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印度学者根据多年的试验研究,提出:提高农作物产量可以完全不用化学肥料的建议。认为可以通过蚯蚓的作用来代替施化肥。方法是在一个容器里填满农村到处有的畜粪、腐烂的树叶、切碎的青草和树枝等生物原料,然后放养蚯蚓,2000条蚯蚓在1个月内可生产1吨珍贵的有机物.把这种肥料施于农田能显著提高各种作物的产量,而且经济、清洁、不污染环境,其肥率不低于化学肥料,对小农经济来说简便经济.尤为适宜.
Indian scholars based on years of experimental research, put forward: improve crop yields can be completely without chemical fertilizer recommendations. It is thought that fertilizers can be replaced by the action of earthworms. The method is to fill a container with biological material such as livestock excrement, decayed leaves, chopped grass and branches everywhere in the countryside, and stocking earthworms. 2000 earthworms can produce 1 ton of valuable organic matter within 1 month. This fertilizers applied to farmland can significantly increase the yield of various crops, and is economical, clean and does not pollute the environment. The fertilizer rate is not lower than that of chemical fertilizers, which is especially suitable for small-scale peasant economy.