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1973年秋,我们在四川省简阳县云龙公社石井大队调查时,发现有一块棉田,其中半块的棉株要矮5寸左右,叶色淡一个色阶,叶片也要薄一些。查明原因,知道这半块棉田的底肥是用的羊干粪,棉株较高、叶色较浓的那半块田是用的化肥。队长还特别说,用羊干粪的棉花,吐絮前要自动脱落主茎上的老叶,提早成熟吐絮。这一观察实践,启发我们去思索有机肥的功能,是不是因为有机肥吸水保肥能力强,保持毛管水的时间长,增强了土壤稳水、稳肥、稳温的能力,从而及时地满足了作物的需
In the autumn of 1973, when we surveyed the Shijing Brigade of Yunlong Commune, Jianyang County, Sichuan Province, we found that there was a piece of cotton field in which half of the cotton plants had to be shorter by about 5 inches and the leaf color had a light level and the leaves had to be thinner. Find out why, know that this half of the cotton base fertilizer is sheep dry excrement, higher cotton plant leaf color thicker half of the field is used fertilizer. In particular, the captain said dry sheep dung cotton, bolting flossing before the main stem off the old leaves, mature early boll. This observation and practice, inspired us to think about the function of organic fertilizer, is not because of organic fertilizer absorbent ability to maintain fat, capillary water for a long time and enhance the soil steady water, stable fertilizer, temperature stability in time to meet The crop needs