1. After intertillage weeding and transplanting, intertillage weeding should be carried out 4-5 times a year to promote root activity and deep roots and prevent weeds from affecting the growth of young trees. Combined with intertillage weeding and soil cultivation every year, it should be 1 ~ 2 times a year within 3 ~ 4 years after transplanting, and every 2 ~ 3 years for adult trees to prevent plants from lodging. Cornus officinalis root system distribution is shallow, so soil cultivation should be strengthened after fertilization in winter, which is an effective measure to strengthen seedlings, retain water and moisture and prevent lodging.

2. After fertilization and irrigation, if the base fertilizer is sufficient before transplanting, topdressing may not be applied in that year. From the second year after transplantation, depending on the age of the tree, 5 ~ 20 kg of soil miscellaneous fertilizer and manure are applied to each plant in spring and autumn every year, and an annular fertilization ditch is opened along the crown, and water is sprayed appropriately after fertilization. Spraying 0.2% boric acid, 0.3% potassium dihydrogen phosphate or 0.5% urea on the leaves alternately every month during the full flowering period and May-August can promote the vegetative growth and fruit development of Cornus officinalis, prevent flowering and fruit dropping, and improve the fruit setting rate. Combined with fertilization, irrigation should be applied 1 time before flowering, before flower bud differentiation and after fruit picking.

3. The purpose of pruning is to cultivate a reasonable tree skeleton, make the branches evenly distributed in space, and form a good crown with good ventilation and light transmission and large fruiting area, which is conducive to early fruiting of young trees, high and stable yield of adult trees, rejuvenation of old trees, and convenient management and harvesting.

When the young tree grows to about 1 m, the top is cut off to promote the growth of secondary branches, and then 3-4 ideal robust branches are selected, and the weak branches at the base are cut off to dwarf the tree, which is beneficial to promoting the transformation from vegetative branches to fruiting branches and increasing the fruiting area.

Pruning of adult trees is mainly carried out after defoliation in winter. Cutting off the withered, diseased, weak, overlapping and sprouting branches at the base is beneficial to the regeneration and rejuvenation of ancient trees. It can be carried out from early May to early June, and measures such as ring cutting, ring stripping, summer cutting and angle opening are adopted. The method of girdling is to girdle the trunk of a plant with a knife and reach the phloem; The method of girdling is to peel a circle of bark at the depth of cortex about 50 cm from the ground, and the trunk width is110; The branch opening angle is the angle at which the main branch is opened by pressing, pulling, supporting and grading. Summer pruning means that when the long branches grow to 0.5 meters in summer, the tips are picked in time and some long branches are bent and twisted. Measures such as girdling, girdling, summer cutting and opening angle can accumulate photosynthetic products (carbohydrates), improve plant nutrient distribution, inhibit vegetative growth, relieve tree vigor, be beneficial to flower bud differentiation and early fruiting, and have obvious yield-increasing effect.