高粱是我省主要粮食作物,播种面积较大,因此,在秋收当时,农活集中,时间紧迫,由于收获期不当,而造成很大的损失。收获过早,因籽粒中的干物质尚未积累完毕,使籽粒发育瘦小,反之,收获过晚则因自然落粒或遇雨增加呼吸强度,使籽粒减轻,严重时还会倒伏,引起籽粒发芽,造成产量和品质上的重大损失。 Sorghum is the main grain crop in our province with a large sown area. Therefore, at the time of autumn harvest, agricultural work was concentrated and time was running out. As a result of improper harvesting, great losses were caused. Harvest too early, because the dry matter in the grain has not yet accumulated, so that the development of small grains, on the contrary, the harvest is too late due to natural fall or rain to increase respiratory intensity, so that reduce the grain, severe lodging, causing the seeds germinate, Resulting in a significant loss of production and quality.