Response of cowpea to water levels and phosphate fertilizer on the savanna of Roraima

Response of cowpea to water levels and phosphate fertilizer on the savanna of Roraima

This work was carried out to evaluate the effect of irrigation depth and phosphate fertilizer (0; 70; 140; 210 kg ha-1 de P2O5) on yield and production components of cowpea (Vigna unguiculata L. Walp) cv. Novaera at the Savanna of Roraima, Brazil. The experimental design was arranged in a completely...

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Bibliographic Details
Published in:Ciência agronômica Vol. 42; no. 4; p. 872
Main Authors: Oliveira, G.A, Araújo, W.F, Cruz, P.L, Silva, W.L.M. da, Ferreira, G.B
Format: Journal Article
Language:Portuguese
Published: Fortaleza Universidade Federal do Ceará, Centro de Ciências Agrárias 01-10-2011
Subjects:
ADUBAÇÃO
AMAZONIA
AMAZONIE
AMAZÔNIA
APLICACIA³N DE ABONOS
FA³SFORO
FEIJÃO DE CORDA
FERTILISATION
FERTILIZER APPLICATION
FÓSFORO
http://www.fao.org/aos/agrovoc#c_10795
http://www.fao.org/aos/agrovoc#c_32372
http://www.fao.org/aos/agrovoc#c_3954
http://www.fao.org/aos/agrovoc#c_5804
http://www.fao.org/aos/agrovoc#c_8247
IRRIGATION
IRRIGAÇÃO
PHOSPHORE
PHOSPHORUS
PRODUTIVIDADE
RIEGO
VIGNA UNGUICULATA
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Summary:This work was carried out to evaluate the effect of irrigation depth and phosphate fertilizer (0; 70; 140; 210 kg ha-1 de P2O5) on yield and production components of cowpea (Vigna unguiculata L. Walp) cv. Novaera at the Savanna of Roraima, Brazil. The experimental design was arranged in a completely randomized block in split-plot and four replications. Irrigation depths were applied through a sprinkler line source system. The principal treatments constituted on the depths of irrigation and the secondary treatments by the phosphate fertilizer. Significant effects (p < 0.05) of the depth of irrigation and phosphate fertilizer interaction with aerial mass production and mass of 100 grains were observed. The number of grains per pods and size of pod were affected by the phosphate fertilizer only. The highest economical yield (1.306 kg ha-1) was obtained by 89.45 kg of P2O5.
Bibliography:2012000479
F06
F04
ISSN:0045-6888
1806-6690