Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2022, Vol. 12 ›› Issue (7): 17-20.doi: 10.11923/j.issn.2095-4050.cjas2020-0253

Special Issue: 生物技术 油料作物

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Rape Clubroot in Anning: Biocontrol Techniques

PAN Wenzheng1(), WANG Bin2, ZHANG Qi1, MAO Minglin2, LI Cheng2, ZI Wenlin3()   

  1. 1Yunnan Yunye Fertilizer Co., Ltd., Kunming 650217, Yunnan, China
    2Yunnan Microbial Fermentation Engineering Research Center Co., Ltd., Kunming 650217, Yunnan, China
    3Yunnan Yunzhiye Biological Technology Co., Ltd., Anning 650300, Yunnan, China
  • Received:2020-11-19 Revised:2021-04-13 Online:2022-07-20 Published:2022-09-20
  • Contact: ZI Wenlin E-mail:2456801755@qq.com;522688597@qq.com

Abstract:

The aims are to explore the new biological control model of rape clubroot in Anning, and to study the effect of biocontrol strains on rape clubroot. The research is carried out through a plot test with direct application of the biocontrol functional strains, and adding the biocontrol functional strains to organic fertilizer or substrate application. The results showed that: the biocontrol functional strains could effectively reduce the occurrence and damage of rape clubroot. The control effect was 74.03% on rape clubroot when biocontrol functional strains were directly applied, 83.12% when the strains were added to organic fertilizer, 68.83% when the strains were added to substrate, and 89.61% when the chemical control was used. Adding biocontrol strains to organic fertilizer which was decomposed and fermented from rape straw could achieve the best control effect on rape clubroot, and promote the growth and development and the yield of rape. Compared with conventional fertilization, the plant height, the effective branch number and the yield were increased by 7.63%, 26.08% and 16.81%, respectively.

Key words: clubroot, rape, biological control, functional bacteria, organic fertilizer

CLC Number: