A fertilizer may be made up of only one nutrient (straight fertilizer) or of several nutrients (compound fertilizer).
A compound fertilizer is a fertilizer with a declarable content of at least two primary nutrients which is obtained by chemical processes, mixing or a combination of the two.
A compound fertilizer may be either a complex fertilizer or a mixed fertilizer, depending on its manufacturing process and its granular composition.
26 October 2016
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