摘要
1986～1989年对小麦、玉米地覆盖秸草研究结果表明:农田覆盖秸草,可增加土壤有机质及氮、磷含量,减轻盐碱,抑制杂草,调节地温,降低土壤容重,增加土壤微生物,改善土壤的物理、化学、生物性状,并可蓄水保墒,提高水的利用率.在覆盖秸草0～8t/ha(0～533kg/亩)范围内,小麦、玉米地每增加覆盖秸草1t/ha(67kg/亩),可分别增产小麦3.51%,玉米14.2%.
According to the study on covering straw manure in wheat and corn fields, we found that couering straw manure may increase soil's organic matter and the content of nitrogen and phosphorus, decrease salinity and alkalinity, inhibit the growth of grasses, adjust earth temperature, reduce soil capacity, increase soil microbe, improue soil physical, chemical and biotogical properties, retain water and preserve soil moisture, and raise water's utilization ratio. In the scope of covering straw 0 ~ 8 t/ha(0~533kg/mu) , increasing 1t/ha ( 67kg/mu ) in wheat and corn fields, their output will increase wheat 3.51%, corn 14.2%.
出处
《河南职业技术师范学院学报》
1991年第3期7-13,共7页
Journal of Henan Vocation-Technical Teachers College
基金
此项研究为"七五"国家重点科技攻关项目<华北地区及山西能源基地水资源研究>课题之一.
关键词
玉米
小麦
秸草
覆盖
增产效应
corn,wheat,covering straw manure,retain water and preserue soil moisture,increase fertitijy of the soil,increase production eff ec t
