A Facile Approach To Remediate the Microenvironment of Saline-Alkali Soil

被引：31

作者：

Jiang, Na ^{[1
,2
]}

Cai, Dongqing ^{[2
,3
]}

He, Lulu ^{[1
,2
]}

Zhong, Naiqin ^{[4
]}

Wen, Han ^{[1
]}

Zhang, Xin ^{[1
]}

Wu, Zhengyan ^{[2
,3
]}

机构：

[1] Anhui Agr Univ, Sch Life Sci, Hefei 230036, Peoples R China

[2] Chinese Acad Sci & Anhui Prov, Hefei Inst Phys Sci, Key Lab Ion Beam Bioengn, Hefei 230031, Anhui, Peoples R China

[3] State Forestry Adm, Bioenergy Forest Res Ctr, Hefei 230031, Peoples R China

[4] Chinese Acad Sci, Inst Microbiol, Beijing 100101, Peoples R China

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2015年 / 3卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Saline-alkali soil; Microenvironment; Retaining; Remediate; Attapulgite; MAYA-BLUE; PALYGORSKITE; UREA; PHYTOREMEDIATION; ADSORPTION; GYPSUM;

D O I：

10.1021/sc500785e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile approach to remediate the microenvironment of saline-alkali soil (SS) was developed using a novel fertilizer named saline-alkali soil remediating fertilizer (SSRF). SSRF was obtained by adding a nanocomposite as the saline-alkali soil remediating agent (SSRA) made up of attapulgite (ATP), phosphogypsum (PG), sodium polyacrylate (SP), and weathered coal (WC) to a traditional fertilizer (TF). SSRF could form micro/nanonetworks in SS and display a high retaining capacity on water and fertilizer nutrients because of the hydrogen bonds between SSRA and water molecules, urea, or NH4Cl. In addition, SSRF could effectively reduce the salinity and alkalinity in SS through ion exchange, deactivation, and pH adjusting. Thus, SSRF could significantly improve the microenvironment of SS, which could facilitate the growth of crops and increase the saline-alkaline tolerance of crops.

引用

页码：374 / 380

页数：7

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