Solid fertilizers

Solid fertilizers, also known as granular fertilizers, are fertilizers that are provided in dry form, the size and consistency of granular fertilizers varies depending on the brand and the product from which it is derived, the physical size of these fertilizers is from coarse grains like Orange seeds vary from very fine and powdery.

Solid fertilizers are usually designed to be amended into the soil and released over a period of time, this is done by mixing the soil with the fertilizer so that plants can gradually access it.

The ingredients of solid fertilizers, like any other fertilizer, are labeled with the percentage of N-P-K listed on the package. Some growers purchase ingredients individually to create their own custom blends, there are a variety of specialty blends on the market that are suitable for different applications.

There are several types of solid fertilizers, including:

  1. Complete fertilizers: contain all three primary nutrients (nitrogen, phosphorus, and potassium) in a specific ratio.
  2. Nitrogen fertilizers: high in nitrogen and are used to promote leafy growth.
  3. Phosphorus fertilizers: high in phosphorus and are used to encourage root growth and flower production.
  4. Potassium fertilizers: high in potassium and are used to improve overall plant health and stress tolerance.
  5. Organic fertilizers: derived from natural sources such as bone meal, blood meal, and compost.
  6. Slow-release fertilizers: release nutrients over a longer period of time and can be used to reduce the frequency of fertilizing.
  7. Controlled-release fertilizers: release nutrients based on specific environmental conditions, such as temperature and moisture levels.