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MAP Fertilizer or Monoammonium Phosphate is a widely used source of Phosphorous and Nitrogen. It contains the most phosphorous of any common solid fertilizer.
Understanding the N-P-K Ratio
- Nitrogen (N): The first number indicates the amount of nitrogen, which is crucial for promoting strong stems and leaves, and for developing chlorophyll. High-nitrogen fertilizers are often used to encourage vigorous, green lawn growth.
- Phosphorus (P):The second number shows the phosphorus content, essential for root growth, flower production, and overall plant establishment. Fertilizers high in phosphorus are often marketed as "bloom boosters" and are good for new plantings.
- Potassium (K):The third number signifies the potassium content, which helps plants resist diseases, stresses, and cold, and improves fruit and flower quality.