Hello everyone, I think I have summarized the steps for raising chestnut tree seedlings:

1. Prepare nutrient soil: 40 to 50 parts of yellow heart soil, 15 to 20 parts of carbonized rice husk, Mix 8 to 10 parts by weight of humus soil and 5 to 8 parts by weight of tung seeds to prepare nutrient soil, then spray the nutrient soil with 1000 to 1500 times of 80% wettable powder of Duolingbacterium for disinfection, and sterilize it after 3 days. Put the nutrient soil into the nursery bag;

2. Select the scion: Select the annual fruit-bearing mother branch with strong growth and full bud eyes as the scion. The scion has 2 to 3 full buds, and then use a grafting knife to cut the lower end of the scion. Cut it into a wedge-shaped bevel, the wedge-shaped bevel is 2.5 to 3 cm long;

3. Select sprouts and seedlings: Select sprouts that grow robustly. When the first true leaf is about to unfold and the second true leaf appears, , cut off the young shoots of the upper part of the cotyledons, and make a vertical incision between the two cotyledons, with a depth corresponding to the shaved surface of the scion;

4. Grafting: insert the shaved surface of the scion toward the incision of the seedling stock. , use a film to tie and fix the stock joints from bottom to top to obtain grafted seedlings, and then plant the grafted seedlings in seedling bags;

5. Seedling cultivation: Place the grafted seedlings in a shade of 70~ In an 80% shade shed, control the temperature inside the shed to 25 to 28°C and the humidity to 70 to 80%; after the grafted seedlings survive, remove the tillers on the seedling anvils in time, open both ends of the shade shed at night and cover it back during the day; After 45 days, remove the film used to tie the grafted seedlings, and spray 0.1% urea or 0.1% dipotassium hydrogen phosphate solution once; after 60 days, place the grafted seedlings in natural light for cultivation.