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转向保护耕作法后,必须修改标准的作物施肥方法和比率。在少耕系统中,改变了的土壤环境条件使秸秆、根茬集结在地表,耕层受到的干扰甚小。由于紧实的土壤不适宜微生物的完全分解,所以表土上的秸秆及根茬分解得很慢。表土有机物是一种不流动的营养库,它可
After moving to conservation tillage, standard crop fertilization methods and ratios must be revised. In the less tillage system, the changed soil environmental conditions make the stalks and root stubs gather on the surface, and the disturbances on the tillage layers are very little. Due to compaction of soil is not suitable for the complete decomposition of microorganisms, so straw and stubble on the top soil decomposition very slowly. Top soil organic matter is a non-flow of nutrition, it can be