Effects of microbial and organic bio inputs on growth and yield of vegetables of economic interest

Abstract

Microbial populations carry out important processes and benefits for plants, including direct activities such as biological nitrogen fixation, phosphate solubilisation, production of indole acetic acid, production of ACC deaminase and siderophores. This study aimed to evaluate the plant growth promoting effect on Capsicum annuum L. of the fungi Trichoderma sp, Bacillus cereus and organic biofertiliser. The evaluations were carried out under greenhouse conditions in which suspensions prepared from Trichoderma sp, and Bacillus cereus and organic bio-input were applied as suspensions, which were applied on seedlings of Capsicum annuum. The variables evaluated were plant length, dry weight of the parts areas, root length, dry weight of the root and stem diameter. The highest values found for the variables evaluated corresponded to the organic bio-input, followed by the bio-input prepared with Trichoderma sp fungus strains and finally the suspension with Bacillus cereus bacteria.