随着日本化肥工业的迅速崛起,农田施用有机肥减少。化肥售价低,品种多,而堆厩肥费工费时,养分含最浓度低难施用。因此,施用有机肥的农户越来越少。尽管日本政府很早就提倡采用稻草还田来提高土壤的肥力,但由于日本国内农业劳动力紧缺,且单纯依靠人、畜力翻埋稻草,劳动强度大,除少数机械化程度较高的专业户能付诸实施外,大部分农户都很难实施。在农业科学领域内,日本也曾进行过旷日持久的以施用有机肥为主或以施用化肥为主之间的争论。前者的出发点主要是从培肥地力的观点出发,认为施用有机肥可提高土壤的肥力;而后者是单纯从提供作物的养料出发,认为有机肥的作用主要是提供养料,促 With the rapid rise of Japan’s fertilizer industry, the use of organic fertilizer in farmland has been reduced. Fertilizer price is low, more varieties, and heap manure fertilizer fee, nutrient concentration with low concentration difficult to use. Therefore, fewer and fewer farmers apply organic fertilizer. Although the Japanese government has long advocated the use of straw to increase the fertility of soils, due to the shortage of agricultural labor in Japan and the reliance on human and animal power to bury straw, the labor intensity is high. Only a few specialized households with higher mechanization can apply Most of the peasant households are hard to implement except for the implementation. In the field of agricultural science, Japan has also debated the protracted application of organic fertilizers or the application of fertilizers. The former point of departure is mainly from the perspective of fertilizing soil fertility, that the application of organic fertilizer can increase the fertility of the soil; the latter is simply starting from the provision of nutrients in crops, that the role of organic fertilizer is mainly to provide nutrients, and promote