Agriculture

Legume rhizodeposition promotes nitrogen fixation by soil microbiota under crop diversification

M. Qiao, R. Sun, et al.

This research by Mengjie Qiao and colleagues unveils how intercropping peanut with maize and oilseed rape enhances peanut’s rhizosphere microbiota, boosting nitrogen fixation and metabolite production. A fascinating approach that highlights the potential of tailored intercropping to enrich soil nitrogen availability!

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Abstract

This study investigates how different crop combinations influence the interaction between peanut plants and their rhizosphere microbiota. A long-term field experiment (8 years) showed that intercropping peanut with maize and oilseed rape led to specific changes in peanut rhizosphere metabolites (increased flavonoids and coumarins) and enhanced nitrogen fixation by both free-living and symbiotic bacteria. These findings suggest that tailored intercropping can improve soil nitrogen availability.

Publisher

Nature Communications

Published On

Apr 04, 2024

Authors

Mengjie Qiao, Ruibo Sun, Zixuan Wang, Kenneth Dumack, Xingguang Xie, Chuanchao Dai, Ertao Wang, Jizhong Zhou, Bo Sun, Xinhua Peng, Michael Bonkowski, Yan Chen

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