TY  - JOUR
AU  - Borges, Roger
AU  - Sotiles, Anne Raquel
AU  - Giroto, Amanda Soares
AU  - Fernandes Guimarães, Gelton Geraldo
AU  - Wypych, Fernando
AU  - Jablonowski, Nicolai David
AU  - Ribeiro, Caue
TI  - Mechanochemical Activation of Elemental Sulfur Increases Its Bioavailability in the Forage Species Brachiaria Production
JO  - ACS Agricultural science & technology
VL  - 2
IS  - 6
SN  - 2692-1952
CY  - Washington, DC
PB  - ACS Publications
M1  - FZJ-2023-00186
SP  - 1292 - 1299
PY  - 2022
AB  - 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 the residual K+ a plant nutrient in the final composition. The powdery products obtained by 1 h (S-1h) or 8 h (S-8h) milling have been fully converted to HSO3-, SO32-, and SO42-, also suggesting different amounts of these sulfur oxides according to the milling. S-1h and S-8h were efficient for S and K fertilization, probed on 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000890881500001
DO  - DOI:10.1021/acsagscitech.2c00248
UR  - https://juser.fz-juelich.de/record/916897
ER  -