枯草芽孢杆菌防治棉花黄萎病试验示范效果初报

Preliminary Study on Bacillus Subtilisagainst Verticillium Wilt on Cotton

枯草芽孢杆菌1 000亿芽孢/g可湿性粉剂是德强生物股份有限公司研发的一种新型生物制剂,近年兵团结合棉田加压滴灌系统,在棉花常年连作的10个示范点,开展了该药剂的大田滴灌施药试验示范,多点试验结果表明,枯草芽孢杆菌使用剂量100g/667m^2,滴施2~3次,对棉花黄萎病平均防效达51.42%,增产幅度13.48%,在棉花上表现出较好的防病和增产效果。

The wettable powder of Bacillus subtilis is a novelbiological fungicide developed by De Qiang Biological Co.Ltd.,with the ai content of 100 billion spores pergram.Recently,Xinjiang Production and Construction Corps selected ten demonstration sites where cotton has been planted for 10 years consecutively,and conducted the field experiments to investigate the effect of this product on cotton Verticillium wilt,integrated with the pressurized drip irrigation system.The results of the multi-site trialsindicated that the average control effect was 51.42%,and the cotton yield increased by 13.48%while applying at the rate of 100g/mu by drip irrigation for 2 to3 times.