Application‑based segmentation isolates four principal crop groups: cereals, legumes, oilseeds, and horticulture. Cereals, encompassing wheat, rice, and maize, dominate the market with an estimated 40 % share, reflecting their extensive global acreage and the high phosphorus demand of intensive grain production systems. Legumes, which benefit from both nitrogen fixation and phosphate solubilization, hold a 30 % slice, supported by growing adoption in sustainable rotation schemes. Oilseeds such as soybean and rapeseed account for 20 % of usage, driven by rising oil demand and the need to improve seed oil content through enhanced nutrient availability. Horticultural crops, including fruits, vegetables, and ornamental plants, represent the remaining 10 %, a niche yet high‑value segment where premium pricing justifies biofertilizer deployment. These application segments collectively shape the market’s revenue distribution and guide R&D focus across the Phosphate-Fixing Biofertilizers market taxonomy.