棉花是我县的重要经济作物之一,出苗率的高低直接影响着产量和经济效益。近年来,推广种植的包衣抗虫棉,大部分农民还是运用常规性的种植方法,结果造成了出苗率低,苗期立枯病和炭疽病危害严重,造成大田缺苗断垄,直接影响了棉花产量。为改变不包衣,温水浸种的种植方法,找出一条适合包衣抗虫棉直播种植的最佳时期。笔者对包衣抗虫棉作了最佳播期的试验研究,以达到一播全苗、壮苗早发提高产量的目的。 Cotton is one of the important cashmere crops in our county. The emergence rate of cotton directly affects the output and economic benefits. In recent years, the popularization of the planting of pest-resistant cotton, the majority of farmers or the use of conventional methods of planting, resulting in the emergence of a low rate of seedling blight and anthrax serious damage, resulting in lack of seedling mulching field, a direct impact Cotton production. To change the uncoated, warm water soaking cultivation methods to find a suitable for the best time for direct planting cotton seed coating. The author made the best sowing date on the pest-resistant cotton, in order to achieve the goal of improving the yield of seedlings and seedlings.