[Effects of biological agent dripping on cotton Verticillium wilt and rhizosphere soil microorganism].

Biological agent is an important green pathway to control Verticillium wilt. A field experiment was performed to examine the effects of Bacillus subtilis agent (15, 30 and 45 kg·hm), Trichoderma humatum agent (15, 18 and 24 kg·hm), 'Yufeng 99' agent (15, 22.5 and 30 kg·hm) and Zhongnonglyukang agent (30, 45 and 60 kg·hm) on cotton Verticillium wilt and soil microbial community.