An organic fertilizer is a plant fertilizer that is derived from organic sources. They are derived from animal matter, animal excreta and vegetable matter (e.g. compost and crop residues). Organic fertilizers differ from chemical fertilizers in that they feed your plants while building a healthy soil. The addition of organic substances used in fertilizer increases the bacterial and fungal activity in the soil. They are considered the more environmentally friendly option. They improve the soil’s structure or its “workability.” Soils with plenty of organic material remain loose and light, retain more moisture and nutrients, and foster growth of soil micro-organisms that promote healthier plants and root development.
The major benefit of organic fertilizers is that they work slowly. They need to be broken down by soil organisms in order for their nutrients to be released which is a time consuming process. Because they work slowly, nothing is wasted. They are consumed as they are released, unlike chemical fertilizers, which are released immediately into the soil. Finally, Overall, organic garden fertilizer not only helps your plants, it improves your soil.