Ammonia volatilization losses from surface-applied urea with urease and nitrification inhibitors

Soares, Johnny R.; Cantarella, Heitor; Menegale, Marcella Leite de Campos

doi:10.1016/j.soilbio.2012.04.019

Cited by 325 publications

(216 citation statements)

References 36 publications

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“…Analytical-grade DCD (Sigma Aldrich) in powder form containing 650 g kg -1 of N was weighed individually and mixed with urea for each plot at a rate corresponding to 5% of DCD-N in relation to urea-N (Soares et al, 2012;Subbarao et al, 2006;Weiske et al, 2001). The DMPP, also analytical grade and in powder form, was used at a rate of 1% in relation to urea-N (Liu et al, 2013;Subbarao et al, 2006;Weiske et al, 2001).…”

Section: Methodsmentioning

confidence: 99%

“…To prevent NH 3 volatilization, the fertilizers were banded and incorporated to the soil in a small furrow made with a hoe, about 5 cm deep, because NIs can increase NH 3 losses from urea (Soares et al, 2012) and could cause an underestimation of N 2 O emissions (Snyder et al, 2009). The fertilizer band was parallel to and distant around 0.2 m from the sugarcane row, as is commonly done in sugarcane fields in Brazil.…”

Section: Methodsmentioning

confidence: 99%

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Enhanced-Efficiency Fertilizers in Nitrous Oxide Emissions from Urea Applied to Sugarcane

et al. 2015

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The environmental benefits of producing biofuels from sugarcane have been questioned due to greenhouse gas emissions during the biomass production stage, especially nitrous oxide (N 2 O) associated with nitrogen (N) fertilization. The objective of this work was to evaluate the use of nitrification inhibitors (NIs) dicyandiamide (DCD) and 3,4 dimethylpyrazole phosphate (DMPP) and a controlled-release fertilizer (CRF) to reduce N 2 O emissions from urea, applied at a rate of 120 kg ha -1 of N. Two field experiments in ratoon cycle sugarcane were performed in Brazil. The treatments were (i) no N (control), (ii) urea, (iii) urea+DCD, (iv) urea+DMPP, and (v) CRF. Measurements of N 2 O fluxes were performed using static chambers with four replications. The measurements were conducted three times per week during the first 3 mo and biweekly afterward for a total of 217 and 382 d in the first and second seasons, respectively. The cumulative N 2 O-N emissions in the first ratoon cycle were 1098 g ha -1 in the control treatment and 1924 g ha -1 with urea (0.7% of the total N applied). Addition of NIs to urea reduced N 2 O emissions by more than 90%, which did not differ from those of the plots without N. The CRF treatment showed N 2 O emissions no different from those of urea. The results were similar in the second ratoon: the treatment with urea showed N 2 O emissions of 0.75% of N applied N. Application of NIs resulted in a strong reduction in N 2 O emissions, but CRF increased emissions compared with urea. We therefore conclude that both NIs can be options for mitigation of greenhouse gas emission in sugarcane used for bioenergy.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Enhanced-Efficiency Fertilizers in Nitrous Oxide Emissions from Urea Applied to Sugarcane

et al. 2015

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“…Therefore, urease and nitrification inhibitors may enhance the use efficiency of N sources during crop fertilization by reducing losses due to ammonia emission (N-NH 3 ) and nitrate leaching (N-NO 3 -) (Zaman et al, 2008;Soares et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Organic, organomineral, and mineral fertilizers with urease and nitrification inhibitors for wheat and corn under no-tillage

Corrêa

Grohskopf

Nicoloso

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to evaluate soil chemical attributes, leaf nitrogen content, and corn and wheat yields under a no-tillage system in response to the application of organic, organomineral, and mineral fertilizers with or without urease and nitrification inhibitors. The experiment was carried out on the field, with one wheat and two corn crops, on a Rhodic Kandiudox, in a randomized complete block design with six replicates. The evaluated treatments were: control, without fertilization; O, poultry litter as an organic fertilizer; O+I, poultry litter and inhibitors; OM, organomineral fertilizer; OM+I, organomineral fertilizer and inhibitors; U, urea as a mineral fertilizer; and U+I, super urea with the urease inhibitor alone. The use of organic, organomineral, and mineral fertilizers, with or without inhibitors, increased available N content in the 0.00-0.05-m soil layer. In deeper layers, only OM+I in the 0.05-0.10-m layer and U+I in the 0.10-0.20-m layer provided higher contents than the control treatment. Leaf N contents were adequate, regardless of the fertilizer used. The O, O+I, OM, and OM+I treatments increase available P content and base saturation, and decrease H+Al on soil surface. Moreover, all fertilizers increase total grain yield of the two studied crops, in the following order: OM+I > U+I ≥ U > OM ≥ O+I ≥ O.Index terms: Triticum aestivum, Zea mays, agronomic efficiency, poultry litter, nitrogen fertilization, volatilization losses. Fertilizantes orgânicos, organominerais e minerais com inibidores de urease e de nitrificação para trigo e milho em plantio diretoResumo -O objetivo deste trabalho foi avaliar os atributos químicos do solo, o teor de nitrogênio foliar e a produtividade de milho e trigo, em sistema plantio direto, em resposta à aplicação de fertilizantes orgânicos, organominerais e minerais, com ou sem inibidores da urease e da nitrificação. O experimento foi realizado em campo, com um cultivo de trigo e dois de milho, em Nitossolo Vermelho distroférrico, em delineamento de blocos ao acaso, com seis repetições. Os tratamentos avaliados foram: controle, sem adubação; O, fertilizante orgânico de cama de aves; O+I, cama de aves e inibidores; OM, fertilizante organomineral; OM+I, fertilizante organomineral e inibidores; U, ureia como fertilizante mineral; e U+I, superureia com inibidor da urease apenas. O uso de fertilizantes orgânicos, organominerais e minerais, com ou sem inibidores, aumentou o teor de N disponível na camada de 0,00-0,05 m do solo. Nas camadas mais profundas, apenas OM+I, na camada de 0,05-0,10 m, e U+I, na de 0,10-0,20 m, proporcionaram maiores teores do que o tratamento-controle. Os teores foliares de N foram adequados, independentemente do fertilizante utilizado. Os tratamentos O, O+I, OM e OM+I aumentam o teor de P disponível e a saturação por bases, e reduzem H+Al na camada superficial do solo. Além disso, todos os fertilizantes aumentam a produtividade total de grãos das duas culturas estudadas, na seguinte ordem: OM+I > U+I ≥ U > OM ≥ O+I ≥ O.Te...

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“…Ammonia volatilization has been extensively studied in different regions of Brazil, where reported NH 3 -N losses range from 5 to 78 % of N applied as urea depending on the particular environmental conditions (Lara Cabezas et al, 1997;Cantarella et al, 2008;Rojas et al, 2012;Soares et al, 2012;Viero et al, 2014;Viero et al, 2015). The addition of a urease inhibitor such as N-(n-butyl) thiophosphoric triamide (NBPT) to urea has proved to be an effective, technically feasible method to reduce NH 3 -N losses from common urea and increase the efficiency of topdressed N fertilization in corn (Cantarella et al, 2008;Soares et al, 2012;Viero et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The addition of a urease inhibitor such as N-(n-butyl) thiophosphoric triamide (NBPT) to urea has proved to be an effective, technically feasible method to reduce NH 3 -N losses from common urea and increase the efficiency of topdressed N fertilization in corn (Cantarella et al, 2008;Soares et al, 2012;Viero et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Urease Inhibitor and Irrigation Management to Mitigate Ammonia Volatilization from Urea in No-Till Corn

Viero

Menegati

Carniel

et al. 2017

Rev. Bras. Ciênc. Solo

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High nitrogen (N) losses by ammonia (NH 3 ) volatilization from urea can compromise nitrogen fertilization efficiency and corn yield. The purpose of this study was to assess the effects of irrigation management and the addition of the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) on NH 3 -N losses from urea and on corn yield. To this end, two experiments were carried out in the 2011/12 crop season on a sandy clay loam Acrisol in the Central Basin region of Rio Grande do Sul, southern Brazil. Experiment I consisted of two different N sources (urea and urea plus the inhibitor) at a rate of 200 kg ha -1 N and two corn sowing times [viz., an early time (Sept. 3, 2011) and an intermediate time (Oct. 3, 2011)]. Experiment II considered a combination of three irrigation management systems (viz., without irrigation on the fertilization day and on the next 7 days; 20 mm of water immediately before N fertilization; and 20 mm water after N fertilization) and two N sources (urea and urea plus the inhibitor) at 150 kg ha -1 N. A control treatment without topdressed N fertilization was also performed in parallel with the two experiments. The NH 3 -N losses from common urea increased with increasing soil moisture in Experiment I (25 % applied N), and with irrigation before N fertilization in Experiment II (27 % applied N). The inhibitor reduced NH 3 -N losses from urea by 46 to 80 %. Also, irrigation after fertilization reduced ammonia volatilization by 83 % on average, with little effect from the inhibitor. The effects of the inhibitor and post-fertilization irrigation on the mitigation of NH 3 losses by volatilization from urea were not additive; in addition, they led to no increase in corn yield.

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Ammonia volatilization losses from surface-applied urea with urease and nitrification inhibitors

Cited by 325 publications

References 36 publications

Enhanced-Efficiency Fertilizers in Nitrous Oxide Emissions from Urea Applied to Sugarcane

Enhanced-Efficiency Fertilizers in Nitrous Oxide Emissions from Urea Applied to Sugarcane

Organic, organomineral, and mineral fertilizers with urease and nitrification inhibitors for wheat and corn under no-tillage

Urease Inhibitor and Irrigation Management to Mitigate Ammonia Volatilization from Urea in No-Till Corn

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