Title: Assessing Soil Quality by Testing Organic Matter
Abstract: Chapter 5 Assessing Soil Quality by Testing Organic Matter Lawrence J. Sikora, Lawrence J. Sikora USDA-ARS Beltsville Agricultural Research Center, Beltsville, MarylandSearch for more papers by this authorVladimir Yakovchenko, Vladimir Yakovchenko USDA-ARS Beltsville Agricultural Research Center, Beltsville, MarylandSearch for more papers by this authorCynthia A. Cambardella, Cynthia A. Cambardella National Soil Tilth Laboratory, Ames, IowaSearch for more papers by this authorJohn W. Doran, John W. Doran Soil and Water Conservation Research Unit, Lincoln, NebraskaSearch for more papers by this author Lawrence J. Sikora, Lawrence J. Sikora USDA-ARS Beltsville Agricultural Research Center, Beltsville, MarylandSearch for more papers by this authorVladimir Yakovchenko, Vladimir Yakovchenko USDA-ARS Beltsville Agricultural Research Center, Beltsville, MarylandSearch for more papers by this authorCynthia A. Cambardella, Cynthia A. Cambardella National Soil Tilth Laboratory, Ames, IowaSearch for more papers by this authorJohn W. Doran, John W. Doran Soil and Water Conservation Research Unit, Lincoln, NebraskaSearch for more papers by this author Book Editor(s):F. R. Magdoff, F. R. MagdoffSearch for more papers by this authorM. A. Tabatabai, M. A. TabatabaiSearch for more papers by this authorE. A. Hanlon Jr., E. A. Hanlon Jr.Search for more papers by this author First published: 01 January 1996 https://doi.org/10.2136/sssaspecpub46.c5Book Series:SSSA Special Publications AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onFacebookTwitterLinked InRedditWechat Summary Soil is a finite resource and interest in measuring the degradation, improvement, or preservation of soil has led to efforts in developing tests to evaluate the quality of soil. In Missouri, 50 yr of cropping to continuous com caused a 56% decline in SOM as compared with Soil organic matter (SOM) levels of virgin timber or mixed grasses. Practical evaluation of SOM change as an indicator of soil quality will require specific analysis of the dynamic SOM fractions that define SOM quality and serve as indicators of potential long-term change in the quantity of SOM. The biological factors associated with organic C are microbial biomass, respiration, enzymes and active C fractions such as carbohydrates and light fraction. Suggestions of SOM components that may be useful in soil quality evaluation and serve as early warning indicators are particulate organic matter or POM, microbial biomass and specific respiration. Soil Organic Matter: Analysis and Interpretation, Volume 46 RelatedInformation
Publication Year: 2015
Publication Date: 2015-10-26
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 47
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