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研究了5个栽培技术因素对啤酒大麦产量、粒重和蛋白质含量3个主要生产指标性状的综合效应。结果表明:适期早播(1O月13日-11月2日)、增加基本苗密度(6-22万/亩)、等量氮肥早施对籽粒产量有正效应,而对粒重和蛋白质含量有负效应;施氮量(20kg/亩以下)增加,产量和蛋白质含量都提高,粒重表现二次反应;基追氮肥比例的作用较不明显,仅有微弱的效应。不同条件下,产量与粒重均负相关;产量、粒重与蛋白质含量之间的相关因所考虑的因子而定。各个因子的综合效应大小依次为:施氮量>播期>施氮时期>基本苗密度>基追氮肥比例。
The effects of five cultivation techniques on the yield, grain weight and protein content of barley in three main productive traits were studied. The results showed that: the early sowing date (October 13 - November 2), increasing the basic seedling density (6-22 million / acre), the same amount of nitrogen application had a positive effect on grain yield, grain weight and protein The content of nitrogen increased (20kg / acre below), the yield and protein content increased, the grain weight showed secondary reaction; the effect of base-topdressing nitrogen ratio was less obvious, with only a weak effect. Under different conditions, the yield and grain weight were negatively correlated; the correlation between yield, grain weight and protein content was due to the factors considered. The overall effect size of each factor was as follows: nitrogen application rate> sowing date> nitrogen application period> basic seedling density> basal nitrogen recovery rate.