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将麦后移栽棉开花期分成四个时段:7月31日以前、8月1～15日、8月16～31日及9月1～10日。灰色关联分析表明,1988、1989年均以8月1～15日的成铃速率(个/亩/日)对亩有效铃数的关联程度最大。因此,提高8月1～15日成铃速率是麦后移栽棉增加亩有效铃数的关键。 密度对8月1～15日成铃速率有明显的调节效应。1988、1989年均以4600～4800株/亩左右,8月1～15日成铃速率最大,因而产量也最高.在一定密度范围内,8月1～15日成铃速率取决于每亩总光合面积和总光合生产量。
Transplanting wheat transplanting cotton flowering period is divided into four periods: before July 31, August 1 to 15, August 16 to 31 and September 1 to 10. Gray correlation analysis showed that the correlation between the number of effective bell bolls per acre (km / acre / day) and the effective bell number of acreage was the highest in 1988 and 1989 respectively from August 1 to August 15. Therefore, to improve August 1 to 15 boll rate is the key to increase the effective number of acres of cotton after transplanting cotton. The density of August 1 ~ 15 into the bell rate has a significant regulatory effect. 1988 and 1989 are 4600 ~ 4800 plants / mu, August 1 to 15 the highest rate of bolls, and therefore the highest yield in a certain range of density, August 1 to 15 bells rate depends on the total acre Photosynthetic area and total photosynthetic production.