玉米是我省主要粮食作物之一,播种面积和产量仅次于水稻居第二位,因此积极发展玉米生产,迅速提高玉米产量是我省粮食生产中的又一重要任务。构成玉米产量的每亩株数、每株果穗数、每穗粒数和粒重诸因素是在玉米一生中不同的生育阶段形 Corn is one of the main grain crops in our province, sowing area and yield second only to rice, so actively developing corn production and rapidly increasing corn output are another important task in our province’s grain production. The number of trees per acre, the number of ears per plant, the number of grains per head and the weight of grains that make up the corn yield are all different stages of growth during the life of the corn