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Effects of biochar-based fertilizers on nutrient leaching in a tobacco-planting soil.
Yunlong Li;  Jianzhong Cheng;  Xinqing Lee;  Yi Chen;  Weichang Gao;  Wenjie Pan;  Yuan Tang
2019
发表期刊Acta Geochim
页码1-7
摘要

Biochar is a soil amendment for increasing soil quality and decreasing nutrient leaching. However, there is little information on the impact of biochar-based fertilizer (BF) on soil nutrient leaching in agricultural soils. We conducted a soil column leaching experiment to study the effects of BF on the leaching of total nitrogen (TN), total phosphorus, and total potassium (TK) in tobacco soils. The distribution characteristics of NH4 ?-N, available P, and available K in soil profiles were analyzed after the application of BF. Biochar was prepared by pyrolysis of fluecured tobacco stems. It was applied at four levels, 0%, 3%, 9%, and 15% (w/w), respectively, to the compound fertilizer. Compared with the control, the leaching loss of soil TN decreased by 8.36%, 6.72%, and 6.45%, and the loss of soil TK decreased by 9.18%, 9.31% and 11.82% in the 3%, 9%, and 15% BF treatments, respectively. However, BF had no significant effect on the P leaching due to the low movement of P in the soil profile. In addition, the BF addition increased the immobilization of NH4 ?-N, available P, and available K in the soil profile. These results indicate that addition of BF to a tobacco-planting soil reduced nutrient leaching, and suggest that BF could be an effective method of applying biochar to agriculture fields.

关键词Biochar-based Fertilizer Soil Column Nutrient Elements Leaching Loss Immobilization
收录类别EI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/10453
专题环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Guizhou Academy of Tobacco Science, Guiyang 550081, China
推荐引用方式
GB/T 7714
Yunlong Li;Jianzhong Cheng;Xinqing Lee;Yi Chen;Weichang Gao;Wenjie Pan;Yuan Tang. Effects of biochar-based fertilizers on nutrient leaching in a tobacco-planting soil.[J]. Acta Geochim,2019:1-7.
APA Yunlong Li;Jianzhong Cheng;Xinqing Lee;Yi Chen;Weichang Gao;Wenjie Pan;Yuan Tang.(2019).Effects of biochar-based fertilizers on nutrient leaching in a tobacco-planting soil..Acta Geochim,1-7.
MLA Yunlong Li;Jianzhong Cheng;Xinqing Lee;Yi Chen;Weichang Gao;Wenjie Pan;Yuan Tang."Effects of biochar-based fertilizers on nutrient leaching in a tobacco-planting soil.".Acta Geochim (2019):1-7.
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