METHOD FOR MANUFACTURING SUSTAINED-RELEASE MATRIX-TYPE GRANULAR COMPLEX FERTILIZER AND MATRIX-TYPE GRANULAR COMPLEX FERTILIZER OBTAINED THEREFROM

摘要

The present invention relates to a method for manufacturing a sustained-release matrix-type granular complex fertilizer, capable of improving the availability of fertilizers, and a matrix-type granular complex fertilizer obtained therefrom. The method according to the present invention comprises the steps of: mixing a natural or synthetic polymer as a binder and an extender having nutrient absorption capacity, and drying the mixture followed by grinding the dried mixture to prepare an additive having nutrient absorption capacity; and uniformly mixing the additive having nutrient absorption capacity and a fertilizer ingredient, and drying the mixture to manufacture a matrix-type granular complex fertilizer.