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Effects of biochar application on Suaeda salsa growth and saline soil properties

文献类型： 外文期刊

作者： Sun, Junna 1 ; He, Fuhong 2 ; Shao, Hongbo 3 ; Zhang, Zhenhua 2 ; Xu, Gang 4 ;

作者机构： 1.Ludong Univ, Sch Life Sci, Yantai 264025, Peoples R China

2.Ludong Univ, Inst Geog & Planning, Yantai 264025, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Jiangsu, Peoples R China

4.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China

关键词： Biochar;Saline soil;Plant growth;Soil properties

期刊名称：ENVIRONMENTAL EARTH SCIENCES （ 影响因子：2.784； 五年影响因子：2.867 ）

ISSN： 1866-6280

年卷期： 2016 年 75 卷 8 期

页码：

收录情况： SCI

摘要： Pot experiments were conducted to study the effects of biochar application rates (5, 10, 20 g/kg) and types of wheat straw biochar (WS), corn stalk biochar (CS) and peanut shell biochar (PS) on Suaeda salsa (S. salsa) growth and properties of saline soil in Yellow River Delta. It was found that S. salsa yield increased from 11.7 to 115 % under WS application at a range of 5-10 g/kg compared with control. As biochar rate increased to 20 g/kg, the increment decreased to 102 %. The underground biomass of S. salsa only increased at 20 g/kg rate. The S. salsa growth respond to biochar followed the order of PS > WS > CS. Biochar application generally reduced saline soil pH and the effect was more obvious for WS. The content of total organic matter increased significantly at biochar rate of 10-20 g/kg. WS at higher application rate (20 g/kg) significantly increased available phosphorus content. At the same time, CS increased more available phosphorus content while PS decreased more of exchange sodium percentage. In generally, biochar application improved saline soil quality and enhanced plant growth although these effects should be tested in long-term period.

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