试验选择目前在农作物上应用具有代表性的 4种生化制剂 ,采用随机区组设计试验方法 ,对大麦种子进行播前拌种处理。结果表明 :拌种处理后能够有效促进生育中前期根系的发育和冬前分蘖的形成 ,有效提高成穗数 ,争得足穗 ,提高产量。能够提高抗冻、倒、衰等灾害能力 ,特殊年份尤为明显。但对出苗有一定的抑制作用 ,速度慢、出苗率低 ,增产效果均不十分突出 Test Selection At present, four representative biochemicals are applied to crops. The randomized block design and test methods are used to seed the barley seeds before sowing. The results showed that the treatment of seed dressing could effectively promote the development of root system and the formation of tillering before winter, and effectively increase the number of panicles, scramble spike and increase the yield. Can improve the frost resistance, down, failure and other disasters, especially for the special year. But the emergence of a certain inhibitory effect, slow, low rate of emergence, the effect is not very prominent yield