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棉田多熟制的发展成因及其关键技术陈立昶江苏泗阳棉花原种场２２３７００棉田多熟制是８０年代中期以来，在我国主要棉区尤其是人多地少、经济技术比较发达的地区，以提高植棉综合效益为目的而发展起来的新的棉田种植体系，是一种集技术、劳动、物资于一体的高度集约化的...
The reason for the development of multi-cropping in cotton field and its key technology CHEN Li-Chang Cotton seed field in Siyang City, Jiangsu Province 223700 Since the mid-1980s, the multi-cropping system in cotton field has been developed in the major cotton areas in our country, especially in the areas with more people and less land and with more developed economy and technology The new planting system for cotton which is developed for the purpose of improving the comprehensive benefits of cotton planting is a highly intensive one integrating technology, labor and materials ...