In a farm trail to improve taba baan crop yield anI.! to reduce the productivity
cost, inoculation with EM and Compomax (2) beside Rhizobia were done. Plants
inoculated with EM combined with Rhizobia scored highest values of N, P and K, plant
uptake and plant dry matter at 45day, as well as this treatment gave the highest seed
yield and potassium plant uptel<.e at harvest. Inoculation with Compomax scored the highest nitrogen content of seed
and In soil at harvest. In general inoculation increased the soli microbial counts at
both 45 days period and at harvest. Increasing of mineral nitrogen decreased the soil
microbial counts, total counts and fungi at harvest compared to 45 dey. This work evoked thet mineral nitrogen could be reduced 10 50% of the
recommended dose for bean with the use or EM and Compomax besides Rhizobie
inoculetion.