通过温室试验的防效、促生、叶片中叶绿素含量和N、P、K含量的影响，多方面评估生物农药“蔬得康”（由两株芽孢杆菌和一株沙雷氏菌株组成）对西瓜细菌性果斑病的生防潜力。结果表明，生物农药“蔬得康”在温室中防效达到了40.8%，也使西瓜苗期的生物量增加了51.0%，叶绿素a、叶绿素b和叶绿素总量均明显高于清水对照组，分别提高了13.4%、46.2%和21.3%，同时也使叶片中N、P、K的含量分别提高了22.5%、36.4%和29.0%。%Biocontrol effects of biopesticide“Shudekang”which is composed of two strains of Bacillus and one strain of Serratia on bacterial fruilt blotch (BFB) of watermelon was evaluated under greenhouse conditions through some parameters such as biocontrol efficacy, biomass, content of chlorophyll and nutritional elements in watermelon leaves. Results showed that biocontrol efficacy was 40.8%and the biomass of watermelon seedlings increased about 51.0% in the “Shudekang” treatment compared to the control. The contents of chlorophyll A, chlorophyll B, total chlorophyll and N, P, K in the leaves of watermelon seedlings were also increased in“Shudekang” treated plants, and the increase rate were 13.4%, 46.2%, 21.3% and 22.5%, 36.4%, 29.0%, respectively.
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