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棉苗根病(立枯病、炭疽病等)是影响我省棉花全苗和壮苗的重要因素之一。由于棉苗病害为害严重,常造成缺苗断垄,甚至重播还不能保证全苗;严重影响棉苗健壮生长。1973年鄢陵县城关公社程岗大队棉苗根病的发病率为79%,死苗率为13%;后期田间缺株10%左右,对棉花产量影响很大。因此必须加强对棉苗根病的防治研究。过去我国曾研究出用“五西合剂”、“五赛合剂”、“西力生”或“赛力散”拌种,有较好的防治棉苗根病的效果。但由
Cotton seedling root blight (blight, anthracnose, etc.) is one of the important factors affecting cotton seedlings and strong seedlings in our province. As a result of serious damage to cotton seedling disease, often resulting in missing seedlings broken ridge, or replay can not guarantee the whole seed; seriously affect the robust growth of cotton seedlings. 1973 Yanling County Chengguan commune Cheng Gang brunches cotton seedling root disease incidence of 79%, dead seedling rate of 13%; late field of about 10% of the plant, a great impact on cotton production. Therefore, we must strengthen the prevention and treatment of cotton seedling root disease. In the past, China has studied the use of “Wu Xi Mixture”, “Wu Sai Mixture”, “Xi Lisheng” or “Sai Li San” seed dressing, a better prevention and treatment of cotton seedling root disease effect. But by