各植棉地区由于生态与生产条件的不同，棉花栽培技术体系各异，从主要的种植形式与配套措施可划分为三个基本类型，其中，密度与气候因素密切，且制约其它栽培技术措施，因此，可作为技术体系的标示特征。高密型：以美国、俄罗斯中亚国家、北非埃及和中国的新疆为代表，播... Due to the different ecological and production conditions, cotton cultivation technology system varies from cotton planting area to three basic types from the main planting forms and supporting measures. Among them, the density and climatic factors are close, and other cultivation techniques and measures are restricted, Therefore, it can be used as a mark of the technical characteristics of the system. High density: the United States, Russia, Central Asian countries, North Africa, Egypt and China, Xinjiang as the representative, broadcast ...