Diammonium Phosphate, often called DAP, is the most widely used phosphate fertilizer. Seeds and young plants require phosphorus to produce roots, making DAP an excellent starter fertilizer. It is 18% nitrogen and 46% phosphorus.
Diammonium Phosphate 18-46-0 (DAP) 50 lb is a high-analysis, water-soluble starter fertilizer that delivers 18% nitrogen and 46% available phosphate (P₂O₅) to drive aggressive early root development and seedling vigor.
Product Overview & Key Benefits
Nutrient Breakdown (18-46-0): Provides 18% Total Nitrogen (promoting strong vegetative leaf and stem growth) and 46% Available Phosphate (P₂O₅) (powering photosynthesis, energy transfer, and robust root architecture).
Superior Starter Performance: An ideal pre-plant or at-planting starter fertilizer for field crops, vegetables, turf, and orchards where early root establishment is critical.
High Water Solubility: Dissolves rapidly in soil moisture, delivering immediate, plant-available nutrients right to the root zone.
Soil pH Adaptability: Temporarily increases pH immediately around the granule, making it exceptionally effective for boosting phosphorus uptake in acidic or neutral soils.
Convenient 50 lb Packaging: Sized for easy handling, transport, and calibration in commercial seeders, broadcast spreaders, or small-scale agricultural applications.
Ideal Applications & Crops
Field Crops: All plants need phosphorus to develop roots. Corn, soybeans, wheat, barley, rice, canola, and cotton are the most common field crops that demand DAP.
Horticulture & Specialty: Potatoes, tomatoes, citrus, grapes, strawberries, and mixed vegetables
Timing: Best applied during pre-sowing cultivation, fall tilling, or spring sowing as a base or band application.
Quick Tips for Growers
Placement Safety: Avoid direct seed-to-fertilizer contact in high-concentration bands to prevent ammonia burn.
Nutrient Pairing: Supplement with potassium (K) or sulfur if soil tests indicate a broader deficiency, as DAP contains 0% K₂O.
Quantity on Hand: 86
Size: Default title
Product Number: #4955