Inorganic manures usually provide only one of the many substances needed by plants for their growth. Inorganic manures fill a specific nutritional need of the plant, much like a vitamin pill. If the plant is lacking a specific substance, inorganic manures can quickly fill that plant's need. Thus, indiscriminate use of fertilizers may well result in an unbalanced diet for the plant. The most common effect of this in the case of flowering plants is the use of too much nitrogen.
Fertilizers quickly break down to provide specific nutritional needs to plants.
Organics need time to be broken down into the simple chemical substances required by plants. Always use inorganic fertilizers with care. Organic manures vary widely in the amount of plant nutrients that they contain. Some are more concentrated than others. Compost is one of the less concentrated organic manures, but it is extremely valuable in adding extra body to soils especially the sandy ones we are plagued with in most of Florida.