Article in English: Using a shovel, dig the hole in which you’ll plant your tree. You want to make sure that it is large enough to accommodate the tree’s size and give it plenty of room to grow and take root.  Dig a hole that is 2-3 wider and about as deep than the root ball. This will give the tree enough room to fit and allow fresh roots to grow without stress.  Try to dig the hole with a small "pedestal" of dirt in the center of the hole where the tree will rest. The hole should be a little deeper around the edges but there should be a pedestal of dirt in the center where the root ball sits. This pedestal prevents the root ball from sitting continuously in water. Any excess water will naturally flow to the deeper areas of the hole around the edges where the roots can drink from if needed. Measure the hole to see if it is wide and deep enough. If necessary, dig out more soil to reach the desired depth and width.  Put a light coating of superphosphate in the hole to promote a healthy root system. Using a mixture of compost and the soil you dug out while you prepared the hole, backfill (or refill) the hole. Make sure you have enough soil to support the roots while giving them room to grow.  Backfill three quarters of the hole with existing dirt, one quarter with compost or composted manure as needed. It’s important to make sure that there are no air pockets around the roots as you backfill the hole. In order to get rid of any air pockets that might be present, backfill only part of the hole and then lightly tamp it down with your hands or the shovel. Do this for subsequent layers. When tamping down backfill, make sure to proceed gently and also not use your feet because you could trample the roots. Use some compost or composted manure, if needed. If the soil that you currently have is not rich, has clay-like qualities or has the consistency of dust or sand, the addition of manure or compost will give the tree a great start in life. If the compost or manure smells, it hasn’t been properly composted and shouldn’t be used because...

Summary in Vietnamese:
Đào hố để trồng cây. Lấp đất vào hố.