Chemical Properties:
Formula: (NH₄)₂HPO₄
Molecular Weight: 132.06 g/mol
Appearance: White or dark grey granular solid
Solubility: Soluble in water
pH: 8 (10% solution at 25°C)
Melting Point: 155 °C (Decomposes)
Diammonium Phosphate (DAP) is a highly efficient source of phosphorus and nitrogen for plants. It is one of the most widely used phosphate fertilizers in agriculture.
Use Cases:
Agriculture: As a fast-acting fertilizer, DAP is applied at the planting stage to promote root development. It is suitable for a wide range of crops and soil types, enhancing the early growth of plants due to its high phosphorus content.
Horticulture: DAP can be used to prepare fields and soil beds before planting ornamental flowers and trees, providing essential nutrients for bloom and fruit development.
Turf Management: Ideal for use in grasslands and lawns, it encourages robust root systems and is particularly effective in the initial stages of turf establishment.
When using DAP, it’s essential to carefully manage application rates and timing to avoid potential ammonia toxicity to young plants and to prevent runoff that could contribute to water pollution. Consultation with an agronomist or a soil specialist is recommended to tailor the application to the specific needs of your soil and crops.