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. 2026 Apr 29;17:1807765. doi: 10.3389/fmicb.2026.1807765

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Copyright © 2026 Chiuta, Pofu and Mashela.

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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Four scatterplots labeled (a) to (d) display Enrichment Index versus Structure Index for various marker types, each represented by points with text labels such as P-P, Ca-P, PV-P, and SSS-P for both UL and ARC groups. Each plot features grid lines at 50 on both axes, with most data points clustered in the upper left quadrant and some variation between panels, showing comparative distributions across different marker categories. — Nematode faunal profiles of soil samples collected from sequence 1 (a), sequence 2 (b), sequence 3 (c), and sequence 4 (d) at the University of Limpopo (UL) and Agricultural Research Council (ARC) fields where P-P = potato monoculture, PV-P = potato-(Velum)-potato, Ca-P = Cucumis africanus-potato, and SSS-P = sweet stem sorghum-potato cropping sequences.