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Development and agronomic evaluation of a new fertilizer based on nanocomposites SULFUR-PHOSPHATE mineral

Grant number: 16/09343-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): September 01, 2016
Effective date (End): January 14, 2018
Field of knowledge:Agronomical Sciences - Agronomy
Principal Investigator:Cauê Ribeiro de Oliveira
Grantee:Gelton Geraldo Fernandes Guimarães
Home Institution: Embrapa Instrumentação Agropecuária. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil

Abstract

The use of rock phosphate (RP) is a strategy to complement phosphorus fertilization; however, these sources do not have the P readily available to plants. Recent studies have shown that the solubility is a property inherently associated to the particle size, which can significantly increase the solubility with a suitable reduction of particle until nanometric size. Therefore, the properties of nanoparticles suggest potential application to increase the solubility of RP. However, the agglomeration trend is a difficulty presented in the nanoparticles use. The elemental sulfur (S0) is a potential matrix to disperse the phosphate nanoparticles, that could be obtain by extrusion at low temperatures. Besides the dispersion effect to solubilize the acid generated from the S0 oxidation to sulfate (SO42-), it may contribute to the phosphate nanoparticles solubilization. The inoculation of oxidize elemental sulfur fungi, such as Aspergillus niger, can control and potentiate the S0oxidation in different soils. Therefore, our central objective is to develop a new fertilizer, based on the natural phosphate nanoparticles dispersion in an elemental sulfur matrix in different proportions, and inoculated with A. niger to control the oxidation of S0. Other objectives are to assess its solubility, the P and S interactions with the soil and the nutrients recovery by plants. The preparation of the new fertilizer is extrusion process based from RP crushed fractions to nanometer ranges dispersed in the S0 matrix by this method. After the evaluation of the ability of the fungus A. niger to oxidize S0, routes will be developed to facilitate the fungal spores inoculation during the nanocomposites synthesis. The nanocomposites characterization will be conduct and the P and S release will be evaluate, associate to the speciation of these nutrients in soil and its availability to plants.

Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BORTOLETTO-SANTOS, RICARDO; FERNANDES GUIMARAES, GELTON GERALDO; RONCATO JUNIOR, VANDERLEI; DA CRUZ, DIEGO FERNANDES; POLITO, WAGNER LUIZ; RIBEIRO, CAUE. Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil. Scientia Agricola, v. 77, n. 1 2020. Web of Science Citations: 0.
KLAIC, RODRIGO; GIROTO, AMANDA S.; GUIMARAES, GELTON G. F.; PLOTEGHER, FABIO; RIBEIRO, CAUE; ZANGIROLAMI, TERESA C.; FARINAS, CRISTIANE S. Nanocomposite of starch-phosphate rock bioactivated for environmentally-friendly fertilization. MINERALS ENGINEERING, v. 128, p. 230-237, NOV 2018. Web of Science Citations: 1.
GUIMARAES, GELTON G. F.; KLAIC, RODRIGO; GIROTO, AMANDA S.; MAJARON, VINICIUS F.; AVANSI, JR., WALDIR; FARINAS, CRISTIANE S.; RIBEIRO, CAUE. Smart Fertilization Based on Sulfur-Phosphate Composites: Synergy among Materials in a Structure with Multiple Fertilization Roles. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 6, n. 9, p. 12187-12196, SEP 2018. Web of Science Citations: 3.
GIROTO, A. S.; GUIMARES, G. G. F.; RIBEIRO, C. A Novel, Simple Route to Produce Urea:Urea-Formaldehyde Composites for Controlled Release of Fertilizers. JOURNAL OF POLYMERS AND THE ENVIRONMENT, v. 26, n. 6, p. 2448-2458, JUN 2018. Web of Science Citations: 3.
BERNARDO, MARCELA P.; GUIMARAES, GELTON G. F.; MAJARON, VINICIUS F.; RIBEIRO, CAUE. Controlled Release of Phosphate from Layered Double Hydroxide Structures: Dynamics in Soil and Application as Smart Fertilizer. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 6, n. 4, p. 5152-5161, APR 2018. Web of Science Citations: 14.
PEREIRA, ELAINE I.; NOGUEIRA, ANA RITA A.; CRUZ, CAMILA C. T.; GUIMARAES, GELTON G. F.; FOSCHIN, MILENE M.; BERNARDI, ALBERTO C. C.; RIBEIRO, CAUE. Controlled Urea Release Employing Nanocomposites Increases the Efficiency of Nitrogen Use by Forage. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 5, n. 11, p. 9993-10001, NOV 2017. Web of Science Citations: 13.
DA CRUZ, DIEGO FERNANDES; BORTOLETTO-SANTOS, RICARDO; FERNANDES GUIMARAES, GELTON GERALDO; POLITO, WAGNER LUIZ; RIBEIRO, CAUE. Role of Polymeric Coating on the Phosphate Availability as a Fertilizer: Insight from Phosphate Release by Castor Polyurethane Coatings. Journal of Agricultural and Food Chemistry, v. 65, n. 29, p. 5890-5895, JUL 26 2017. Web of Science Citations: 16.
GIROTO, AMANDA S.; GUIMARAES, GELTON G. F.; FOSCHINI, MILENE; RIBEIRO, CAUE. Role of Slow-Release Nanocomposite Fertilizers on Nitrogen and Phosphate Availability in Soil. SCIENTIFIC REPORTS, v. 7, APR 13 2017. Web of Science Citations: 17.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.

Filed patent(s) as a result of this research project

Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação BR1020180695495 - Universidade Federal de São Carlos (UFSCAR) . Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação - September 2018, 25