摘要
采用田间小区试验方法研究了玉米秸秆和根茬留田对土壤生化环境因子的影响。结果表明:玉米秸秆和根茬留田可增加土壤微生物量碳的含量,较对照和单施化肥土壤微生物量碳分别增加38.4％～84.9％和27.2％～51.6％;增强土壤pH值的缓冲性能;改善土壤团聚体结构;有利于土壤中氮、磷、钾、铜、锌、铁、锰等养分的释放与调控,为作物生长创造适宜的土壤生化环境。
Based on field micro-plot experiment, the effects of corn stalk and stubble remained in field on soil biochemical factors were discussed. The results indicated that corn stalk and stubble rationing application of N fertilizer would increase the content of soil microbial biomass carbon. Soil pH buffer capacity was strengthened. Soil aggregate structure was improved. Corn stalk and stubble remained in field would be helpful to maintenance and liberation of soil available nutrients( N, P, K, Cu, Zn, Fe and Mn) .
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2002年第6期54-57,共4页
Journal of Jilin Agricultural University
基金
国家自然科学基金资助项目(30070642)
吉林省科委资助项目(30028001)
