Using its massive root to propagate is relatively simple, and the flowers open early, and the number of flowers is also relatively large.
Generally, the division of bulbous roots is carried out in autumn. After digging out from the soil, the bulbous roots of the plant and the rhizome of the plant are broken into several small pieces, each piece of which has several flower buds and bulbous. Disinfect and air dry these separate bulbs, then pour them into clean, moist sand to produce new shoots. During this period, we should pay attention to the shade and ventilation of the environment, and often spray water to keep the fine sand moist. We should pay attention to disinfection every week to prevent the ball root from rotting. Half a month later, it can be planted when flower buds and roots are produced. Don't bury too thick when planting, just bury to the position of stem and root, or it will affect the long leaves; also don't bury too shallow, or it will affect the rooting. After planting, we should pay attention to the control of water quantity, not too dry or too wet, just keep the soil layer moist. Wait until emergence, then according to the growth situation slowly increase water
Seed planting can cultivate a large number of flowers in a short period of time. The color of the flowers is more colorful, but the number of flowers is less, the flowering is later, and the development period is longer. If there is no higher technical level, it is not easy to propagate directly by sowing. Generally, the method of cultivating bulbs first and then dividing plants is used.
Ranunculus japonicus is usually sown in autumn until the average temperature drops below 20 ℃. The suitable temperature for germination is 10-15 ℃, and it can germinate in about 20 days. If the seeds are sown in advance when the temperature is higher than 20 ℃, the seeds will not germinate until the temperature is appropriate, and the required germination time will be longer; if the temperature is lower than the appropriate temperature, the seeds will lack sufficient nutrients in the growth period, and the flowers will be smaller in the next year, in other words, the longer the vegetative growth period before the seeds overwinter, the cultivation The higher the quality of the flowers. Therefore, in order to cultivate high-quality Ranunculus japonicus, the method of prolonging its vegetative growth period is often adopted, and it is sown in advance in late August. At this time, due to the high temperature, it does not reach the appropriate temperature for germination, so it is necessary to artificially generate flower buds. Wrap the seeds with a thin cloth and soak them in cold water for 24 hours. Then put the soaked seeds into a fresh-keeping cabinet with a temperature of about 8-10 ℃. Wash the seeds with cold water every morning and evening to keep the seeds moist. The seeds can germinate in about ten days. After germination, immediately sow and strengthen management.
Tissue culture and propagation is to cultivate some tissues of Ranunculus japonicus and then propagate them. The advantage of this method is that it is relatively fast, but relatively speaking, the technology in operation is relatively complex, and the cost is also relatively high, and the demand for cultivation time and other elements is also relatively strict. In the actual operation process, it is not very simple, so this method is not generally used in the ordinary cultivation.
