Polymer Coated Urea (PCU) 
Fertiliser granules with polymer (also called resin) coatings can be manufactured as either semi-permeable or impermeable membranes with small pores through which nutrients diffuse.
Polymer Coated Urea (PCU)
Fertiliser granules with polymer (also called resin) coatings can be manufactured as either semi-permeable or impermeable membranes with small pores through which nutrients diffuse.