Eficiência da fertilização fosfatada e nitrogenada em cultivares de milheto

Alzira Gabriela da Silva; Aldi Fernandes de Souza França; Eliane Sayuri Miyagi; Carlos Eduardo Dambros; Fernando Brito Lopes

doi:10.1590/1809-6891v15i29010

EFFICIENCY OF NITROGEN AND PHOSPHATE FERTILIZATION ON PEARL MILLET CULTIVARS

Authors

Alzira Gabriela da Silva Universidade Federal do Pará (UFPA), Belém, Pará, Brasil
Aldi Fernandes de Souza França Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
Eliane Sayuri Miyagi Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
Carlos Eduardo Dambros Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
Fernando Brito Lopes Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil

DOI:

https://doi.org/10.1590/1809-6891v15i29010

Keywords:

Animal nutrition

Abstract

In this study we aimed at evaluating the dry matter production (DMP), nitrogen content (NC) in plant tissues, above ground nitrogen conversion efficiency (ANCE) and above ground nitrogen recovery (ANR) by pearl millet cultivars submitted to different sources of phosphorus and nitrogen doses. The experiment was carried out in 2008 and a completely randomized block design was used in a 2 × 3 × 4 factorial arrangement with four replications. Treatments consisted of three pearl millet cultivars (ADR-7010; ADR-500 and BRS-1501), two sources of phosphorus (simple phosphate and thermo phosphate) at one dose (70 kg.ha^-1) and four nitrogen (urea) doses (0; 40; 80 and 160 kg.ha^-1). Statistical analysis revealed no significant interactions among variables. ADR-7010 presented (P<0.05) best dry matter production (1175.9 kg.ha^-1) amongst cultivars; and simple phosphate showed better result than thermo phosphate. Increasing nitrogen doses led to increased production; harvest succession reduced DMP. There was difference (P<0.05) in NC. Linear NC increase was observed in function of N doses, with maximum value being 42.7 kg of extracted N. The ANCE and ANR decreased with nutrient input, maximum values being 10.7 kg.ha^-1 and 33.4%, respectively, in the 40 kg.ha^-1 dose. Nitrogen fertilization increased the pear millet cultivars dry matter production.

KEYWORDS: crude protein, Pennisetum glaucum, phosphorus, production potential, urea.

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Published

2014-06-29

How to Cite

SILVA, Alzira Gabriela da; FRANÇA, Aldi Fernandes de Souza; MIYAGI, Eliane Sayuri; DAMBROS, Carlos Eduardo; LOPES, Fernando Brito. EFFICIENCY OF NITROGEN AND PHOSPHATE FERTILIZATION ON PEARL MILLET CULTIVARS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 15, n. 2, p. 119–127, 2014. DOI: 10.1590/1809-6891v15i29010. Disponível em: https://revistas.ufg.br/vet/article/view/9010. Acesso em: 5 dec. 2025.

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Issue

Vol. 15 No. 2 (2014)

Section

Animal Production

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