Tillage deeper than 20 cm soil, so that deep soil in the sun fully exposed to improve the physical properties of the soil and increase the permeability of the soil. In combination with winter farming, organic fertilizers can also be applied, or green manures can be planted deep in the soil to increase fertility.
Pruning is generally performed once a year for winter pruning, and pruning should be performed according to the purpose of cultivation. For the purpose of harvesting bark from the eucommia bark, appropriate lateral branches should be trimmed, and the dense lateral branches and 1-year-old sprouts on the ground should be cut to promote the robust growth of the trunk and main branches. If the harvested Eucommia ulmoides leaves are dominant, then it is not necessary to cut off the lateral branches and sprouting, and the seedlings are maintained, and they are all grown into stems, forming a natural round crown-shaped canopy, with many main stems, many branches and many leaves, and can be increased. Eucommia leaf production. When pruning, attention should be paid to the removal of diseased shoots, dead branches, over dense shoots, and unevenly growing shoots.
Qingyuan 1. Combine with Qingyuan, clean the litter, concentrate treatment, tightly cover with soil, make it fermented and cooked, which can reduce the disease, but also can compost. 2. Combine with the clear garden to remove insect pests and eliminate overwintering pests. According to the overwintering habit of thorn moths, its overwintering sites were destroyed, and overwintering insects were manually destroyed. The method is to crush the insects on the trunk and combine the cultivation to excavate the insects in the soil around the eucommia tree.
Cold-proofing For the peeled eucommia tree, the trunk can be wrapped in grass, which can not only maintain the temperature and humidity, but also prevent the sun from shining directly on the tree trunk after the leaves fall. Seedlings from 1 to 3 years old are mainly cultivated to protect against cold. The specific method is: after the leaves of the Eucommia ulmoides are fallen, the plants are pressed down, and the shoots are first pressed with moist soil, and then the whole plant is buried with earth. The earth pile is about 30 centimeters high. Go to earth and straighten the plants. If the planting seedlings are dense, it is not easy to cultivate soil, wind barriers can be placed at the tuyere or soil only in the roots of the plants, the whole plant is wrapped in grass.
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