Key points of Cuttage Seedling techniques of Eucommia ulmoides
Eucommia ulmoides generally uses seeds to raise seedlings, but cutting propagation has the advantages of good quality and high economic benefits.
1. Cutting time. Generally, it is appropriate to cut in May to June, in the morning and evening or in cloudy and rainy days, the row spacing is 810 cm, and the branches are 3 cm into the soil. After insertion, a shed should be set up for shading, moisturizing and preventing cuttings from wilting.
2. Prepare the inserts. The sturdy twigs of young trees without Lignification should be selected as cuttings. Pick off the terminal bud 10 days before harvest, insert with 3 leaves, cut off half of the leaves with scissors to reduce leaf water evaporation; soak the cuttings in clean water for one day, absorb enough water to resist drought and pass the summer. If you use rooting powder, the effect is better.
3. Nursery site selection. Choose the slightly acidic sandy soil with loose and fertile soil, convenient drainage and leeward to the sun as the nursery land. Fine soil preparation, 300 kilograms of rotten farm manure per mu as base fertilizer, and then mixed with soil fertilizer to make a seedbed 2 meters wide and 30 centimeters high, spraying water regularly to keep the soil water content at about 15%.
4. Strengthen the management. Cuttings can gradually take root after a month in the soil. Seedlings should be checked regularly, weeds should be removed, and feces and urine of familiar people should be applied thinly to promote seedling growth.
5. Disease and pest control. Give priority to prevention, comprehensive and timely prevention and control.
In general, the cuttings can grow to 80cm in height in the same year, and the seedlings are thick and strong, and they can be planted in early spring the following year.
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The method of peeling and coating regeneration of Eucommia ulmoides
1. Peeling cycle. Mastering the peeling cycle is of practical significance to improve the bark yield per unit time and economic benefits of Eucommia ulmoides. In terms of short-term benefits, the shorter the peeling cycle, the greater the bark yield, but the regenerated bark will become thinner and thinner, at the same time, the tree potential will be obviously weakened, and the trees will produce bark longevity.
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Field management of Eucommia ulmoides
1. Weeding in intertillage: after Eucommia ulmoides is planted, the root system is not stable, the ploughing should be shallow rather than deep, and weeding should be clean. If intercropping with crops, it can be combined with intertillage and weeding. Eucommia ulmoides young forest is closed, clearing the forest and ploughing once every summer to promote the growth of young trees.
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