在批林整风运动推动下,一九七三年黄河流域棉区各省、市为共同鉴定近几年育成表现优良并已开始示范的棉花新品种和国外引进的优良品种,明确其丰产性能、适应范围和纤维品质,迅速决选出最优良的品种,提供繁殖推广,扩大良种利用,提高棉花产量,经统一布置,协作进行试验。协作单位有北京、河北,山西、陕 Driven by the campaign to rectify forests and rectify winds, in 1973, the provinces and municipalities in the cotton area of ​​the Yellow River Basin jointly identified new varieties of cotton and fine varieties imported from abroad, which have been bred well in recent years and have begun to be demonstrated. Range and fiber quality, quickly select the best varieties, provide breeding promotion, expand the use of improved varieties, improve cotton production, the unified layout, collaboration test. Collaboration units in Beijing, Hebei, Shanxi, Shaanxi