What is the content of Arbor Day?

Trees are the guards against the wind and sand. If you don't want the world to become a desert, plant trees. The campus will be green and pleasant, with flowers blooming everywhere and laughter lasting forever.

Trees and mountains are green and the land of China is full of spring.

On Arbor Day, we should plant trees, protect the environment, and make no mistake, purify the air, absorb pollution, prevent wind, control sand, protect water and soil, and create happiness for future generations. 3. 12 arbor day, everyone has one more tree and one more love.

Arbor day, plant a landscape tree in the yard, and it will be pleasing to the eye when you see green every day; Plant a tree of love in your heart, and life will be warmer and more colorful. May the tree of life be evergreen and the tree of happiness be in full bloom.

stencil-plate

Second, the method of planting trees

Dig a hole before planting trees. First draw the outline of the pit according to the size of the tree. Generally, the pit is 20 cm larger than the diameter of the root, and it can be round or square. The depth of the tree pit depends on the depth of the root, generally 20-30 cm more than the depth of the original root. For example, the depth of the root is 20 cm, and you can dig 40-50 cm.

Dig the tree pit vertically down to a predetermined depth, and don't dig it into the shape of a pot bottom with a big top and a small bottom.

The planting method of bare-rooted trees is "three burying, two steps and one seedling raising".

It means that when planting trees, cover the soil for 3 times, step on it for 2 times, and raise the seedlings 1 time. The steps are as follows: put the seedlings in the center of the planting hole, backfill and cover the roots with the topsoil turned out during hole digging (first burial); Then lift the seedlings up by hand to stretch the roots (lift the seedlings); Then step on the covered soil with your feet (one step); Then fill the topsoil flush with the ground (buried twice); Then step on it tightly (step 2); Finally, cover the base of the seedling with a layer of loose soil (three buries). Plant seedlings. The basic operation procedure of seedling raising is "three burying, two steps and one seedling raising"