The Importance Of Soil Organic Matter

Author : Alexandra Bot,José Benites
Publisher : Food & Agriculture Org.
Page : 96 pages
File Size : 45,6 Mb
Release : 2005
Category : Technology & Engineering
ISBN : 9251053669

Get Book

The Importance of Soil Organic Matter by Alexandra Bot,José Benites Pdf

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.

Author : M. M. Kononova
Publisher : Elsevier
Page : 545 pages
File Size : 54,8 Mb
Release : 2013-10-02
Category : Technology & Engineering
ISBN : 9781483185682

Get Book

Soil Organic Matter by M. M. Kononova Pdf

Soil Organic Matter: Its Nature, Its Role in Soil Formation and in Soil Fertility focuses on the contributions of soil organic matter in soil formation and fertility, including weathering, decomposition, and synthesis of humus substances. The publication first elaborates on the main stages in the history of soil humus study and ideas on the composition of soil organic matter and nature of humus substances. Discussions focus on organic substances of individual nature, strictly humus substances in soil organic matter, and humus substances as a complex of high molecular- weight compounds. The text then examines the biochemistry of humus formation, including the role of physical, chemical, and biological factors, origin of humus substances, possible participation of lignin in the formation of humus substances, and the role of oxidizing enzymes in the synthesis of humus substances. The manuscript takes a look at the importance of organic matter in soil formation and soil fertility and the natural factors of humus formation. Topics include the role of organic matter in the weathering and decomposition of soil minerals; role of organic matter in the formation of soil structure; effect of organic matter on the growth and development of plants; and influence of chemical and physicochemical soil properties on humus formation. The publication is a dependable source material for readers interested in the influence of soil organic matter in soil formation and fertility.

Author : Fred Magdoff,Ray R. Weil
Publisher : CRC Press
Page : 411 pages
File Size : 47,6 Mb
Release : 2004-05-27
Category : Technology & Engineering
ISBN : 9780203496374

Get Book

Soil Organic Matter in Sustainable Agriculture by Fred Magdoff,Ray R. Weil Pdf

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.

Author : Brajesh Singh
Publisher : Academic Press
Page : 340 pages
File Size : 52,9 Mb
Release : 2018-04-12
Category : Science
ISBN : 9780128127674

Get Book

Soil Carbon Storage by Brajesh Singh Pdf

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

Author : Anonim
Publisher : Elsevier
Page : 634 pages
File Size : 52,6 Mb
Release : 1973-01-01
Category : Science
ISBN : 0080869696

Get Book

Soil Organic Matter and its Role in Crop Production by Anonim Pdf

Soil Organic Matter and its Role in Crop Production

Author : Frank M. D'Itri
Publisher : Springer
Page : 414 pages
File Size : 48,6 Mb
Release : 1985-10
Category : Nature
ISBN : UOM:39015010071291

Get Book

CONSERVATION TILLAGE by Frank M. D'Itri Pdf

Author : Y. Chen,Y. Avnimelech
Publisher : Springer Science & Business Media
Page : 312 pages
File Size : 47,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789400944268

Get Book

The Role of Organic Matter in Modern Agriculture by Y. Chen,Y. Avnimelech Pdf

The use of organic residues as a means of maintaining and increasing soil fertility is of long-standing. This tradition has been somewhat neglected since the introduc tion of mineral fertilizers at low cost. More and more farmers and scientists are now showing renewed interest in the proper and effective use of org~tnic residues, composts and other recycled organic additives. The role and function of organic amendments in modern agricultural systems have become topics of major interest in the scientific and agricultural communities. Research work on residue disposal has provided new concepts on the interaction between organic components and soils as well as new handling technologies (e. g. pelletizing of organic residues). The trend to conserve energy has led scientists to study the minimal tillage system, to find ways of replacing conventional inorganic fertilizers with natural organic prod ucts or microbial preparations, and to develop new composting methods. The drive to achieve higher yields in commercial greenhouse farming has led to a search for optimum substrates as growth media and for improved management techniques. This has led to the introduction of organic substitutes for peat, nota bly those originating from agricultural wastes. Another important aspect is the current interest in organic farming, where use of synthetic chemicals is avoided or prohibited. An increasing percentage of the population in highly developed countries is willing to pay premium prices for food produced on soils where inorganic fertilizers and other agricultural chemicals have not been used.

Author : Philip Tow,Ian Cooper,Ian Partridge,Colin Birch
Publisher : Springer Science & Business Media
Page : 1324 pages
File Size : 42,5 Mb
Release : 2011-09-16
Category : Technology & Engineering
ISBN : 9781402091322

Get Book

Rainfed Farming Systems by Philip Tow,Ian Cooper,Ian Partridge,Colin Birch Pdf

While a good grasp of the many separate aspects of agriculture is important, it is equally essential for all those involved in agriculture to understand the functioning of the farming system as a whole and how it can be best managed. It is necessary to re-assess and understand rain-fed farming systems around the world and to find ways to improve the selection, design and operation of such systems for long term productivity, profitability and sustainability. The components of the system must operate together efficiently; yet many of the relationships and interactions are not clearly understood. Appreciation of these matters and how they are affected by external influences or inputs are important for decision making and for achieving desirable outcomes for the farm as a whole. This book analyses common rain-fed farming systems and defines the principles and practices important to their effective functioning and management.

Author : J. H. Stallings
Publisher : Unknown
Page : 28 pages
File Size : 53,5 Mb
Release : 1952
Category : Soil structure
ISBN : SRLF:D0005217062

Get Book

Soil Aggregate Formation by J. H. Stallings Pdf

Author : M.R. Carter,Bobby A. Stewart
Publisher : CRC Press
Page : 502 pages
File Size : 47,7 Mb
Release : 1995-10-23
Category : Technology & Engineering
ISBN : 1566700337

Get Book

Structure and Organic Matter Storage in Agricultural Soils by M.R. Carter,Bobby A. Stewart Pdf

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.

Author : Fred Magdoff,Harold Van Es
Publisher : Sare
Page : 294 pages
File Size : 54,9 Mb
Release : 2009
Category : Humus
ISBN : 1888626135

Get Book

Building Soils for Better Crops by Fred Magdoff,Harold Van Es Pdf

"'Published by the Sustainable Agriculture Research and Education (SARE) program, with funding from the National Institute of Food and Agriculture, U.S. Department of Agriculture."

Author : Franklin E. Allison
Publisher : Unknown
Page : 637 pages
File Size : 53,9 Mb
Release : 1973
Category : Humus
ISBN : LCCN:10003595

Get Book

Soil Organic Matter and Its Role in Crop Production by Franklin E. Allison Pdf

Author : Malcolm E. Sumner
Publisher : CRC Press
Page : 2240 pages
File Size : 54,5 Mb
Release : 1999-08-31
Category : Technology & Engineering
ISBN : 0849331366

Get Book

Handbook of Soil Science by Malcolm E. Sumner Pdf

The Handbook of Soil Science provides a resource rich in data that gives professional soil scientists, agronomists, engineers, ecologists, biologists, naturalists, and their students a handy reference about the discipline of soil science. This handbook serves professionals seeking specific, factual reference information. Each subsection includes a description of concepts and theories; definitions; approaches; methodologies and procedures; tabular data; figures; and extensive references.

Author : Richard V. Pouyat,Deborah S. Page-Dumroese,Toral Patel-Weynand,Linda H. Geiser
Publisher : Springer Nature
Page : 306 pages
File Size : 43,6 Mb
Release : 2020-09-02
Category : Science
ISBN : 9783030452162

Get Book

Forest and Rangeland Soils of the United States Under Changing Conditions by Richard V. Pouyat,Deborah S. Page-Dumroese,Toral Patel-Weynand,Linda H. Geiser Pdf

This open access book synthesizes leading-edge science and management information about forest and rangeland soils of the United States. It offers ways to better understand changing conditions and their impacts on soils, and explores directions that positively affect the future of forest and rangeland soil health. This book outlines soil processes and identifies the research needed to manage forest and rangeland soils in the United States. Chapters give an overview of the state of forest and rangeland soils research in the Nation, including multi-decadal programs (chapter 1), then summarizes various human-caused and natural impacts and their effects on soil carbon, hydrology, biogeochemistry, and biological diversity (chapters 2–5). Other chapters look at the effects of changing conditions on forest soils in wetland and urban settings (chapters 6–7). Impacts include: climate change, severe wildfires, invasive species, pests and diseases, pollution, and land use change. Chapter 8 considers approaches to maintaining or regaining forest and rangeland soil health in the face of these varied impacts. Mapping, monitoring, and data sharing are discussed in chapter 9 as ways to leverage scientific and human resources to address soil health at scales from the landscape to the individual parcel (monitoring networks, data sharing Web sites, and educational soils-centered programs are tabulated in appendix B). Chapter 10 highlights opportunities for deepening our understanding of soils and for sustaining long-term ecosystem health and appendix C summarizes research needs. Nine regional summaries (appendix A) offer a more detailed look at forest and rangeland soils in the United States and its Affiliates.

Author : F. E. Allison
Publisher : Unknown
Page : 637 pages
File Size : 47,6 Mb
Release : 1973
Category : Electronic
ISBN : OCLC:438988984

Get Book

Soil Organic Matter and Its Role in Crop Production by F. E. Allison Pdf