Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation Article Swipe
Suting Qi
,
Jie Ding
,
Shihong Yang
,
Zewei Jiang
,
Yi Xu
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/su14031337
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/su14031337
Ammonia volatilization is an important nitrogen loss pathway in the paddy field ecosystem which leads to low nitrogen-utilization efficiency and severe atmospheric pollution. To reveal the influence and the mechanism of biochar application on ammonia volatilization from paddy fields under controlled irrigation, field experiments were conducted in the Taihu Lake Basin in China. The experiment consisted of three levels of biochar application (0, 20, and 40 t·ha−1) and two types of irrigation management (controlled irrigation and flood irrigation). Increasing ammonia volatilization occurred after fertilization. Biochar application reduced the cumulative ammonia volatilization from controlled-irrigation paddy fields, compared with non-biochar treatment. The cumulative ammonia volatilization in controlled-irrigation paddy fields with 40 t·ha−1 biochar application was reduced by 12.27%. The decrease in ammonia volatilization was related to the change in soil physical and soil physical–chemical properties and soil microbial activities. The high biochar application (40 t·ha−1) increased the NH4+-N content in soil (p < 0.01) and soil solution (p <0.05), increased by 64.98% and 19.72%, respectively. The application also increased the soil urease activity (p < 0.01), and high biochar application (40 t·ha−1) increased soil urease activity by 33.70%. Ammonia volatilization from paddy fields was significantly correlated with the nitrogen concentration (p < 0.01) in the soil solution and soil urease activity (p < 0.05). Meanwhile, the abundance of ammonia monooxygenase subunit A (AOA) and ammonia-oxidizing bacteria (AOB) with biochar application under controlled irrigation showed an increasing trend with rice growth. The long-term application of biochar may have a relatively strong potential to inhibit ammonia volatilization. In general, the combined application of controlled irrigation and biochar provides an eco-friendly strategy for reducing farmland N loss and improving paddy field productivity.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/su14031337
- https://www.mdpi.com/2071-1050/14/3/1337/pdf?version=1643106558
- OA Status
- gold
- Cited By
- 11
- References
- 52
- Related Works
- 10
- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4210312164Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/su14031337Digital Object Identifier
- Title
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Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled IrrigationWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-01-25Full publication date if available
- Authors
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Suting Qi, Jie Ding, Shihong Yang, Zewei Jiang, Yi XuList of authors in order
- Landing page
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https://doi.org/10.3390/su14031337Publisher landing page
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https://www.mdpi.com/2071-1050/14/3/1337/pdf?version=1643106558Direct link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2071-1050/14/3/1337/pdf?version=1643106558Direct OA link when available
- Concepts
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Biochar, Ammonia volatilization from urea, Irrigation, Chemistry, Agronomy, Paddy field, Environmental chemistry, Ammonia, Volatilisation, Environmental science, Pyrolysis, Organic chemistry, BiologyTop concepts (fields/topics) attached by OpenAlex
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11Total citation count in OpenAlex
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2025: 2, 2024: 7, 2023: 1, 2022: 1Per-year citation counts (last 5 years)
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52Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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