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根据北京市延庆区的特点,开展适宜籽粒直收的春玉米品种筛选试验,检测机械收粒作业质量、不同品种生育期、收获期籽粒含水率、各品种倒伏率、空秆率和产量等指标,综合筛选延庆区适宜籽粒直收的玉米品种。结果表明:结合产量和机械收粒作业质量综合评价,郑单958成熟期晚,产量最高,长势良好,适宜晚收,可实现机械收粒作业;MC703成熟期早,产量较高,虽然空秆率较高,但可通过栽培措施调控,降低空秆率,适宜中晚收,可实现机械收粒作业。
According to the characteristics of Yanqing District in Beijing, this experiment was carried out to screen spring maize varieties suitable for straight grain harvest, to test the quality of mechanical grain harvesting, the growth stages of different varieties, the grain moisture content during harvest, the lodging rate of various varieties, the empty stalk rate and yield , A comprehensive screening of corn varieties suitable for direct grain harvest in Yanqing District. The results showed that Zhengdan 958 had the highest yield and good growth rate at late mature stage, which was suitable for late harvesting. The mechanical harvesting operation could be achieved. MC703 had earlier maturity and higher yield. Although the empty stalk Higher rates, but through cultivation measures to control and reduce the empty stalk rate, suitable for late harvest, mechanical harvesting operations can be achieved.