论文部分内容阅读
棉花地膜覆盖栽培,我国是从1976年开始试验的,到1983年全国已大面积示范、推广。在生产实践中,已充分显示出棉花采用地膜覆盖栽培的优越性。是实现棉花生产增产增收的一项新的栽培技术。据我省棉花科学研究所统计,地膜覆盖较露地棉花,每亩可增加纯收入50元左右。因此,地膜覆盖栽培棉花的推广范围,不仅限于北方棉区,在无霜期较长的长江中、下游地区也同样是适宜的。但从经济效益考虑,笔者认为,我省首先宜在灌溉条件较差的丘陵红壤棉地推广应用,这样较易获得成功。在平原洲地和水稻田植棉的地区,如果能把地膜覆盖与传统的精耕细作结合起来,对于提高这些地区棉花产量是十分有利的。总之,地膜植棉在长江中、下游棉区是很有推广前途的科学成果。
Cotton mulching cultivation, our country started from 1976 experiments, to 1983 the country has a large area demonstration and promotion. In the practice of production, cotton has been fully demonstrated the advantages of plastic film mulch. It is a new cultivation technique to increase production and income of cotton production. According to the statistics of our province Cotton Science Research Institute, mulching more open field cotton, per acre can increase net income of about 50 yuan. Therefore, the coverage of mulching cotton cultivation is not limited to the northern cotton area, the middle and lower reaches of the Yangtze River is also appropriate in the long frost-free period. However, from the perspective of economic benefits, the author believes that the province should first of all be better in the hilly red soil cotton irrigation areas to promote the use of less likely to be successful. In areas of plains and paddy fields where cotton is planted, combining mulch with traditional precision farming is very beneficial for increasing cotton production in these areas. In short, the cotton film mulching in the Yangtze River, the downstream cotton area is a great promotion of scientific achievements.