新疆是我国重要的优质棉基地 ,棉花生产已成为新疆国民经济的支柱产业 ,在促进新疆经济的发展 ,提高农民收入方面具有不可替代的作用。北疆棉区是新疆第二大棉区 ,突出的气候特点是春季气温回升慢 ,且不稳定 ,秋季气温下降快 ,无霜期短。由于植棉面积大 ,长年连作 ,棉花枯黄萎 Xinjiang is an important high-quality cotton base in our country. Cotton production has become the pillar industry of Xinjiang’s national economy and plays an irreplaceable role in promoting the economic development of Xinjiang and increasing the income of farmers. The northern cotton area is the second largest cotton area in Xinjiang. The prominent climatic characteristics are that the temperature in spring rebounds slowly and is unstable, the temperature in autumn falls rapidly, and the frost-free period is short. As cotton area, for many years continuous crop cotton withered