| Abstract |
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The invention provides a high-pile variety changing method for aged mango trees, which is characterized in that: 1. in an earlier stage of grafting, an annular ditch which is 30 centimeters wide and 40 centimeters deep is dug on the periphery which is 1 to 1.5 meters away from the root of a mango tree, so as to cut off a root system, reduce the transport of moisture and nutrients and achieve the balance between moisture and nutrients after grafting; 2. a position on the mango tree, which is 0.8 to 1 meter away from the ground, is integrally cut once |