Encapsulated fertilizer comprising essential oils, polymers and macronutrients and method of preparation thereof
AssigneeYpf Tecnologia S.A.
InventorsSebastián Reinoso, Aline Schneider Teixeira, Marcos Coustet, José Roberto Leunda
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Abstract
An encapsulated fertilizer comprising a core comprising a fertilizer compound in a plurality of layers comprising a fertilizer compound, a polymer, micronized sulfur and starch. A method for preparing an encapsulated fertilizer comprising four layers. The encapsulated fertilizer has a homogeneous coating of its surface, is devoid of cracks and preferential paths or channels, so that the fertilizer compound can be released to the environment in a controlled manner.
Claims13
An encapsulated fertilizer comprising:
- a core comprising a fertilizer compound,
- a first layer comprising an organic compound, the first layer surrounding the core,
- a second layer surrounding the first layer, said second layer comprising a polymer, micronized sulfur and starch,
- a third layer surrounding the second layer and a fourth layer surrounding the third layer, each of said third and fourth layers comprising micronized sulfur and starch.
A method for preparing an encapsulated fertilizer comprising four layers, wherein the method comprises the steps of:
- a) providing a core comprising a fertilizer compound,
- b) spraying a solution comprising an organic compound, thereby forming a first layer,
- c) adding a solution comprising a polymer and micronized sulfur and sprinkling starch, thereby forming a second layer surrounding the first layer,
- d) adding a solution comprising micronized sulfur and sprinkling starch, thereby forming a third layer surrounding the second layer, and
- e) adding a solution comprising micronized sulfur and sprinkling starch, thereby forming a fourth layer surrounding the third layer.
Dependencies are inferred from the claim text.