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

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

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Univ Estadual Mato Grosso Sul


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.



nitrogen, Phaseolus vulgaris L., fertilization, N losses

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