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80年代以来,随着移栽棉的推广普及,直播棉捉苗难、早发难、晚桃多、产量低的问题得到了解决,是植棉技术的一大突破。当生产条件和肥水条件改善之后,又出现了苗床高脚苗,梅雨季节苗易旺长,株型高大,荫蔽重,脱落多,烂铃重等问题,不但制约了移栽棉的早发高产优势,而且限制了
Since the 1980s, with the popularization of cotton transplanting, the problem of direct seeding cotton seedling is difficult, early onset, late peach and low yield have been solved, which is a major breakthrough of cotton planting technology. When the production conditions and fertilizer and water conditions improved, the emergence of high seedling seedlings, rainy season Miao Yi prosperous, plant tall, shade heavy, shedding more, bad boll weight and other issues not only restricts the early high-yield cotton Advantage, but also limited