Sewage sludges in physic nut seedlings macronutrient contents and chemical attributes of soil

Authors

  • Cácio Luiz Boechat Universidade Federal do Piauí
  • Marcos de Oliveira Ribeiro Universidade Federal do Recôncavo da Bahia
  • Marcela Rebouças Bomfim Universidade Federal da Bahia
  • Náfez Souza Bittencourt Empresa Brasileira de Pesquisa Agropecuária
  • Adriana Maria de Aguiar Accioly Empresa Brasileira de Pesquisa Agropecuária
  • Jorge Antonio Gonzaga Santos Universidade Federal do Recôncavo da Bahia

DOI:

https://doi.org/10.14393/BJ-v31n5a2015-26413

Keywords:

Jatropha curcas L. Soil characteristics. Plant nutrition. Organic waste.

Abstract

Ever since the government began providing incentives for biofuel production, physic nut has appeared to be a promising plant, due to the high oil content of the seeds. The purpose of this study was to evaluate the nutrition of physic nut seedlings and changes in the chemical attributes of soil, based on the doses of domestic and industrial sewage sludge. Two experiments were conducted in a design with casualized blocks with four repetitions using samples of a "Latossolo Amarelo" that received five doses of each sludge, equivalent to 0; 100; 150; 200 and 300 kg N total ha-1. The domestic sewage sludge raised the calcium and magnesium contents in the dry mass of the aerial part and root, and nitrogen and phosphorus in the dry mass of the aerial part of physic nut seedlings, whereas the industrial sludge raised the calcium and nitrogen in the dry mass of the aerial part and root of the physic seedlings, but did not affect the phosphorus, nitrogen, magnesium and potassium contents in the dry mass of the aerial part and root. The domestic sludge did not alter the soil pH but raised the amounts of phosphorus, calcium + magnesium, cation exchange capacity, organic matter and reduced the exchangeable aluminum, while the industrial one raised the pH and the cation exchange capacity of the soil, increased the amounts of phosphorus, calcium + magnesium, and organic matter and reduced the exchangeable aluminum present in the soil. The domestic and industrial sludges may be used to produce physic nut seedlings; however is necessary studies to evaluate the presence of heavy metals or potentially pathogenic microorganisms.

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Published

2015-09-10

How to Cite

BOECHAT, C.L., RIBEIRO, M. de O., BOMFIM, M.R., BITTENCOURT, N.S., ACCIOLY, A.M. de A. and SANTOS, J.A.G., 2015. Sewage sludges in physic nut seedlings macronutrient contents and chemical attributes of soil . Bioscience Journal [online], vol. 31, no. 5, pp. 1378–1387. [Accessed7 December 2022]. DOI 10.14393/BJ-v31n5a2015-26413. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/26413.

Issue

Section

Agricultural Sciences