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一、前言水田施厩堆肥的效果,从各地的连用试验结果来看,其累积效果是高的,而要维持地力每年需施1.1吨/10公亩以上。其肥效常因水田的透水性是否良好(也就是土壤类型)而异。潜育土以及黑泥土的水田,由于强还原性引起根部受害,肥效难以表现出来;而低地褐色土肥效较高,其堆肥各肥分(尤其是氮素)的肥效是高的。同时有报告指出,堆肥可以改良土壤物理性质和增强土壤缓衡性能,还有提高水稻根系活性的作用。
I. INTRODUCTION The effect of paddy field manure compost is high from the combined test results of various places. However, the cumulative effect of paddy soil fertilization is required to be 1.1 tons / 10 mu or more per year. Its fertilizer efficiency often due to paddy water permeability is good (that is, soil types) vary. The fertile soil is hard to show due to the strong reducibility causing the root damage in the paddy soils and the paddy soil of the black soil. The fertility of the brown soil in the lowland is higher and the fertilizer efficiency of each compost (especially nitrogen) is high. At the same time, it has been reported that compost can improve the physical properties of soil and enhance the soil balance performance, as well as improve root activity of rice.