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为了适应机械化的需要和探索粮棉双高产的新途径,我们于1975—1977年在校内、外进行了小麦后直播棉花的多点试验。试种面积约16亩,皮棉亩产最低98斤,最高166斤,一般多在130斤左右。如1976年(武昌)3.05亩,亩产皮棉137.6斤,综合丰产田面积1.25亩,亩产163.2斤;1977年(天门)综合丰产田面积1亩,亩产126.6斤,接近套种棉产量水平。小麦后直播棉花由于播种迟,改变了生育条件,其生长发育特点明显地不同于套种棉。现根据试验结果,进一步分析这些特点,并提出相应的栽培技术措施,供参考。
In order to meet the needs of mechanization and to explore new ways of producing high yield of grain and cotton, we carried out multi-point experiments of cotton direct seeding in and outside the school from 1975 to 1977. Trial planting area of about 16 acres, lint mu yield minimum 98 pounds, up to 166 pounds, usually more than 130 pounds. Such as the 1976 (Wuchang) 3.05 mu, 137.6 kg of mu produce lint, comprehensive yield of 1.25 acres of mu plot, 163.2 kg per mu; 1977 (Tianmen) comprehensive yield farmland area of 1 mu, yield 126.6 pounds, close to the level of intercropping cotton. Post-wheat live broadcast of cotton due to late planting, changing fertility conditions, its growth and development characteristics significantly different from the inter-planting cotton. Now based on the test results, further analysis of these characteristics, and put forward the corresponding cultivation techniques and measures for reference.