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Engenharia na Agricultura
Article . 2017 . Peer-reviewed
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Engenharia na Agricultura
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MOBILIDADE DOS ÍONS NITRATO E AMÔNIO EM ÁREA AGRÍCOLA SOB ADUBAÇÃO COM ÁGUA RESIDUÁRIA DE BOVINOCULTURA DE LEITE E TORTA DE MAMONA

Authors: Jonathas Batista Gonçalves Silva; Carina Soares Pires; Antonio Teixeira de Matos; Geuzimar Terração; Mauro Aparecido Martinez;

MOBILIDADE DOS ÍONS NITRATO E AMÔNIO EM ÁREA AGRÍCOLA SOB ADUBAÇÃO COM ÁGUA RESIDUÁRIA DE BOVINOCULTURA DE LEITE E TORTA DE MAMONA

Abstract

Objetivou-se, neste trabalho, avaliar a mobilidade dos íons nitrato e amônio em um Argissolo Vermelho-Amarelo, quando aplicado água residuária de bovinocultura de leite (ARB) e torta de mamona. O experimento foi conduzido no Sistema Integrado de Produção Agroecológica, localizado no município de Seropédica, Rio de Janeiro. Na área utilizada nesse trabalho é cultivada a figueira (Ficuscarica L.), variedade Roxo de Valinhos. Diferentes lâminas de ARB foram aplicadas no solo como fonte de adubação de nitrogênio (Adubação 1- 0% de ARB e adubação complementar com torta de mamona; Adubação 2 - 50% da dose de N recomendada fornecida pela ARB e os outros 50% com a torta de mamona; Adubação 3 - 75% da dose de N recomendada fornecida pela ARB e os outros 25% fornecido pela torta de mamona; Adubação 4 - 100% da dose de N recomendada fornecida pela ARB). Nas parcelas experimentais foram instalados extratores a 0,15 e a 0,60 m de profundidade. As concentrações de nitrato obtidas foram muito elevadas, com valores de até 323 mg.L-1. No entanto, os valores do amônio na solução do solo foram baixos, com valores abaixo de 0,44 mg.L-1. Os resultados indicam a necessidade de um rigoroso monitoramento no uso de ARB e torta de mamona em áreas agrícolas.

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    3
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
gold