南方棉区,从播种到出苗,一般多阴雨连绵,土壤水分过多,且寒潮频繁,温度不稳定,加上两熟套种行间荫蔽,湿度大,土温低,往往延迟棉子发芽出苗期,甚至烂种、死苗。但也有个别年份,因干旱也会影响棉子的发芽出苗。 Southern cotton, from sowing to emergence, generally more rainy and continuous, the soil is too much water, and frequent cold, temperature instability, plus two sets of intercropping shade, humidity, soil temperature is low, often delay the germination of cotton seedling Even rotten species, dead seedlings. But there are also individual years, due to drought will also affect the germination of cotton seedlings.