Effects of N Fertilizer Application on Soil N2O Emissions and CH4 Uptake: A Two-Year Study in an Apple Orchard in Eastern China

Xie, Baohua; Gu, Jiangxin; Yu, Junbao; HAN, Guang-Xuan; Zheng, Xunhua; Yu, Xu; Hua, Lin

doi:10.3390/atmos8100181

Cited by 21 publications

(6 citation statements)

References 42 publications

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“…In this study, average daily N 2 O emissions from wolfberry receiving 0-667 kg•ha −1 N ranged from 6.55-67.57 g N 2 O-N ha −1 •d −1 . Similarly, in eastern China, average daily N 2 O emissions from an apple orchard were 71.78 g N 2 O-N ha −1 •d −1 [20]. At a similar nitrogen rate, we report lower N 2 O emissions.…”

Section: Effects Of N Fertilizer Rate On Yield Ghg Emissions Gwp and ...supporting

confidence: 63%

“…Optimizing N fertilizer applications and using nitrification inhibitors may be effective strategies to improve N use rate and reduce the environmental costs of agricultural production [16,17]. It was revealed that N 2 O emission significantly decreased due to reduced N fertilizer rates [18][19][20][21]. The cumulative N 2 O emission decreased by 68.8% during the experiment when N fertilizer was decreased by 53.3% [22].…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen Fertilizer and Nitrapyrin for Greenhouse Gas Reduction in Wolfberry Orchards on the Qinghai–Tibetan Plateau

YunZhang

Huang

et al. 2022

Agriculture

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Wolfberry production has become a major agro-industry on the Qinghai–Tibetan Plateau, causing increased nitrogen (N) pollution and greenhouse gas (GHG) emissions. Appropriate N fertilizer rate and nitrification inhibitors may mitigate GHG emissions and improve N use efficiency. A 2-year field experiment was conducted to measure the effects of N application rate and nitrapyrin on GHG emissions, to reduce GHG emissions and N pollution. We used eight treatments: Control (CK), 667 kg·ha−1 N (Con), 400 kg·ha−1 N (N400), 267 kg·ha−1 N (N267), 133 kg·ha−1 N (N133), 400 kg·ha−1 N plus 2.00 kg·ha−1 nitrapyrin (N400I2.00), 267 kg·ha−1 N plus 1.33 kg·ha−1 nitrapyrin (N267I1.33) and 133 kg·ha−1 N plus 0.67 kg·ha−1 nitrapyrin (N133I0.67). Compared with Con treatment, N400 maintained fruit yield and increased net income, but saved 40% of N fertilizer and decreased the cumulative N2O emission by 14–16%. Compared to N400, N267 and N133 treatments, the cumulative N2O emission of N400I2.00, N267I1.33 and N133I0.67 treatments was reduced by 28.5–45.1%, 26.6–29.9% and 33.8–45.9%, respectively. Furthermore, N400I2.00 resulted in the highest wolfberry yield and net income. The emissions of CH4 and CO2 were not significantly different among treatments. Moreover, the global warming potential (GWP) and the greenhouse gas emission intensity (GHGI) of N400I2.00 declined by 45.6% and 48.6% compared to Con treatment. Therefore, 400 kg·ha−1 N combined with 2.00 kg·ha−1 nitrapyrin was shown to be a promising management technique for maintaining wolfberry yield while minimizing GWP and GHGI.

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Section: Effects Of N Fertilizer Rate On Yield Ghg Emissions Gwp and ...supporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Nitrogen Fertilizer and Nitrapyrin for Greenhouse Gas Reduction in Wolfberry Orchards on the Qinghai–Tibetan Plateau

YunZhang

Huang

et al. 2022

Agriculture

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“…[61][62][63]. High N 2 O emissions were observed in all treatments during the initial stage of fertilizer application, suggesting that addition of the N substrate increased microbial activity [60]. However, in general, the averaged N 2 O emissions were lower in the fertilizer treatments, because the study area was N limited.…”

Section: Nomentioning

confidence: 84%

Optimal Coupling of Straw and Synthetic Fertilizers Incorporation on Soil Properties, Active Fe Dynamics, and Greenhouse Gas Emission in Jasminum sambac (L.) Field in Southeastern China

et al. 2019

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In agriculture, synthetic fertilizers have played a key role in enhancing food production and keeping the world’s population adequately fed. China’s participation is essential to global efforts in reducing greenhouse gas (GHG) emissions because it is the largest producer and consumer of synthetic fertilizers. A field experiment was conducted in a Jasminum sambac (L.) field to evaluate the impact different doses of fertilizers (half, standard, and double) and their combination with straw on ecosystem (including crop plants and soil) GHG emissions. The results showed that in comparison with the control or straw treatments, the straw + standard fertilizer treatment increased the soil water content. The fertilizer treatments decreased the soil pH, but the straw and combination treatments, especially the straw + standard fertilizer treatment, had higher soil pH in comparison with the fertilizer treatment. The active soil Fe (Fe2+ and Fe3+) concentration was slightly increased in the straw + standard fertilizer treatment in comparison with the control. Moreover, fertilizer increased the CO2 emission, and we detected a positive interaction between the straw application and the double fertilization dose that increased CO2 emission, but the straw + standard fertilizer treatment decreased it. Fertilizer decreased CH4 and N2O emissions, but when straw and fertilizer treatments were applied together, this increased CH4 and N2O emissions. Overall, considering the soil properties and GHG emissions, the straw + standard fertilizer treatment was the best method to enhance soil water retention capacity, improve soil acid, and mitigate greenhouse gas emissions for sustainable management of J. sambac dry croplands.

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“…Therefore, this helps explain the growth patterns of the emission peaks of N 2 O in the present study as the addition of nitrogen to pasture and agriculture (Figure 4B,C) increases. If soil moisture and available carbon are not the limiting factors, variations in nitrogen availability in the soil can also induce N 2 O emissions [12,28,55].…”

Section: Effect Of Nitrogen Addition To the Soil On N 2 O Emissionmentioning

confidence: 99%

Land Use, Temperature, and Nitrogen Affect Nitrous Oxide Emissions in Amazonian Soils

et al. 2022

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Nitrous oxide (N2O) is one of the main gases emitted from soils, and the changes in land use in the Amazon may alter gas emission patterns. The objective of this study was to evaluate the effects of land use, temperature, and nitrogen on N2O emissions in soils in the Amazon. For this, three treatments randomized, with five repetitions, were incubated to quantify N2O emissions: (i) three different land uses (wet rainforest, pasture, and agriculture); (ii) different temperatures (25, 30, 35, and 40 °C); and (iii) different nitrogen additions to the soil (0, 90, 180, and 270 kg of N ha−1). Our results show that land use alters the flux of N2O, with the highest emissions observed in agricultural soils compared to that in forest and pasture areas. The change in soil temperature to 30 °C increased N2O emissions with land use, at which the emission of N2O was higher in the pasture and agriculture soils. Our results showed that the emission of N2O in the soil of the Amazon rainforest was low regardless of the temperature and nitrogen treatment. Therefore, the change in land use alters the resilience of the ecosystem, providing emissions of N2O.

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Effects of N Fertilizer Application on Soil N2O Emissions and CH4 Uptake: A Two-Year Study in an Apple Orchard in Eastern China

Cited by 21 publications

References 42 publications

Nitrogen Fertilizer and Nitrapyrin for Greenhouse Gas Reduction in Wolfberry Orchards on the Qinghai–Tibetan Plateau

Nitrogen Fertilizer and Nitrapyrin for Greenhouse Gas Reduction in Wolfberry Orchards on the Qinghai–Tibetan Plateau

Optimal Coupling of Straw and Synthetic Fertilizers Incorporation on Soil Properties, Active Fe Dynamics, and Greenhouse Gas Emission in Jasminum sambac (L.) Field in Southeastern China

Land Use, Temperature, and Nitrogen Affect Nitrous Oxide Emissions in Amazonian Soils

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