THE TREE PLANTING METHOD

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A tree planting method for soil amelioration by excavating a cavity for planting trees in the earth and filling the cavity with soft silica and humus soil is provided to ameliorate soil conditions, thereby improving tree growth. A tree planting method for soil amelioration comprises the steps of : excavating a cavity for planting trees in the earth; filling the lower layer of the cavity with soft silica and the upper layer with humus soil; planting trees into the cavity and growing for a predetermined period; excavating a plurality of auxiliary cavities radially around the cavity; excavating each cavity on the auxiliary cavities and connecting to the cavity to make a communicating hole for communicating the auxiliary cavities with the cavity; and filling the lower layer of the auxiliary cavities with soft silica and the upper layer with humus soil.