2011
DOI: 10.1590/s0100-06832011000500024
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Brachiaria species affecting soil nitrification

Abstract: SUMMARYNitrification can lead to substantial losses of the applied N through nitrate leaching and N 2 O emission. The regulation of nitrification may be a strategy to improve fertilizer N recovery and increase its agronomic efficiency. The objective of this study was to evaluate the inhibiting capacity of nitrification in soil by Brachiaria species. The greenhouse experiment was conducted using pots with 10 dm 3 of a Red Latosol sample. The treatments consisted of the cultivation of three forage species (Brach… Show more

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Cited by 9 publications
(13 citation statements)
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“…Countless studies have related cultivation or occurrence of Brachiaria sp. to the predominance of N in ammoniacal form (Carmo et al, 2005;Moro et al, 2013;Fernandes et al, 2011) It is possible that the direct ancestor of cultivated sugarcane, such as Saccharum spontaneum, has a similar mechanism, since sugarcane seems to prefer to absorb N as NH 4 + instead of NO 3 − (Robinson et al, 2011). Confirmation of this information would be valuable to the genetic improvement of sugarcane, and may contribute to the understanding of the limited response of sugarcane to the application of N on certain occasions.…”
Section: Introductionmentioning
confidence: 99%
“…Countless studies have related cultivation or occurrence of Brachiaria sp. to the predominance of N in ammoniacal form (Carmo et al, 2005;Moro et al, 2013;Fernandes et al, 2011) It is possible that the direct ancestor of cultivated sugarcane, such as Saccharum spontaneum, has a similar mechanism, since sugarcane seems to prefer to absorb N as NH 4 + instead of NO 3 − (Robinson et al, 2011). Confirmation of this information would be valuable to the genetic improvement of sugarcane, and may contribute to the understanding of the limited response of sugarcane to the application of N on certain occasions.…”
Section: Introductionmentioning
confidence: 99%
“…Os acúmulos de N na planta proveniente do fertilizante, na média dos quatro genótipos em 72 horas após a aplicação do N marcado, foram 31 e 42% menores na fonte NO3 -para raízes e parte aérea respectivamente (Figura 3.2 A e B). Serezino (2015) avaliou os influxos de nitrato e amônio em plantas de cana-de-açúcar e verificou que, na condição de suficiência houve uma absorção de nitrato 98% menor em relação a absorção de amônio, diminuindo para 95% quando as plantas estavam em condição de limitação de N.…”
Section: ---------------------No₃⁻ Mg Kg -1 --------------------unclassified
“…Em trabalho desenvolvido sobre cinética de absorção de N, Serezino (2015) comprovou por meio de ensaios de influxos rápido, que a cana-de-açúcar tem preferência de absorção por amônio, verificando também a presença do sistema de absorção de alta afinidade para nitrato e amônio: HATS (high affinity transportation system). Os HATS seriam induzidos quando o status de N na planta diminuem, ou quando as concentrações de N no substrato são baixas.…”
Section: ---------------------No₃⁻ Mg Kg -1 --------------------unclassified
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