Preparation method for organic alkali-prevention fertilizer for saline-alkali soil greening and organic alkali-prevention fertilizer pelletizer

The invention discloses a preparation method for organic alkali-prevention fertilizer for saline-alkali soil greening. The preparation method comprises the steps of preparing materials, crushing the materials through a tree leaf crusher, fermenting the materials through compound microorganisms, uniformly mixing through a stirrer, preparing a granular fertilizer through the organic alkali-prevention fertilizer pelletizer, and the like. The organic alkali-prevention fertilizer is prepared from the following materials in parts by weight: 40-60 parts of amorpha fruticosa tender stems and leaves, 30-40 parts of fallen leaves of broussonetia papyrifera, 10-20 parts of spartina patens tender stems and leaves, 2-4 parts of humic acid and 0.4-0.6 part of sesbania gum powder. The invention further discloses a mated organic alkali-prevention fertilizer pelletizer which comprises a motor, a belt transmission mechanism, a supporting frame, a hopper, pelletizing mould disc, a scraper, a compacting machine and a bagger. Loc