国外农作物高产国家近十年来化肥总消耗量增加1.2倍,其中除氮肥增加较多外,磷、钾肥消耗量也相应增加。我省近十年单位面积平均化肥施用量增加2.3倍,但主要是氮、磷两种,钾肥施用量极少。我省钾肥的肥效,文革前在科研单位做了一些试验,效果不很显著,对全省主 In the past 10 years, the total consumption of chemical fertilizers in foreign countries increased by 1.2 times over the past ten years. In addition to the increase in nitrogen fertilizer, the consumption of phosphorus and potassium fertilizer also increased accordingly. In the past 10 years, the average fertilizer application rate per unit area in our province increased by 2.3 times, but mainly nitrogen and phosphorus, and the amount of potassium fertilizer applied was extremely small. Fertilizer effect of potash fertilizer in our province, before the Cultural Revolution in the scientific research units to do some experiments, the effect is not very significant, the province’s main