Ammonia volatilization from mixed mineral fertilizers containing urea

Authors

  • Gabriela Cemirames de Sousa Gurgel Universidade Federal Rural do Rio de Janeiro, Departamento de Solos, BR 465, Km 7, CEP 23897-000 Seropédica, RJ
  • Anderson Claiton Ferrari Universidade Federal Rural do Rio de Janeiro, Departamento de Solos, BR 465, Km 7, CEP 23897-000 Seropédica, RJ
  • Ademir Fontana Embrapa Solos, Rua Jardim Botânico, no 1024, Jardim Botânico, CEP 22460-000 Rio de Janeiro, RJ.
  • José Carlos Polidoro Embrapa Solos, Rua Jardim Botânico, no 1024, Jardim Botânico, CEP 22460-000 Rio de Janeiro, RJ.
  • Leonardo de Andrade Martins Coelho Universidade Federal Rural do Rio de Janeiro, Departamento de Solos, BR 465, Km 7, CEP 23897-000 Seropédica, RJ.
  • Everaldo Zonta Universidade Federal Rural do Rio de Janeiro, Departamento de Solos, BR 465, Km 7, CEP 23897-000 Seropédica, RJ.

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.22477

Keywords:

humic acids, semi-open collectors, nitrogen fertilizers, organic mineral fertilizers, N losses, zeolite

Abstract

The objective of this work was to select a method for estimating N-NH3 lost by volatilization and to determine these losses in mixed fertilizers containing urea. An experiment was conducted in a greenhouse in trays filled with sandy soil, with urea rates of 0, 50, 100, and 200 kg ha-1 N. Volatilized ammonia was
quantified by three methods: CSA, semi-open collector; Sale, free and static semi-open collector; and CA, open collector. In a second experiment, volatilization of ammonia from 18 fertilizers mixed with urea, humic acids, and zeolite was evaluated in sandy and clayey soils, at 200 kg ha-1 N. CSA was the method with the highest N recovery, followed by Sale and CA. Sale is more suited for experiments with a high number of experimental units, since it is more practical. The mixed fertilizers with urea and humic acids (5 and 10%) and with urea and zeolite (10%) had the best results in the mitigation of ammonia volatilization, reducing N-NH3 losses in up to 38%. The treatments are more effective in mitigating volatilization losses in the sandy soil.

Author Biographies

Downloads

Published

2016-10-17

Issue

v.51, n.9, set. 2016: Número Temático O solo como fator de integração entre os componentes ambientais e a produção agropecuária

Section

SOLO E PRODUÇÃO (TEMÁTICO)

How to Cite

de Sousa Gurgel, G. C., Ferrari, A. C., Fontana, A., Polidoro, J. C., de Andrade Martins Coelho, L., & Zonta, E. (2016). Ammonia volatilization from mixed mineral fertilizers containing urea. Pesquisa Agropecuaria Brasileira, 51(9), 1686-1694. https://doi.org/10.1590/S1678-3921.pab2016.v51.22477

Most read articles by the same author(s)

1-10 of 14