Crescimento e produtividade da cana-de-açúcar em função de bioestimulantes, microorganismos e nutrientes

Abstract

The importance of sugarcane cultivation in the Brazilian economy is unquestionable. Producers are increasingly adopting new technologies in order to make sugarcane fields more efficient, therefore, it is of paramount importance to understand the impacts of products such as biostimulants, macro and micronutrients, microorganisms and insecticide on sugarcane cultivation. In view of this, the objective was to evaluate the efficiency under field conditions, of biostimulants, macro and micronutrients, microorganisms and insecticide, on the biometric parameters and productivity of sugarcane of the RB92579 variety. The experiment was conducted from 02/04/2022 to 01/05/2023 at Fazenda Sinimbu, located in the municipality of São Miguel dos Campos, AL. For the realization of the experiment, a plot with 3 hectares was used and the RB92579 variety was planted. Three different treatments were applied: two commercial treatments (Biostimulus and chemical PH) and a standard treatment already used on the property. The experimental field was monitored on site from planting to harvest, with biometric evaluations (number of tillers, plant height and stalk diameter) and yield estimation carried out in each treatment throughout the crop cycle. The Biostimulus treatment obtained the highest mean number of tillers per linear meter (11.07), followed by the PH chemical treatment (10.67), both of which outperformed the conventional treatment. Stalk diameter was similar between treatments, however, the conventional treatment achieved the highest values. The highest plant heights were obtained with the use of the chemical PH treatment, followed by the Biostimulus treatment, with average values of 2.06 and 1.95 m. The Biostimulus and chemical PH treatments were superior to the conventional treatment used on the property. When comparing the Biostimulus with the conventional treatment, there was an increase of 16.64%, representing an increase of 12.34 tons per hectare. In the comparison between chemical and conventional PH, the increase in productivity was 11.36%. It is essential to conduct additional research to obtain a greater number of results in different crop years.

Keywords: Saccharum spp, Growth Regulators, Fertilizer.