First, the breeding and breeding of the cerebral palsy. The survival rate of the cerebral palsy using the field cuttings is more than 80%. It is best to harvest in November. Dwarf forest stays can be harvested for years, continuous use, and no pollution.
1. The cutting method can be used in the forest margin or inter-forest open space with better microclimate. The cutting seedbed can be made of bricks into a bed frame with an east height of 60 cm, a west height of 40 cm, and a width of 315 m (length depending on the terrain). In the center of the bed, a dark communication of 40 cm deep and 40 cm wide is transmitted to the outside of the seedbed, and the gravel is filled with gravel in the bottom of the bed. Interpolated into red soil alluvial soil, 20 to 25 cm thick. Disinfect with 0.2% potassium permanganate one week before cutting and cover with a film. The 2-meter-high fixed shade shed is erected on the insertion bed, and the light transmittance is about 30% to 40%. For easy transplanting, nutrient cutting can also be used.
The southern part of the cutting time is from March to early April. Too early, due to low temperature, the incision at the base of the cuttings becomes black, which is unfavorable for healing and rooting. If the temperature is too late, the cuttings will not heal first, which will consume nutrients and is not conducive to healing rooting. The cuttings are best used for the lateral branches of the 2 to 3 year old borneol. The base of the cuttings is cut into smooth flat mouths by the nodes, and the top is cut from the section 0.13 to 0.15 cm with oblique edges, leaving one bud and one leaf per ear. The cuttings were immersed in β-indolic acid or β-naphthylacetic acid before cutting.
The cuttings are 3 to 4 cm apart, the row spacing is 10 to 12 cm, and the cuttings are inserted into the soil. After being inserted, it is pressed tightly, the water spray is wet, and the plastic film is covered. It is usually sprayed 2 to 4 times a day before healing, and healed to 1 to 3 times a day during the rooting period. Rainy days can be carried out every other day. The seedbed should pay attention to ventilation, the air humidity should be controlled above 80%, and the temperature should be controlled below 29 °C.
When the cuttings grow 3 to 4 new leaves, the plastic film can be removed in time to carry out normal management of the seedlings. In general, we should pay attention to weeding and pest control, and spray water in time when it is dry. In early March of the next year, when the seedlings grow to a height of 40 to 60 cm, they can be dug out for planting.
2. The tissue culture method is used to take the young shoots of the borneol after cutting, and after washing and washing, it is washed several times with tap water. Under sterile conditions, soak for 30 minutes with 70% ethanol, then sterilize with 0.1% mercury solution for 7 to 10 minutes, rinse several times with sterile water, and cut about 0.5 cm with scalpel for cultivation. material.
The above culture material was placed in an MS medium supplemented with a mass fraction of 0.8% agar and a mass fraction of 3% sucrose. At a temperature of 25 ° C to 2 ° C, the stem segment was thickened for about one week, and a certain amount of the incision was produced. Injury tissue, axillary buds bulged and began to sprout. After about 1 month, the adventitious buds can be extended to 2 to 3 cm. Subculture is then carried out into the corresponding medium for induction of shoot buds and roots. Before transplanting, the root medium is washed, planted in a plastic seedling tray filled with rock, and sprayed with water. After 1 week, the nutrient solution can be sprayed to gradually enhance the light. After 3 weeks, the seedlings were transplanted into the soil to grow into a vigorous plant of the cerebral palsy.
Second, the cultivation and management of the cerebral palsy. The cerebral palsy should be selected to be built in the gentle red soil low hills or hills, and there should be a better water source for watering. After the forest land is selected, all the shrub weeds should be removed, and the planting holes with a depth of not less than 30 cm should be excavated according to the row spacing of 1 m × 1 m. Each point can be properly applied to farmyard manure and a small amount of calcium magnesium phosphate fertilizer as a base fertilizer. The seedlings are 1 year old dragon brain and strong seedlings, planted in early March. After planting, it should be bred in due course, and the breeding shrub weeds should be removed at any time. 0.2 kg of compound fertilizer plus urea can be applied to each plant during the growing season. Futian timely sprays with water and covers the moisturizing of mansions and hay. In the year of colonization (or leap year), the main shoot buds can be removed, causing the base to sprout and produce branches, dwarfing the tree shape. The diseases and insect pests of the borneol are mainly snails, scorpion beetles and scorpion nests. It can be sprayed with 2000 times liquid of 90% trichlorfon or 80% dichlorvos or 40% dimethoate emulsion.
From the second year of planting, cutting is carried out from July to December every year to extract volatile oil. The post-forested woodland should promptly remove the miscellaneous trees and carry out operations such as weeding, loosening and fertilization to continue the germination and growth of the borneol eucalyptus.
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