Prepare machinery management to be broad, otherwise it should be dense.

The trunk is suitable for machinery and should be 1.5X3.5 or x4 or x5. Manual 1:5X2 or x3 or x3.5

It's the same with ya.

The three-main-branch happy type should be artificial, 2.5X3 or x4x5, or 3X3 or x4 or x5, or 4x3 or x4 or x5.

Close planting needs more seedlings, but the yield is high in the early stage and trees are killed at intervals in the later stage. High technical content.

Sparse planting requires fewer seedlings, early formation, firm structure and high yield in the later stage. Low technical content.