NOVELTY - A nail-shaped composite microbial fertilizer, is formed by microelement of sulfate, microelement of inorganic oxide and urea. The composite microbial fertilizer is prepared into nail shape. The single nail-shaped composite microbial fertilizer (4) comprises nail point (1) containing the bottom part and the nail body (2) containing the middle part, and the nail point and the nail body are connected into a whole.    USE - As nail-shaped composite microbial fertilizer for applied in fixing slope protection grass (claimed).    ADVANTAGE - The nail-shaped composite microbial fertilizer is capable of being applied in fixing slope protection turf; and has the advantages of simple structure, low cost, little environmental pollution and good fertilizer efficiency.    DETAILED DESCRIPTION - A nail-shaped composite microbial fertilizer, is formed by microelement of sulfate, microelement of inorganic oxide and urea. The composite microbial fertilizer is prepared into nail shape. The single nail-shaped composite microbial fertilizer (4) comprises nail point (1) containing the bottom part and the nail body (2) containing the middle part, and the nail point and the nail body are connected into a whole. The composite microbial fertilizer is further installed with a nail cap (3). The composite microbial fertilizer is prepared into U-shaped nail shape. The single U-shaped nail shape composite microbial fertilizer comprises the U-shaped nail body and the nail point installed at two ends of the U-shaped nail body. The nail point and the U-shaped nail body are connected into a whole. An INDEPENDENT CLAIM is included for preparing the nail-shaped composite microbial fertilizer, involving: preparing the material with the microelement sulfate, microelement inorganic oxide and urea according to the mass percentage ratio, mixing uniformly, obtaining the mixed material, then preparing the nail-shaped or U-shaped nail microbial fertilizer forming module, extruding and prilling via mold and extruding granulating machine, then separating selection, sun drying and preparing into the finished product.    DESCRIPTION OF DRAWING(S) - The figure shows a view of the nail- shaped composite fertilizer.    Nail point (2) Nail body (1)    Nail cap (3)    Single nail-shaped composite microbial fertilizer (4)    Length of composite microbial fertilizer (H)