Improving saline-alkali soil and promoting wheat growth by co-applying potassium-solubilizing bacteria and cyanobacteria produced from brewery wastewater

Frontiers in Environmental Science

Environmental Science

Mostafa Elshobary¹  Mostafa El-Sheekh¹  Bing Han²  Xiaomeng Li³  Wei Liu³  Lixiu Zhou³  Tongtong Xu³  Huijie Duan³  Haiwen Dong³  Shuhao Huo⁴ 

[1] Botany and Microbiology Department, Faculty of Science, Tanta University, Tanta, Egypt;Liaocheng People’s Hospital, Liaocheng, Shandong, China;Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, Shandong, China;Faculty of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China;School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China;

关键词: cyanobacteria;    potassium-solubilizing bacteria;    saline-alkali soil;    wastewater;    wheat growth promotion;   

DOI  :  10.3389/fenvs.2023.1170734

 received in 2023-02-21, accepted in 2023-05-04,  发布年份 2023

来源: Frontiers

【 摘 要 】

Soil salinization is a serious ecological problem. Bacteria and cyanobacteria both have great potential for saline-alkali soil improvement. However, the effect of co-applying bacteria and cyanobacteria on soil improvement and crop growth promotion in saline-alkali soil remains unclear. In this study, the effects of Paenibacillus sabinae (potassium-solubilizing bacteria) and Leptolyngbya sp. RBD05 (cyanobacteria), produced in brewery wastewater, on soil properties, wheat growth, and wheat stress tolerance were studied by applying them to saline-alkali soil alone or in combination. The study indicated that P. sabinae and Leptolyngbya sp. RBD05 have important roles in increasing wheat growth, N:P ratio, K:Na ratio, proline content, and superoxide dismutase activity, as well as in slowing the decline of soil nutrient content caused by wheat absorption. Compared to the control group, the co-application had the best effect on soil available K content, wheat dry weight, and wheat root length (increased by 26%, 85%, and 70%, respectively); and it was more conducive to promoting the wheat K:Na ratio (increased by 41%), which would better improve the wheat’s saline-alkali stress tolerance. This study provided a new and clean strategy to improve saline-alkali soil quality and promote crop growth by the bacteria and cyanobacteria produced from wastewater treatment.

【 授权许可】

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Copyright © 2023 Duan, Liu, Zhou, Han, Huo, El-Sheekh, Dong, Li, Xu and Elshobary.