Co-application of dazomet and azoxystrobin reconstructs soil microbial communities and suppresses the violet root rot of Codonopsis tangshen under a continuous cropping system
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Codonopsis tangshen is an important medicinal plant in China, but it suffers from a serious fungal disease called violet root rot when grown repeatedly in the same soil. Researchers found that treating soil with dazomet fumigant followed by azoxystrobin fungicide completely eliminated this disease while dramatically increasing plant yields. The treatment works by reducing the harmful fungus while promoting growth of beneficial soil microbes that naturally suppress disease.