In the past ten years, the spring drought in Lincheng County has been severe, the temperature has risen rapidly, and the ground temperature has risen slowly. Especially after the newly planted locust seedlings are watered, the ground temperature is low for a long time, resulting in the germination of the aboveground part, but the root system recovers slowly and the survival rate of the hedgehog is slow. reduce. In autumn, the temperature gradually decreased, the transpiration was lower, the water content in the soil was stable, and the locust seedlings accumulated rich nutrients. There is no natural dormancy period in the roots of trees. In the case of high soil temperature, the roots of Robinia pseudoacacia planted in autumn can still resume growth. As long as the winter frozen soil layer is not thick, the root layer of the lower layer still grows to some extent, and it grows early in the spring and grows vigorously. The survival rate can reach more than 95%.
The planting time can be planted from the leaves until the soil is frozen, but it is better to plant a leaf.
The tree specifications are generally cut and afforested, and 30 cm of seedlings can be reserved.
The planting technique is planted to a depth of 3 to 5 cm deeper than the spring, and the soil should be stepped on. Immediately after the trees are planted, water is poured into the water. After watering, the soil can be sealed for winter and buried. In the spring of the second year, the water is poured once again under conditions. After underwater seepage, cover 5 to 10 cm of soil. Unconditionally, the mound will be slightly opened to reveal 10 cm of dried seedlings.
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