通过 1997～ 1998年对二棱大麦新品种单二播期、密度、氮肥用量、穗肥比例、磷肥用量等五因子二次回归正交试验结果表明 ,单二大麦在本地 10月 2 9日前后播种 ,基本苗 10万 /亩左右 ,群个体质量高 ,生育进程适宜 ,前期发苗好 ,穗数足 ,中期生长稳健 ,粒数较多 ,后期灌浆结实好 ,粒重高 ,易夺高产稳产 The results of quadratic regression with five factors, such as single second sowing date, density, nitrogen fertilizer amount, panicle fertilizer proportion and phosphate fertilizer amount, showed that the single barley had a significant difference between 1997 and 1998 Sowing, the basic seedlings about 100000 / mu, the group of individual high quality, suitable for the process of childbearing, the early hair seedling good, spike number of feet, medium-term growth and stability, more grains, grain filling and good late, high grain weight, easy to take high and stable yield