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Methodological advances in soil nitrogen transformations for sugarcane production

Grant number: 11/22660-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): January 01, 2013
Effective date (End): July 31, 2013
Field of knowledge:Agronomical Sciences - Agronomy
Principal Investigator:Paulo Cesar Ocheuze Trivelin
Grantee:Rafael Otto
Home Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil


In order to decrease the dependence of fossil fuels worldwide, sugarcane is a promising crop for biofuels production. However, social, environmental and economical issues should be considered for sustainable production of renewable fuels. Nitrogen fertilizers play a key role in sugarcane growth, increasing the yield of stalks, sugar and ethanol. However the use of N fertilizer improperly causes environmental threats such as nitrate leaching or nitrous oxide emission due to nitrification and denitrification process. Recent studies undertaken in State of Sao Paulo, the largest sugarcane producer in Brazil, showed differences in sugarcane response to N fertilizer due to soil management history, which changed the soil N mineralization and its availability to the plants. Thus seems essential quantifying the soil N supplying power in order to improve the N fertilizer management of sugarcane. The goals for this post-doc position are (i) to install an advanced laboratory that allows studying soil N transformations in sugarcane production areas, supported by the newly funded FAPESP project no 2011/14372-1; (ii) to perform soil N mineralization studies under field and laboratory conditions in sugarcane trials; (iii) to participate of other projects undertaken by the team of the main researcher and (iv) develop a wide revision paper leading with the impacts of N fertilization in sugarcane yield and in the sustainability of sugarcane ethanol production. This project will be partially supported by the regular project of funding "Soil N mineralization as predictor of sugarcane N fertilizer requirements", under supervision of Paulo Cesar Ocheuze Trivelin, from 11/01/2011 to 10/31/2013.

Scientific publications
(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)
OTTO, RAFAEL; MARIANO, EDUARDO; MULVANEY, RICHARD LESLEY; KHAN, SAEED AHMAD; BOSCHIERO, BEATA NASTARO; TENELLI, SARAH; OCHEUZE TRIVELIN, PAULO CEZAR. Effect of previous soil management on sugarcane response to nitrogen fertilization. Scientia Agricola, v. 76, n. 1, p. 72-81, JAN-FEB 2019. Web of Science Citations: 0.
NUNES CARVALHO, JOAO LUIS; OTTO, RAFAEL; JUNQUEIRA FRANCO, HENRIQUE COUTINHO; OCHEUZE TRIVELIN, PAULO CESAR. Input of sugarcane post-harvest residues into the soil. Scientia Agricola, v. 70, n. 5, p. 336-344, Out. 2013. Web of Science Citations: 26.
OCHEUZE TRIVELIN, PAULO CESAR; JUNQUEIRA FRANCO, HENRIQUE COUTINHO; OTTO, RAFAEL; FERREIRA, DANILO A.; VITTI, ANDRE CESAR; FORTES, CAIO; FARONI, CARLOS E.; OLIVEIRA, EMIDIO C. A.; CANTARELLA, HEITOR. Impact of sugarcane trash on fertilizer requirements for Sao Paulo, Brazil. Scientia Agricola, v. 70, n. 5, p. 345-352, 2013. Web of Science Citations: 37.

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