Organic fertilizers are naturally occurring fertilizers (e.g. compost, manure). Organic fertilizers have many benefits if it be applied in fertilization of agricultural crops. Use of organic fertilizers continuously in the long-term use will provide benefits:
1. Organic fertilizers capable of forming ion particles that are easily absorbed by plant roots.
2. Improves the soil structure, porosity, and density, thus creating a better plant root environment.
3. Supplies beneficial micro-organisms to soils and growing media.
4. The biggest benefit of organic fertilizer is its value as a soil conditioner. Organic fertilizer increases the water-holding capacity of soil, reducing the frequency you need to water.
5. Organic fertilizers helping to prevent topsoil erosion which is layer contain many nutrients. Helping to prevent topsoil erosion (responsible for desertfication and the Dust bowl.
6. Improves water-holding capacity, thus reducing water loss and leaching in sandy soils.
7. Releasing nutrients at a slower, more consistent rate, helping to avoid a boom-and-bust pattern
8. Mobilizing existing soil nutrients, so that good growth is achieved with lower nutrient densities while wasting less
Organic fertilizers have important chemical functions such as:
1. Provision of macro nutrients (nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur) and micronutrients such as zinc, copper, cobalt, barium, manganese, and iron.
2. Increasing Cation Exchange Capacity (CEC) of land.
Organic fertilizers are very beneficial for improvement agricultural production quality and quantity, reduce environmental pollution, and improve quality of land sustainably. The use of organic fertilizers long term can increase productivity of land and prevent land degradation.
Organic fertilizers are added into the soil will have several phases of renovation by soil microorganisms to become humus. Organic materials also serve as a source energy and food so that it can improve microbial activity in the supply of plant nutrients.