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A potential Mg-enriched biochar fertilizer: Excellent slow-release performance and release mechanism of nutrients
Luo, Weichen1,2; Qian, Ling1,2; Liu, Weiwei3; Zhang, Xin1,2; Wang, Qi1,2; Jiang, Haiyang1,2; Cheng, Beijiu1,2; Ma, Huan1,2; Wu, Zhengyan4,5
2021-05-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Corresponding AuthorMa, Huan(huanma2012@126.com)
AbstractA potential Mg-enriched biochar fertilizer (MBF) was successfully synthesized via pyrolysis of MgCl2-enriched corn straw and high-efficiency reclaiming of N- and P-containing nutrients from biogas effluent. Mathematical modeling and column leaching method demonstrated that the MBF exhibited excellent slow-release performances of total P and N with sustainable release rates. Leaching experiment indicated that the final accumulative release ratios of N and P from MBF were 7 times and 6 times lower than those of chemical fertilizer (CF), respectively. The mechanism study reveals that the P-release performance of MBF was not only controlled by the low solubility of Mg-P precipitates formed on the biochar surface, but also enhanced by the 'P-trap' effect of MgO through re-precipitation process of PO43-. Meanwhile, the N-release behavior of MBF was dominated by the multi-effects of biochar carrier, including the confinement effect and electrostatic attraction for NH4+, as well as the hydrogen bonds and pore-filling effect for N-containing organic matter. In addition, MBF significantly promoted the corn growth and enhanced the nutrient uptake efficiency of corn. These results suggested that MBF may therefore have promising potential in sustainable agriculture application with multiple environmental benefits. (C) 2021 Elsevier B.V. All rights reserved.
KeywordSlow release kinetics Release mechanism Biochar-based fertilizer Magnesium
DOI10.1016/j.scitotenv.2020.144454
Indexed BySCI
Language英语
Funding ProjectScience and Technology Major Project of Anhui Province[17030701029] ; Natural Science Foundation of Higher Education Institutes of Anhui Province, China[KJ2019A0180]
Funding OrganizationScience and Technology Major Project of Anhui Province ; Natural Science Foundation of Higher Education Institutes of Anhui Province, China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000625384700036
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/121126
Collection中国科学院合肥物质科学研究院
Corresponding AuthorMa, Huan
Affiliation1.Anhui Agr Univ, Sch Life Sci, 130 Changjiang West Rd, Hefei 230036, Anhui, Peoples R China
2.Anhui Agr Univ, Natl Engn Lab Crop Stress Resistance Breeding, 130 Changjiang West Rd, Hefei 230036, Anhui, Peoples R China
3.Anhui Agr Univ, Sch Engn, 130 Changjiang West Rd, Hefei 230036, Anhui, Peoples R China
4.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, 350 Shushanhu Rd, Hefei 230031, Anhui, Peoples R China
5.Chinese Acad Sci, Key Lab Environm Toxicol & Pollut Control Technol, Hefei Inst Phys Sci, 350 Shushanhu Rd, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Luo, Weichen,Qian, Ling,Liu, Weiwei,et al. A potential Mg-enriched biochar fertilizer: Excellent slow-release performance and release mechanism of nutrients[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,768.
APA Luo, Weichen.,Qian, Ling.,Liu, Weiwei.,Zhang, Xin.,Wang, Qi.,...&Wu, Zhengyan.(2021).A potential Mg-enriched biochar fertilizer: Excellent slow-release performance and release mechanism of nutrients.SCIENCE OF THE TOTAL ENVIRONMENT,768.
MLA Luo, Weichen,et al."A potential Mg-enriched biochar fertilizer: Excellent slow-release performance and release mechanism of nutrients".SCIENCE OF THE TOTAL ENVIRONMENT 768(2021).
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