穗肥对不同类型水稻品种的效应研究

Study on the Effect of Spike Fertilizer on the Various Types of Rice Varieties

通过穗肥对直穗型、穗重型、穗数型水稻品种的效应研究发现，穗肥对不同类型水稻品种的作用有相同之处，也有不同之处。施用钾肥有利于不同类型水稻品种增产；氮、钾肥同时施用直穗型品种增产最显著，穗重型品种次之，穗数型品种不显著。

We studied the effect of spike fertilizer on the various types of Rice varieties, the erect spike type, the large head type and the quantitative spike type and discovered the spike fertilizer had similar effects as well as different effects on different varieties. The potassium fertilizer increased the yield of all types. Potassium and nitrogen fertilizers applied together had the biggest effect on increasing yield of erect spike type, secondary effect on large head type and less effect on quantitative spike type.