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INCLUSION OF TOXIC ELEMENTS IN THE DRIS AND CND FUNCTIONS FOR THE EVALUATION OF EUCALYPTUS NUTRITIONAL STATUS

Grant number: 17/26375-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): August 01, 2018
Effective date (End): July 31, 2022
Field of knowledge:Agronomical Sciences - Forestry Resources and Forestry Engineering - Forest Management
Principal researcher:Cassio Hamilton Abreu Junior
Grantee:Paulo Henrique Silveira Cardoso
Home Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

Due to the great export of nutrients by eucalyptus wood, the fertilizer costs are the ones that most affect its cultivation. Because it contains essential elements such as N, P and Zn, domestic sewage sludge is a potential source of nutrient for the crop. However, the presence of toxic elements and the imbalance between the nutrients demand caution in its use. The objective of this research was to evaluate the possible effects of some toxic elements (As, Ba, Cd, Co, Cr, Hg, Pb and Se) on the nutritional status of eucalyptus. Therefore, an eucalyptus plantation (Eucalyptus grandis, clone SP5727) will be used in an experiment established in February 2015, in the municipality of Boa Esperança do Sul, SP, with 10 treatments combining doses of mineral fertilizer NPK+B+Cu+Zn and doses of sludge+K, with or without P and/or B. The development of the plants will be evaluated by the wood productivity in volume (semesterly) and in biomass (annually). On the occasion of biomass, leaves will be collected for nutritional diagnosis. The nutritional status of the plants, according to the treatments, will be evaluated by the indices of critical level, sufficiency range, integrated diagnosis and recommendation system (DRIS) and nutritional composition and diagnosis (CND) including toxic elements. The DRIS functions will be defined by the nutrient separation method in response groups: macronutrient group with frequent response: N, P and K; macronutrient group of rare response: Ca and Mg; group of frequent response micronutrients: B, Fe, Mn and Zn; group of rare response micronutrients: Cu; and the inclusion of a group of elements of possible response to evaluate the toxic elements. The results obtained will also be submitted to simple and multiple regression analysis, in order to obtain relations between the leaf content of the elements and the yield in volume and biomass of the crop.

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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

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)
ABREU-JUNIOR, CASSIO HAMILTON; DE OLIVEIRA, MARCELO GOMES; SILVEIRA CARDOSO, PAULO HENRIQUE; MANDU, THAYS DA SILVA; FLORENTINO, ANTONIO LEITE; OLIVEIRA, FERNANDO CARVALHO; DOS REIS, JOSIMAR VIEIRA; ALVARES, CLAYTON ALCARDE; STAPE, JOSE LUIZ; RODRIGUES NOGUEIRA, THIAGO ASSIS; CAPRA, GIAN FRANCO; HE, ZHENLI. Sewage Sludge Application in Eucalyptus urograndis Plantation: Availability of Phosphorus in Soil and Wood Production. FRONTIERS IN ENVIRONMENTAL SCIENCE, v. 8, JUL 28 2020. Web of Science Citations: 0.
ABREU-JUNIOR, CASSIO HAMILTON; DE LIMA BROSSI, MARIA JULIA; MONTEIRO, REGINA TERESA; SILVEIRA CARDOSO, PAULO HENRIQUE; MANDU, THAYS DA SILVA; RODRIGUES NOGUEIRA, THIAGO ASSIS; GANGA, ANTONIO; FILZMOSER, PETER; DE OLIVEIRA, FERNANDO CARVALHO; FIRME, LUCIA PITTOL; HE, ZHENLI; CAPRA, GIAN FRANCO. Effects of sewage sludge application on unfertile tropical soils evaluated by multiple approaches: A field experiment in a commercial Eucalyptus plantation. Science of The Total Environment, v. 655, p. 1457-1467, MAR 10 2019. Web of Science Citations: 2.

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