Method for planting fraxinus velutina in saline-alkali soil

Abstract

The invention discloses a method for planting fraxinus velutina in saline-alkali soil. The method includes the first step of digging a tree hole according to the size of a root ball of fraxinus velutina, wherein the depth of the tree hole is higher than the height of the root ball by 50-60 cm, and the diameter of the tree hole is larger than that of the root ball by 10-20 cm; the second step of laying a salt barrier layer in the tree hole, wherein the thickness of the salt barrier layer is 40-50 cm; the third step of placing a sapling at the center in the tree hole, filling the tree hole, performing compaction, and using much water for thorough watering. The salt barrier layer can effectively reduce the change amplitude of soil moisture, the content of the soil moisture fluctuates in a relatively small range, and plants can be protected from excessive hydropenia during the dry season and can be protected from death caused by excessive flood during the rainstorm season. The salt barrierlayer can block water rising channels such as a soil capillary, inhibit the increase of soil salinity, effectively alleviate the strong change of salt and reduce the variation range of EC; therefore,the salt barrier layer is beneficial to the survival of the fraxinus velutina in the saline-alkali soil and smooth growth, and also has a long-lasting saline-alkali soil improvement effect.

Description

technical field [0001] The invention relates to the technical field of tree planting in saline-alkali land, in particular to a saline-alkali land planting method of white wax fluff. Background technique [0002] There are a large number of saline-alkali lands in our country. The yield of crops planted on these lands is very low, or even extinct. If no crops are planted on the saline-alkali land and left unattended, the saline-alkali land will slowly erode to the good land, and the area of ​​the saline-alkali land will become larger and larger, so Harnessing and improving saline-alkali land is a national plan and an urgent matter. [0003] In order to improve the situation of saline-alkali land, prevent the area of ​​saline-alkali land from expanding, and also to beautify the landform of saline-alkali land, it is necessary to plant trees on saline-alkali land. However, the survival rate of trees on saline-alkali land is very low by traditional tree planting methods. Content...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the condition of saline-alkali land, prevent the area of ​​saline-alkali land from expanding, and to beautify the landform of saline-alkali land, it is necessary to plant trees on saline-alkali land. However, the survival rate of trees on saline-alkali land is very low by traditional tree planting methods.