Journal of
Plant Breeding and Crop Science

  • Abbreviation: J. Plant Breed. Crop Sci.
  • Language: English
  • ISSN: 2006-9758
  • DOI: 10.5897/JPBCS
  • Start Year: 2009
  • Published Articles: 335

Full Length Research Paper

Production of groups of tomatoes in substrate at different concentrations of phosphorus

Douglas Jose Marques
  • Douglas Jose Marques
  • Setor de Olericultura e Experimentação, Departamento de Agronomia, Universidade José do Rosário Vellano – UNIFENAS, Alfenas, Minas Gerais, Brasil.
  • Google Scholar
Tales Machado Lacerda
  • Tales Machado Lacerda
  • Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas – Campus Machado, Minas Gerais, Brasil.
  • Google Scholar
Wellington Ferrari da Silva
  • Wellington Ferrari da Silva
  • Departamento de Engenharia Nuclear, Programa de Pós-Graduação em Ciências e Técnicas Nucleares, Universidade Federal de Minas Gerais-UFMG – Brasil.
  • Google Scholar
Marcio de Souza Dias
  • Marcio de Souza Dias
  • Secretaria do Estado de Educação de Minas Gerais - Minas Gerais, Brasil.
  • Google Scholar
Hudson Carvalho Bianchini
  • Hudson Carvalho Bianchini
  • Fertilidade e Adubação do Solo. Universidade José do Rosário Vellano – UNIFENAS, Alfenas, Minas Gerais, Brasil.
  • Google Scholar


  •  Received: 08 September 2017
  •  Accepted: 07 December 2017
  •  Published: 28 February 2018

Abstract

The development of production technologies, such as greenhouses, was highlighted in the growth of horticultural crops. However, these products are often offered without basic instructions to farmers who can generate financial losses. One outstanding production technology is substrate cultivation, which would be very useful in the cultivation of protected plants. Like this, in order to evaluate the effects of different doses of phosphorus on the production of tomato groups grown in substrate under greenhouse conditions, a randomized complete block design was used in a 2 x 5 factorial scheme, with two tomato groups: Santa Cruz "Debora Max" and Cherry "Coco" x five rates of P2O5 (0; 33; 66; 99 and 132 g; 10 L of nutrient solution) with four replicates. The results showed that the electrical conductivity inside the Slabs is not homogeneous, being recommended to wet the substrate inside the slabs, before the planting to reduce the electrical conductivity. In relation to phosphorus efficiency, the highest tomato yield was for the 6.6 g L-1 phosphorus dose for the two Santa Cruz and Cherry groups. The main advantage of using slabs in tomatoes is the efficiency of the phosphorus used in the first planting.

 

Key words: Lycopersicon esculentum, substrate, slabs, phosphorus, fertilization.