【摘要】 玉米秸秆含有多种营养元素,是重要的有机肥源。通过旱地玉米秸秆覆盖,可以起到降低土壤容重、增加土壤孔隙度、减少土壤水分蒸发、提高土壤有机质和氮、磷、钾等养分的含量、促进玉米生长发育、增加玉米产量的作用。更多还原

【Abstract】 Maize straw,which contains several kinds of nutrient element,is an important organic fertilizer source.Maize straw mulching in dry area,not only can reduce the volume weight and water evaporation of soil,but also can increase the soil porosity,soil organic matter and the content of nutrient elements including nitrogen,phosphorous and potassium.Meanwhile,it may promote the maize growth and increase the maize crop.更多还原