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钾是作物生长发育不可少的三要素之一,但各种作物所需钾肥与氮、磷肥必保持一定的比例。钾素如供应不足,作物养分必失调,从而影响作物的正常生长发育一、钾肥的增产效果我国长江以南各省大面积施用钾肥获得了很好的效果。据湖南、浙江等省多年试验结果,在施用氮、磷肥的基础上施用钾肥,早稻每亩增产9～10%,每公斤钾吧增产稻谷5～5.5公斤;晚稻每亩增产10～14%,每公斤钾肥增产稻谷5.3～6.3公斤;油
Potassium is one of the three essential elements of crop growth and development, but a variety of crops required for potash and nitrogen, phosphate must maintain a certain ratio. If insufficient supply of potassium, crop nutrients will be out of tune, thus affecting the normal growth and development of crops First, the yield-increasing effect of potassium in various provinces in the south of the Yangtze River in our country a large area of application of potassium fertilizer has achieved good results. According to the results of many years of experiments in Hunan and Zhejiang provinces, applying potassium fertilizer on the basis of applying nitrogen and phosphate fertilizer, the yield of early rice increased 9% to 10% per mu and that of potassium increased from 5 to 5.5 kg per kilogram. Late rice increased yield by 10% to 14% Kilo-kilogram of rice per kilogram yield 5.3 ~ 6.3 kg; oil