| 摘要 |
PURPOSE: A manufacturing method of slow-releasable complex fertilizer and slow-releasable complex fertilizer are provided to provide organic material according to elution of fertilizer by using ligneous biomass as an extender. CONSTITUTION: Slow-releasable complex fertilizer uniformly contains wood based biomass and fertilizer. The lignin contained in the wood based biomass becomes adhesive by heat pressurization. The weight ratio of the fertilizer to the wood based biomass is 5-15: 35-45. The wood based biomass comprises one or more selected from paper making fiber, rice hulls, straw, coco peat, oil palm fiber and timber. The fertilizer is one or more selected from urea, ammonium nitrate, phosphate ammonium, phospho-gypsum, KCL, first kind composite fertilizer, second kind composite fertilizer and third kind composite fertilizer. A manufacturing method of the slow-releasable complex fertilizer comprises the following steps: uniformly mixing wood based biomass composite with the fertilizer; and heat pressurizing and molding the mixture. |
