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近些年来,棉花早衰现象日益严重,影响了棉花产量和品质,给棉农造成了一定损失,挫伤了植棉积极性。本文根据多年经验,分析总结了旱地棉早衰的几种主要原因,并提出采取综合措施加以预防。一、棉花早衰的原因早衰是棉株营养生长和生殖生长比例失调的生理反应。平原旱地棉田以夏旱严重年份或较瘠薄的老重茬棉田较为普遍。特别是5—6月份干旱少雨,气温较高,棉株发育早,伏前桃多,到7月份遇一次透雨,一些旱地和灌水不及时的棉田
In recent years, the phenomenon of premature aging of cotton is worsening, affecting the yield and quality of cotton, causing some losses to cotton farmers, dampening the enthusiasm of cotton planting. Based on many years of experience, this paper analyzes and summarizes several main reasons for the premature failure of dryland cotton and proposes to take comprehensive measures to prevent it. First, the reasons for premature aging Cotton is a cotton plant vegetative and reproductive growth of the imbalance in the physiological response. The plain dryland cotton fields are more common in the severe summer drought years or the barren old continuous cropping cotton fields. Especially 5-6 months of drought, the temperature is higher, the cotton plant early development, more than volt pre-volt, to a rainstorm in July, some dry land and irrigation is not timely cotton