Mango has good color, sweet taste and high nutrition. It is deeply loved by people and is one of the top ten fruits in the world. Generally, the first-age saplings are applied with 2 kg of bio-organic fertilizer each time, and the second-age saplings are 3 kg. The method of circular furrow application is adopted. Fruiting trees need adequate supply of various nutrients during the flowering period, early fruit development and new shoots.

According to the growth and development characteristics of mango trees, four fertilizations are generally selected.

Before and after fruit harvesting for the first time, apply 5--10 kg of bio-organic fertilizer, using radial furrow or circular furrow application to restore tree vigor after fruit harvesting, prompting timely stop of the last autumn shoots and accumulation of photosynthetic nutrients It has a good effect in the state of flower bud differentiation.

For the second time in the mango flower bud differentiation period, urge flower fertilizer, usually from October to November, apply 3--8 kg of bio-organic fertilizer in a circular furrow to promote flower bud differentiation and ensure flower development.

The third application of strong flower fertilizer, usually from January to March is the period of flower bud development and flowering. The plant application of bio-organic fertilizer 2-3 kg, circular furrow application can increase the nutrient level of the tree and promote the growth of flower spikes and florets Growth, increase the ratio of sexual flowers, strong flower quality, enhance the ability to resist bad weather such as low temperature and rain, and increase the fruit setting rate.

The fourth time is to apply strong fruit fertilizer from April to May, with 3-5 kg of bio-organic fertilizer, and 500 grams of potassium sulfate to promote rapid fruit growth and coordinate the contradiction between branch and fruit nutrient distribution.