Respuesta del maní (Arachis hypogaea L.) a la aplicación combinada de bioestimulantes microbianos y no microbianos.

In Cuba, peanut planting and yield are low and produced with limited inputs. The use of biostimulants in cultivation could constitute an innovative alternative to counteract this problem. In the country, there is little research that addresses the issue. The aim of this work was to evaluate the effect of the combined application of microbial and nonmicrobial biostimulants on peanut nodulation and growth. Inoculation tests were carried out under controlled conditions where inoculants of two strains of rhizobia were applied as well as formulations based on these strains and Pectimorf®. A completely randomized design was used and 45 days after sowing, nodulation, biochemical and growth variables were evaluated in peanut plants. The results showed that the application of inoculants based on the Rhizobium sp. C145 in combination with Pectimorf® increased the dry mass of the nodules, the relative content of total chlorophylls, the stomatal conductance, the content of nitrogen and phosphorus, as well as the height of the plants, the root length and the number of flowers . This research is the first evidence in Cuba that proves the positive effect of the combination of bacterial inoculants with Pectimorf® in the cultivation of peanuts. [ABSTRACT FROM AUTHOR]