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Inoculation with Potassium Solubilizing Bacteria and Its Effect on the Medicinal Characteristics of Paris polyphylla var. yunnanensis

Authors :
Shun-Xin Zhao
Qiao-Sheng Deng
Chun-Yang Jiang
Qiang-Sheng Wu
Yan-Bin Xue
Guo-Li Li
Jing-Jing Zhao
Nong Zhou
Source :
Agriculture, Vol 13, Iss 1, p 21 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

Potassium (K) use efficiency in Paris polyphylla var. yunnanensis production is relatively low, and the excessive use of K fertilization has negative environmental impacts. Bacterial isolates can effectively alleviate this situation. The present work aimed to analyze the effects of different combinations of three potassium-solubilizing bacteria (KSB) (Bacillus thuringiensis, B. polymyxa, and Paenibacillus amylolyticus) on K in soil and P. polyphylla var. yunnanensis. The results showed that the contents of different forms of K were increased after the application of KSB. Compared with the control group, the maximum increases of slow-acting K, available K, quick-acting K, exchangeable K, and water-soluble K were 32.6% under inoculation with both P. amylolyticus and B. polymyxa, 73.5% with B. thuringiensis, 114.0% with B. thuringiensis, 83.2% with P. amylolyticus, and 210.0% with B. thuringiensis, respectively. This promoted the conversion of soil K to the form of K with high plant availability. Pseudo-protodiosgenin and diosgenin H contents were improved by KSB inoculations, which promoted medicinal quality of P. polyphylla var. yunnanensis. Correlation analysis showed that there were significantly positive correlations among the five forms of K in the soil in all experimental groups. In conclusion, the inoculation of KSB effectively improved the plant availability of soil K and medicinal quality of P. polyphylla var. yunnanensis, providing a path for sustainable production of P. polyphylla var. yunnanensis.

Details

Language :
English
ISSN :
20770472
Volume :
13
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Agriculture
Publication Type :
Academic Journal
Accession number :
edsdoj.741cf8597e784b54aeccde3edeb07ad3
Document Type :
article
Full Text :
https://doi.org/10.3390/agriculture13010021