秋分(9月23日)前后,各种农作物相继成熟,挥镰收割开始。伤镰,就是收获过早。种子中的营养物质积累尚未完全停止,其营养物质的转化过程也没有全部完成,因此必然影响产量,降低品质。落镰,就是收割过晚。这会造成倒伏、炸荚、折穗和落粒损失,甚至有穗上发芽现象。特别是谷子、苏子、芝麻、糜子等易落粒作物,落镰损失相当严重。如果成熟期风多、雨多,落镰损失就会更加惊 Before and after the autumn equinox (September 23), all kinds of crops have matured one after another, and the sickle harvest began. Sickle sickness, is harvested too early. The accumulation of nutrients in seeds has not stopped completely, and the conversion process of nutrients has not been fully completed, which inevitably affects yield and reduces quality. Fallen sickle is harvesting too late. This can cause lodging, fried pods, broken ears and falling debris, and even germination on ears. In particular, millet, Suzi, sesame, millet and other easily falling crops, sickle sickness loss is quite serious. If the maturity of the wind, rain, sickle loss will be even more scared