简约风土壤植物根系科学研究插画素材

Scientific schematic for top environmental journal: acidic red soil remediation cross-section. Soil with black porous steel slag ceramsite; two cabbages with roots. Left: OH⁻ from ceramsite → Fe/Al-P → Olsen-P (orange arrows). Center: P-solubilizing microbes + acid phosphatase + root exudates (green/blue). Right: Ca²⁺ → Ca-P slow-release precipitates (blue arrows). Style: Clean vector, light background, color-coded processes, 8K, precise labels.