Potassium (K) use efficiency in Paris polyphylla var. yunnanensis production is relatively low, and the excessive of K fertilization has negative environmental impacts. Bacterial isolates can effectively alleviate this situation. The present work aimed to analyze effects different combinations three potassium-solubilizing bacteria (KSB) (Bacillus thuringiensis, B. polymyxa, Paenibacillus amylol...