Recursos › Estudos de campo › Culturas de fibras › Algodão (Sinop, MT, Brasil, via foliar)

Cotton (Sinop, MT – Brazil)

Instituição de pesquisa: NEMABIO, Pesquisa agronômica
Pesquisador : Dr. Claudinei Kappes
Data: 2022/23 e 2023/24
Local: Sinop, MT – Brasil
Variedade da cultura: TMG 44 B2RF
Solo: Dystrophic Red-Yellow Latosol (Oxisol) containing clay (49,8%), sand (32,5%), and silt (17,7%)
pH do solo: 5,7 (CaCl2)
Informações adicionais sobre o solo: OM 24,3 g/dm³; P 28,9 mg/dm³; K 91,6 mg/dm³ S 25 mg/dm³; Ca 4,1 cmol_c/dm³; Mg 1,6 cmol_c/dm³; B 0,23 mg/dm³; Cu 0,5 mg/dm³; Mn 0,5 mg/dm³; Zn 3,4 mg/dm³; Fe 60 mg/dm³
Fertilizantes: Granubor^®, Solubor^® Flow ⁺K, e líquido 10%B (ácido bórico + monoetanolamina)
Design do teste: Blocos casualizados com quatro repetições
Métricas: Rendimento (kg/ha), teor de B nas folhas e no solo (após a colheita). Avaliação do estande de plantas –para garantir um estande consistente em cada replicação.

Given the soil and climate conditions of this study, the results obtained allowed us to conclude that:

In the first year of the study, the application of Solubor Flow +K at its highest dose (equivalent to 0,9 kg/ha B), divided into five times, provided higher potassium and boron levels during bloom and boll development
In the second year, all treatments that received reapplications of boron were efficient in increasing the number of bolls per plant and the boron levels in the leaf and soil
In the two consecutive years, the seed cotton yields obtained with the foliar applications of Solubor Flow ⁺K were statistically similar to those provided by boron MEA.

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