Amelioration of Saline Alkali–Soil and Improvement of Soybean Performance by Organically Modified Coal Gangue
4 affiliations
- 1Institute of Biomedical Engineering, College of Life Sciences, Qingdao University, Qingdao 266071, China
- 2Binzhou Academy of Agricultural Sciences, Binzhou 256600, China
- 3Research Institute of Modern Agricultural Industry Innovation in Yellow River Delta Saline-Alkali Land, Dongying Vocational College, Dongying 257000, China
- 4Shandong Minsheng Group Co., Ltd., Jinan 250000, China
Abstract
Growing global concern over soil salinization has drawn considerable attention to the remediation and amelioration of saline–alkali soils. Coal gangue (M) can be applied to improve saline–alkali soils; nevertheless, its amelioration performance is subject to certain limitations. Organically modified coal gangue (GM) was prepared using alcohol ethoxylate-7 (AEO-7) as the primary modifier, and both M and GM were mixed with a saline–alkali soil at 10%, 20%, 30% and 40% (w/w) in a 28-day incubation and a 28-day soybean pot experiment. At 28 d, compared with the CK group, the GM40% treatment significantly increased the available potassium and alkali-hydrolyzable nitrogen in the saline–alkali soil by 49.91% and 97.10%, respectively, and increased soil organic matter by 10% compared with M40%. The GM groups decreased soil pH relative to CK, alleviated M-induced available phosphorus deficiency, and increased soil urease, peroxidase and catalase activities by 467.77%, 140.37% and 76.29%, respectively. Plant height, shoot dry weight and root dry weight increased by 23.24%, 102.22% and 208.05%. Amplicon sequencing showed that the modified material increased bacterial richness and shifted bacterial community composition. Thus, the organically modified gangue improved soil nutrient pools and soybean performance relative to raw gangue.
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BibTeX
@article{zhao2026amelioration,
title = {{Amelioration of Saline Alkali–Soil and Improvement of Soybean Performance by Organically Modified Coal Gangue}},
author = {Qi Zhao and Zhipeng Yao and Yusheng Niu and Xiangjie Guo and Kunpeng Cui},
journal = {Nanomaterials},
year = {2026},
month = nov,
doi = {10.3390/nano16211436},
url = {https://www.mdpi.com/2079-4991/16/21/1436},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Amelioration of Saline Alkali–Soil and Improvement of Soybean Performance by Organically Modified Coal Gangue
AU - Qi Zhao
AU - Zhipeng Yao
AU - Yusheng Niu
AU - Xiangjie Guo
AU - Kunpeng Cui
PY - 2026
DA - 2026/11/06
JO - Nanomaterials
DO - 10.3390/nano16211436
UR - https://www.mdpi.com/2079-4991/16/21/1436
AB - Growing global concern over soil salinization has drawn considerable attention to the remediation and amelioration of saline–alkali soils. Coal gangue (M) can be applied to improve saline–alkali soils; nevertheless, its amelioration performance is subject to certain limitations. Organically modified coal gangue (GM) was prepared using alcohol ethoxylate-7 (AEO-7) as the primary modifier, and both M and GM were mixed with a saline–alkali soil at 10%, 20%, 30% and 40% (w/w) in a 28-day incubation and a 28-day soybean pot experiment. At 28 d, compared with the CK group, the GM40% treatment significantly increased the available potassium and alkali-hydrolyzable nitrogen in the saline–alkali soil by 49.91% and 97.10%, respectively, and increased soil organic matter by 10% compared with M40%. The GM groups decreased soil pH relative to CK, alleviated M-induced available phosphorus deficiency, and increased soil urease, peroxidase and catalase activities by 467.77%, 140.37% and 76.29%, respectively. Plant height, shoot dry weight and root dry weight increased by 23.24%, 102.22% and 208.05%. Amplicon sequencing showed that the modified material increased bacterial richness and shifted bacterial community composition. Thus, the organically modified gangue improved soil nutrient pools and soybean performance relative to raw gangue.
SN - 2079-4991
ER -