What 3 Macronutrients Are Most Commonly Deficient?
What 3 Macronutrients Are Most Commonly Deficient? The nutrients most commonly deficient in plants are phosphorus, nitrogen, and iron. Phosphorus can be present in the soil, but in quantities too small to be taken up effectively. Nitrogen might be present, but in a form that cannot be used by plants. In alkaline soils, some plants