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1954—1965年,我们曾在衢县樟潭公社的三口畈(江河冲积谷地)、杭州市的珊瑚沙(钱塘江冲积土)以及余姚县的平原稻区(浅海沉积平原),对早稻施用磷肥的增产作用进行了一些调查和试验,现将结果汇总分析于后。一、磷肥的增产效果根据余姚县江中公社、胜归公社、衢县樟潭公社、杭州市珊瑚沙等处26个试点的材料统计,早稻施用磷肥,增产稻谷在5％以内的有3个点,占试验点数的11.5％;增产5～10％的有12个点,占46.2％;增产10～20％的有9个点,占34.6％;增产20％以上有2个点,占7.6％。也就是说,在26个试验中,施磷增产
From 1954 to 1965, we used three phosphate fertilizer (rivers and alluvial valleys) in Quzhou County Zhangtan commune, coral sand (Qiantang River alluvial soil) in Hangzhou city, and plain rice area (shallow sea sedimentary plain) in Yuyao County, Of the increase in production conducted some surveys and experiments, the results are summarized below. I. Effect of phosphate fertilizer production According to the statistics of 26 pilot projects of Yuzhong Commune, Shengguin Commune, Quxian Zhangtan Commune and Hangzhou Coral Sand, phosphate fertilizer was applied to early rice and there were 3 Points, accounting for 11.5% of the test points; yield of 5 to 10% of the 12 points, accounting for 46.2%; yield 10 to 20% of the 9 points, accounting for 34.6%; yield more than 20% of the 2 points, accounting for 7.6 %. That is to say, in 26 experiments, phosphorus was increased