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为了了解过磷酸钙的增产效果,1963年我站在陈集、马集、城关等公社对大豆等作物作了施用过磷酸钙的对比试验。茲将大豆试验结果简报如下: 大豆以过磷酸钙作种肥,据在陈集公社等三处试验结果证明,比不施的每亩能增产30-80%,每斤过磷酸钙能增产大豆2-4斤。为什么大豆以过磷酸钙作种肥能获得如此增产效果呢?据我们调查的资料分析,磷肥能促进大豆根瘤的形成,增加根瘤的数量,一般约增50-100%。由于大豆根瘤的增加,氮素增多,因而也调节了土壤的养分状况,使磷肥的作用得以充分发挥,促进
In order to understand the effect of SSP production increase, in 1963 I stood in Chenji, Maji, Chengguan and other communes on the soybean and other crops made the application of SSP contrast test. The soybean test results will be presented as follows: Soybean as superphosphate fertilizer, according to the Chenji commune and other three test results show that than the non-application of acre can increase 30-80% per kilogram of superphosphate can increase soybean 2-4 pounds. Why soybeans to superphosphate as fertilizer can achieve such a yield effect? According to our survey of information analysis, phosphorus fertilizer can promote the formation of soybean nodules, increase the number of nodules, usually about 50-100%. Due to the increase of soybean nodules, nitrogen increased, and thus also regulate the soil nutrient status, so that the role of phosphate fertilizer to give full play to promote