The control effect of a multifunctional bacterial agent fit for straw amendment against wheat soil-borne diseases

Shan LI, Yongsheng ZHANG, Yanan WANG, Chunqi LIANG, Wenchao ZHEN

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Front. Agric. China ›› 2011, Vol. 5 ›› Issue (3) : 305-309. DOI: 10.1007/s11703-011-1116-0
RESEARCH ARTICLE
RESEARCH ARTICLE

The control effect of a multifunctional bacterial agent fit for straw amendment against wheat soil-borne diseases

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Abstract

Soil-borne diseases of wheat are getting more and more serious in the wheat/maize rotation growing system in northern China. A multifunctional microorganic strain called B1514 was found to have an inhibitory effect against major pathogens of winter wheat soil-borne diseases, have the ability to decompose maize straw, and have the ability to utilize the straw for multiplication. The strain was processed into bacterial agent HAD-1. Field experiments were conducted from 2008 to 2010 to test the control effect of HAD-1 on the major wheat soil-borne diseases, on decomposing ability to maize straw, and on reproductive capacity. Results showed that HAD-1 had significant control effects on sharp eyespot, take-all, and root rot on wheat. The control efficacy at wheat jointing stage was 59.63% to 72.59%, 57.64% to 59.29%, and 54.48% to 63.25%, respectively. The yield loss decreased by 8.67% to 11.70%. The population numbers of the strain B1514 increased 2.68×107–4.83×107 times during the wheat growing season. HAD-1 significantly accelerated the decomposition rate of maize straw in the soil. The decomposition rate increased by 18.7% to 24.3% during wheat growing season.

Keywords

Straw amendment / bacterial agent / winter wheat / soil-borne disease / bio-control

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Shan LI, Yongsheng ZHANG, Yanan WANG, Chunqi LIANG, Wenchao ZHEN. The control effect of a multifunctional bacterial agent fit for straw amendment against wheat soil-borne diseases. Front Agric Chin, 2011, 5(3): 305‒309 https://doi.org/10.1007/s11703-011-1116-0

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Acknowledgements

This research was financially supported by the National Scientific & Technological Support Project (No. 2011BAD16B08).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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