Understanding the biochar's role in ameliorating soil acidity
Extensive acidic soils, which suffer from accelerated soil acidification, are found in southern China. Soil acidity, aluminum toxicity, and nutrient deficiencies severely limited crop productivity in acidic soils. It has been widely reported that crop residue biochars can ameliorate acidic soils and...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2019-07-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311918621483 |
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| author | Ren-yong SHI Jiu-yu LI Ni NI Ren-kou XU |
| author_facet | Ren-yong SHI Jiu-yu LI Ni NI Ren-kou XU |
| author_sort | Ren-yong SHI |
| collection | DOAJ |
| description | Extensive acidic soils, which suffer from accelerated soil acidification, are found in southern China. Soil acidity, aluminum toxicity, and nutrient deficiencies severely limited crop productivity in acidic soils. It has been widely reported that crop residue biochars can ameliorate acidic soils and increase crop productivity. Here, we summarized the positive effects and mechanisms involved in the correction of soil acidity, the alleviation of aluminum toxicity and the increase of soil pH buffering capacity by crop residue biochars. The carbonate, oxygen-containing functional groups and silicates in biochars are the major components responsible for their efficacy in amending acidic soils and resisting soil re-acidification. We conclude that application of crop residue biochars may be a better option than traditional liming to ameliorate acidic soils. Nonetheless, further researches into soil acidification are still required to address some issues that are controversial and poorly understood. |
| format | Article |
| id | doaj-art-defdebe55e9c4b9592ccd6b38c41d4f0 |
| institution | Matheson Library |
| issn | 2095-3119 |
| language | English |
| publishDate | 2019-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-defdebe55e9c4b9592ccd6b38c41d4f02025-08-02T21:21:46ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192019-07-0118715081517Understanding the biochar's role in ameliorating soil acidityRen-yong SHI0Jiu-yu LI1Ni NI2Ren-kou XU3State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, P.R.China; Correspondence SHI Ren-yong, Tel: +86-25-86881184State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, P.R.ChinaNanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, P.R.China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing 210042, P.R.ChinaState Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, P.R.China; Correspondence XU Ren-kou, Tel: +86-25-86881183Extensive acidic soils, which suffer from accelerated soil acidification, are found in southern China. Soil acidity, aluminum toxicity, and nutrient deficiencies severely limited crop productivity in acidic soils. It has been widely reported that crop residue biochars can ameliorate acidic soils and increase crop productivity. Here, we summarized the positive effects and mechanisms involved in the correction of soil acidity, the alleviation of aluminum toxicity and the increase of soil pH buffering capacity by crop residue biochars. The carbonate, oxygen-containing functional groups and silicates in biochars are the major components responsible for their efficacy in amending acidic soils and resisting soil re-acidification. We conclude that application of crop residue biochars may be a better option than traditional liming to ameliorate acidic soils. Nonetheless, further researches into soil acidification are still required to address some issues that are controversial and poorly understood.http://www.sciencedirect.com/science/article/pii/S2095311918621483aluminum toxicitycrop residue biocharspH buffering capacitysoil acidity |
| spellingShingle | Ren-yong SHI Jiu-yu LI Ni NI Ren-kou XU Understanding the biochar's role in ameliorating soil acidity Journal of Integrative Agriculture aluminum toxicity crop residue biochars pH buffering capacity soil acidity |
| title | Understanding the biochar's role in ameliorating soil acidity |
| title_full | Understanding the biochar's role in ameliorating soil acidity |
| title_fullStr | Understanding the biochar's role in ameliorating soil acidity |
| title_full_unstemmed | Understanding the biochar's role in ameliorating soil acidity |
| title_short | Understanding the biochar's role in ameliorating soil acidity |
| title_sort | understanding the biochar s role in ameliorating soil acidity |
| topic | aluminum toxicity crop residue biochars pH buffering capacity soil acidity |
| url | http://www.sciencedirect.com/science/article/pii/S2095311918621483 |
| work_keys_str_mv | AT renyongshi understandingthebiocharsroleinamelioratingsoilacidity AT jiuyuli understandingthebiocharsroleinamelioratingsoilacidity AT nini understandingthebiocharsroleinamelioratingsoilacidity AT renkouxu understandingthebiocharsroleinamelioratingsoilacidity |