Sun, Yun-peng1,2; Yang, Jing-song1; Yao, Rong-jiang1; Wang, Xiang-ping1; Chen, Xiao-bing3
发表期刊SCIENTIFIC REPORTS
ISSN2045-2322
2020-06-02
卷号10期号:1页码:8946
关键词GAS DESULFURIZATION GYPSUMSALT-AFFECTED SOILSHUMIC-ACIDPYROLIGNEOUS SOLUTIONMANURE COMPOSTCENTRAL CHINASODIC SOILGROWTHRECLAMATIONWATER
DOI10.1038/s41598-020-65730-6
英文摘要China with large area of land planted with crops are suffering secondary salinization in coastal area for the lack of fresh water and saltwater intrusion to the groundwater. The purpose of this study was to investigate the effects of biochar (BC) and fulvic acid (FA) on the amelioration of coastal saline soil and their impact on crop yields under maize-barley rotation system. A three year field experiment was conducted in a saline soil on a farm in coastal area of east Jiangsu Province, China. A maize-barley rotation system had been carried out for ten years with local conventional management before the experiment. The saline soil was amended with BC at rates of 0, 7.5 t ha(-1) (BC1), 15 t ha(-1) (BC2) and 30 t ha(-1) (BC3) alone or combined with fulvic acid (1.5 t ha(-1)) compared with control. Fertilizers were applied under normal planting strategies. The BC was added only once during the four growing seasons, and the FA was applied before each sowing. Soil salinity changed significantly during the three year field experiment. This was mainly due to the great quantity of rain during the period of maize cultivation. Although Na+, Cl- and SO42- in BC and /or FA treatments significantly decreased, the pH value increased up to 9.0 as the CO32-+HCO(3)(-)content increased. Total organic carbon (TOC) and phosphorus (TP) responded positively to biochar addition rate. BC applied with appropriate rate at 15 t ha(-1) (BC2) in combination with FA showed optimal effects on soil salinity amelioration, soil physics properties regulation, soil nutrition improvement and crop yields increase. The TOC and TP was 5.2gkg(-1) and 507mgkg(-1) in BC2+FA treatment, which were lower than BC3 and BC3+FA treatments. However, the highest total grain yield was obtained in the BC2+FA treatment, and the total yield was increased by 62.9% over the CK. This study emphasizes that using combined organic amendment of BC with FA for profitable and sustainable use of salt-affected soils would be practicable.
资助机构Shandong Joint Funds of the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1806215]; National Key Research and Development Project of China [2016YFC0501309, 2016YFD0200303]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41977015]; Key Project of Chinese Academy of SciencesChinese Academy of Sciences [KFZD-SW-112-03-02]; Key Research and Development Projects of Shandong Province [2017cxgc0316]
收录类别SCI
语种英语
关键词[WOS]GAS DESULFURIZATION GYPSUM; SALT-AFFECTED SOILS; HUMIC-ACID; PYROLIGNEOUS SOLUTION; MANURE COMPOST; CENTRAL CHINA; SODIC SOIL; GROWTH; RECLAMATION; WATER
研究领域[WOS]Science & Technology - Other Topics
WOS记录号WOS:000560797800008
引用统计被引频次：10[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30475
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
作者单位1.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China;
2.Univ Chinese Acad Sci, Yuquan Rd, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Yantai Coastal Zone Res Inst, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714Sun, Yun-peng,Yang, Jing-song,Yao, Rong-jiang,et al. Biochar and fulvic acid amendments mitigate negative effects of coastal saline soil and improve crop yields in a three year field trial[J]. SCIENTIFIC REPORTS,2020,10(1):8946.
APASun, Yun-peng,Yang, Jing-song,Yao, Rong-jiang,Wang, Xiang-ping,&Chen, Xiao-bing.(2020).Biochar and fulvic acid amendments mitigate negative effects of coastal saline soil and improve crop yields in a three year field trial.SCIENTIFIC REPORTS,10(1),8946.
MLASun, Yun-peng,et al."Biochar and fulvic acid amendments mitigate negative effects of coastal saline soil and improve crop yields in a three year field trial".SCIENTIFIC REPORTS 10.1(2020):8946.
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