Fertilizer for promoting growth of moringa oleifera and preparation method for fertilizer

The invention relates to the technical field of crop fertilizers and particularly discloses a fertilizer for promoting growth of moringa oleifera and a preparation method for the fertilizer. The fertilizer is prepared from the following raw materials in percentage by weight: 15-30% of urea, 15-20% of phosphate, 15-20% of potassium salt, 5-10% of large seaweeds, 5-10% of pig manure, 5-10% of a volcanic filter material, 5-10% of calcium carbonate stone powder and 5-10% of clay. The raw materials in the fertilizer are in a limited dosage range and are reasonably matched, so that the fertilizer not only can satisfy the nutritional demand of moringa oleifera on major elements and trace elements, but also plays roles of retaining water and fertilizer, ventilating and preventing waterlogging. The fertilizer is used for promoting growth of branches and leaves of moringa oleifera, flowering and bearing fruits and improving the output and quality of the branches and leaves and seeds of moringa oleifera. The preparation method provided by the invention is simple and convenient to operate and is suitable for being industrially popularized and applied.