Dig holes downward around the fixed point, and the size of planting holes depends on the specifications of soil balls and root system. The diameter of the planting hole should be 40 cm ~ 60 cm larger than the root spread of soil balls or bare-rooted seedlings, and the hole depth should be 3/4 ~ 4/5 of the hole diameter. The holes with soil balls should be 16 ~ 20 cm larger than those with soil balls, and the holes for planting bare-rooted seedlings should ensure that the roots are fully stretched, and the depth of the holes is generally slightly 10 ~ 20 cm deeper than the soil height. The shape of the hole is generally circular, but the upper and lower diameters must be consistent.
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