical region has unique characteristics in terms of seasonal temperature fluctuations and the availability of rainfall events. The sub-tropical region is densely populated, with the majority of the population relying on rain-fed agricultural production systems. The declining rate of agricultural production has also established that soil fertility is declining and soil erosion is increasing. Numerous studies show that soil erosion is the major cause of the region's rapidly increasing trend of land degradation. A homeostatic mechanism cannot replace soil erosion, and a gap arises between soil erosion and regolith formation. Extreme changes in land use and land cover, population growth and the lacking support for traditional agricultural practices and management practices can accelerate the rate of soil erosion and its associated reservoir sedimentation in most countries of the tropical and sub-tropical environment. Quantitative information with maximum possible accuracy through validation regarding soil loss can be an essential part of the appropriate and sustainable soil and water conservation planning. The precise aspects of modern day management strategies are soil erosion susceptibility mapping using empirical and semi-empirical models in a GIS platform or the use of probability statistics.The main objective of this work is to propose the most suitable development strategies considering the amount of soil erosion for the present and future periods. Extensive field research has been done to identify the support practice factor that the local stakeholders adopt in this region. 

This Book covers different areas of soil characteristics and forest research. Importance is given on enabling the reader to understand the concepts and recent approaches to different areas of soil and forest ecology such as soil health, physical, chemical properties, impact of forest on soils, plant diversity, forest fragmentation, conservation and sustainable development etc. In the modern world, where the soil and forest resources are increasingly threatened, ecologist and conservationist are playing a major role in providing scientific inputs in conservation efforts. Therefore, there has been a need to compile and collate the research findings in these areas and link bio sciences research with soil and forest ecosystem conservation and sustainable development. This book entitled "Advances in Soil & Forest Research" is an attempt in this direction. The volume comprises 3 research investigations contributed by eminent scholars of various fields of soil and forest ecology. The book would be excellent references for researchers, policy makers and practitioners.

Black & white print.This publication, Keys to Soil Taxonomy, 13th edition, 2022, incorporates the amendments approved by the regional and national conferences of the National Cooperative Soil Survey since the publication of the last edition of the Keys in 2014. The authors of the Keys to Soil Taxonomy are identified as the "Soil Survey Staff." This term is meant to include all of the soil classifiers in the National Cooperative Soil Survey program and in the international community who have made significant contributions to the improvement of the taxonomic system.

Soybean (Glycine max L. (Merr)) is one of the most important crops worldwide. Soybean seeds are vital for both protein meal and vegetable oil. Soybean was domesticated in China, and since last 4-5 decades it has become one of the most widely grown crops around the globe. The crop is grown on an anticipated 6% of the world's arable land, and since the 1970s, the area in soybean production has the highest percentage increase compared to any other major crop. It is a major crop in the United States, Brazil, China and Argentina and important in many other countries. The cultivated soybean has one wild annual relative, G. soja, and 23 wild perennial relatives. Soybean has spread to many Asian countries two to three thousand years ago, but was not known in the West until the 18th century. Among the various constraints responsible for decrease in soybean yields are the biotic and abiotic stresses which have recently increased as a result of changing climatic scenarios at global level. A lot of work has been done for cultivar development and germplasm enhancement through conventional plant breeding. This has resulted in development of numerous high yielding and climate resilient soybean varieties. Despite of this development, plant breeding is long-term by nature, resource dependent and climate dependent. Due to the advancement in genomics and phenomics, significant insights have been gained in the identification of genes for yield improvement, tolerance to biotic and abiotic stress and increased quality parameters in soybean. Molecular breeding has become routine and with the advent of next generation sequencing technologies resulting in SNP based molecular markers, soybean improvement has taken a new dimension and resulted in mapping of genes for various traits that include disease resistance, insect resistance, high oil content and improved yield.This book includes chapters from renowned potential soybean scientists to discuss the latest updates on soybean molecular and genetic perspectives to elucidate the complex mechanisms to develop biotic and abiotic stress resilience in soybean. Recent studies on the improvement of oil quality and yield in soybean have also been incorporated.

This book explores the interaction between climate change phenomena and the soil¿plant¿atmosphere continuum (SPAC), which inspects the crucial role of anthropogenic greenhouse gas emissions in modifying the net ecosystem response towards the modified environment. Increasing concentration of anthropogenic greenhouse gases (carbon dioxide, methane and nitrous oxide) from massive deforestation, fossil fuel burning and rapid industrialization in the post-nineteenth century have led to adverse changes in our global climate system. The book evaluates the net impact of climate change on soil, plants and the atmosphere individually and in totality. Among the topics it covers are the impact of climate change on soil environment which encompasses soil processes, nutrient cycling, soil carbon sequestration, soil biota response and soil health management. Also included are the impact on plants with respect to the dry matter assimilation pattern, modification in resource use efficiency, rhizosphere interactions, management of biotic and abiotic stress factors, and regulatory mechanisms of biotic stress factors in modifying the net agroecosystem response towards climate change. Moreover, potential genetic engineering options for establishing C4 or Crassulacean acid metabolism (CAM) in C3 plants, heat¿drought stress on pollen biology, breeding ideotype, ecological indicators and crop simulation modelling are considered. Lastly, the impact on the atmosphere takes into account greenhouse gas measurements, mitigation options, eddy covariance measurement of greenhouse gasses, satellite-based monitoring, ecosystem services, abiotic stress management options, air pollution and atmospheric modelling. This book is a valuable resource for researchers, students and policymakers in understanding climate change impacts on interaction processes among the atmosphere, soil and plants from the local to regional scales.