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Hao, Xiying; Chang, Chieh-Ming J.; Carefoot, J. M.; Janzen, H. H.; Ellert, B. H.

doi:10.1023/a:1012603732435

Cited by 115 publications

(26 citation statements)

References 33 publications

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“…Nitrogen fertilization generally increases N 2 O emissions from cropping systems, with a positive association between emission and N rate (Archer and Halvorson, 2010;Hao et al, 2001;Dusenbury et al, 2008;Mosier et al, 2006, Halvorson et al, 2008Van Groenigen et al, 2010;Hoben et al, 2011;Snyder et al, 2009). Nitrogen source can also affect soil N 2 O emissions from cropping systems (Halvorson et al, 2010a;Venterea et al, 2010;Hyatt et al, 2010;Sistani et al, 2011;Soon et al, 2011;Drury et al, 2012).…”

mentioning

confidence: 99%

Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Halvorson

Snyder

Blaylock³

et al. 2014

Agronomy Journal

169

110

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mentioning

confidence: 99%

Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Halvorson

Snyder

Blaylock³

et al. 2014

Agronomy Journal

169

110

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“…Consistent with IPCC emission factors, a number of previous studies have found that residue removal decreases N 2 O emissions (Abalos, Sanz-Cobena, Garcia-Torres, Groenigen, & Vallejo, 2013;Jin et al, 2014;Mutegi, Munkholm, Petersen, Hansen, & Petersen, 2010;Yao et al, 2013). However, studies have also shown N 2 O emissions can either increase or remain unchanged with crop residue removal (Congreves, Brown, Németh, Dunfield, & Wagner-Riddle, 2017;Hao, Chang, Carefoot, Janzen, & Ellert, 2001;Lehman & Osborne, 2016;Yao et al, 2013). Increased N 2 O emissions may be due to larger soil temperature fluctuations or changes in moisture/ aeration conditions compared to the practice of incorporating crop residues.…”

Section: Introductionmentioning

confidence: 60%

Soil N₂O emissions as affected by long‐term residue removal and no‐till practices in continuous corn

et al. 2018

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The environmental consequences of residue removal practices to support cellulosic biofuel production remain poorly understood. In the U.S. Midwest, corn (Zea mays L.) stover removal combined with no‐till practices may increase or decrease soil N2O emissions by influencing soil moisture, temperature, and nutrient dynamics, yet empirical evidence from long‐term field experiments is inconsistent. We investigated the effects of residue management (residue retained or removed) and tillage (chisel‐till or no‐till) on cumulative soil nitrous oxide (N2O) emissions, grain yield, and yield‐scaled N2O emissions in a 3‐year study initiated 10 years after treatment implementation in a long‐term, continuous corn experiment in Illinois, United States. Crop yields were affected by treatment in only one of three study years, with the combination of residue removal and no‐till reducing yields compared to both chisel‐till treatments. Cumulative N2O emissions, soil inorganic N concentrations, and yield‐scaled N2O emissions differed over the 3‐year period and were significantly affected by tillage, with no response to residue management. In 2 years, no‐till decreased cumulative N2O emissions and yield‐scaled N2O emissions by an average of 64% and 60%, respectively. Correlations between daily N2O fluxes and soil moisture, temperature, and inorganic N concentrations suggested that the relative importance of these variables changed depending on year and treatment. While more research across a range of sites and management practices is needed, our findings support previous studies which have challenged IPCC methodology assumptions regarding the effects of residue removal on N2O emissions. We conclude there is inherent difficulty in predicting the impacts of residue removal due to the complexity of soil processes underlying N2O emissions coupled with inter‐annual weather variability in this rainfed continuous corn system. Future efforts to evaluate the net greenhouse gas emissions of cellulosic biofuel production may benefit from accounting for this uncertainty.

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“…Bouwman et al [77] indicated that not only does the N rate significantly influence N 2 O emissions from fields but also the N fertilizer type, and the time when the N fertilizer is applied throughout the growing season. Hao et al [78] found that autumn N fertilizer application resulted in significantly greater N 2 O emissions than spring application. Despite being the key factor affecting total GHG emissions in the wheat production system, several studies in the literature found that the increased N fertilizer rate had no positive correlation with grain yield.…”

Section: Mitigation Strategymentioning

confidence: 99%

Optimization of Nitrogen in Durum Wheat in the Mediterranean Climate: The Agronomical Aspect and Greenhouse Gas (GHG) Emissions

Tedone¹,

Ali²,

Mastro³

2018

Nitrogen in Agriculture - Updates

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Durum wheat (Triticum turgidum L. subsp. durum) is the most cultivated cereal crop in the Mediterranean basin, traditionally grown under rainfed conditions using conventional tillage. Agronomical practices, soil type and climate variables are known to influence crop productivity. Their interaction effect is very complex and the time in which they occur strongly affects yield and quality. The nitrogen supply, in combination with climatic conditions, is the main constraint determining the physiological performance, grain yield and quality response of wheat. In addition, the N formulation, fertilizer management, crop sequence, seasonal trends, and the supply of residual and mineralized N influence the response of wheat to N fertilizer. N fertilizer management must be optimized to prevent N deficiency in the critical crop growth period, to avoid yield and quality losses and also prevent the excessive application of N fertilizer, thus reducing the environmental impact. The split application of N fertilizer is a promising strategy that satisfies plant needs and reduces N losses through improved nitrogen use efficiency (NUE). Such a strategy can result in a remarkable reduction in greenhouse gas (GHG) emissions and the carbon footprint of Italian durum wheat, considering that the highest proportion of the total emissions deriving from N fertilizer production and its application.

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Cited by 115 publications

References 33 publications

Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Soil N₂O emissions as affected by long‐term residue removal and no‐till practices in continuous corn

Optimization of Nitrogen in Durum Wheat in the Mediterranean Climate: The Agronomical Aspect and Greenhouse Gas (GHG) Emissions

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Untitled

Cited by 115 publications

References 33 publications

Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation

Soil N2O emissions as affected by long‐term residue removal and no‐till practices in continuous corn

Optimization of Nitrogen in Durum Wheat in the Mediterranean Climate: The Agronomical Aspect and Greenhouse Gas (GHG) Emissions

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Product

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Soil N₂O emissions as affected by long‐term residue removal and no‐till practices in continuous corn