The invention discloses a high-efficiency slow-release 
fertilizer for high-efficiency cultivation of 
coix seeds in 
saline land. The high-efficiency slow-release 
fertilizer is prepared from, by weight, 
oyster shells, 
polylactic acid, activated nano attapulgite, viscid 
loess, almond residues, tea waste residues, rice 
chaff ash, modified sea mud, 
perlite, 
vermiculite powder, VA 
mycorrhiza, 
saccharomycetes, exogenous 
proline, ardealite, a proper amount of 
hydrogen peroxide, a proper amount of 
ammonia water and the like. The almond residues, the tea waste residues, the rice 
chaff ash, the modified sea mud, the 
perlite, the 
vermiculite powder and the like are matched with 
nutrient substances to prepare the coated slow-release 
fertilizer after 
fermentation, and the fertilizer contains rich fermented micromolecular 
organic matter, the inorganic 
moisture regulator vermiculite powder and the like itself, is easily absorbed and utilized by plants. In addition, the pH value of 
saline and alkaline land is automatically regulated by adopting the inorganic 
moisture regulator, and the resistance of the 
coix seeds in the 
saline land is improved. A 
coating layer capable of supplying 
oxygen and dynamically regulating pores is adopted, the fertilizer efficiency time is long, 
organic matter nutrients can be released for a long time, high-efficiency cultivation of the 
coix seeds in the saline land is promoted, and the high-efficiency slow-release fertilizer can be widely applied and popularized.