【摘要】 综合分析各地残茬(秸秆)覆盖试验结果,从土壤物理性状、土壤水分、土壤养分、土壤温度、农田杂草和水保性能等方面对残茬(秸秆)覆盖的农田生态效应进行了总结,并依据渭北地区实际,介绍了适合该地区旱地冬小麦、旱地春玉米和小麦—玉米一年两熟应用的残茬(秸秆)覆盖技术。更多还原

【Abstract】 Comprehensively analyzing the researches about stubble (straw) mulching conducted in Weibei area, the paper summarizes ecological effects of stubble (straw) mulching in terms of soil physical properties, soil water, soil nutrients, soil temperature, weeds and field water-holding capacity, and briefly introduces the techniques of stubble (straw) mulching suitable for dryland productions of winter wheat and spring corn, and the annual two-cropping system of wheat and corn in accordance with actual conditions of the regions.更多还原