Any substance that is added to the soil to supply those elements required in the nutrition of plants

 

Fertilizer material or carrier

Any substance that contains one or more of the essential elements.

A mechanical or chemical combination of two or more fertilizer materials and which contains two or more essential elements.

 

It contains the three major plant-nutrient elements - nitrogen, phosphorus, and potassium.

 

It refers to the minimum guarantee of the plant-nutrient content in terms of total nitrogen, available phosphorus pentoxide, and soluble potassium oxide (6-24-24 for example).

 

It refers to the relative percentages of nitrogen, phosphorus pentoxide, and potassium oxide (a 6-24-24 grade has a 1-4-4 ration).

 

It is an expression of the quantity and analysis of the materials in a mixed fertilizer.

 

It is a make-weight material added to a mixed fertilizer of fertilizer material to make up the difference between the weight of the added ingredients required to supply the plant nutrients in a ton of a given analysis and 2,000 lbs.

 

It is capable of increasing the acidity of the soil, which is derived principally from the nitrification of ammonium by soil bacteria.

 

It is capable of decreasing the acidity of the soil.

 

It is one that is guaranteed to leave neither an acidic nor a basic residue in the soil.

 

It is the process of mechanically mixing solid fertilizer material.

 

It is one in which the NPK and other materials are completely dissolved.

 

It is the one in which some of the fertilizer materials are suspended as fine particulates.

 

It is a clear or suspension liquid fertilizer.