【作者】 汪可欣； 付强； 吴琼；

【Author】 WANG Ke-xin~1 Fu Qiang~1 WU Qiong~2 (1.College of Water Conservancy and Architecture Engineering,Northeast Agricultural University,Harbin, 150030,China,2.College of Water Resource and Hydropower Engineering,Hebei Engineering University, Hebei Handan 056021,China)

【机构】 东北农业大学水利与建筑学院； 河北工程大学水电学院；

【摘要】 作物生长不但需要充足水分,土壤肥力也是不可或缺的因素。采用合理科学的耕作方式对改善土质结构、水分状况及培肥地力等均有帮助。本文以玉米(东单70)为材料进行田间试验,探讨了保护性耕作措施在节水保墒及保肥护土等方面的影响。结果表明:保护性耕作措施在节水、保墒、抑蒸、保肥、改善土壤结构等方面均优于传统耕作,其中免耕覆盖对节水保墒影响显著,而浅松覆盖在保肥护土及水分利用效率等方面影响显著,条带覆盖次之,均适宜在北方地区大面积推广。更多还原

【Abstract】 Not only is plenty of water necessary to crops growth,but also soil fertilizer is another indispensable factor.It is helpful to improve soil structure,moisture and nutrients with reasonable scientific faming methods.This article through experiment on corn straw mulching explore conservation tillage effect on maintenance capacity of water-fertilizer and soil structure.The result showed conservation tillage was better than traditional cultivation not only on maintenance capacity of water-fertilizer in surface soil but also on water-saving,evaporation-inhibiting and so on,zero-tillage covering was prominent,but surface-pulverize covering was prominent on maintenance capacity of fertilizer in surface soil and water use efficiency.Experimental research and theoretical analysis,all kind of conservation tillage used in this experiment is suitable for application and extensive popularization for Northeast China.更多还原