Organic fertilizer is all natural and includes things such as bat guano, compost, peat moss, wood ash and manure. These are general soil amendments. They don't burn or harm plants, and they can have long-term positive effects on the soil without damaging groundwater.
Inorganic fertilizer is man-made and typically comes as a powder, pellets, granules or a liquid. Examples of inorganic fertilizers are chemical additives that are designed for plants to directly absorb, such as nitrogen (N), phosphorus (P) and potassium (K).Inorganic Fertilizer
A Bio fertilizer (also bio-fertilizer) is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil, colonize the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of nutrients.