不同玉米栽培模式对土壤物理性状及产量影响的研究

摘要

According to the maize production situation in Heilongjiang province ,through comparing the four cul-tivation models that subsoiling techniques ,straw returning to field techniques ,plastic film mulching techniques and conventional tillage model ,the effect of the four different cultivation models on soil physical properties and yield of maize was studied .The results showed that the soil moisture content in the models of straw returning to field techniques and plastic film mulching techniques were all higher than that of the other two models .The soil bulk in subsoiling techniques model was higher than that of the other three models .The soil temperature and yield in plastic film mulching techniques model were higher than those of the other three models .Straw re-turning to field techniques model could improve comprehensive benefits better than the other cultivation mod -els .%　　针对黑龙江玉米生产现状，通过对深松技术、秸秆还田技术、地膜覆盖技术和常规耕作技术模式的比较研究，探讨了玉米栽培技术对土壤物理性状及产量的影响。结果表明：在土壤含水量方面，秸秆还田技术和地膜覆盖技术均高于其它两个处理；在土壤容重方面，深松技术好于其它3个处理；在地温方面，地膜覆盖技术高于其它3个处理；在产量方面，地膜覆盖技术高于其它3个处理；在综合效益方面，秸秆还田技术的综合效益最高。