Diogo Mendes de Paiva

Diogo Mendes de Paiva
Universidade Federal de Viçosa (UFV) | UFV · Departamento de Solos

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5
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45
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Publications

Publications (5)
Article
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Functionalized charcoal (CHox) incorporated into urea is known for its ability to reduce NH3 volatilization and increase agronomic efficiency. However, it is important to optimize the functionalization process and to elucidate its relationship with the physicochemical properties of CHox for N supply. Thus, charcoal obtained from eucalyptus wood was...
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Loss of N through volatilization of ammonia is the main limitation for agricultural use of urea. The aim of this study was to evaluate the volatilization of NH3 from urea granulated (Ug) or urea coated (Ur) with two oxidized charcoals produced by the oxidation of eucalyptus charcoal with 4.0 mol L-1 HNO3, followed by the post-treatment with NaOH (C...
Article
Full-text available
Urea is the most consumed nitrogen fertilizer in the world. However, its agronomic and economic efficiency is reduced by the volatilization of NH3, which can reach 78 % of the applied nitrogen. The coating of urea granules with acidic compounds obtained by charcoal oxidation has the potential to reduce the volatilization, due to the acidic characte...
Article
Full-text available
GENETIC SIMILARITIES OF RICE LANDRACES ACCORDING TO MORPHOLOGY, RAPD MARKERS AND GRAIN PROTEIN CONTENT Twenty rice landraces from Centro Nacional de Pesquisa em Arroz e Feijão (CNPAF), Brazil, were studied as to morphological traits, DNA markers revealed by RAPD technique and protein content. Assessed landraces were different Active Germplasm Bank...
Article
Full-text available
-ATPases. ABSTRACT: BUCHER, C.A.; MATIAS, G.C.S.; PAIVA, D.M. de; SOUZA, S. R. de; FERNANDES, M.S. Nitrogen uptake in two rice varieties. Revista Universidade Rural: Série Ciências da Vida, Seropédica, RJ: EDUR, v.24, n.1, p. 25-30, jan.- jun., 2004. The effects of H+-ATPase in the nitrate uptake were studied in two cultivars of rice, and in two le...

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