Promotion of Peanut (Arachis hypogaea L.) Growth by Plant Growth-Promoting Microorganisms

Brazil is an important peanut producer, but despite its high production, there still needs to be inoculant for the crop. In addition, use of microorganisms that promote plant growth (PGPM) not common, and this crop highly dependent on chemical fertilizers. An excellent alternative reduce fertilizers inputs in crops while reducing production cost environmental impact PGPM. The objective study was evaluate effects Azospirillum brasilense, Bacillus subtilis, Bradyrhizobium japonicum, Trichoderma harzianum as single inoculants co-inoculants promotion productivity peanuts greenhouse field conditions. greenhouse, experiment conducted with 12 treatments six repetitions. conditions, five four Both experiments were randomized blocks. general, all evaluated present promoted increases root dry mass, shoot phosphorus concentrations, height under conditions compared control. Interestingly, mixtures inoculated plants did greater development inoculations separately. Specifically, field, highest found inoculation B. japonicum alone. PGPM generally some