Oil tea seedlings have sowing, cuttings, leaf insertion three methods.
1. Sowing seedlings. There are two methods of sowing and sowing, but the production of more than sowing. Sowing season winter and spring can be, winter sowing in November, spring sowing in mid to late February to early August. Seeds should be water-selected and sterilized before sowing. The direction of the seeding ditch is parallel to the direction of the seedbed, the ditch width is 10-12 centimeters, the ditch distance is 18-21 centimeters, and the depth is 4-5 centimeters. The amount of seed sown per mu is 200-250 pounds, the seed should be evenly sown, and the soil should be covered with 3~4 cm after sowing.
2. Cuttings seedling. Cuttings nursery can maintain the excellent plant excellent traits, is the main way to establish the mother forest, seed garden. Cuttings can be divided into spring and summer insertion, spring insertion is appropriate in February to March, summer insertion is appropriate in May to June. Spring insertion from the excellent plant selected 1 year-old robust branches, summer insertion cut the year-old semi-articulated shoots. Spike cut into 5 centimeters long, the base of the old branches, cut into the shape of a horse ear, the top to stay 1 leaf blade, strip thickness 0.2 ~ 0.25 cm. Soil to yellow heart soil is better, with 100 ppm a a naphthalene acetic acid before insertion, or 50ppm2, 4-D growth stimulating hormone treatment for 6~12 hours, to promote the healing of rooting has a good effect. Cuttings immediately after treatment, into the soil depth of two-thirds of the plug, plant spacing 5x20 cm, watering after insertion.
3. leaf nursery. The specific method of leaf seedling is: choose to grow strong 5 to 15 years old mother tree, large trees can be picked light enough to the outer edge of the leaves (small trees can be), it is best to pick one-third of the crown at the time of the piece, because it has a more stable and excellent characteristics. Spring insertion should be inserted over the winter old leaves, summer and fall to choose the year's basal leaves. When inserting the leaves, use your hands to cut away from each time piece, and with axillary buds, with the picking and insertion. Insertion of leaves with axillary buds buried in the soil one-third, oblique insertion. Spring and fall leaf insertion facing south, summer leaf insertion facing north, insertion distance is 3~6 cm. After inserting the hand press, gently watering, so that the soil and leaves closely together. After inserting a good shade in a timely manner, strengthen the water and fertilizer management.
Two, cultivation management
1. Cultivation
(1) direct broadcast: direct broadcast can be divided into winter and spring sowing two periods. Winter sowing November to December, spring sowing February to March. Winter sowing cover soil 4~5 cm, spring sowing cover soil about 3 cm, sandy soil slightly deep, clay soil dark shallow.
(2) planting: winter and spring can be planted. Planting should be selected in early spring after rainy cloudy days, hairy rainy days up seedlings planting is good.
(3) cuttings: afforestation requires deep, fertile, loose, moist soil, in the cloudy days before and after the Qingming Festival or after the rain, the main part of the main branch of the 2-3 years old as a spike, 50-60 cm long, the base is cut into the shape of a horse's ear into the soil 30 cm cuttings of this section of the cuttings on the lateral branches should be completely cut off, but the base of the lateral branches should be cut to stay 0.5 cm long, in order to take root. The cuttings should be picked up as they are inserted.
2. Management. Oil tea afforestation should be carried out after the summer plowing shallow hoeing, do a good job of soil and water conservation. Summer rainstorms, easy to cause topsoil loss, the general requirements of broken soil should not be too fine. Should be dug along the high level between the sub-mountain or build fish scale pits, terraces, in order to shorten the runoff line, reduce soil erosion. Fertilization is mainly organic fertilizer, supplemented by chemical fertilizers. The use of ditch application, hole application can be. See here, you should have learned the oil tea seedling and management, thank you for browsing, welcome to leave a message to discuss.