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为了适应当前棉花生产形势发展的需要,提高夏棉纤维品质,特将1978—1984年在延津县对夏棉栽培技术研究的结果报告于后。 (一) 夏棉和春棉的生育进程截然不同,表现为:1.播种期不同。春棉在4月15日前后,夏棉在5月25日前后播种,播期相差40天左右;2.苗期进程不同。春棉播种—出苗多在10天以上,夏棉只需5天时间;春棉出苗—现蕾多在50天左右,夏棉平均只有25天,苗
In order to adapt to the current situation of cotton production development needs and improve the quality of summer cotton fiber, special 1978-1998 in Yanjin County, summer cotton cultivation technology research results reported later. (A) Summer cotton and spring cotton fertility process is very different, as follows: 1. Sowing time is different. Spring cotton on April 15 before and after summer cotton on May 25 before and after sowing, sowing a difference of about 40 days; 2. Seedling process is different. Spring cotton sowing - the emergence of more than 10 days, summer cotton only 5 days; Spring cotton emergence - budding more in about 50 days, an average of only 25 days summer cotton, Miao