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Effect of Chemical Fertilizer and Organic Fertilizer Long-term Application on Soil Invertase Activity in Wheat/Maize Intercropping System
Author(s): 
Pages: 611-614
Year: Issue:  5
Journal: Research of Agricultural Modernization

Keyword:  长期定位施肥蔗糖酶活性绿肥农家肥秸秆氮肥;
Abstract: 通过小麦与玉米带田20年长期定位施肥试验,研究了长期施用化肥和有机肥对蔗糖酶活性的影响.试验结果表明:施绿肥对提高土壤蔗糖酶活性最为明显,其次是秸秆、氮肥、农家肥;蔗糖酶活性随着生育期的不同而不同,在播前酶活性最低,小麦收获后酶活性达到最大,到玉米收获后降低.在施肥中,有机肥配施氮肥蔗糖酶活性最高;土壤蔗糖酶活性与碱解氮和土壤有机质、速效钾未达到显著相关,土壤蔗糖酶活性与土壤有效磷达到显著相关;速...
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