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