Monoammonium Phosphate (MAP): High-Efficiency Fertilizer for Superior Plant Growth Monoammonium Phosphate (MAP) is a widely-used water-soluble fertilizer that provides essential nitrogen and phosphorus—two critical nutrients for healthy plant development. With its high nutrient concentration and versatility, MAP is suitable for a variety of crops, including grains, fruits, vegetables... https://wescochemicalscompany.com/product/map-monoammonium-phosphate/