The hemp walnut tree is a large root depth, like loose and breathable soil environment, so the selection of land to build a garden must choose the soil layer is deep, fertile soil, the water table in the 2 meters below the plot of land. Flat or sloping planting area should be leveled, ripened, good alkali and flood prevention.

The mountains should be fixed terraces, for the terrain is more complex, temporarily unable to repair the terraces, you can first fix the fish scale pits, and then gradually expand the tree plate, and finally repair into a compound terraces.

The rowan wood and wild walnut originally grown on the mountain can be left in place and grafted directly.

Before planting the trees, dig the pit well, separating the top layer from the subsoil, with a minimum pit size of no less than 80 x 80 centimeters.

When planting trees, each tree with pig manure 25 to 50 kilograms, fill in the bottom layer, and mixed with the top layer of soil, and then fill the bottom layer of soil, fully irrigated and treaded, put the tree into the pit, according to the level of the original traces of the tree growth to lift the level of the 5 centimeters buried and watered, watered every 5 to 7 days, even watered 3 times.

Before the soil freezes, cultivate the soil around the stump 30 to 50 centimeters, cultivate the soil before pouring a freeze water.