When planting trees, how much should the diameter of the pit be wider than the root of the tree?

The diameter of the pit should be one third larger than the width of the root of the tree.

When planting trees, the pit should be dug with a diameter one-third larger than the width of the root of the tree, and weeds, stones and other sundries in the pit should be removed to facilitate the rooting and growth of the tree.

The same tree species, different planting landforms and trees with different uses need different spacing. For example, in Xue Ying, the plant spacing of hearts is 3×4m, and 55 plants are planted in 667 square meters, and the crown height is controlled at about 3m, which forms a three-dimensional effect and has a good yield.

The row spacing of trees in mountainous area, sloping land and dry and thin land is 4×4m, and 4 1 plant is planted in 667m2; Early close planting can be carried out in high water and fertilizer fields in the plain, with 66 plants planted at the plant spacing of 2×5m and 667 m2, and 82 plants planted at the plant spacing of 2×4m and 667 m2.

Eucalyptus plant spacing aims at cultivating pulp wood, the suitable plant spacing of eucalyptus is 3×2m or 4×2m, and the afforestation density is 83-11plant per mu; In order to cultivate large-diameter timber, the suitable spacing of eucalyptus trees is 5×2m or 4×3m, and the density is about 56-67 trees per mu.

Rescue method for trees planted too deep

Planting trees too deep means that in the process of transplanting trees, too much soil covers the position where the original soil reaches. Generally, the covering soil is higher than the original soil level 10cm, which is called super tree planting.

Too deep planting of trees, too thick soil ball coverage, too heavy soil, water accumulation in roots and other factors will inhibit root respiration, and the roots can not absorb water and nutrients from the soil, leading to dehydration and wilting of plants, and serious root rot and death will occur.

The planting depth is related to groundwater level, soil moisture, tree species, tree age and climate. When restoring trees planted too deeply, the general principle to be mastered is to keep the root soil breathable, permeable and heat-permeable, so as to facilitate the healing of root wounds and the growth of new roots and ensure the normal breathing and growth of roots. Specific measures should be divided into two categories according to the situation of trees.