Fertilizer containing nitrification inhibitor in tomato cultivation for industrial processing

Autores

  • Juliano Magalhães Barbosa UFG - Universidade Federal de Goiás
  • Cláudia Fabiana Alves Rezende UniEVANGÉLICA - Centro Universitário de Anápolis
  • Wilson Mozena Leandro UFG - Universidade Federal de Goiás
  • Rilner Alves Flores UFG - Universidade Federal de Goiás
  • Átila Reis da Silva UFG - Universidade Federal de Goiás
  • Elizandro Santos Santana UFG - Universidade Federal de Goiás

DOI:

https://doi.org/10.15361/1984-5529.2018v46n1p66-73

Resumo

An alternative to increase the N use efficiency may be to control its availability in order to mitigate losses and provide it throughout the crop cycle. In this context, the use of fertilizers with inhibitors of nitrification or urea hydroly­sis is highlighted. Thus, the objective was to evaluate the use of controlled-release and stabilized fertilizers in total or partial substitution of conventional fertilization in the industrial tomato crop. The experiment was carried out under field conditions, in an area irrigated by central pivot, in a Red Dystrophic Latosol. The experimental design was a randomized block with seven treatments and five replicates. Where the (*) amount of NPK fertilizer in t ha-1 consisted of: 1. NSF - natural soil fertility; 2. PGM - planting with granule mixture (1.5*) + urea coverage (0.12*) and potassium chloride (KCl) (0.3*) + absence of foliar application; 3. Fertilizer with nitrification inhibitor (DMPP) 0.3 - PGM (1.0*) + coverage with DMPP (0.3*) and KCl (0.42*) + foliar application; 4. DMPP 0.25 - PGM (1.0*) + coverage with DMPP (0.25*) and KCl (0.3*) + foliar application; 5. DMPP 0.15 - PGM (0.9*) + coverage with DMPP (0.15*) and KCl (0.2*) + foliar application; 6. DMPP 0.05 - PGM (0.6*) + coverage with DMPP (0.05*) and KCl (0.1*) + foliar application; 7. DMPP 0.7 - planting with NPK with DMPP (0.7*) + absence of foliar applica­tion. The use of fertilizers with nitrification inhibitor (DMPP) does not increase fruit yield and quality in relation to the use of conventional fertilizers (PGM), but may be an alternative in the cultivation of industrial tomatoes.

Biografia do Autor

Juliano Magalhães Barbosa, UFG - Universidade Federal de Goiás

Departamento de Solos e Fitotecnia.

Cláudia Fabiana Alves Rezende, UniEVANGÉLICA - Centro Universitário de Anápolis

Departamento de Fitotecnia.

Wilson Mozena Leandro, UFG - Universidade Federal de Goiás

Departamento de Solos

Rilner Alves Flores, UFG - Universidade Federal de Goiás

Departamento de Solos

Átila Reis da Silva, UFG - Universidade Federal de Goiás

Departamento de Solos

Elizandro Santos Santana, UFG - Universidade Federal de Goiás

Departamento de Solos

Publicado

01/03/2018

Edição

Seção

Solos e Nutrição de Plantas - Soils and Plant Nutrition