本文在总结分析多点试验资料的基础上,探讨了施用氮肥和磷肥对旱地莜麦的增产效果和旱地莜麦氮磷适宜配合比例。为了在生产中便于应用,分析了无肥区产量(y)与经济产量下每亩三料磷肥用量(A)的关系,得出了经验公式,A=7.6+0.0667y-0.00017y~2 n=1.1 r=0.7227 Based on the analysis of multi-point experimental data, this paper discussed the effects of nitrogen and phosphorus fertilizers on the yield-improving effect of dryland barley and the suitable proportion of nitrogen and phosphorus fertilizer on dry land. In order to facilitate the application in production, the relationship between yield (y) in no-fertilizer area and the amount of phosphate fertilizer per acre (A) under economic yield was analyzed. The empirical formula was obtained, A = 7.6 + 0.0667y-0.00017y ~ 2n = 1.1 r = 0.7227