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Effect of Crude Carbohydrate Content in Livestock Manure Compost on Organic Matter Decomposition Rate in Upland Soil  

Yun, Hong-Bae (National Institute Agriculture Science & Technology, RDA)
Lee, Youn (National Institute Agriculture Science & Technology, RDA)
Yu, Chang-Yeon (Kangwon National University)
Lee, Sang-Min (National Institute Agriculture Science & Technology, RDA)
Hyun, Byung-Keun (National Institute Agriculture Science & Technology, RDA)
Lee, Yong-Bok (National Institute Agriculture Science & Technology, RDA)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.40, no.5, 2007 , pp. 364-368 More about this Journal
Abstract
The objective of this study was to characterize organic mater decomposition with application of livestock manure compost in upland soil. Six different composts, which were chicken (CHM), pig (PIM), and cow (COM) manure compost added and chicken (CHMS), pig (PIMS), cow (COMS) manure compost with sawdust added, were prepared for this study. These composts have different composition of crude carbohydrate (hemicellulose, cellulose, and lignin). The buried-bag method was used to determine the rate of organic mater decomposition and the changes of crude carbohydrate content during 36 months in the field. In all treatment, hemicellulose content was sharply decreased within 8 months, but considerable amount of lignin was remained after 36 months. After 40 months, the rates of carbon decreasing were 81, 80, 72, 69, 67, and 64 % for CHM, PIM, COM, CHMS, PIMS, and COMS, respectively. The estimated equation of carbon decreasing rate (D), $D=aT^b$, was fit to the carbon decreasing rate vs. elapsed time (T) using a non-linear regression procedure. After 40 months, significant difference of carbon decreasing rate between observed and estimated was not found. The relationship between constant a, b and hemicellulose content in the compost was not observed in this experiment. The cellulose and lignin content in the compost were positively correlated to the constant b and negatively correlated to the constant a.
Keywords
Crude carbohydrate; Livestock manure compost; Carbon decreasing rate;
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Times Cited By KSCI : 1  (Citation Analysis)
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