Granular Fertilizers

fertilizers in the form of small lumps, or granules. Their advantages are friability, freedom from caking, and improved agrotechnical properties. For example, granular superphosphate decomposes (converts to an unusable state) more slowly than the powdered form, since it has less contact with the soil. Therefore, the phosphorus of pelletized superphosphate is more thoroughly utilized by plants. Granular fertilizers, especially superphosphates, are the most effective for application in rows or in seed drill holes along with the seeds.