Slow-release long-acting compound fertilizer for jasmine flowers and preparation method thereof

The invention discloses a slow-release long-acting compound fertilizer for jasmine flowers and a preparation method of the slow-release long-acting compound fertilizer, and relates to the technical field of fertilizer preparation. The jasmine flower-containing slow-release long-acting compound fertilizer is prepared from a functional slow-release film solution, a phosphorus-potassium fertilizer, ferrous sulfate and egg shells, the functional sustained-release membrane solution is prepared from a hypersensitive protein solution, lentinan and citric acid; the citric acid is crosslinked with the harpin protein and the lentinan, so that the stability of the functional slow-release membrane liquid is improved, the water and fertilizer retention capability of soil is improved, and the growth and flowering of the jasmine flowers are promoted; the harpin protein enhances the absorption capacity of the jasmine flowers to the compound fertilizer, the fertilizer efficiency is improved, and the flowering phase is prolong