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玉米地膜覆盖栽培技术是提高玉米单产的重要技术措施,但地膜玉米由于播种深浅不匀、气候干旱、种子质量等原因,造成出苗不齐,将来势必造成高矮不匀,出现生长极不均衡的现象,以致大苗欺小苗,弱小苗通风透光不好,个体发育不良,易发生病虫害,造成空秆和缺粒严重现象。因此因地制宜地防治玉米小苗、弱苗,做到充分利用
Corn plastic film mulching cultivation technology is to improve the yield of maize is an important technical measure, but the maize mulching due to uneven depth, arid climate, seed quality and other reasons, resulting in emergence of uneven, the future is bound to result in uneven height, the phenomenon of extremely uneven growth , So that seedlings bully small seedlings, weak seedling poor ventilation and poor, poorly developed individuals, prone to pests and diseases, resulting in a serious shortage of empty stalks and grain phenomenon. Therefore, according to local conditions to prevent corn seedlings, weak seedlings, so make full use of