麻山药根腐病发生规律及其防治技术

Occurrence Law and Control Technology of Root Rot of Yam

通过田间调查和药效试验,明确了麻山药根腐病的发生规律。结果表明:"10亿芽孢/g枯草芽孢杆菌可湿性粉剂"对麻山药根腐病的有效剂量为15 kg/hm2,平均防治效果70.34%,显著高于对照药剂敌克松的防效(20.26%),说明其对麻山药吸收根具有显著刺激生长作用。

Through field investigation and efficacy test,defined the occurrence law of root rot of yam.The results showed that the microbial fungicide＂one billion spores per gram bacillus subtilis WP＂ was applied as the seed treatment in control root rot of yam by 15 kg/hm2.It showed that its control efficiency（70.34%） was significantly better for bacillus subtilis WP treatment compare to fenaminosulf（20.26%） showed it＇s could stimulated yam absorbing root growth.