Definition
Inorganic fertilizer - any fertilizer product whose properties are determined predominantly by its content of mineral matter or synthetic chemical compound. Also, any chemical compound, in liquid or solid form, which contains concentrated amounts of at least one among: nitrogen, phosphorous and potassium. They are subdivided into a) old grades and b) newly locally formulated and imported fertilizers. The latter is also called foliar fertilizers or other inorganic fertilizer grades not falling under the old grades in liquid and in solid forms.