Differences of Soil Enzyme Activity after Incorporation with Chinese Milk Vetch Litter Cut at Different Growth Stages
2007
Lee, J.H. (Gyeongsang National University, Jinju, Republic of Korea) | Shim, S.I. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: [email protected]
Chinese milk vetch (CMV) is a winter legume that is commonly used as cover crop in Korea. Kill date of cover crop for addition into soil affects N content in cover crop and N availability in soil. This study was conducted to evaluate the effect of CMV as green manure cover crop according to kill dates before growing corn without artificial fertilizer. Top of CMV cut three times on 13 April, 27 April, and 11 May were added into soil at a rate of 600 kg per 10 a. Sugar content in CMV litter was persistently decreased from mid-April to late-May.
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