我县常年易旱地小麦达50余万亩。由于施肥水平较低,且多采用“一炮轰”的运筹方法,一般年前都形成早发壮苗。但返青后,因肥料不足及干旱的限制,往往表现明显的脱肥早衰现象,成穗少、穗型小、千粒重低,产量一直低而不稳。近年来,我们从本地易旱地小麦的实际情况出发,改用“促前保后”施肥法收到比较好的效果。此法较“一炮轰”施肥法亩增穗1.5万左右,每穗增1～2粒,千粒重增加1克左右,单产提高60～70斤,增产9.6～10.8%。 Our county perennial dry up to more than 50 acres of wheat. Due to the low level of fertilizer, and use “a shelling ” method of operation, the general years ago, the formation of early seedlings. However, after returning to green, the phenomenon of pre-fertilization and premature decline often manifested due to insufficient fertilizer and drought, with fewer spikelets, smaller spikelets, lower grain weight, and lower and unsteady yield. In recent years, we have started from the actual situation of the drought-resilient wheat in the local area and switched to using the method of “promoting the conservation of crops before and afterwards” to receive better results. This method is more “a shelling ” fertilization method acres increased by about 15,000 acres of ear, each spike by 1 to 2 grains, 1000 grain weight increase of about 1 gram, yield increased by 60 to 70 pounds, an increase of 9.6 to 10.8%.