Response of Soil Organic Matter to Crop Management

Response of Soil Organic Matter to Crop Management PDF Author: Craig A. Campbell
Publisher: Swift Current, Sask. : Agriculture and Agri-Food Canada, Research Branch
ISBN:
Category : Crop rotation
Languages : en
Pages : 24

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Book Description
Crop rotation studies, if of sufficient duration, can answer important questions related to soil and water quality, soil productivity, and soil conservation. The most comprehensive research effort of its type in Canada is the Swift Current old rotation experiment, established in 1967 on a fallow wheat site. This report summarizes and discusses some of the findings from this ongoing experiment regarding the influence of the rotations on soil organic carbon and nitrogen in the 0-15 centimetre depth of soil up to 1993. Results presented include effects of cropping systems, fertilizers, crop type, and cropping frequency, as well as changes in organic carbon and nitrogen over time.

Response of Soil Organic Matter to Crop Management

Response of Soil Organic Matter to Crop Management PDF Author: Craig A. Campbell
Publisher: Swift Current, Sask. : Agriculture and Agri-Food Canada, Research Branch
ISBN:
Category : Crop rotation
Languages : en
Pages : 24

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Book Description
Crop rotation studies, if of sufficient duration, can answer important questions related to soil and water quality, soil productivity, and soil conservation. The most comprehensive research effort of its type in Canada is the Swift Current old rotation experiment, established in 1967 on a fallow wheat site. This report summarizes and discusses some of the findings from this ongoing experiment regarding the influence of the rotations on soil organic carbon and nitrogen in the 0-15 centimetre depth of soil up to 1993. Results presented include effects of cropping systems, fertilizers, crop type, and cropping frequency, as well as changes in organic carbon and nitrogen over time.

Ecosystem Services and Carbon Sequestration in the Biosphere

Ecosystem Services and Carbon Sequestration in the Biosphere PDF Author: Rattan Lal
Publisher: Springer Science & Business Media
ISBN: 9400764553
Category : Technology & Engineering
Languages : en
Pages : 467

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Book Description
Ecological functions and human wellbeing depend on ecosystem services. Among the ecosystem services are provisional (food, feed, fuel, fiber), regulating (carbon sequestration, waste recycling, water cleansing), cultural (aesthetic, recreational, spiritual), and supporting services (soil formation, photosynthesis, nutrient cycling). Many relationships of various degree exist among ecosystem services. Thus, land use and soil management to enhance biospheric carbon sinks for carbon sequestration requires a comprehensive understanding on the effects on ecosystem services. Payments for ecosystem services including carbon pricing must address the relationship between carbon sequestration and ecosystem services to minimize risks of overshoot, and promote sustainable use of land-based carbon sinks for human wellbeing.

The Importance of Soil Organic Matter

The Importance of Soil Organic Matter PDF Author: Alexandra Bot
Publisher: Food & Agriculture Org.
ISBN: 9789251053669
Category : Technology & Engineering
Languages : en
Pages : 96

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Book Description
Soil organic matter - the product of on-site biological decomposition - affects the chemical and physical properties of the soil and its overall health. Its composition and breakdown rate affect: the soil structure and porosity; the water infiltration rate and moisture holding capacity of soils; the diversity and biological activity of soil organisms; and plant nutrient availability. This document concentrates on the organic matter dynamics of cropping soils and discusses the circumstances that deplete organic matter and their negative outcomes. It then moves on to more proactive solutions. It reviews a "basket" of practices in order to show how they can increase organic matter content and discusses the land and cropping benefits that then accrue.--Publisher's description.

Life Cycle Assessment in the Agri-food Sector

Life Cycle Assessment in the Agri-food Sector PDF Author: Bruno Notarnicola
Publisher: Springer
ISBN: 3319119400
Category : Technology & Engineering
Languages : en
Pages : 408

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Book Description
The book presents an overview of the International practices and state-of-the-art of LCA studies in the agri-food sector, both in terms of adopted methodologies and application to particular products; the final purpose is to characterise and put order within the methodological issues connected to some important agri-food products (wine, olive oil, cereals and derived products, meat and fruit) and also defining practical guidelines for the implementation of LCAs in this particular sector. The first chapter entails an overview of the application of LCA to the food sector, the role of the different actors of the food supply chain and the methodological issues at a general level. The other chapters, each with a particular reference to the main foods of the five sectors under study, have a common structure which entails the review of LCA case studies of such agri-food products, the methodological issues, the ways with which they have been faced and the suggestion of practical guidelines.

Soil Organic Matter in Temperate AgroecosystemsLong Term Experiments in North America

Soil Organic Matter in Temperate AgroecosystemsLong Term Experiments in North America PDF Author: Eldor A. Paul
Publisher: CRC Press
ISBN: 1000721965
Category : Science
Languages : en
Pages : 436

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Book Description
The presence - or absence - of soil organic matter (SOM) has important implications for agricultural productivity. It could also have significant implications for global climate due to its role as a source/sink of carbon. Therefore, it is important to understand the issues related to the accumulation or loss of SOM, to use what we have learned from experiments to make sound decisions about soil and crop management, and to test models and future concepts concerning SOM management. A database is included with the book, presenting tabular data for 34 sites in North America. Soil Organic Matter in Temperate Agroecosystems discusses all of these issues and more, answering such questions as:

Soil Organic Matter and its Role in Crop Production

Soil Organic Matter and its Role in Crop Production PDF Author:
Publisher: Elsevier
ISBN: 0080869696
Category : Science
Languages : en
Pages : 647

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Book Description
Soil Organic Matter and its Role in Crop Production

Soil Organic Matter

Soil Organic Matter PDF Author: Karl Schneider
Publisher:
ISBN:
Category : Crops and soils
Languages : en
Pages : 58

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Book Description


Soil Carbon Storage

Soil Carbon Storage PDF Author: Brajesh Singh
Publisher: Academic Press
ISBN: 0128127678
Category : Science
Languages : en
Pages : 341

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Book Description
Soil Carbon Storage: Modulators, Mechanisms and Modeling takes a novel approach to the issue of soil carbon storage by considering soil C sequestration as a function of the interaction between biotic (e.g. microbes and plants) and abiotic (climate, soil types, management practices) modulators as a key driver of soil C. These modulators are central to C balance through their processing of C from both plant inputs and native soil organic matter. This book considers this concept in the light of state-of-the-art methodologies that elucidate these interactions and increase our understanding of a vitally important, but poorly characterized component of the global C cycle. The book provides soil scientists with a comprehensive, mechanistic, quantitative and predictive understanding of soil carbon storage. It presents a new framework that can be included in predictive models and management practices for better prediction and enhanced C storage in soils. - Identifies management practices to enhance storage of soil C under different agro-ecosystems, soil types and climatic conditions - Provides novel conceptual frameworks of biotic (especially microbial) and abiotic data to improve prediction of simulation model at plot to global scale - Advances the conceptual framework needed to support robust predictive models and sustainable land management practices

Soil Organic Matter in Sustainable Agriculture

Soil Organic Matter in Sustainable Agriculture PDF Author: Fred Magdoff
Publisher: CRC Press
ISBN: 020349637X
Category : Technology & Engineering
Languages : en
Pages : 411

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Book Description
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.

Soil Organic Matter and Feeding the Future

Soil Organic Matter and Feeding the Future PDF Author: Rattan Lal
Publisher: CRC Press
ISBN: 1000483916
Category : Science
Languages : en
Pages : 428

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Book Description
Soil organic matter (SOM) is the primary determinant of soil functionality. Soil organic carbon (SOC) accounts for 50% of the SOM content, accompanied by nitrogen, phosphorus, and a range of macro and micro elements. As a dynamic component, SOM is a source of numerous ecosystem services critical to human well-being and nature conservancy. Important among these goods and services generated by SOM include moderation of climate as a source or sink of atmospheric CO2 and other greenhouse gases, storage and purification of water, a source of energy and habitat for biota (macro, meso, and micro-organisms), a medium for plant growth, cycling of elements (N, P, S, etc.), and generation of net primary productivity (NPP). The quality and quantity of NPP has direct impacts on the food and nutritional security of the growing and increasingly affluent human population. Soils of agroecosystems are depleted of their SOC reserves in comparison with those of natural ecosystems. The magnitude of depletion depends on land use and the type and severity of degradation. Soils prone to accelerated erosion can be strongly depleted of their SOC reserves, especially those in the surface layer. Therefore, conservation through restorative land use and adoption of recommended management practices to create a positive soil-ecosystem carbon budget can increase carbon stock and soil health. This volume of Advances in Soil Sciences aims to accomplish the following: Present impacts of land use and soil management on SOC dynamics Discuss effects of SOC levels on agronomic productivity and use efficiency of inputs Detail potential of soil management on the rate and cumulative amount of carbon sequestration in relation to land use and soil/crop management Deliberate the cause-effect relationship between SOC content and provisioning of some ecosystem services Relate soil organic carbon stock to soil properties and processes Establish the relationship between soil organic carbon stock with land and climate Identify controls of making soil organic carbon stock as a source or sink of CO2 Connect soil organic carbon and carbon sequestration for climate mitigation and adaptation