邹平县秸秆直接还田应用研究

通过采取点面结合的方法,对作物秸秆进行直接盖田、粉碎耕翻和沟内铺垫等多种形式的还田研究。结果表明:秸秆还田后使土壤有机质、全氮、碱解氮、速效磷、速效钾和孔隙度等均有明显增加,容重下降。同时还起到减少土壤水分蒸发、抑制杂草生长、平抑地温、增加田间CO2浓度、抑制返盐等作用,明显地提高了产量。

Straw Returning Applied Research in Zouping County

By adopting the method of combining point,crop straw direct to field,smash tillage and trench bedding and other various forms of returning to field were studied.The result showed that soil organic matter,total nitrogen,available nitrogen,available phosphorus,available potassium and porosity extent were significantly increased,but the bulk density declined after straw returning.Also soil moisture evaporation was reduced,weed growth was inhibited,the ground temperature was stabilized,the CO2 concentration of the field was increasing and the return of salt was inhibited and yield was significantly increased.