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掐尖打杈是作物的一项简单易行的增产措施,其主要目的就是调整株型,合理地调节植株体内营养物质的分配和运输,协调营养生长和生殖生长的矛盾,以减少养分的无谓消耗,对防止作物贪青徒长、促进早熟、提高产量、改善品质都有着重要的作用。在给作物掐尖打杈时,要避开湿度大的早晨和傍晚,更不能在阴雨天
Pinch twisting is a simple crop yield increase measures, its main purpose is to adjust the plant type, rational regulation of plant nutrients distribution and transport, coordination of vegetative and reproductive growth contradiction in order to reduce the useless of nutrients Consumption, to prevent crop growth and corruption, promote early maturity, increase production, improve quality all have an important role. In the crop pinch spire, to avoid the humidity of the morning and evening, but not on the rainy day