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Pakistan Journal of Biological Sciences

Year: 2013 | Volume: 16 | Issue: 17 | Page No.: 871-876
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Authors

Ricardo S. Okumura

Daiane de C. Mariano

Paulo V.C. Zaccheo

Amanda N. de Albuquerque

Carmo G. Giebelmeier

Allan K. da S. Lobato

Antonio A.N. Franco

Candido F. de Oliveira Neto

Eduardo C.M. Saldanha

Heraclito E.O. da Conceicao

Raimundo T.L. da Silva

Keywords

This study aimed to evaluate under field conditions the efficiency in the use of N coated with urease inhibitor in maize. The experiment was conducted in the year of 2007/2008. The experimental design was a randomized block design in a factorial 2 x 6, with five repetitions, constituted the N sources (common and coated with urease inhibitor) and levels (0, 40, 80, 120, 160 and 200 kg ha-1 of N) sidedressing nitrogen application in the growth stage V4. Based on the data obtained were determined recovery efficiencies, utilization, agronomic and physiological N applied. In all cases, the efficiency levels for maize were influenced by levels of sidedressing nitrogen application, in which increasing levels of N resulted in a decrease of the efficiencies, regardless of the source being common urea or coated with urease inhibitor.
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How to cite this article

Ricardo S. Okumura, Daiane de C. Mariano, Paulo V.C. Zaccheo, Amanda N. de Albuquerque, Carmo G. Giebelmeier, Allan K. da S. Lobato, Antonio A.N. Franco, Candido F. de Oliveira Neto, Eduardo C.M. Saldanha, Heraclito E.O. da Conceicao and Raimundo T.L. da Silva, 2013. Efficiency of Utilization of Nitrogen Coated with Urease Inhibitor in Maize. Pakistan Journal of Biological Sciences, 16: 871-876.

DOI: 10.3923/pjbs.2013.871.876

URL: https://scialert.net/abstract/?doi=pjbs.2013.871.876

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