Jackfruit fertilizer and preparation method thereof

The invention discloses a jackfruit fertilizer and a preparation method thereof. The jackfruit fertilizer is prepared from the following raw materials in parts by weight: 15 to 21 parts of urea, 12 to 19 parts of calcium-magnesia phosphate fertilizer, 13 to 20 parts of potassium sulfate, 1 to 1.5 parts of calcium silicate, 0.5 to 1 part of magnesium sulfate, 1 to 1.5 parts of potassium sulphate, 1 to 1.5 parts of boric acid, 0.01 to 0.1 part of chelating zinc, 0.01 to 0.1 part of chelating copper, 0.01 to 0.1 part of manganese sulfate heptahydrate, 0.01 to 0.1 part of sodium molybdate, 0.01 to 0.1 part of ferric trichloride, 0.1 to 0.2 part of amino acid chelated selenium, 30 to 50 parts of organic matter, 1 to 2 parts of amino acid, 3 to 5 parts of humic acid, 0.5 to 1 part of fertilizer efficiency synergist, 1 to 2 parts of soil conditioner and 0.5 to 1 part of long-acting and slow-releasing agent. Since the matching content of nitrogen, phosphorus and potassium of the jackfruit fertilizer is reasonable, the jackfruit fertilizer contains the organic matter, the amino acid, the humic acid, the medium element calcium, magnesium and sulfur fertilizers, the trace element boron, zinc, copper, manganese, molybdenum and ferrous fertilizers, and the amino acid chelated selenium fertilizer, and meanwhile, the jackfruit fertilizer contains the fertilizer efficiency synergist, the soil conditioner and the long-acting and slow-releasing agent, on the basis that various nutrient elements are provided, the effects of nitrogen fixation, phosphor activation and potassium releasing can also be achieved, and the defects of insufficient function, unreasonable nutrient content and the like in the prior art are overcome.