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. 2020 Oct 8;11:579719. doi: 10.3389/fmicb.2020.579719

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Copyright © 2020 Zeng, Liu, Lu, Ou, Luo, Li, He, Zhang and Yan.

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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Radar distributions of soil physical factors. The three diagrams have been divided according to the measured values of the soil physical properties. SPa, cropping with patchouli for 1 year; SPb, continuous cropping with patchouli over a number of years; ITb, continuous cropping with patchouli and intercropping with turmeric; and IGb, continuous cropping with patchouli and intercropping with ginger. P, available potassium; AK, available potassium; Ca, exchangeable Ca; EC, electrical conductivity; Cu, available Cu; Zn, available zinc; EB, effective boron; OM, organic matter; AN, alkali-hydrolyzable nitrogen; EMg, effective magnesium; EI, effective iron; EMo, effective manganese.