Ca Saturation Determines Crop Growth in Acidic Ultisols Derived from Different Parent Materials
Zhou, Shiwei1; Liang, Wenjun2; Zeng, Tingting2; Liu, Xiao1; Meng, Ling3; Bi, Xiaoli3
Source PublicationEURASIAN SOIL SCIENCE
ISSN1064-2293
2021-08-01
Volume54Issue:8Pages:1215-1227
Keywordexchangeable Ca Al ratio Chinese cabbage wheat pot experiments soil acidity
DOI10.1134/S1064229321080020
Corresponding AuthorBi, Xiaoli(xlbi@yic.ac.cn)
AbstractSoil acidity has become a major yield-limiting factor, but it is unclear which acidity indicator is the best to use for estimating crop yield changes. In this study, four pH-adjusted Ultisols derived from different parent materials were used for Chinese cabbage and wheat pot experiments. Structural equation modeling (SEM), Gompertz and linear-plateau models were used to examine main contribution of soil acidity indices and to determine their critical values. The results showed that Ca saturation had the strongest direct effect on crop biomass and thus acted as the most important factor. The critical values of Ca saturation varied slightly with crops and soils, where it was 84.6, 93.5, 95.2 and 82.9% for Ultisols derived from plate shale, Quaternary red clay, red sandstone and granite, respectively. The critical values of exchangeable Ca and Al, and Al saturation and exchangeable Al : Ca ratio (or Ca : Al ratio) were also determined as 8.21 and 0.44 cmol(c) kg(-1), 6.37%, and 0.069 (or 14.5), respectively. In summary, our findings evidenced that critical Ca saturation has the potential to evaluate the implementation of quality improvement of acidic soils for good crop production.
Funding OrganizationNational Natural Science Foundation of China ; Chinese Postdoctoral Science Foundation ; high-level talent project of Ludong University
Indexed BySCI
Language英语
WOS KeywordCRITICAL PH ; SOIL-PH ; ALUMINUM ; CALCIUM ; YIELD ; WHEAT ; AL ; DEFICIENCY ; STRESS ; CARBON
WOS Research AreaAgriculture
WOS IDWOS:000685135500009
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Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/29662
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心
中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorBi, Xiaoli
Affiliation1.Ludong Univ, Key Lab Mol Module Based Breeding High Yield & Ab, Sch Agr, Yantai 264025, Peoples R China
2.Chinese Acad Agr Sci, Red Soil Expt Stn, Hengyang 426182, Hunan, Peoples R China
3.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264003, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Shiwei,Liang, Wenjun,Zeng, Tingting,et al. Ca Saturation Determines Crop Growth in Acidic Ultisols Derived from Different Parent Materials[J]. EURASIAN SOIL SCIENCE,2021,54(8):1215-1227.
APA Zhou, Shiwei,Liang, Wenjun,Zeng, Tingting,Liu, Xiao,Meng, Ling,&Bi, Xiaoli.(2021).Ca Saturation Determines Crop Growth in Acidic Ultisols Derived from Different Parent Materials.EURASIAN SOIL SCIENCE,54(8),1215-1227.
MLA Zhou, Shiwei,et al."Ca Saturation Determines Crop Growth in Acidic Ultisols Derived from Different Parent Materials".EURASIAN SOIL SCIENCE 54.8(2021):1215-1227.
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