I Dewa Gede Arsa Putrawan
Fillers are used to adjust the percentage of nutrients in fertilizer with the desired ratio, prevent fertilization, and increase fertilizer weight. Filler dilutes the concentration of active fertilizer material, which can burn the roots and smooth stems. This study aims to study the distribution of particle size and strong pressure granules obtained from the physical granulation of NPK fertilizers with egg leather fillers. Physical granulation is chosen as a substitute for reactive granulation as physical granulation requires lower capital costs and can be handled by the household industry. To facilitate this research designed and built mini disc granulator. The NPK mixer consisting of urea, DAP, and KCL has been embranulated using pan granulators and eggshells as fillers. It can be concluded that hot water produces strong pressure than 50%-molasses. Better granulation is found when the location of the liquid sprayers is divided into two parts, on bulk and in the area roll powder. Keywords: Nutrition in fertilizer, filler, granulation.
Application of appropriate technology
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