Ammonia volatilization from nitrogen fertilizers applied to sugarcane straw

Otto, Rafael; Zavaschi, Eduardo; Netto, Gerson José Marquesi de Souza; Machado, Bianca de Almeida; Mira, Acácio Bezerra de

doi:10.5935/1806-6690.20170048

Cited by 26 publications

(21 citation statements)

References 2 publications

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“…Application of NI decreases the oxidation of NH 4 + to NO 2 − minimizing NO 3 − leaching losses (Prasad & Power, 1995). Leaching losses of N in sugarcane fields can be as high as 22% of applied N fertilizer (Ghiberto, Libardi, & Trivelin, 2015), with a loss mean of 6% in sugarcane cultivation (Otto, Zavaschi, Souza‐Netto, Machado, & Mira, 2017).…”

Section: Introductionmentioning

confidence: 99%

Performance of enhanced efficiency nitrogen fertilizers in green‐harvesting sugarcane

Barth

Otto

Mira

et al. 2020

Agrosystems Geosci & Env

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Enhanced efficiency fertilizers (EEF) are of interest for sugarcane (Saccharum spp.) production due to the potential to reduce N losses, and improve crop yield and environmental conditions. This study was conducted to determine the effect of urea with N‐(n‐butyl) thiophosphoric triamide (NBPT) or dicyandiamide (DCD) on NH3 volatilization and sugarcane yield. The NH3 volatilization, the foliar concentration of N and S, and yield of stalk and pol were monitored in two field trials testing six N sources (urea; urea + NBPT; urea + DCD; ammonium sulfate [AS]; ammonium nitrate [AN]; ammonium sulfate nitrate), and three N rates (50, 100, and 150 kg ha−1). The N losses from urea totaled 22 and 18% in Sites 1 and 2, respectively. Treating urea with NBPT reduced NH3 volatilization by 60%. Sugarcane yield increased 8.8; 11.6; and 16.0 Mg ha−1 (Site 1), and 4.5, 9.3, and 14.2 Mg ha−1 (Site 2) with the application of 50, 100, and 150 kg ha−1 N as compared to control, respectively. All N sources increased yields, demonstrating similar efficiency for sugarcane production. Green harvesting sugarcane cultivated in sandy soils with low organic matter concentration is highly responsive to N, showing similar efficiency between EEF and conventional N fertilizers.

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Section: Introductionmentioning

confidence: 99%

Performance of enhanced efficiency nitrogen fertilizers in green‐harvesting sugarcane

Barth

Otto

Mira

et al. 2020

Agrosystems Geosci & Env

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“…The results of the present study show the potential of nitrogen fertilizers with urease inhibitor in reducing N-NH 3 losses by volatilization even when used in no-tillage cultivation systems. However, the urease inhibitor urea should be evaluated with caution, as highlighted by Otto et al (2017), considering the price of these fertilizers in relation to urea and its effects on yield, which was not evaluated in the present study.…”

Section: Source: Elaborated By the Authors (2018)mentioning

confidence: 98%

Ammonia volatilization from Nitrogen topdressing fertilization in second-crop corn cultivated under two management systems

Santos¹,

Pinto

Silva

et al. 2020

R. Agrogeoambiental

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Controlled-release fertilizers are possible strategies to reduce losses through fertilization and increase nitrogen (N) use efficiency. In this context, this study aimed to evaluate the efficiency of N sources applied to second-crop corn cultivation. The experiment was carried out in a randomized block design in a 2 x 4 factorial scheme. Two cultivation systems (conventional and no-tillage) and four N fertilizers (urea pearls pure, urea+Cu+B, NBPT-treated urea and complex mineral fertilizer) with four replications were studied. Losses of N-NH3 by volatilization were evaluated up to 14 days after corn N fertilization. The data were subjected to analysis of variance and the means were grouped by the Scott-Knott test at 5% probability. Under the conditions in which the study was carried out, it was observed that urea pearls pure was the least efficient N fertilizer in restricting N-NH3 through volatilization losses. The most efficient fertilizer was NBPT-treated urea. Losses of N-NH3 by volatilization in the no-tillage system were higher than in the conventional cultivation system.

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“…Dentre as inúmeras fontes nitrogenadas utilizadas, a ureia ocupa destaque, por seu menor custo por unidade do nutriente entre os fertilizantes nitrogenados disponíveis (OTTO et al 2017). A fertilização nitrogenada com adubos amoniacais e amídicos tem se mostrado, por sua vez, responsável pela aceleração do processo de acidificação do solo em pastagens (CAI et al 2015), o qual é um processo contínuo em regiões onde a precipitação excede a evapotranspiração (BOLAN et al 1991).…”

Section: Abstract: Acidity Indicators Natural Pasture Limingunclassified

Acidificação do solo sob fertilização nitrogenada de longo prazo em campo nativo com introdução de azevém

Cecagno

Costa

Anghinoni

et al. 2019

Rev. Ciênc. Agrovet.

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A pastagem nativa é uma importante fonte de alimentos na produção de bovinos e ovinos no bioma Pampa. A introdução do azevém e a fertilização nitrogenada são alternativas que visam intensificar a exploração pecuária de forma mais sustentável. Este trabalho teve por objetivo avaliar os efeitos de doses de nitrogênio em cobertura em pastagem nativa com introdução de azevém nos indicadores de acidez do solo. O experimento consistiu de uma sucessão secundária da pastagem natural submetida ao pastejo contínuo. A área foi calcareada, e foram utilizadas três doses de nitrogênio em cobertura, correspondendo a 0, 100 e 200 kg ha-1 ano-1 de nitrogênio. Foram realizadas avaliação de saturação por bases, saturação por alumínio e pH nas camadas de 0-10 e 10-20 cm. Na camada de 0-10 cm, para cada 100 kg ha-1 ano-1 de nitrogênio aplicado em cobertura, o pH decresceu 0,27 unidades. Na camada de 10-20 cm o pH decresceu de 5,3 até 4,7 e 4,6 com a aplicação de nitrogênio na dose de 100 e 200 kg ha-1 ano-1, respectivamente. A fertilização nitrogenada de longo prazo em campo nativo com introdução de azevém resultou em acidificação do solo até a profundidade de 20 cm.

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Ammonia volatilization from nitrogen fertilizers applied to sugarcane straw

Cited by 26 publications

References 2 publications

Performance of enhanced efficiency nitrogen fertilizers in green‐harvesting sugarcane

Performance of enhanced efficiency nitrogen fertilizers in green‐harvesting sugarcane

Ammonia volatilization from Nitrogen topdressing fertilization in second-crop corn cultivated under two management systems

Acidificação do solo sob fertilização nitrogenada de longo prazo em campo nativo com introdução de azevém

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