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Sulfur and Zinc Availability from Co-granulated Zn-Enriched Elemental Sulfur Fertilizers.
Mattiello, Edson M; da Silva, Rodrigo C; Degryse, Fien; Baird, Roslyn; Gupta, Vadakattu V S R; McLaughlin, Michael J.
Afiliação
  • Mattiello EM; Department of Soil Science, Universidade Federal de Viçosa , Viçosa, Minas Gerais 36570-900, Brazil.
  • da Silva RC; School of Agriculture, Food and Wine, The University of Adelaide , PMB 1, Waite Campus, Glen Osmond, SA 5064, Australia.
  • Degryse F; School of Agriculture, Food and Wine, The University of Adelaide , PMB 1, Waite Campus, Glen Osmond, SA 5064, Australia.
  • Baird R; School of Agriculture, Food and Wine, The University of Adelaide , PMB 1, Waite Campus, Glen Osmond, SA 5064, Australia.
  • Gupta VV; CSIRO Agriculture and Food , PMB 2, Glen Osmond, SA 5064, Australia.
  • McLaughlin MJ; School of Agriculture, Food and Wine, The University of Adelaide , PMB 1, Waite Campus, Glen Osmond, SA 5064, Australia.
J Agric Food Chem ; 65(6): 1108-1115, 2017 Feb 15.
Article em En | MEDLINE | ID: mdl-28128937
Acidification by oxidation of elemental sulfur (ES) can solubilize ZnO, providing slow release of both sulfur (S) and zinc (Zn) in soil. For this study, a new granular fertilizer with ES and ZnO was produced and evaluated. The effect of incorporating microorganisms or a carbon source in the granule was also evaluated. Four granulated ES-Zn fertilizers with and without S-oxidizing microorganisms, a commercial ES pastille, ZnSO4, and ZnO were applied to the center of Petri dishes containing two contrasting pH soils. Soil pH, CaCl2-extractable S and Zn, and remaining ES were evaluated at 30 and 60 days in two soil sections (0-5 and 5-9 mm from the fertilizer application site). A visualization test was performed to evaluate Zn diffusion over time. A significant pH decrease was observed in the acidic soil for all ES-Zn fertilizer treatments and in the alkaline soil for the Acidithiobacillus thiooxidans-inoculated treatment only. In agreement with Zn visualization tests, extractable-Zn concentrations were higher from the point of application in the acidic (62.9 mg dm-3) compared to the alkaline soil (5.5 mg dm-3). Elemental S oxidation was greater in the acidic soil (20.9%) than slightly alkaline soil (12%). The ES-Zn granular fertilizers increased S and Zn concentrations in soil and can provide a strategically slow release of nutrients to the soil.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Enxofre / Zinco / Fertilizantes Idioma: En Revista: J Agric Food Chem Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Enxofre / Zinco / Fertilizantes Idioma: En Revista: J Agric Food Chem Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos