文献类型： 外文期刊
作者： Li, Zhaohui 1 ; Zhang, Yingpeng 2 ;
作者机构： 1.Univ Wisconsin Parkside, Dept Geosci, Kenosha, WI 53141 USA
2.Shandong Acad Agr Sci, Soil & Fertilizer Inst, Jinan 250100, Peoples R China
关键词： Slow release fertilizer;Sulfate;Surfactant;Zeolite
期刊名称：DESALINATION AND WATER TREATMENT （ 影响因子：1.254； 五年影响因子：1.553 ）
ISSN： 1944-3994
年卷期： 2010 年 21 卷 1-3 期
页码：
收录情况： SCI
摘要： Use of water soluble fertilizers could result in increased loss of plant nutrient during irrigation and cause non-point source groundwater contamination. In this study the feasibility of using surfactant-modified zeolite (SMZ) as fertilizer additives to control sulfate release was tested in batch and column leaching experiments. The zeolite was able to carry as much as 5, 15, and 25 mmol/kg of sulfate when modified to 100%, 150% and 200% of its external cation exchange capacity (ECEC). Batch tests showed an almost instantaneous and partially reversible sulfate release. Leached with 50 pore volumes (PVs) of water, 70% and 85% of the loaded sulfate was still remained on SMZ modified to 150% and 200% ECEC, respectively. The initial sulfate concentration in leachate was reduced by a factor of three when sulfate loaded SMZ was used compared to mixtures of soluble sulfate and zeolite of the same loading in column leaching experiments. Mass balance showed a 31% recovery after the columns were flushed with 60 PVs of water, similar to the observation in batch tests. The results indicated that SMZ could be a good carrier for sulfate. Thus, leaching of sulfate can be greatly reduced and slow release of sulfate can be achieved if SMZ is used as fertilizer additives.
- 相关文献
作者其他论文 更多>>
-
Spatial Variability of Soil Properties and Portable X-Ray Fluorescence-quantified Elements of typical Golf Courses Soils
作者：Yang, Yujian;Tong, Xueqin;Zhang, Yingpeng
关键词：
-
Water pollution risk from nitrate migration in the soil profile as affected by fertilization in a wheat-maize rotation system
作者：Zhang, Yingpeng;Li, Yan;Gao, Xinhao;Jing, Yongping;Bo, Luji;Zhang, Yingpeng;Li, Yan;Gao, Xinhao;Jing, Yongping;Bo, Luji;Luo, Jiafa
关键词：Controlled release fertilizer; Nitrogen; Use efficiency; Nitrate accumulation
-
Corn yields with organic and inorganic amendments under changing climate
作者：Li, Yan;Zhang, Yingpeng;Sun, Ming;Zhong, Ziwen;Luo, Jiafa;Liu, Ping;Li, Yan;Zhang, Yingpeng;Sun, Ming;Zhong, Ziwen;Zhao, Haijun;Liu, Zhaohui;Gao, Xinhao;Luo, Jiafa
关键词：Long-term fertilization; Climatic factor; Corn productivity; Soil organic matter; Sustainable yield index; Haplic Luvisol
-
ZEOLITE AS SLOW RELEASE FERTILIZER ON SPINACH YIELDS AND QUALITY IN A GREENHOUSE TEST
作者：Li, Zhaohui;Li, Zhaohui;Zhang, Yingpeng;Li, Yan;Zhang, Yingpeng;Li, Yan
关键词：fertilizer;oxalate;spinach;yield;zeolite
-
Effects of Nitrogen and Calcium Nutrition on Oxalate Contents, Forms, and Distribution in Spinach
作者：Zhang, Yingpeng;Li, Yan;Wei, Jianlin;Sun, Ming;Tian, Ye;Li, Zhaohui
关键词：nutrient distribution;hydroponics
