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为了进一步探明钾肥对水稻的肥效及其经济有效的施用方法,在一九七三年晚稻试验的基础上,一九七四年在所内及本地区七个县设了十三个试点,继续进行钾肥对水稻的肥效以及不同施用时期等二个专题试验。现将试验结果综述如下:
In order to further ascertain the effectiveness of potash fertilizer on rice and its economical and effective application method, on the basis of the late rice experiment in 1973, there were thirteen pilots in seven counties in the region and in the region in 1974 and continued Potassium fertilizer on the efficiency of rice and different application periods of two special experiments. The test results are summarized below: