Nitrogen (N), phosphorus (P) and potassium (K) are referred to as primary or macronutrients. This is because they are required by the plants in large amounts relative to other nutrients and they are the nutrients most likely to be found limiting plant growth and development. Use of micronutrient fertilizer materials should only be undertaken with very clear objectives in mind and with a knowledge of previously successful rates of application. Nitrogen promotes rapid growth, chlorophyll formation and protein synthesis. Phosphorus stimulates early root growth. Hastens maturity. Stimulates blooming… Read More →






