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１９８９—１９９２年，在广东省部分县市进行了小麦、王米施用耐氨固氮菌大田对比试验，小麦接种耐氨固氮菌后，接菌区小麦的穗氏、有效穗、每穗粒数均比不接菌区明显增加，株高、成穗率、千粒重比对照略有增加，平均每亩比对照增产１６．７ｋｇ干麦，平均增产率为８．１％。玉米接种耐氨固氮菌后，接菌区玉米的茎粗、收获时的青叶片数、单苞重均比对照区明显增加，秃顶度比对照区明显减小，晒干率：出米率略有增加，平均每亩比对照增产５２．８ｋｇ玉米，平均增产率为１１．８９％。
1989-1992 years in Guangdong Province in some counties were wheat, Wang Mi nitrogen ammonia-resistant bacteria field contrast test, wheat inoculated with ammonia-resistant Azotobacter, inoculated wheat spikelet, effective panicle, grains per spike The ratio of plant height, spike rate and 1000-grain weight increased slightly compared with the control. The average yield of 16.7kg dry wheat per acre was increased by 8.1% compared with the control. Azotobacter resistant to Azotobacter after inoculation, the inoculation area of corn stem diameter, the number of leaves at harvest, the weight of single bud significantly increased compared with the control area, the baldness was significantly lower than the control area, the sun drying rate: the rate of rice slightly There was an increase of 52.8 kg of corn per acre compared with the control, with an average yield of 11.89%.