为了改变生产者在冬小麦基肥施用上的盲目性、随意性，解决因施肥不当造成小麦产量难以提高问题，采用大田试验方法，在典型地块开展了生产者常用的几种复（混）合肥基施对小麦的影响对比试验研究。结果表明，2种含有N、P、K三元素的复（混）合肥，较其他处理极显著提高了小麦产量和效益，其中N、P2O5、K2O配比为18-18-6的配方肥每公顷基施525 kg、675 kg，其产量、效益差异均不显著，但均比配比为15-20-5的配方肥增产达极显著，效益达显著；得出N、P2O5、K2O配比为18-18-6的配方肥比较适合永年县小麦土壤，适宜用量为每公顷基施525~675 kg。

In order to alter the producer’s blindness to the base fertilization of winter wheat, resolve the low yield of wheat caused by irrational fertilization, field experiment was carried out for comparing the effects of several common types of compond (mixed) fertilizer on winter wheat applied before seeding. The results were followed: 2 types of compond (mixed) fertilizer contented N, P and K increased the wheat yield and benefit significantly compared with the other types. Among which the compond (mixed) formula fertilizer with N-P2O5-K2O of 18-18-6 increased the wheat yield and benefit significantly compared with the N-P2O5-K2O of 15-20-5, but the two applying rates of 525 kg/hm2 and 675 kg/hm2 had no marked difference on yield and benefit. So the Compond (mixed) fertilizer with N-P2O5-K2O of 18-18-6 was well suit to Yongnian soil and wheat. The proper base applying rate was 525-675 kg/hm2.