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. 2022 Aug 4;13:957336. doi: 10.3389/fpls.2022.957336

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Copyright © 2022 Dong, Zhao, Zhou, Liu, Shi, Yuan, Jia, Liu, Song, Wang, Jiang, Liu, Zhang, Zhong, Guo, Wan, Yu and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Correlations among the soil physicochemical properties, flavonoids root exudates, and bacterial community. (A) A network heatmap of correlations between soil physicochemical properties and root exudates and bacterial communities. (B) Mean predictor importance of factors related to plant production based on random forest analysis. The significance levels of each predictor in the random forest analysis are as follows: ^*p < 0.05 and ^**p < 0.01. Plant N: nitrogen acumulation per plant in maize and peanut; TN: soil total N; NH₄⁺–N: soil ammonium N; UE: soil urease; NR: soil nitrate reductase; Pro: soil protease; DHO: soil dehydrogenase; MW00138036: Cyanidin 3-sambubioside 5-glucoside; MW00148166: Cyanidin 3-O-(6-O-p-coumaroyl) glucoside-5-O-glucoside; Shisonin.