通过对早播棉 (提早播种 10～ 15d)与正播棉 (正常播期播种 )全生育期的对比考察 ,探讨早播育苗的效应。结果表明 ,在同等密度、同等栽培条件下 ,早播棉比正播棉单株铃数高 8%～10 %、衣分高 1%～ 1 5%、产量增 15%～ 2 0 % ;同时由于早播 ,棉花生育进程同步提早 ,各项栽培措施也须相应提前到位 The effects of early sowing seedling were studied by comparing the whole growth period of early sowing cotton (early sowing 10 ~ 15d) and fresh sowing cotton (normal sowing date). The results showed that under the same density and the same cultivation conditions, the yield of early-sowing cotton was 8% -10% higher than that of pure cotton sowing, the content of cotton was 1% ~ 15% and the yield was 15% ~ 20% As a result of early sowing, the process of cotton birth synchronization earlier, the cultivation measures must be in place accordingly