African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Effects of different rates of nitrogen (N) and phosphorus pentoxide (P2O5) on eggplant yield

Paulo Ricardo Lima
  • Paulo Ricardo Lima
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Ricardo Estefano Carlesso
  • Ricardo Estefano Carlesso
  • Faculdade Anhanguera de Dourados. Rua Manoel Santiago, 1155, Vila São Luís. CEP: 79825-150, Dourados/MS, Brazil.
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Augustinho Borsoi*
  • Augustinho Borsoi*
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Martios Ecco
  • Martios Ecco
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Fernando Vinícius Fernandes
  • Fernando Vinícius Fernandes
  • Faculdade Anhanguera de Dourados. Rua Manoel Santiago, 1155, Vila São Luís. CEP: 79825-150, Dourados/MS, Brazil.
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Éder Junior Mezzalira
  • Éder Junior Mezzalira
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Leandro Rampim
  • Leandro Rampim
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Jean Sérgio Rosset
  • Jean Sérgio Rosset
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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André Gustavo Battistus
  • André Gustavo Battistus
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Ubirajara Contro Malavasi
  • Ubirajara Contro Malavasi
  • Programa de Pós Graduação em Agronomia (PPGA); Universidade Estadual do Oeste do Paraná - UNIOESTE, campus Marechal Cândido Rondon; Rua Pernambuco, 1777, CP: 1008, Centro, CEP: 85960-000, Marechal Cândido Rondon-PR, Brazil.
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Paulo Rogério Beltramin da Fonseca
  • Paulo Rogério Beltramin da Fonseca
  • Programa de Pós-graduação em Agronomia, Universidade Federal da Grande Dourados, UFGD. Rodovia Dourados Ithum KM 12, Aeroporto. CEP: 79804-970, CP: 533, Dourados/MS – Brazil.
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  •  Received: 03 July 2013
  •  Accepted: 16 April 2014
  •  Published: 08 May 2014

Abstract

The balanced fertilization is crucial for obtaining a good plants growth and achieve good productivity indices. The aim of this study was to evaluate the performance of eggplant (Solanum melongena L.) under different doses of nitrogen (N) and Phosphorus pentoxide (P2O5) performed separately. The study was conducted in 5 liter-pots arranged in a completely randomized design, consisting of 5 doses (0, 50, 100, 150 and 200 kg ha-1) of N and P2O5 with 5 replications in a greenhouse, located at latitude 22° 13' S and longitude 54° 48' W. The variables analyzed were: root fresh mass (RFM) and root dry mass (RDM), shoot fresh mass (SFM) and shoot dry mass (SDM), fruit weight (FW), number of fruits (FN) per plant, stem diameter (SD) and plant height (PH). Application of N had significant effects on all variables studied, except for SD. Application of P2O5 had significant effects on most variables, except for PH, SFM and FW. N applications affected yield more than P2O5 due to FN and FW. The dose of 100 to 150 kg ha-1 both for N and P2O5 provided the best results.

Key words: Soil fertility, plant nutrition, horticulture, Solanaceae.