Ensaio com inóculos de Trichoderma asperellum e lodo ativado em Triticum sp.

Abstract

The use of agricultural inputs for large scale production by the traditional agriculture is concerning the population about its effects and, consequently, it is fomenting researches in the field for alternatives that increase de agriculture production without harming the environment and the human health. This study aims to evaluate different concentrations of Trichoderma asperellum inoculums and activated sludge in the germination and growth of a wheat crop, as growth generators. The experiment was divided into two stages, by adopting a design experiment (4x5) and (4x4). The experiment used distilled water and an Trichoderma asperellum inoculum in experimental conditions and, besides these, concentrations of activated sludge in the cultivation. The analyzed variables were germination rate (BT), germination speed index (GSI), average germination time (UTC), fresh biomass of aerial, roots and seedling parts, dry biomass of aerial, root and seedling parts, plant height and number of leaves per plant. In the experimental conditions and cultivation, it was possible to observe that the experiments containing the Inoculum had a better result than the control one, with average rates of 95% of success. It was noted a significant difference in the fresh and dry mass variables of the aerial part, which indicates a raise in the accumulation of plant biomass, such that the experiment with 1% of Inoculum presented the best return. The chosen concentrations of activated sludge were not ideal, and when added with the Inoculum, it is possible that it has stopped or slowed up the plant germination. By all the results, it was possible to conclude that the Inoculum with Trichoderma asperellum has promoted a growth of the wheat crop, by increasing the biomass of the aerial part of the plant.