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采用室内培养试验研究了禾本科作物玉米秸秆和豆科作物蚕豆秸秆单施及其不同比例配施后的秸秆分解及土壤养分含量.结果表明:单施玉米秸秆,土壤有机碳的矿化量和秸秆有机碳的矿化速率都较低,土壤矿质态氮被固持的时间也最长;玉米秸秆与蚕豆秸秆配合施用促进了秸秆有机碳和土壤固持矿质态氮的矿化.两种秸秆单施和配施均显著增加土壤微生物生物量碳、氮含量.禾本科作物秸秆与豆科作物秸秆配合施用,可以加快秸秆的分解,协调养分供应.
The indoor cultivation experiments were conducted to study the straw decomposition and soil nutrient contents of gramineous corn stalks and leguminous crops broad bean straw single application and their different proportions.The results showed that the mineralization amount of soil organic carbon The mineralization rate of straw organic carbon was low and the mineral nitrogen was retained for a long time. The combination of corn straw and fava bean straw promoted the mineralization of straw organic carbon and soil holding mineral nitrogen. And combined application significantly increased soil microbial biomass C and N. Gramineous crops straw and leguminous crops with straw, can accelerate the decomposition of straw, to coordinate nutrient supply.