Data/hora: 14/06/2024 01:41:24

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 29/12/2022
Data da última atualização: | 23/01/2024
Autoria: | BORGES, R.; SOTILES, A. R.; GIROTO, A. S.; GUIMARÃES, G. G. F.; WYPRYCH, F.; JABLONOWSKI, N. D.; RIBEIRO, C.
Afiliação: | CAUE RIBEIRO DE OLIVEIRA, CNPDIA.
Título: | Mechanochemical activation of elemental sulfur increases Its bioavailability in the forage species Brachiaria production.
Ano de publicação: | 2022
Fonte/Imprenta: | ACS Agricultural Science & Technology, v. 2, 2022.
Páginas: | 1292–1299
ISSN: | 2692-1952
DOI: | https://doi.org/10.1021/acsagscitech.2c00248
Idioma: | Inglês
Conteúdo: | Although sulfur is an essential macronutrient for plants, its supply through elemental S0 is not efficient, demanding its oxidation by soil microbiota before plant uptake. Thus, we demonstrate that a simple reactive mechanochemical route, using anhydrous KOH as a reactant with no need for water addition, can convert S0 to bio-absorbable oxidized forms, leading to residualK+ as a plant nutrient in the final composition. The powdery products obtained by 1 h (S-1 h) or 8 h (S-8 h) milling have been fullyconverted to HSO3 &#8722;, SO3 2&#8722;, and SO42&#8722;, also suggesting different amounts of these sulfur oxides according to the milling. S-1 h and S-8 h were efficient for S and K fertilization, as probed by the successful growing of the forage crop Brachiaria ssp. in a greenhouse trial, with similar biomass yields observed for K2SO4 (positive control) and superior to S0 + KCl (negative control). These data suggest that the mechanochemical process provides a sustainable route to increase sulfur plant bioavailability, suggesting a simple alternative that can be easily implemented in forage plant production sites such as Brachiaria ssp.
Palavras-Chave: | Mechanochemical reaction; Sulfur oxidation.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (18173-1) - UPC - AP - DD - PROCI.22/191 -  - 2022/199 - DIS