小麦生产中大多数以化学肥料为主,肥效发生作用快、供氮持续时间短,而少免耕技术的施肥又集中在表层,后期呈明显早衰现象。1996年我们通过对小麦拔节孕穗肥不同用量试验,得出适宜用量为亩施尿素8～12kg。本试验为探讨稻套麦施用适量拔节肥后,适宜的剑叶肥用量。 Most of the wheat production mainly consists of chemical fertilizers, with rapid fertilizer effect, short duration of nitrogen supply, and less no-tillage technology concentrated in the surface fertilizers, showing obvious premature decline in the later stage. In 1996 we adopted different doses of wheat jointing booting fertilizers test, and concluded that the appropriate amount of urea 8 to 12 kg mu. This experiment to explore the appropriate amount of rice wheat straw jointing fertilizer, the appropriate amount of foliage fertilizer.