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Impact Of Tillage And Management Practices On Soil Organic Carbon And Nitrogen Dynamics In Diverse Agroecosystems
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Book Synopsis Impact of Tillage and Management Practices on Soil Organic Carbon and Nitrogen Dynamics in Diverse Agroecosystems by : Samba Ansumana Kawa
Download or read book Impact of Tillage and Management Practices on Soil Organic Carbon and Nitrogen Dynamics in Diverse Agroecosystems written by Samba Ansumana Kawa and published by . This book was released on 2010 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and Organic Matter Storage in Agricultural Soils by : M.R. Carter
Download or read book Structure and Organic Matter Storage in Agricultural Soils written by M.R. Carter and published by CRC Press. This book was released on 1995-10-23 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils comprise the largest pool of terrestrial carbon and therefore are an important component of carbon storage in the biosphere-atmosphere system. Structure and Organic Matter Storage in Agricultural Soils explores the mechanisms and processes involved in the storage and sequestration of carbon in soils. Focusing on agricultural soils - from tropical to semi-arid types - this new book provides an in-depth look at structure, aggregation, and organic matter retention in world soils. The first two sections of the book introduce readers to the basic issues and scientific concepts, including soil structure, underlying mechanisms and processes, and the importance of agroecosystems as carbon regulators. The third section provides detailed discussions of soil aggregation and organic matter storage under various climates, soil types, and soil management practices. The fourth section addresses current strategies for enhancing organic matter storage in soil, modelling techniques, and measurement methods. Throughout the book, the importance of the soil structure-organic matter storage relationship is emphasized. Anyone involved in soil science, agriculture, agronomy, plant science, or greenhouse gas and global change studies should understand this relationship. Structure and Organic Matter Storage in Agricultural Soils provides an ideal source of information not only on the soil structure-storage relationship itself, but also on key research efforts and direct applications related to the storage of organic matter in agricultural soils.
Book Synopsis Long-term Tillage, Cropping Sequence, and Nitrogen Fertilization Effects on Soil Carbon and Nitrogen Dynamics by : Fugen Dou
Download or read book Long-term Tillage, Cropping Sequence, and Nitrogen Fertilization Effects on Soil Carbon and Nitrogen Dynamics written by Fugen Dou and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Management practices that may increase soil organic matter (SOM) storage include conservation tillage, especially no till (NT), enhanced cropping intensity, and fertilization. My objectives were to evaluate management effects on labile [soil microbial biomass (SMB) and mineralizable, particulate organic matter (POM), and hydrolyzable SOM] and slow (mineral-associated and resistant organic) C and N pools and turnover in continuous sorghum [Sorghum bicolor (L.) Moench.], wheat (Triticum aestivum L.), and soybean [Glycine max (L.) Merr.], sorghum-wheat/soybean, and wheat/soybean sequences under conventional tillage (CT) and NT with and without N fertilization. A Weswood silty clay loam (fine, mixed, thermic Fluventic Ustochepts) in southern central Texas was sampled at three depth increments to a 30-cm depth after wheat, sorghum, and soybean harvesting. Soil organic C and total N showed similar responses to tillage, cropping sequence, and N fertilization following wheat, sorghum, and soybean. Most effects were observed in surface soils. NT significantly increased SOC. Nitrogen fertilization significantly increased SOC only under NT. Compared to NT or N addition, enhanced cropping intensity only slightly increased SOC. Estimates of C sequestration rates under NT indicated that SOC would reach a new equilibrium after 20 yr or less of imposition of this treatment. Labile pools were all significantly greater with NT than CTat 0 to 5 cm and decreased with depth. SMB, mineralizable C and N, POM, and hydrolyzable C were highly correlated with each other and SOC, but their slopes were significantly different, being lowest in mineralizable C and highest in hydrolyzable C. These results indicated that different methods determined various fractions of total SOC. Results from soil physical fractionation and 13C concentrations further supported these observations. Carbon turnover rates increased in the sequence: ROC
Book Synopsis Tillage and Residue Management Effects on Soil Organic Matter Dynamics in a Sandy-loam by : Moshe Tuvia Halpern
Download or read book Tillage and Residue Management Effects on Soil Organic Matter Dynamics in a Sandy-loam written by Moshe Tuvia Halpern and published by . This book was released on 2009 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Organic Matter in Sustainable Agriculture by : Fred Magdoff
Download or read book Soil Organic Matter in Sustainable Agriculture written by Fred Magdoff and published by CRC Press. This book was released on 2004-05-27 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recognition of the importance of soil organic matter (SOM) in soil health and quality is a major part of fostering a holistic, preventive approach to agricultural management. Students in agronomy, horticulture, and soil science need a textbook that emphasizes strategies for using SOM management in the prevention of chemical, biological, and physical problems. Soil Organic Matter in Sustainable Agriculture gathers key scientific reviews concerning issues that are critical for successful SOM management. This textbook contains evaluations of the types of organic soil constituents—organisms, fresh residues, and well-decomposed substances. It explores the beneficial effects of organic matter on soil and the various practices that enhance SOM. Chapters include an examination of the results of crop management practices on soil organisms, organic matter gains and losses, the significance of various SOM fractions, and the contributions of fungi and earthworms to soil quality and crop growth. Emphasizing the prevention of imbalances that lead to soil and crop problems, the text also explores the development of soils suppressive to plant diseases and pests, and relates SOM management to the supply of nutrients to crops. This book provides the essential scientific background and poses the challenging questions that students need to better understand SOM and develop improved soil and crop management systems.
Book Synopsis Soil Health and Intensification of Agroecosystems by : Mahdi M. Al-Kaisi
Download or read book Soil Health and Intensification of Agroecosystems written by Mahdi M. Al-Kaisi and published by Academic Press. This book was released on 2017-03-15 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Health and Intensification of Agroecosystems examines the climate, environmental, and human effects on agroecosystems and how the existing paradigms must be revised in order to establish sustainable production. The increased demand for food and fuel exerts tremendous stress on all aspects of natural resources and the environment to satisfy an ever increasing world population, which includes the use of agriculture products for energy and other uses in addition to human and animal food. The book presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate. The book explores the introduction of sustainable agroecosystems that promote biodiversity, sustain soil health, and enhance food production as ways to help mitigate some of these adverse effects. New agroecosystems will help define a resilient system that can potentially absorb some of the extreme shifts in climate. Changing the existing cropping system paradigm to utilize natural system attributes by promoting biodiversity within production agricultural systems, such as the integration of polycultures, will also enhance ecological resiliency and will likely increase carbon sequestration. - Focuses on the intensification and integration of agroecosystem and soil resiliency by presenting suggested modifications of the current cropping system paradigm - Examines climate, environment, and human effects on agroecosystems - Explores in depth the wide range of intercalated soil and plant interactions as they influence soil sustainability and, in particular, soil quality - Presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate
Book Synopsis Soil Tillage in Agroecosystems by : Adel El Titi
Download or read book Soil Tillage in Agroecosystems written by Adel El Titi and published by CRC Press. This book was released on 2002-12-26 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil tillage is, and will remain, the guiding component of soil management and consequently has far-reaching implications for agroecosystems. Understanding structures and functions of soil ecosystems under different tillage/no tillage practices is an essential requirement for any future farming concepts. Soil Tillage in Agroecosystems emphasizes th
Book Synopsis Agroecosystem Diversity by : Gilles Lemaire
Download or read book Agroecosystem Diversity written by Gilles Lemaire and published by Academic Press. This book was released on 2018-10-08 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agro-Ecosystem Diversity: Impact on Food Security and Environmental Quality presents cutting-edge exploration of developing novel farming systems and introduces landscape ecology to agronomy. It encompasses the broad range of links between agricultural development and ecological impact and how to limit the potential negative results. Presented in seven sections, each focusing on a specific challenge to sustaining diversity, the book provides insights toward the argument that by re-introducing diversity, it should be possible to maintain a high level of productivity of agro-ecosystems while also maintaining and/or restoring a satisfactory level of environment quality and biodiversity. Demonstrates that diversified agro-ecosystems can be intensified with environmental quality preserved, restored and enhanced Includes analysis of economic constraints leading to specialization of farms and regions and the social locking forces resisting to diversification of agro-ecosystems Presents a global vision of world agriculture and the tradeoff between a necessary increase in food production and restoring environment quality
Book Synopsis Tillage and Crop Management Effects on Air, Water, and Soil Quality in California by : W. R. Horwath
Download or read book Tillage and Crop Management Effects on Air, Water, and Soil Quality in California written by W. R. Horwath and published by UCANR Publications. This book was released on 2008 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation tillage (CT) has become an important management tool in production systems throughout the world. Learn how it lessens the environmental impacts of farming in California.
Book Synopsis Soil organic carbon dynamics and carbon sequestration in a semiarid Mediterranean agroecosystem by : Francisco Joaquín Morell Soler
Download or read book Soil organic carbon dynamics and carbon sequestration in a semiarid Mediterranean agroecosystem written by Francisco Joaquín Morell Soler and published by . This book was released on 2012 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Organic Carbon Dynamics and Carbon Sequestration in a Semiarid Mediterranean Agroecosystem: Effects of Conservation Tillage and Nitrogen Fertilization by : Francisco Joaquín Morell Soler
Download or read book Soil Organic Carbon Dynamics and Carbon Sequestration in a Semiarid Mediterranean Agroecosystem: Effects of Conservation Tillage and Nitrogen Fertilization written by Francisco Joaquín Morell Soler and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Communities and Ecosystems by : David A. Wardle
Download or read book Communities and Ecosystems written by David A. Wardle and published by Princeton University Press. This book was released on 2002-05-12 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil.
Book Synopsis Nitrogen Dynamics and Cover Crop Management in a Conservation Tillage Agroecosystem by : Kaden Blue Koffler
Download or read book Nitrogen Dynamics and Cover Crop Management in a Conservation Tillage Agroecosystem written by Kaden Blue Koffler and published by . This book was released on 2008 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tillage Systems in the Tropics by : R. Lal
Download or read book Tillage Systems in the Tropics written by R. Lal and published by Food & Agriculture Org.. This book was released on 1995 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this Bulletin are to collate up-to-date information on soil tillage requirements for soils in the tropics; to assess the impacts of different ways of tillage on soil, environment and crop productivity; and to outline criteria for developing environment-friendly and economically viable tillage techniques for sustainable use of soil and water resources
Book Synopsis Soil Management and Greenhouse Effect by : John M. Kimble
Download or read book Soil Management and Greenhouse Effect written by John M. Kimble and published by CRC Press. This book was released on 2018-02-06 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Management and Greenhouse Effect focuses on proper management of soils and its effects on global change, specifically, the greenhouse effect. It contains up-to-date information on a broad range of important soil management topics, emphasizing the critical role of soil for carbon storage. Sequestration and emission of carbon and other gases are examined in various ecosystems, in both natural and managed environments, to provide a comprehensive overview. This useful reference includes chapters that address policy issues, as well as research and development priorities. The material in this volume is valuable not only to soil scientists but to the entire environmental science community.
Book Synopsis Agricultural Management Systems Affect Soil Health and Crop Production in the Drylands of Eastern New Mexico by : Vesh Raj Thapa
Download or read book Agricultural Management Systems Affect Soil Health and Crop Production in the Drylands of Eastern New Mexico written by Vesh Raj Thapa and published by . This book was released on 2018 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural management practices influence soil health, short-term nutrient cycling, and agroecosystem functioning in the semiarid drylands of the southern Ogallala aquifer region. The main objectives of this research were to (a) assess the effects of different management systems [ungrazed grassland (UGL), grazed grassland (GGL), and croplands with livestock grazed conventional tillage (LGCT), no-tillage (NY), and strip-tillage (ST) on selected soil health indicators measured at surface (0-0.2 m) and subsurface (0.2-0.4 m) soil depths and (b) evaluate short-term soil carbon (SOC) and nitrogen (N) dynamics, and crop production under different tillage systems [no-tillage (NT) and strip-tillage (ST)] and cover cropping practices (rye cover crop and no-cover crop) in drylands in the eastern New Mexico. The field experiment was established at the New Mexico State University, Agricultural Science Center (ASC) at Clovis, NM (34°35' N, 103°12' W, 1348 elevation) and nearby farmers' fields. The study at ASC, Clovis was established in a corn (Zea mays)-sorghum (Sorghum bicolor) rotation and cereal rye (Secale cereal L.) Cover cropping treatments were nested within each tillage system in 2016/17 and 2017/18. Soil samples were collected from all the plots in the summer 2017 from 0-0.4 m depth and analyzed for soil pH, electrical conductivity (EC), soil bulk density, SOC, soil particulate organic matter (POM), permanganate oxidizable carbon (POXC), POXC:SOC ratio, soil inorganic N, and wet aggregate stability (WAS) in the first study whereas soil pH, EC, soil inorganic N, potentially mineralizable nitrogen (PMN) and carbon (PMC), POXC, gravimetric soil water content (SWC) and wet aggregate stability (WAS) for 0-0.15 m depth were assessed in February, May, and October of 2017, and February 2018 in the second study. The results of the first study revealed that soils under grassland systems had more SOC content, POM content and higher aggregate stability than soils under cropping systems. Soil bulk density was significantly higher in croplands than in grasslands. Livestock grazing in conventional tillage cropping system improved SOC and POM whereas no-tillage and strip-tillage as well as grasslands increased macroaggregate stability. Soil disturbance in LGCT and ST increased N availability over GGL and UGL. Soil properties did not vary significantly between managements in sub-surface (0.2-0.4 m) depth. Results from the second study unveiled that soil pH and POXC were not significantly different between agricultural management practices, but EC was significantly higher under ST than under NT in both crop rotation phases in February, May and October 2017 sampling. Cover cropping increased PMC in no-tillage and strip-tillage. Strip tillage increased nitrogen availability in the soil than no-tillage. There was no significant effect of tillage systems and cover cropping treatments on crop yields. These studies suggested that reducing soil disturbance, restoring grasslands, and diversifying cropping system along with livestock-integration could increase soil carbon sequestration, improve social health, and increase nutrient cycling leading to the development of resilient dryland agroecosystems in the southern Ogallala aquifer region.
Book Synopsis Soil Organic Carbon and Feeding the Future by : Rattan Lal
Download or read book Soil Organic Carbon and Feeding the Future written by Rattan Lal and published by CRC Press. This book was released on 2021-12-30 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil organic matter (SOM) is a highly reactive constituent of the soil matrix because of its large surface area, high ion exchange capacity, enormous affinity for water due to hygroscopicity, and capacity to form organo-mineral complexes. It is an important source and sink of atmospheric CO2 and other greenhouse gases depending on climate, land use, soil and crop management, and a wide range of abiotic and biotic factors, including the human dimensions of socioeconomic and political factors. Agroecosystems are among important controls of the global carbon cycle with a strong impact on anthropogenic or abrupt climate change. This volume of Advances in Soil Sciences explains pedological processes set-in-motion by increases in SOM content of depleted and degraded soils. It discusses the relationship between SOM content and critical soil quality parameters including aggregation, water retention and transport, aeration and gaseous exchange, and chemical composition of soil air. The book identifies policy options needed to translate science into action for making sustainable management of SOM as a strategy for adaptation to and mitigation of climate change. Features: Relates soil organic matter stock to soil processes, climate parameters, vegetation, landscape attributes Establishes relationships between soil organic matter and land use, species, and climate Identifies land use systems for protecting and restoring soil organic matter stock Links soil organic matter stock with the global carbon cycle for mitigation of climate change Part of the Advances in Soil Sciences series, this volume will appeal to agricultural, environmental, and soil scientists demonstrating the link between soil organic matter stock and provisioning of critical ecosystem services for nature and humans.
