Diammonium Phosphate (DAP) is a highly concentrated, quick-acting binary straight fertilizer that delivers an immediate dual-nutrient payload of nitrogen and phosphorus. Formulated as durable light yellow, brown, or black granules, it features a water-soluble phosphorus efficiency threshold exceeding 95%. It serves as a foundational baseline application for all crop classes and soil profiles, as well as a critical premium raw feed material for bulk-blending (BB) and compound NPK processing lines.
Diammonium Phosphate (DAP) is a highly concentrated, quick-acting binary straight fertilizer that delivers an immediate dual-nutrient payload of nitrogen and phosphorus. Formulated as durable light yellow, brown, or black granules, it features a water-soluble phosphorus efficiency threshold exceeding 95%. It serves as a foundational baseline application for all crop classes and soil profiles, as well as a critical premium raw feed material for bulk-blending (BB) and compound NPK processing lines.
Diammonium Phosphate (DAP) represents a premium-grade, highly soluble nutrient solution engineered to quickly correct nitrogen and phosphorus deficiencies across diverse geographic soil profiles. The signature strength of Risso’s DAP lies directly in its high-tier source materials. Synthesized from elite Phosphate Ore characterized by its massive purity reserves, low heavy metal contamination, and high bio-activity, this flagship formulation delivers excellent structural predictability and won the International Gold Medal for consecutive years.
Rapid Root & Seedling Development: Delivering over 95% water-soluble phosphorus, the formula is immediately absorbed by plant roots to stimulate vigorous seedling establishment, prevent root rot, and improve drought and cold stress tolerance.
Tillering & Yield Maximization: Actively promotes strong vegetative tillering, reduces the shedding of essential cotton buds/bolls, increases total spike counts, and directly pushes up dry grain weights.
Flexible Field Deployment: Functions smoothly as an exceptional basal (base) fertilizer, starter seeding nutrient, or deep-applied top dressing. It is highly effective for mechanized spreading in arid, low-rainfall farming belts.
Industrial Blending Feedstock: Operates as a critical uniform granular material for bulk blending (BB) facilities and automated multi-nutrient compound fertilizer granulation networks.
Risso Fertilizer Factory manufactures DAP under strict GB/T10205-2009 implementation frameworks in several highly concentrated commercial ratios:
| Grade Variant | Composition Ratio (N-P2O5-K2O) | Total Active Nutrients (%) | Native pH Value |
| Premium Heavy Grade | 18-46-0 | 64% | 8.0 |
| Standard High Grade | 16-44-0 | 60% | — |
| Mid-Tier Grade | 15-42-0 | 57% | — |
| Utility Grade | 14-39-0 | 53% | — |
Physical Appearance: High-hardness granules available in Light Yellow, Brown, or Black variations.
Granule Sizing: Uniformly calibrated between 2.0 – 4.0 mm for non-clogging agricultural distribution.
Alkaline Incompatibility: Do not mix or co-apply Risso DAP alongside highly alkaline fertilizers (such as lime or plant/grass ash) to prevent chemical antagonism and nitrogen volatilization.
Acidic Soil Buffer window: When dealing with acidic soils, ensure application timing is managed carefully (ideally maintaining a buffer window of at least 5 days from contrasting adjustments) to maximize phosphorus availability and prevent immediate soil fixation.
Packaging Configurations: Packed in standard 50kg bags, available in neutral English configurations or customizable OEM/ODM brand bags with woven PP and structural PE inner liners. Bulk Jumbo bags are also available upon request
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