论文部分内容阅读
全省各地多年的田间肥料试验结果和生产实际经验表明,化肥施用在不同自然条件和生产条件下,增产效果也不同。同一地块施用不同数量的化肥,取得的增产效果和经济效益也有很大差异。特别在粮肥比价低的情况下,在农业技术上认为的最佳施肥量,在农业经济上有时是不可取的。单产最高的施肥量和斤肥增产幅度最大的施肥量,往往
Years of field fertilization test results and practical production experience in various parts of the province show that the application of fertilizers under different natural conditions and production conditions results in different stimulation effects. The same plots of different amounts of fertilizer, yield and economic benefits obtained are also very different. Especially in the case of low ration of grain and fat, the best amount of fertilizer that is considered in agricultural technology is sometimes undesirable in agricultural economy. The highest yield of fertilizers and kg fertilizer yield the largest increase, often