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通过对麦棉套作物候变化的研究,找出了麦棉套作的合理类型:以粮为主兼顾棉花,宜采用窄空带类型,小麦占地面积60％以上,预留空带宽53～72cm;粮棉兼顾型以单位面积产值为目标,宜采用宽空带类型,小麦占地面积50％左右,麦棉间距26.4～36.3cm,预留空带宽103～122cm(棉花窄行距为50cm)。
By studying the crop phenology of wheat - cotton sheaths, the reasonable type of wheat - cotton sheaths was found out: taking the grain as the main factor and taking into consideration the cotton, the narrow space zone should be adopted. The area of wheat covers more than 60% and the empty space is reserved for 53 ~ 72cm. Both grain and cotton should take the wide belt type, the area of wheat should be about 50%, the distance between wheat and cotton should be 26.4 ~ 36.3cm, and the empty space should be reserved for 103 ~ 122cm (narrow row spacing of cotton is 50cm).