按照杂交水稻的需肥规律,其所需氮、磷、钾的比例为1:0.4:0.8——1,一般比常规水稻的需钾量高40％以上,但是,在生产中,人们往往是重氮轻钾造成土壤中的钾素资源逐渐枯竭,作物体内的营养物质的运输和传导受阻,产量也逐年下降。 According to the law of fertilizer demand of hybrid rice, the ratio of nitrogen, phosphorus and potassium required is 1: 0.4: 0.8-1, which is generally higher than that of conventional rice by more than 40%. However, in production, people tend to be Potassium depletion caused by the depletion of potassium in the soil by diazonium gradually depletes the transport and transport of nutrients in the crop, and the yield also decreases year by year.