ORGANIC FERTILIZER AND ITS PREPARATION METHOD

摘要

The organic fertilizer contg. starch residue and rape seed oil residue is prepd. by; mixing starch residue contg. 50-70% moisture and rape seed oil residue powder contg. 5% or less moisture(carbon : nitrogen ratio = 20 : 1); and extruding the obtd. mixt. and forming granule type to obtain the final product. A effect of the obtd. organic fertilizer is slow-releasing.