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农作物的收获时间是否恰当,对作物的产量、品质影响很大。如大豆收获过晚,茎秆脆易折断,荚果炸裂,造成减产,籽粒含油率也较适时收获的降低;玉米收获过早,籽粒干物质积累少,千粒重降低,苞皮紧,扒皮难,脱粒时籽易碎,造成减产;高粱收晚了,茎秆易倒折,籽粒脱落和呼吸消耗,而影响产量。因此,必须掌握作物的最佳收获期,结合天气情况,适当安排作物收获顺序。下面介绍几种旱田作物适宜收获期的特征。
Crops harvest time is appropriate, the crop yield, quality a great influence. Such as the late harvest of soybeans, brittle stem easily broken, pods burst, resulting in reduced production, grain oil content is more timely harvest to reduce; corn harvest early, dry matter accumulation less grain, 1000-grain weight reduction, bast tight, When the seeds fragile, resulting in reduced production; sorghum late, stalk collapse, grain loss and respiratory consumption, and affect the yield. Therefore, we must grasp the best harvest of crops, combined with weather conditions, the appropriate arrangements for crop harvest order. Here are some characteristics of suitable harvesting date for dryland crops.