The market taxonomy of Soil Treatment Chemicals by type classifies six functional groups that together constitute the full product portfolio. Herbicides—pre‑emergent, post‑emergent and residual formulations—represent the largest share, typically 45 % of revenue, because weed suppression is a primary driver of crop productivity. Fungicides, split into systemic and contact varieties, capture about 25 % as fungal diseases account for significant yield losses across climates. Insecticides, including organophosphates, neonicotinoids and biopesticides, contribute roughly 15 %, reflecting the need for rapid pest knock‑down in both field and protected agriculture. Nematicides—chemical and biological—hold a modest 7 % share, limited by high application costs and stricter environmental regulations. Soil conditioners such as gypsum, lime and organic amendments occupy close to 5 %, supporting pH adjustment and structure improvement rather than direct pest control. Finally, Growth regulators and bio‑stimulants together account for the remaining 3 %, driven by precision‑agriculture trends that seek to optimise plant vigor with minimal chemical load. Each type’s proportion mirrors its functional necessity and regulatory landscape, collectively shaping the overall market size.