Role of Nutrient-Enriched Biochar as a Soil Amendment during Maize Growth: Exploring Practical Alternatives to Recycle Agricultural Residuals and to Reduce Chemical Fertilizer Demand

doi:10.3390/su11113211

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所

	Role of Nutrient-Enriched Biochar as a Soil Amendment during Maize Growth: Exploring Practical Alternatives to Recycle Agricultural Residuals and to Reduce Chemical Fertilizer Demand
	Kizito, Simon 1,2; Luo, Hongzhen 1; Lu, Jiaxin 1; Bah, Hamidou 3; Dong, Renjie 1; Wu, Shubiao 4
刊名	SUSTAINABILITY
	2019-06-01
卷号	11 期号:11 页码:22
关键词	agricultural residues anaerobic digestate nutrient recycle agroecosystems corn fertilization
ISSN号	2071-1050
DOI	10.3390/su11113211
通讯作者	Wu, Shubiao(wushubiao@gmail.com)
英文摘要	Recycling and value-added utilization of agricultural residues through combining technologies such as anaerobic digestion and pyrolysis could double the recoverable energy, close the nutrient recycle loop, and ensure cleaner agricultural production. This study assessed the beneficial application of biochar to soil to recycle digestate nutrients, improve soil quality, and reduce conventional chemical fertilizer. The addition of digestate-enriched biochar improved soil quality as it provided higher soil organic matter (232%-514%) and macronutrients (110%-230%) as opposed to the unenriched biochar and control treatments. Maize grown in soil amended with digestate-enriched biochar showed a significantly higher biomass yield compared to the control and non-enriched biochar treatments but was slightly lower than yields from chemical fertilizer treatments. The slightly lower yield (20%-25%) achieved from digestate-enriched biochar was attributed to slower mineralization and release of the adsorbed nutrients in the short term. However, digestate-enriched biochar could in the long term become more beneficial in sustaining soil fertility through maintaining high soil organic matter and the gradual release of micronutrients compared to conventional chemical fertilizer. Positive effects on soil micronutrients, macronutrients, organic matter, and biomass yield indicates that enriched biochar could partly replace chemical fertilizers and promote organic farming in a circular economy concept.
资助项目	project of Research Fund for International Young Scientist[51650110489] ; European Union's Seventh Framework Programme for Research, Technological Development and Demonstration[609033]
WOS关键词	ANAEROBIC-DIGESTION ; BIOGAS PRODUCTION ; CROP YIELD ; WASTE ; PYROLYSIS ; SLOW ; PHOSPHATE ; SORPTION ; RELEASE ; MANURE
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000472632200216
资助机构	project of Research Fund for International Young Scientist ; European Union's Seventh Framework Programme for Research, Technological Development and Demonstration
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/26506]
专题	中国科学院水利部成都山地灾害与环境研究所
通讯作者	Wu, Shubiao
作者单位	1.China Agr Univ, Coll Engn, Key Lab Clean Utilizat Technol Renewable Energy, Minist Agr, Beijing 100083, Peoples R China 2.Makerere Univ, Coll Agr & Environm Sci, Sch Forestry Environm & Geog Sci, POB 7062, Kampala, Uganda 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 4.Aarhus Univ, Aarhus Inst Adv Studies, DK-8000 Aarhus C, Denmark
推荐引用方式 GB/T 7714	Kizito, Simon,Luo, Hongzhen,Lu, Jiaxin,et al. Role of Nutrient-Enriched Biochar as a Soil Amendment during Maize Growth: Exploring Practical Alternatives to Recycle Agricultural Residuals and to Reduce Chemical Fertilizer Demand[J]. SUSTAINABILITY,2019,11(11):22.
APA	Kizito, Simon,Luo, Hongzhen,Lu, Jiaxin,Bah, Hamidou,Dong, Renjie,&Wu, Shubiao.(2019).Role of Nutrient-Enriched Biochar as a Soil Amendment during Maize Growth: Exploring Practical Alternatives to Recycle Agricultural Residuals and to Reduce Chemical Fertilizer Demand.SUSTAINABILITY,11(11),22.
MLA	Kizito, Simon,et al."Role of Nutrient-Enriched Biochar as a Soil Amendment during Maize Growth: Exploring Practical Alternatives to Recycle Agricultural Residuals and to Reduce Chemical Fertilizer Demand".SUSTAINABILITY 11.11(2019):22.