我国是世界上有悠久植棉历史的国家。棉花生产及其种植技术的发展经历了约2000余年的漫长历程,直到新中国建立前仍处于一个很低的水平,只是近40年中获得了长足的进展。建国以来,我国棉花种植面积,皮棉总产和单产都获得了大幅度增长。1949年全国 Our country is a country with a long history of cotton-growing in the world. The development of cotton production and its cultivation technology has gone through a long course of about 2,000 years and it was not at a very low level until the founding of New China. Only the progress made in the past 40 years has been made. Since the founding of the People’s Republic, China’s cotton acreage, lint yield and yield have gained substantial growth. 1949 nationwide