在棉花生产中,适期早播,可以促使棉花早发,获得高产。但是棉花生长发育需要一定的温度条件,棉籽在温度12℃以上时,才能正常发芽。我县5厘米地温,多年平均在4月10日才能稳定通过12℃。4月中、下旬由于连阴雨天气多,≥4天连阴雨天气的年分约占50％,特别是4月第6候,正值棉籽出苗之际, In cotton production, early sowing is suitable, which can prompt cotton to get early and obtain high yield. However, the growth and development of cotton requires certain temperature conditions. When cottonseed is above 12 ℃, it can germinate normally. 5 centimeters in my county ground temperature, years of average in April 10 to be stable by 12 ℃. In mid-April, due to more rainy weather in late April, ≥4 days even with rainy weather, about 50% of the year, especially in the sixth quarter of April, just as cottonseed emergence,