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为了进一步研究不同播期对青稞农艺性状及产量的影响,更好地为青稞优质栽培提供科学依据,2015年在甘肃省天祝县开展了高寒阴湿山区青稞播期试验。结果表明,不同播期处理对青稞生育期、产量有一定的影响,4月13日播种的青稞折合产量最高,为7 541.6kg/hm~2,4月20日播种的青稞折合产量次之,为7 114.3kg/hm~2,而且这两个处理的青稞小穗数和单株粒数多、单株粒重和千粒重高,因此,综合生长期温度、产量等因素分析,天祝县青稞的最佳播期为4月13~20日,折合产量为7 114.3~7 541.6kg/hm~2。
In order to further study the effects of different sowing date on the agronomic characters and yield of the barley and to provide a scientific basis for the high-quality cultivation of the barley, in 2015, the sowing date test was conducted in Tianzhu County, Gansu Province. The results showed that different sowing dates had some effects on the growth and yield of barley. The highest yield of barley sown on April 13 was 7 541.6kg / hm ~ 2, the yield of barley sown on April 20 was the second, 7 114.3kg / hm ~ 2, and the number of spikelets per panicle and the number of single plantlets per plant and grain weight per plant and thousand-grain weight of the two treatments were high. Therefore, according to the analysis of factors such as temperature and yield during the growing season, The best sowing date was April 13-20, equivalent to 7 114.3 ~ 7 541.6kg / hm ~ 2.