马铃薯黑痣病综合防控技术的集成

Integration of Prevention Technology for Control of Potato Black Scurf

近年来,由立枯丝核菌(Rhizoctonia solani Kühn)引起的黑痣病已成为内蒙古西部地区马铃薯生产上的重要病害之一,但目前还没有有效防控马铃薯黑痣病的综合措施。试验于2013年在内蒙古对马铃薯黑痣病综合防控技术进行了田间试验和优化集成。结果表明,底肥增施碳酸氢铵、碳酸氢钾,木霉菌浸种阴干后再用甲基硫菌灵拌种,播种时沟喷20%甲基立枯磷或25%嘧菌酯的综合处理对马铃薯黑痣病的防治效果显著。

In recent years, potato black scurf, caused by Rhizectonia solani KL^hn, has become one of the most important diseases in potato production in the western area of Inner Mongolia. However, there is no effective integrated technique for the control of potato black scurf. In 2013, a field experiment was carried out in Inner Mongolia to test the integrated control technique of black scurf, and the technique was optimized. The results showed that the integrated control technique had significant effect on potato black scurf control. There are four main parts in the integrated control technique. At first, the base fertilizer of ammonium bicarbonate and potassium bicarbonate was increasing applied; then, the liquid of Trichoderma was used to soak seeds; third, the seeds were dressed with Thiophanate-methyl; and finally, 20% Tolclofos-methyl or 25% Azoxystrobin were sprayed in furrow.