自七十年代后期,江苏省沿江棉区普遍推广了棉花塑膜棚架育苗。麦行套栽棉,一般较麦行直播棉增产二成以上。但这一地区人多地少,棉花育苗占地相当于棉田面积8～10%,加之麦行套栽棉花时对麦子有损伤,影响了夏粮产量。有鉴于此,不少棉农改棉花麦行套栽为麦后移栽,前茬麦子由宽幅条播改为满幅密播,一般麦子增产35%左 Since the late seventies, cotton production has been widely promoted in cotton fields along the Yangtze River in Jiangsu Province. Wheat line set of cotton, generally more than wheat line cotton livelihood more than 20%. However, there are fewer people in this area. Cotton seedling occupies an area equivalent to 8-10% of the area of ​​cotton. In addition, wheat is damaged when wheat is planted with wheat and affects the output of summer grain. In view of this, many cotton farming cotton line planted wheat transplanting wheat, wheat from the former broad-band broadcast to a full width-sowing, the general increase of wheat left 35%