First, the ramification method
Choosing to grow robust old yellow flowers, dig out some or all of the rhizomes from the mother plant clusters, shake off the dirt, cut the old roots of the roots of the rhizomes, root the roots, and separate the plants one by one, putting the rhizomes around The burrowing went to expose the main lateral buds, and each rhizome retained 2-3 new roots planted in Daejeon. It is characterized by simple operation and high survival rate. It can be carried out throughout the year, but it is better to use the spring and autumn seasons. It is a kind of asexual propagation method commonly used in production.
Second, budding propagation method
The root of the yellow flower is a meaty stem. Each small meaty stem has a number of small projections called clusters. Each secreted bud contains six secreted buds, alternately arranged on both sides of the meaty stem. The buds usually do not sprout. Only when the main lateral buds are damaged does the germination grow a new little life. The budding propagation According to this characteristic of yellow flowers, the rhizomes are intentionally cut with a knife in accordance with the distribution of the budding clusters, and a new plant is grown by culturing one month of budding buds. This method is technically strong and has a high propagation coefficient. Therefore, it is necessary to select buds with strong vigor, rapid development, high survival rate, and short-lived rhizomes. In general, a single plant can be divided into 4 to 10 strains. The old yellow flower per acre is propagated by budding, and 4-6.70 hectares of newly planted yellow flowers can be planted.
1, bud technology
The budding and breeding can be carried out throughout the year. It is best to shake the soil of the dug up yellow flower clusters in the spring and autumn seasons, remove the dead leaves and clothes, reveal the main lateral buds, and follow the positions where the buds are clustered. Kind of block. (1) Crosscut method. Use a knife to cut the rhizome horizontally from the year mark below the main bud, then from top to bottom, cut a knife from the annual mark or every 1-2 cm in order, divide the rhizome into several sections, each Guarantee 1-3 bud clusters. (2) Diagonal cut method. Use a knife to cut the main bud obliquely at a 45 angle from the joint between the main bud and the lateral bud, and then cut the lateral bud obliquely at an angle of 45 degrees in the opposite direction, and so on.
Regardless of which of the above two methods is adopted, each piece of meat has 3 to 7 centimeters of fleshy roots, providing nutrition for germination and germination.
2, cultivation methods
(1) Plant the seed block directly into the field. The soil preparation site was 5,000 kg of Fertilizer applied to homes, 40 kg of Phosphate Fertilizer, 2 m wide, 2 rows per row, 1.20 m wide spacing, 80 cm spacing, and 50 cm spacing. Put 3-4 blocks of pods per hole, shoot upwards, roots down, cover soil 3 cm, plant feet with water after planting, and cover with water after infiltration. After January, pay attention to the release of seedlings, to strengthen seedling management, to achieve early-onset seedlings, strong seedlings.
(2) The first seedlings were transplanted again, and the cut seeds were planted on seedbeds with a spacing of 15 cm and a spacing of 10 cm. The seedlings were 45,000 seedlings per acre, and the seedlings were transplanted in the field for 2 months. This method sprouts fast, grows strong, and has a high survival rate.
3, seed breeding method
1, selection. Choosing a robust, disease-free, yellow plant that has been planted for 5-8 years, leaving 5-6 stout buds on each flower bud at the beginning of the flowering period does not pick, leaving the results as seeds. The remaining buds continue to be picked and sold as commodities. Seedlings used for the first flowering period sprayed once every 7-10 days amino acid 2000 times, spray 2-3 times until the capsule matures, when the top slightly split, take off threshing. Seeds should be placed in a ventilated and dry place and kept properly.
2, nursery. Choose sites such as Yangshuo or greenhouses, use fertile garden soil as a seedbed, and conduct soil disinfection. Seeds were soaked in warm water at 25°C for 48 hours. When sowing (1.50-7 m) per plant, 200 kg of organic fertilizer was sifted and sifted. After the squatting, the sorghum was poured and water was poured. After the water was percolated, the spacing was 15 cm and the spacing was 3 cm. 2 cm. The use of Yangshuo seedlings, can be inserted in the above small arch cover film, the temperature within the shed to maintain 25 °C during the day, not less than 12-15 °C at night, 1 week can emerge, after the emergence of a gradual reduction in greenhouse temperature, adapt to the outside world, prevent seedlings long . In the seedling stage, field management must be strengthened to keep the soil moist. Attention should be paid to disease prevention and pest control, and more cultivating and spraying some foliar fertilizers should be adopted to promote the growth and development of seedlings, and to cultivate large seedlings and strong seedlings for the next year.
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