Effect of urease and nitrification inhibitors on N transformation, gaseous emissions of ammonia and nitrous oxide, pasture yield and N uptake in grazed pasture system

Zaman, Mohammad; Saggar, Surinder; Blennerhassett, J. D.; Singh, Jagrati

doi:10.1016/j.soilbio.2009.03.011

Cited by 331 publications

(214 citation statements)

References 39 publications

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“…O uso de inibidores de nitrificação no momento da aplicação dos dejetos pode reduzir as emissões de N 2 O (Vallejo et al, 2005;Damasceno, 2010), que podem ocorrer tanto durante a nitrificação do N amoniacal dos dejetos quanto durante a desnitrificação (Arcara et al, 1999). A redução na taxa de nitrificação até que a planta atinja a fase de maior crescimento aumentará a oportunidade dessa em absorver o NO 3 - (Subbarao et (Zaman et al, 2009;Damasceno, 2010).…”

Section: Introductionunclassified

Inibidor de nitrificação e aplicação parcelada de dejetos de suínos nas culturas do milho e trigo

Schirmann

Aita

Giacomini

et al. 2013

Rev. Bras. Ciênc. Solo

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RESUMONas áreas com produção intensiva de suínos, os dejetos líquidos dos animais constituem importante fonte de nitrogênio (N) às culturas; entretanto, esses dejetos são uma das principais causas de poluição do solo, do ar e da água. É preciso buscar estratégias que reduzam as perdas de N desse resíduo orgânico para o ambiente e que melhorem a sua eficiência agronômica, relativa ao fornecimento de N às culturas comerciais. O objetivo deste trabalho foi avaliar o efeito do uso de inibidor de nitrificação (IN) e da aplicação parcelada de dejetos líquidos de suínos (Dls) sobre o acúmulo de N e a produtividade de milho e trigo em plantio direto. Os tratamentos avaliados constaram da aplicação da dose recomendada de Dls em aplicação única e parcelada (1/3 em pré-semeadura e 2/3 em cobertura), com e sem IN. Além desses quatro tratamentos, foi avaliado um tratamento com adubação mineral (NPK) recomendada ao milho e ao trigo e outro sem IN e sem fertilizantes (testemunha). O IN, à base de dicianodiamida (DCD), foi misturado aos dejetos na dose de 7 kg ha -1 . A aplicação de Dls, em dose única ou parcelada, aumentou o acúmulo de N e a produtividade de milho e trigo, proporcionando resultados similares aos observados com a adubação mineral recomendada às duas culturas. As estratégias de parcelar a dose recomendada de Dls ao milho e ao trigo e de usar a DCD para inibir a nitrificação não influenciaram o acúmulo de N e a produtividade do milho e trigo em plantio direto.

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Section: Introductionunclassified

Inibidor de nitrificação e aplicação parcelada de dejetos de suínos nas culturas do milho e trigo

Schirmann

Aita

Giacomini

et al. 2013

Rev. Bras. Ciênc. Solo

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“…Due to the impacts on NH 3 volatilisation, it is expected that N 2 O emissions may increase relative to urea because of greater N in the system, but some studies have reported decreases in N 2 O with the urease inhibitor (Zaman et al 2009;Singh et al 2013;Ding et al 2014). Use of fine particle sprays and suspensions have been shown to decrease NH 3 and N 2 O loss and increase productivity relative to urea when applied with and without urease or nitrification inhibitors (Di and Cameron 2006;Dawar et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Influence of enhanced efficiency fertilisation techniques on nitrous oxide emissions and productivity response from urea in a temperate Australian ryegrass pasture

Suter

Sultana

Davies³

et al. 2016

Soil Res.

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Abstract. The effect of a nitrification inhibitor on nitrous oxide (N 2 O) emissions across seasons, the effect of a urease inhibitor and a fine particle spray (both targeting ammonia (NH 3 ) loss) on N 2 O emissions, and the potential for productivity benefits and efficiencies by using these enhanced efficiency fertilisers (EEFs) were investigated in temperate pastures. The study compared three treatments over an eight month period (April to December 2010): (1) urea (U), (2) urea with a nitrification inhibitor (3,4-dimethylpyrazole phosphate) (DMPP), and (3) urea with a urease inhibitor (N-(n-butyl) thiophosphoric triamide (NBTPT)) (GU). In autumn, when NH 3 loss was predicted to be high, the effect of urea applied as a fine particle spray (containing urea, NBTPT and gibberellic acid (10 g ha -1 )) (FPA) on N 2 O emissions and productivity was determined.N 2 O emissions from urea applied to pastures were low, and were larger in spring than autumn due to soil moisture and temperature. DMPP was an effective tool for mitigating N 2 O emissions, decreasing fertiliser-induced N 2 O emissions relative to urea by 76% over eight months. However, the urease inhibitor (NBTPT) (GU) increased N 2 O emissions from urea by 153% over eight months. FPA had no impact on N 2 O, but was only examined during periods of low emission (autumn). No significant biomass productivity, agronomic efficiency benefits, or improvements in apparent fertiliser recovery were observed with the DMPP and GU treatments. A significant biomass productivity benefit was observed with the FPA treatment 55 days after fertiliser was applied, most likely because of the gibberellic acid. The outcomes highlight that although DMPP effectively decreased N 2 O emissions it had no impact on biomass productivity compared with urea. The use of the GU increased N 2 O emissions by preserving NH 3 in the soil. To avoid this a lower rate of N should be applied with the urease inhibitor.

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“…Agricultural ecosystems depend heavily on large inputs of N fertilizer to sustain productivity, as naturally fixed N is seldom adequate for highproduction systems (Dinnes et al 2002;Subbarao et al 2006a;Abbasi and Khizar 2012). However, N is a highly dynamic and mobile element and significant N losses occur as a result of NO 3 -leaching, denitrification, runoff, NH 3 volatilization and gaseous emissions of N 2 O, and NO to the atmosphere (Zaman et al 2009). These losses of N have long-term adverse ecological and environmental effects contributing to eutrophication, loss of aquatic biodiversity, and increased N 2 O emissions (Warneke et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…to NO 3 -in soil catalyzed by microbes had been found to be inhibited by NIs included nitrapyrin (2-chloro-6-tricholoro methyl pyridine), sodium azide, sodium chlorate, dicyandiamide (DCD), ATC (4-amino-1-2-4-triazole), N-serve, and certain other compounds (McCarty 1999;Abbasi et al 2003;Fangueiro et al 2009;Khalil et al 2009;Zaman et al 2009;Souri 2010;Pereira et al 2010). The use of these synthetic NIs has been restricted to the academic experimental levels because of high cost, lack of availability, and adverse side effects (Patra and Sukhma 2009).…”

Section: Introductionmentioning

confidence: 99%

Effect of soil-applied calcium carbide and plant derivatives on nitrification inhibition and plant growth promotion

Abbasi

Manzoor

2013

Int. J. Environ. Sci. Technol.

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The aim of this study was to evaluate the relative performance of three nitrification inhibitors (NIs) viz. calcium carbide (CaC 2 ), and plant derivatives of Pongamia glabra Vent. ? -N and NO 3 --N were examined during the study. A second experiment was conducted in a glasshouse using pots to evaluate the response of wheat to these amendments. Results indicated that more than 92 % of the NH 4? initially present had disappeared from the mineral N pool by the end of incubation. Application of NIs i.e., CaC 2 , karanjin, and M. azedarach resulted in a significant reduction in the extent of NH 4? disappearance by 49, 32, and 13 %, respectively. Accumulation of NO 3 --N was much higher in N amended soil 57 % compared to 11 % in N ? CaC 2 , 13 % in N ? karanjin, and 18 % in N ? M. azedarach. Application of NIs significantly increased growth, yield, and N uptake of wheat. The apparent N recovery in N-treated plants was 20 % that was significantly increased to 38, 34, and 37 % with N ? CaC 2 , N ? karanjin, and N ? M. azedarach, respectively. Among the three NIs tested, CaC 2 and karanjin proved highly effective in inhibiting nitrification and retaining NH 4? -N in the mineral pool for a longer period.

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Effect of urease and nitrification inhibitors on N transformation, gaseous emissions of ammonia and nitrous oxide, pasture yield and N uptake in grazed pasture system

Cited by 331 publications

References 39 publications

Inibidor de nitrificação e aplicação parcelada de dejetos de suínos nas culturas do milho e trigo

Inibidor de nitrificação e aplicação parcelada de dejetos de suínos nas culturas do milho e trigo

Influence of enhanced efficiency fertilisation techniques on nitrous oxide emissions and productivity response from urea in a temperate Australian ryegrass pasture

Effect of soil-applied calcium carbide and plant derivatives on nitrification inhibition and plant growth promotion

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