SOIL FERTILITY, NUTRITIONAL STATUS, AND YIELD OF SUNFLOWER FERTILIZED WITH SEWAGE SLUDGE

Authors

  • Victor Sanches Ribeirinho Instituto Agronômico de Campinas (IAC), Brasil
  • Wanderley José de Melo Universidade Estadual Paulista (UNESP), Brasil
  • Denis Herisson da Silva Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Brasil
  • Leila Aparecida Figueiredo Universidade de São Paulo (USP), Brasil
  • Gabriel Maurício Peruca de Melo Universidade Camilo Castelo Branco (UniCastelo), Brasil

Keywords:

Helianthus annuus L., Oxissol, plant nutrition.

Abstract

The disposal of sewage sludge in agricultural soils is of great concern. It can substitute mineral fertilizers, after a proper potassium supplementation, especially in crops such as the sunflower one. This study aimed to evaluate the grain yield and mineral nutrition of the sunflower cv. CATISSOL 01, as well as the fertility of an Oxisol fertilized with sewage sludge, in comparison to mineral fertilization, for two consecutive years. A randomized blocks design, with 4 treatments (control - mineral fertilization, 5 t ha-1 year-1, 10 t ha-1 year-1, and 20 t ha-1 year-1 of sewage sludge) and five replicates, was used. Grain yield, macro and micronutrients contents (in diagnostic leaves) and soil fertility were evaluated. The sunflower seeds yield was similar, in all doses, for both the sewage sludge and mineral fertilization, and macro and micronutrients contents in leaves were within the adequate range. The use of sewage sludge enriched with K showed to be effective for replacing totally or partially mineral fertilization, without affecting the sunflower yield.

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Author Biography

Victor Sanches Ribeirinho, Instituto Agronômico de Campinas (IAC), Brasil

Possui Mestrado no Centro de Energia Nuclear na Agricultura, com estudo envolvendo técnicas isotópicas e fertilizantes. Possui graduação em Agronomia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2007). Tem experiência na área de Agronomia, com ênfase em Microbiologia e Bioquímica do Solo, atuando principalmente nos seguintes temas: lodo de esgoto, girassol, metais pesados, nutrientes e atividade enzimática.

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Published

2012-06-13

How to Cite

RIBEIRINHO, V. S.; MELO, W. J. de; SILVA, D. H. da; FIGUEIREDO, L. A.; MELO, G. M. P. de. SOIL FERTILITY, NUTRITIONAL STATUS, AND YIELD OF SUNFLOWER FERTILIZED WITH SEWAGE SLUDGE. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 42, n. 2, p. 166–173, 2012. Disponível em: https://revistas.ufg.br/pat/article/view/15858. Acesso em: 22 nov. 2024.

Issue

v. 42, n. 2, Apr./Jun. 2012

Section

Soil Science

License

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