小麦N素穗肥以8叶期展开施用量佳,时间常年在2月下旬。穗肥配施P、K肥,与单施N肥比较,均有显著增产效果,但N、P、K肥配施效果最好。考查资料表明,增施P、K肥提高了成穗率,中后期群体获得协调发展;倒1—3叶面积增大,叶片素质提高,功能期延长;植株节间充实度提高,增强了抗倒伏能力,是高产稳产的有效措施。 Wheat N prime panicle fertilizer to 8 leaf stage application rate is good, perennial in late February. Spike fertilizer with P, K fertilizer, compared with the single application of N fertilizer, both significantly increased yield, but N, P, K fertilizer best. The test data showed that increasing P and K fertility increased the rate of panicle formation, and the population developed coordinated development in the middle and late stages. The area of ​​panicle 1-3 increased, the leaf quality was improved and the functional period was prolonged. Lodging ability, is an effective measure of high and stable yield.