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Artigo Acesso aberto Produção Nacional
BIBTEX RIS

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

2014; Academic Journals; Volume: 9; Issue: 19 Linguagem: Inglês

10.5897/ajar2013.7597

ISSN

1991-637X

Autores

Paulo Ricardo Lima, Ricardo Estefano Carlesso, Augustinho Borsoi, Martios Ecco, Fernando Vinícius Fernandes, Éder Júnior Mezzalira, Leandro Rampim, Jean Sérgio Rosset, André Gustavo Battistus, Ubirajara Contro Malavasi, Paulo Rogério Beltramin da Fonseca,

Tópico(s)

Plant Growth Enhancement Techniques

Resumo

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 (P 2 O 5 ) 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 P 2 O 5 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 P 2 O 5 had significant effects on most variables, except for PH, SFM and FW.N applications affected yield more than P 2 O 5 due to FN and FW.The dose of 100 to 150 kg ha -1 both for N and P 2 O 5 provided the best results.

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