Preparation method of special fertilizer capable of improving tea quality for tea trees

The invention discloses a preparation method of special fertilizer capable of improving the tea quality for tea trees. The preparation method comprises the following steps: firstly, uniformly mixing soybean meal, wormcast, zinc borate, zeolite powder and water, and then raising the temperature and keeping the temperature to obtain a first material; secondly, adding water, Tween 80 and dispropriated rosin into oxidized polyethlene wax, then raising the temperature and stirring; reducing the temperature, and adding hydrated alumina to carry out homogenizing treatment; adding an alginate solution into a mixture, carrying out uniform mixing, and then dropwise adding a calcium nitrate solution in a stirring state, washing with water, drying and calcining to obtain a second material; thirdly, uniformly mixing the first material with the second material, then adding urea, potassium nitrate, monocalcium phosphate, magnesium sulfate, ammonium molybdate, zinc humate and diaminoferric xanthohumate into the mixture, carr