Optimizing net greenhouse gas balance of a bioenergy cropping system in southeast China with urease and nitrification inhibitors

Wang, Xiaofei; Zhang, Ling; Zou, Jianwen

doi:10.1016/j.ecoleng.2015.05.047

Cited by 20 publications

(6 citation statements)

References 39 publications

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“…The results of N 2 O emission studies showed that there was a decrease in emissions by approximately 26.4% through HQ + DCD application (Dong et al, 2018). A similar study described by Wang et al (2015) revealed a 16% decrease in emissions, as compared to urea treatment. During the experiment reported by Dong et al (2018) a number of factors were studied (N application rate, soil organic matter content, soil moisture, temperature, the freeze-thaw cycle).…”

Section: Synthetic Urease Inihibitorssupporting

confidence: 70%

Effectiveness of the use of urease inhibitors in agriculture: a review

Matczuk¹,

Siczek²

2021

Int. Agrophys.

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A b s t r a c t. Urea is one of the most popular fertilizers in the world. In 2018, the global production capacity of urea reached the level of 210 million metric tonnes. Due to the fact that the world population is growing steadily, the demand for food is increasing, and thus also the consumption of urea. The use of urea-based fertilizers has negative consequences in the form of ammonia volatilization. The solution to this problem may be the use of urease inhibitors. Currently, inhibitors of synthetic origin are available on the market, while the use of inhibitors of natural origin is still being under trial. The use of the most commonly used urease inhibitor -NBPT together with urea causes a reduction in ammonia emissions and has a beneficial effect on crop productivity. At the same time, the search for inhibitors of natural origin is underway, which, apart from reducing ammonia volatilization into the atmosphere, could have a positive effect on crop yields. In this paper, recent advances in this field are reviewed.K e y w o r d s: soil urease, urea, urease inhibitors, ammonia volatilization

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Section: Synthetic Urease Inihibitorssupporting

confidence: 70%

Effectiveness of the use of urease inhibitors in agriculture: a review

Matczuk¹,

Siczek²

2021

Int. Agrophys.

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“…The complexity of the CH 4 production and oxidation processes could also explain the lack of significance. On one hand, the increased C inputs from organic fertilizer treatment suggest that more substrate is available for CH 4 formation [47]. On the other hand, organic fertilizer treatment generally leads to lower ammonium content in soil compared with mineral fertilizer treatment.…”

Section: N and C Emissionsmentioning

confidence: 99%

“…Two approaches are used to estimate the SOCSR; the method employed depends on the time scale and available data [47]. In short-term experiments, the SOCSR can be estimated from the difference between organic inputs and soil CO 2 emissions.…”

Section: Socsrmentioning

confidence: 99%

Substitution of Mineral Fertilizer with Organic Fertilizer in Maize Systems: A Meta-Analysis of Reduced Nitrogen and Carbon Emissions

et al. 2020

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Organic fertilizer is an effective substitute for mineral fertilizer that improves crop yield and is environmentally friendly. However, the effects of substitution often vary due to complicated interactions among the organic fertilizer substitution rate (Rs), total nutrient supply, and type of cropping system used. We performed a meta-analysis of 133 maize studies, conducted worldwide, to assess maize yield and environmental performance with substitution of mineral fertilizer with organic fertilizer. At an equivalent nitrogen (N) rate, substituting mineral fertilizer with organic fertilizer increased maize yield by 4.22%, reduced NH3 volatilization by 64.8%, reduced N leaching and runoff by 26.9%, and increased CO2 emissions by 26.8%; however, it had no significant effect on N2O or CH4 emissions. Moreover, substitution with organic fertilizer increased the soil organic carbon sequestration rate by 925 kg C ha−1 yr−1 and decreased the global warming potential by 116 kg CO2 eq ha−1 compared with mineral fertilizer treatment. The net global warming potential after organic fertilizer substitution was −3507 kg CO2 eq ha−1, indicating a net carbon sink. Furthermore, the effect of organic fertilizer substitution varied with the fertilization rate, Rs, and treatment duration. Maize yield and nitrogen use efficiency tended to increase with increasing N application rate following substitution of mineral fertilizer with organic fertilizer. Full substitution reduced N losses more than partial substitution. Further analysis revealed that the yield-optimal Rs for organic N in maize production was 40–60%. Moreover, maize yield and nitrogen use efficiency were further increased after long-term (≥ 3 years) combined use of organic and mineral fertilizers. These findings suggest that rational use of organic and mineral fertilizers improves maize productivity, increases soil organic carbon sequestration, and reduces N and C losses.

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“…Association of HQ and DCD with urea yielded a 35% decline in the net ecosystem exchange of CO 2 . Likewise, the estimated net greenhouse gas balance and greenhouse gas intensity from Jerusalem artichoke cropping system dropped 37% and 15%, respectively [36] .…”

Section: Hydroquinone and Quinonesmentioning

confidence: 99%

“…The use of HQ and DCD was investigated in coastal saline Jerusalem artichoke bioenergy cropping system maintained in a Fluvoaquic soil [36] . Urea (300 kg N ha −1 ) was used by itself or in conjunction with HQ (30 kg ha −1 ) and DCD (9 kg ha −1 ) during artichoke growing season.…”

Section: Hydroquinone and Quinonesmentioning

confidence: 99%