Answer: Fertilizers that have all three of the major nutrients are called Complete fertilizers. Products that are missing one or more of major nutrients are referred to as incomplete.
Fertilizers that have the same percentage of each nutrient are called Balanced. Fertilizers that have varying percentages of the major nutrients are referred to as UnBalanced. These terms don't mean much but they do give you a frame of reference when evaluating the different products on the market.
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