Doses e épocas de aplicação de nitrogênio em cobertura em dois cultivares de arroz com irrigação suplementar - DOI: 10.4025/actasciagron.v26i4.1803

Monica Bernardo Neves; Salatiér Buzetti; Orivaldo Arf; Marco Eustáquio de Sá

doi:10.4025/actasciagron.v26i4.1803

Doses and periods of sidedressing nitrogen application in two rice cultivars under sprinkle irrigation - DOI: 10.4025/actasciagron.v26i4.1803

Authors

Monica Bernardo Neves UNESP Author
Salatiér Buzetti FEIS Author
Orivaldo Arf UNESP Author
Marco Eustáquio de Sá UNESP Author

DOI:

https://doi.org/10.4025/actasciagron.v26i4.1803

Keywords:

Oryza sativa L., arroz, nitrogênio, cultivares, produtividade, qualidade de sementes

Abstract

Nitrogen is the most extracted element by rice crop. Although it can exceed 100kg ha^-1, there is not always a response for its application. This study was carried out in field conditions, in a Dark Red Latosol, loamy texture. A center-pivot system applying water was used according to the necessity of the crop. Two rice cultivars: Carajás and IAC – 202, 4 doses of N (urea) (0, 40, 80 and 160kg ha^-1 of N) at sidedressing in two periods (30 and/or 50 days after plant emergency) were used. A fixed dose of 20kg ha^-1 of N was applied at sowing, and a control treatment did not receive nitrogen application. The higher yield was reached with 20kg ha^-1 N at sowing and 40kg ha^-1 N at 30 and 50 days after plant germination

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Author Biography

Salatiér Buzetti, FEIS

Possui graduação em Engenharia Agronômica pela Universidade Estadual Paulista Júlio de Mesquita Filho (1979) , mestrado em Solos e Nutricão de Plantas pela Universidade de São Paulo (1985) , doutorado em Solos e Nutricão de Plantas pela Universidade de São Paulo (1988) e pos-doutorado pela University of Wisconsin-Madison (1997) . Atualmente é Professor Universitario da Universidade Estadual Paulista Júlio de Mesquita Filho, Membro de corpo editorial da Cultura Agronômica, Revisor de periódico da Revista Brasileira de Ciência do Solo, Revisor de periódico da Acta Scientiarum (UEM), Revisor de periódico da Científica (São Paulo), Revisor de periódico da Scientia Agricola, Revisor de periódico da Pesquisa Agropecuária Brasileira, Revisor de periódico da Revista Brasileira de Fruticultura, Revisor de periódico da Bragantia, Revisor de periódico da Ciência Rural e Revisor de periódico da Revista Ãrvore (0100-6762). Tem experiência na área de Agronomia , com ênfase em Ciência do Solo. Atuando principalmente nos seguintes temas: zinco - milho - nível crítico - extratores Currículo Lattes

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Published

2008-04-11

Issue

Vol. 26 No. 4 (2004)

Section

Agronomy

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I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

How to Cite

Neves, M. B., Buzetti, S., Arf, O., & Sá, M. E. de. (2008). Doses and periods of sidedressing nitrogen application in two rice cultivars under sprinkle irrigation - DOI: 10.4025/actasciagron.v26i4.1803. Acta Scientiarum. Agronomy, 26(4), 429-435. https://doi.org/10.4025/actasciagron.v26i4.1803