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对北京、东北、天津等地微生物肥料进行的盆栽、田间对比试验结果表明，５种微生物肥料在改善作物农艺性状，提高产量及经济效益上均表现出一定的效果，其中北京“中合牌”生物菌肥增产效果最明显，在几种作物中每ｈｍ２增产６．７１～９１．４０ｔ，产投比８．９２～２１．５０∶１，是适合于天津市农业生产的一种低投入、高产出的优质微生物肥料。
The results of field experiments on microbial fertilizers in Beijing, Northeast China and Tianjin showed that five kinds of microbial fertilizers showed some effects on improving crop agronomic traits, yield and economic benefits. Among them, Beijing “Zhonghe Brand” Bio-bacterial fertilizer yield the most obvious effect, in several crops per hm2 yield 6.71 ~ 91.40t, production and investment ratio of 8.92 ~ 21.50: 1, is suitable for a low-input agricultural production in Tianjin, High-yield high-quality microbial fertilizer.