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1997～ 1999年我们在吐鲁番棉花站枯萎病病圃中 ,研究了棉田灌溉、铺膜及种植密度与棉花枯萎病发生的关系。研究表明 ,棉花枯萎病的发生与否主要决定于 5～ 10 cm的地温 ,棉田灌溉和棉花不同时期棉田日辐射量是影响 5～ 10 cm地温的主要因子 ,灌溉次数越多 ,棉田日辐射量越少 ,棉花枯萎病发生越严重。铺膜与否同棉花枯萎病无直接的相关关系 ,分析了表明同播种时间、土壤墒情具有密切关系。研究初步表明合理增加种植密度会减轻棉花枯萎病的危害。
From 1997 to 1999, we studied the relationship between irrigation, filming and planting density and the occurrence of cotton fusarium wilt in cotton fields of Turpan. The results showed that the occurrence of cotton fusarium wilt was mainly determined by the ground temperature of 5 ~ 10 cm. The main factors influencing the ground temperature of 5 ~ 10 cm were the daily irrigation amount of cotton field and irrigated cotton field at different periods. The more irrigation times, The less serious the cotton wilt disease occurs. There was no direct correlation between the filming and the cotton fusarium wilt. The analysis showed that it was closely related to the sowing time and soil moisture. Preliminary studies have shown that a reasonable increase in planting density will reduce the harm of cotton blight.