Ammonia losses by volatilization in response to nitrogen fertilization of bean common crop

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Data

2016-01-01

Autores

Cardoso dos Santos, Susiane Moura
Antonangelo, Joao Arthur
Fernandes Deus, Angelica Cristina [UNESP]
Fernandes, Dirceu Maximino [UNESP]

Título da Revista

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Editor

Univ Estadual Mato Grosso Sul

Resumo

Nitrogen (N) is one of the nutrients that most limits the growth and development of plants, mainly because of its wide dynamics in the soil-plant-atmosphere system. Among the various processes that this element is subject, can highlight volatilization. The ammonia (N-NH3) losses by volatilization can reach 78% of the N applied as urea, and it varies according to the source used. This study aimed to quantify the N-NH3 losses by volatilization, resulting from the application of different doses and sources of N in bean common crop (Phaseolus vulgaris L.). The experimental design was randomized blocks, with sixteen treatments and five repetitions. The treatments consisted of three rates of N in cover (100, 200 and 300 mg dm(-3)) and five N sources, and a control treatment (no nitrogen fertilization). The highest numerical losses of N-NH3 volatilization occurred in the second period of application for the Ajifer, urea and ammonium nitrate sources.

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Palavras-chave

nitrogen, Phaseolus vulgaris L., fertilization, N losses

Como citar

Revista De Agricultura Neotropical. Dourados: Univ Estadual Mato Grosso Sul, v. 3, n. 1, p. 16-20, 2016.