在景泰县采用全膜覆土栽培方式，田间设置有机肥和化肥配施试验，分别于春小麦生长3个关键时期(拔节期、抽穗期、成熟期)测定春小麦叶片N、P、K元素含量，收获后测定籽粒N、P、K元素含量，结果表明，有机肥和氮肥配施对小麦叶片N、P、K元素含量的影响比较明显。随着氮肥和有机肥施用量的增加，叶片和籽粒N含量增加，叶片和籽粒的P、K元素含量随着有机肥施入量增加而增加。故低量有机肥配施高量氮肥、高量有机肥配施低量氮肥均对春小麦的生长发育和产量形成具有积极意义。

The article used the the soil cultivation methods of Covering Soil Mulched With Plastic Films whole film in Jingtai, and the field experiment by chemical fertilizer and organic fertilizer basal fertilizer and return green fertilizer， to determine the content of leaf N, P, K of leaf and grain N， P， K after harvest in the critical period of spring wheat grown 3(jointing， heading， maturity). The results showed that the effects of manure and nitrogen fertilizer on wheat leaf N， P， K content of elements are obvious. With the amount of nitrogen fertilizer and manure applications increase, leaf and grain N content increases, leaves and seeds of P， K content increases with increasing organic fertilizers. Therefore， it has positive meaning for combined application of low-volume organic fertilizers and high nitrogen content， combined application of high-volume low amount and organic nitrogen fertilizers on growth and yield of spring wheat.

S512.1；S147.34