Characteristics of Phosphorus Adsorption and Desorption in Brown Soil with Presence of Citric Acid and Silicon Fertilizer

ZHANG Guang-cai; WANG Jiao; ZHANG Yun; YAN Xiang-mei; GUAN Lian-zhu

您当前的位置：

首页 >

文章列表页 >

Characteristics of Phosphorus Adsorption and Desorption in Brown Soil with Presence of Citric Acid and Silicon Fertilizer

- Characteristics of Phosphorus Adsorption and Desorption in Brown Soil with Presence of Citric Acid and Silicon Fertilizer
- Bulletin of Soiland Water Conservation Vol. 32, Issue 3, Pages: 49-52(2013)
- 作者机构：
  
  1. 沈阳农业大学土地与环境学院,辽宁,沈阳,110866
  2. 沈阳市农业检测中心,辽宁,沈阳,110034
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
移动端阅览
ZHANG Guang-cai, WANG Jiao, ZHANG Yun, et al. Characteristics of Phosphorus Adsorption and Desorption in Brown Soil with Presence of Citric Acid and Silicon Fertilizer[J]. Bulletin of Soiland Water Conservation, 2013, 32(3): 49-52.
DOI：

ZHANG Guang-cai, WANG Jiao, ZHANG Yun, et al. Characteristics of Phosphorus Adsorption and Desorption in Brown Soil with Presence of Citric Acid and Silicon Fertilizer[J]. Bulletin of Soiland Water Conservation, 2013, 32(3): 49-52. DOI：

摘要

以棕壤为研究对象

采用室内培养的方法

通过加硅酸钙处理、硅酸钙+1mmol/L柠檬酸处理和硅酸钙+2mmol/L柠檬酸处理

研究了柠檬酸存在下施硅对棕壤中磷素吸附和解吸特性的影响

并用Langmuir方程、Freundlich方程与Temkin方程对其进行拟合分析

其中磷吸附解吸试验采用恒温批处理平衡法。结果表明

Langmuir与Temkin模型对处理后棕壤磷的吸附拟合效果最好。硅酸钙+1mmol/L柠檬酸处理的棕壤对磷的吸附量最大

为500mg/kg;硅酸钙+2mmol/L柠檬酸处理的棕壤对磷的解吸量及解吸率最大

最大解吸率可达45.2%。因此

硅酸钙+1mmol/L柠檬酸处理的棕壤对磷肥的储存能力最强

硅酸钙+2mmol/L柠檬酸处理的棕壤对磷活化能力最强

即供磷能力最强。

Abstract

Laboratory experiment with different kinds of treatments on texted brown soil

namely original soil+calcium silicate(CaSiO3)

original soil+1mmol/L citric acid+CaSiO3 and original soil+2mmol/L citric acid+CaSiO3

was conducted to investigate the characteristics of soil phosphorus(P)adsorption and desorption in the presence of citric acid and silicon fertilizer by Langmuir

Freundlich and Temkin equation fittings.The OECD Guideline106batch equilibrium method was used for adsorption and desorption experiments.Results showed that the brown soil P adsorption fitted Langmuir and Temkin models better.The soil added calcium silicate and 1mmol/L citric acid treatment had the maximum adsorbed P

with the maximum adsorption capacity of 500mg/kg.The soil with calcium silicate and 2mmol/L citric acid treatment had the greatest desorption rate of P

with the maximum desorption rate of 45.2%.Therefore

the soil added calcium silicate and 1mmol/L citric acid treatment had the strongest storage capacity for P

and the soil added calcium silicate and 2mmol/L citric acid treatment had the strongest activation ability and supply capacity of P.

关键词

Keywords

references

Views

1642

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Absorption and Desorption Characteristics of Phosphorus in Substrates Used in Slope Ecological Rehabilitation Engineering

Soil Phosphorus Loss and Its Control Measures in Guangdong Province

Characteristics and Influencing Factors of Phosphorus Adsorption on Surface Sediments of Small Shallow Lake

Collapsibility characteristics and microscopic mechanisms of loess in Ili region under freeze-thaw cycles

Influence of microtopography on spatiotemporal distribution of soil moisture during snowmelt period and short-term prediction

Related Author

XIA Zhenyao

NIU Penghui

LIANG Yongzhe

XUE Hailong

WU Bin

XU Wennian

DAI Zhao-fu

WANG Ji-zeng

Related Institution

Collaborative Innovation Center for Geo-hazards and Eco-environment in Three Gorges Area,,, Hubei

College of Civil Engineering and Architecture, China Three Gorges University

College of Biotechnology and Pharmaceutical, China Three Gorges University

Center for Ecological Research, Northeast Forestry University

Wannan Medical College

⁰