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据近两年来的报道,不論在淮北低产地或淮南丘陵地,棉花施用过磷酸鈣都有显著的增产效果。但在沿江棉区施用过磷酸鈣还不大习慣,甚至有些人对其肥效还抱着怀疑态度。为此,我們于1964—1965年在貴池县农业局、烏沙区农业技术推广站的配合下,先后进行过磷酸鈣的肥效調查,并在烏沙公社基点設置了施肥方法的試驗,取得了显著的成效,同时也起到了一定的示范作用。現将調查与試驗的結果分述于下,仅作生产参考。
According to the reports of the past two years, no matter in low-yield areas of Huaibei or Huainan hilly areas, the application of cotton superphosphate has a significant yield-increasing effect. However, the use of superphosphate in the cotton fields along the Yangtze River is not yet a big habit, and some people are still skeptical about its efficiency. To this end, in 1964-1965 in Guichi County Bureau of Agriculture, Usha District Agricultural Technology Extension Station with the cooperation, has conducted a survey of fertilizer efficiency of calcium phosphate, and the commune in the Usha commune set fertilization test, obtained Significant results, but also played a role model. Now the results of the investigation and test are described below, only for production reference.