Xia Zhi-Min, Zhou Jian-Bin, Mei Pei-Pei, Wang Ping, Gui Lin-Guo, Li Long
College of Forestry, Northwest A&F University, Yangling, Shaanxi, China.
Ying Yong Sheng Tai Xue Bao. 2012 Jan;23(1):103-8.
A laboratory incubation experiment was conducted to study the straw decomposition and soil nutrient contents after single and combined applications of maize- and horsebean straws. With the single application of maize straw, the mineralization rates of the straw and soil organic C were lower, and the immobilization of soil mineral N sustained longest. Combined application of maize- and horsebean straws promoted the mineralization of the straws organic C and soil immobilized N. Both single and combined application of the straws increased the contents of soil microbial biomass C and N significantly. It was suggested that a combined application of gramineous and leguminous straws could promote the straws decomposition and harmonize the soil nutrient supply.
进行了一项实验室培养实验，以研究单施和混施玉米秸秆与蚕豆秸秆后的秸秆分解及土壤养分含量。单施玉米秸秆时，秸秆和土壤有机碳的矿化率较低，土壤矿质氮的固定持续时间最长。玉米秸秆与蚕豆秸秆混施促进了秸秆有机碳和土壤固定态氮的矿化。单施和混施秸秆均显著增加了土壤微生物生物量碳和氮的含量。结果表明，禾本科和豆科秸秆混施可促进秸秆分解并协调土壤养分供应。
