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棉花花铃期稳长的长势长相如何?

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2021-12-26 22:09
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正确答案

花铃期稳长的长势长相为:新根增加,叶色鲜绿,花冠肥大,带桃入伏,三桃齐结,稳长7月,嫩过8月,9月不早衰。初花期前后株高增长达到高峰,主茎日长量为2~2.5cm,不超过3cm;盛花期主茎日长量为1~1.5cm,打顶前降至0.5~1cm。初花期叶面积系数达2~3,盛花期以4~4.5为宜。花铃期要求2~3天长出一层果枝,单株日增蕾0.3~0.5个,成铃数应占70%以上。在管理上,应结合长势长相进行分类管理。


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