Organic garden fertilizers consist of decomposed plant and animal compounds that are broken down by microbes into a form that living plants can use, usually dissolved in water and taken up through the roots. They are naturally occurring chemical compounds, unlike chemical fertilizers that are compounds created in a lab. Some organic fertilizers contain mostly one main nutrient, for example bat guano has high nitrogen content and very small amounts of phosphorus and potassium. Organic fertilizers also contain other nutrients and trace elements. When you select an organic fertilizer, you need to know where it falls on the N-P-K range so you know on what plants it should be used and when in the plant’s life cycle it will offer the most benefit.
What makes good fertilizer?
“N” = Nitrogen, “P” ...Read more