Aspergillus spp. and Bacillus spp. as Growth Promoters in Cotton Plants Under Greenhouse Conditions

This study aimed to verify the potential of three Aspergillus and Bacillus species as growth promoters in cotton plants under greenhouse conditions. The experiment was conducted with a completely randomized design seven treatments (six microorganisms plus one control) five replicates until flowering stage at 70 days after emergence. inoculation velezensis (Bv188) subtilis (Bs248 Bs290) had positive effect on total nitrogen extraction (899.31, 962.18, 755.41 mg N/kg dry matter, respectively) compared control (459.31 weight), phosphorus (121.94, 124.31, 99.27 P/kg (65.10 matter), matter (41.08, 43.59, 49.86 g/plant, (26.70 g/plant), well biomass carbon (72.26, 35.18, 14.7 mg/kg soil, respectively). Cotton inoculated brasiliensis (F111), sydowii (F112), sp. ( versicolor section) (F113) higher (953.33, 812.59, 891.62 (122.30, 104.86, 118.45 (37.52, 37.41, 53.02 g/plant) greater respiratory activity (14.98, 10.43, 7.11 CO 2 /100 g (3.5 soil). fungi A. (F111) (F112) promoted absorption by plants, which reflected lower amount nutrients soil (7.10 16.96 P/dm 3 soil) than (26.91 results suggest that B. 248 an increase extracted from roots phosphorous compounds root increased value activity, this bacterium could be used inoculant crops.