Effect of nitrapyrin on nitrous oxide emission from fallow soils fertilized with anhydrous ammonia

Magalhães, A. M. T.; Chalk, P. M.; Strong, W. M.

doi:10.1007/bf01049121

Cited by 33 publications

(8 citation statements)

References 29 publications

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“…Significantly higher NO 3 -N concentrations were again observed 20 d following fertilization, but not 28 or 36 d following fertilization. In a study on a fallow soil comparing anhydrous NH 3 with and without the nitrification inhibitor nitrapyrin [2-chloro-6-(trichloromethyl) pyridine], Magalhães et al (1984) observed that the rate of soil NO 3 formation was only slightly reduced in the presence of the inhibitor. In two of the soils studied, NO 3 concentrations in both the inhibitor and no-inhibitor treatments exceeded 20 mg NO 3 -N kg -1 soil after 14 d. In contrast to the Halvorson and DelGrosso (2012) results, the data of Venterea et al (2011) showed higher growing season (June-September) NO 3 concentrations (0-15 cm) in soils fertilized with SuperU and ESN than conventional urea.…”

Section: Discussionmentioning

confidence: 99%

Enhanced Efficiency Fertilizers: Effect on Nitrous Oxide Emissions in Iowa

Parkin

Hatfield

2014

Agronomy Journal

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Section: Discussionmentioning

confidence: 99%

Enhanced Efficiency Fertilizers: Effect on Nitrous Oxide Emissions in Iowa

Parkin

Hatfield

2014

Agronomy Journal

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“…In a similar study that compared the effectiveness of nitrapyrin (Instinct) in lowering growing‐season N 2 O emissions from three rates and two timings (preplant and sidedress) of UAN application, Burzaco (2012) found that nitrapyrin reduced N 2 O emissions by about 27%, regardless of N rate or time of UAN application. With nitrapyrin (N‐Serve), 60 to 90% emission reduction was typically reported when nitrapyrin was applied with various N sources (Bremner and Blackmer, 1979; Bremner et al, 1981; Aulakh et al, 1984; Magalhães et al, 1984; Bronson et al, 1992; Chen et al, 2010) and for DCD and DMPP in laboratory and field experiments (Di and Cameron, 2012; Hatch et al, 2005; Carneiro et al, 2010; Zaman et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Nitrification Kinetics and Nitrous Oxide Emissions when Nitrapyrin is Coapplied with Urea–Ammonium Nitrate

Omonode

Vyn

2013

Agronomy Journal

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Simultaneous application of nitrification inhibitors and fertilizer N has the potential to delay nitrification processes and reduce atmospheric N loss through N 2 O emissions. A 2-yr study was conducted to assess the effects of newly available water-soluble nitrapyrin (Instinct) [2-chloro-6-(trichloromethyl)pyridine] on the nitrification kinetics and N 2 O emissions from urea-NH 4 NO 3 (UAN) band applied to somewhat poorly drained and moderately well-drained silt loam soils in Indiana. The UAN fertilizer, with or without nitrapyrin, was injected post-emergence between corn (Zea mays L.) rows that were 76 cm apart. Soil samples were taken at various increments from the band centers at 1-to 2-wk intervals for up to 14 wk and analyzed for NH 4and NO 3 -N concentrations. Nitrification rates were determined using appropriate kinetic models. Greenhouse gas samples were collected weekly for 7 to 10 wk and biweekly thereafter for an additional 2 to 4 wk. Our results showed that UAN nitrification followed first-order kinetics, with significantly greater nitrification rate constants without nitrapyrin. On average, UAN half-life was about 15 d without nitrapyrin and 25 d when coapplied with nitrapyrin. Nitrapyrin reduced N 2 O emissions by up to 44% from sidedress-applied UAN, even though emission quantities varied by location and year due to differences in soil moisture, temperature, and precipitation. These latter variables plus soil NH 4 -N concentrations, in various combinations, accounted for 40 to 50% of the total variability associated with N 2 O emissions. These results can help inform UAN management decisions with regard to use of N stabilizers with UAN in the midwestern United States.

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“…Since mineral N content governs the N supply both to crops and the denitrifiers, increasing the efficiency of mineral N use to crops should result in a lower amount of mineral N available for denitrification. Addition of nitrapyrin to soil after anhydrous ammonia application of 60-80 kg N/ha significantly reduced the loss of N 2 O only in a calcareous soil, which accumulated nitrite in the fertiliser band (Magalhaes et al 1984). Wax-coated calcium carbide significantly reduced the rate of N 2 O emission, whereas nitrapyrin was much less effective in a flooded rice system (Keerthisinghe et al 1993).…”

Section: Flooded Rice Croppingmentioning

confidence: 99%

Nitrous oxide emission from Australian agricultural lands and mitigation options: a review

Dalal

Wang

Robertson³

et al. 2003

Soil Res.

551

325

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Increases in the concentrations of greenhouse gases, carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O), and halocarbons in the atmosphere due to human activities are associated with global climate change. The concentration of N 2 O has increased by 16% since 1750. Although the atmospheric concentration of N 2 O is much smaller (314 ppb in 1998) than of CO 2 (365 ppm), its global warming potential (cumulative radiative forcing) is 296 times that of the latter in a 100-year time horizon. Currently, it contributes about 6% of the overall global warming effect but its contribution from the agricultural sector is about 16%. Of that, almost 80% of N 2 O is emitted from Australian agricultural lands, originating from N fertilisers (32%), soil disturbance (38%), and animal waste (30%).Nitrous oxide is primarily produced in soil by the activities of microorganisms during nitrification, and denitrification processes. The ratio of N 2 O to N 2 production depends on oxygen supply or water-filled pore space, decomposable organic carbon, N substrate supply, temperature, and pH and salinity. N 2 O production from soil is sporadic both in time and space, and therefore, it is a challenge to scale up the measurements of N 2 O emission from a given location and time to regional and national levels.Estimates of N 2 O emissions from various agricultural systems vary widely. For example, in flooded rice in the Riverina Plains, N 2 O emissions ranged from 0.02% to 1.4% of fertiliser N applied, whereas in irrigated sugarcane crops, 15.4% of fertiliser was lost over a 4-day period. Nitrous oxide emissions from fertilised dairy pasture soils in Victoria range from 6 to 11 kg N 2 O-N/ha, whereas in arable cereal cropping, N 2 O emissions range from <0.01% to 9.9% of N fertiliser applications. Nitrous oxide emissions from soil nitrite and nitrates resulting from residual fertiliser and legumes are rarely studied but probably exceed those from fertilisers, due to frequent wetting and drying cycles over a longer period and larger area. In ley cropping systems, significant N 2 O losses could occur, from the accumulation of mainly nitrate-N, following mineralisation of organic N from legume-based pastures. Extensive grazed pastures and rangelands contribute annually about 0.2 kg N/ha as N 2 O (93 kg/ha per year CO 2 -equivalent). Tropical savannas probably contribute an order of magnitude more, including that from frequent fires. Unfertilised forestry systems may emit less but the fertilised plantations emit more N 2 O than the extensive grazed pastures. However, currently there are limited data to quantify N 2 O losses in systems under ley cropping, tropical savannas, and forestry in Australia. Overall, there is a need to examine the emission factors used in estimating national N 2 O emissions; for example, 1.25% of fertiliser or animal-excreted N appearing as N 2 O (IPCC 1996).The primary consideration for mitigating N 2 O emissions from agricultural lands is to match the supply of mineral N (from fertiliser applications, legume-...

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Effect of nitrapyrin on nitrous oxide emission from fallow soils fertilized with anhydrous ammonia

Cited by 33 publications

References 29 publications

Enhanced Efficiency Fertilizers: Effect on Nitrous Oxide Emissions in Iowa

Enhanced Efficiency Fertilizers: Effect on Nitrous Oxide Emissions in Iowa

Nitrification Kinetics and Nitrous Oxide Emissions when Nitrapyrin is Coapplied with Urea–Ammonium Nitrate

Nitrous oxide emission from Australian agricultural lands and mitigation options: a review

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