[Objective]The aim was to explore the application effect of microbial agents produced by Liaoning Deshen Microbial Technology Co.,Ltd.on food crops and vegetables.[Method]With conventional fertilization as control,the effects of Deshen brand microbial agents on the yield components of rice,tomato and pepper in Chengde area were studied.[Result]The application of the microbial agent effectively increased the yield of the three crops,among which the rice yield was 6.56 t/hm2,an increase of 17.56%.The yield of tomato was 12.50 t/hm2,increased by 20.05%.The yield of pepper was 3.95 t/hm2,an increase of 5.17%.[Conclusion]The microbial agent is suitable for popularization and application in the green and high-yield cultivation of food crops and vegetables in the north.
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