PRODUTIVIDADE DO ALHO EM FUNÇÃO DA APLICAÇÃO LAMINAR DE BIOINSUMOS

Abstract

Virus transmitters, such as Thrips tabaci (Thysanoptera: Thripidae), prevent garlic plants from obtaining high yields in Brazil and worldwide. Sustainable and integrated control technologies such as Beauveria bassiana and Potassium Silicate (K2SiO3) can synergistically combat this type of biotic stress. Such components are still underused in the phytosanitary management of garlic cultivated in the Cerrado biome. The objective was to evaluate the effect, alone or in combination, of these technologies on productivity in garlic plants, for three consecutive seasons (2017, 2018 and 2019). The treatments (T1) Beauveria bassiana - Bb, (T2) Potassium Silicate - SilK, (T3) Chlorfenapyr - insecticide/acaricide, (T4) Bb+SilK (under binary tank mixing) and (T5) absolute control (water only ) were arranged in a DBC with four replications per season. Production parameters in terms of quantity (kg ha-1) and quality (commercial sizes of bulbs) of garlic were also quantified, for each crop, as a function of the treatments, at the end of the production cycle. The binary mixture between Bb+SilK was the only treatment, after three consecutive years of use, which promoted an increase in the production in quantity (ton ha-1) of garlic and, finally, an increase in the production in quality (more profitable calibers) of the garlic. garlic plants.