Cranium is a short-day flower, 8 to 10 hours of sunshine a day, 2 to 3 months to flower. In the winter, it should be placed in a sunny place in the room and exposed to sunlight to promote flower bud differentiation. The flowerpots are often turned so that all parties can receive even sunlight, guaranteeing the development of flower buds and balanced flowering. The indoor place of C. japonica should pay attention to shading, otherwise it is not conducive to the formation of flower buds.
Second, the temperature
As the temperature decreases, the claws should be moved to indoor sunny place to avoid freezing damage. The room temperature is preferably maintained at about 15Â°C. The flowering temperature is preferably 10Â°C to 15Â°C. When the temperature is lower than 5Â°C or higher than 20Â°C, it will affect the growth and flowering of the plants. During the flowering period, the pots are moved to scattered light for conservation to extend the viewing period. Extremely avoid sudden temperature drop or large temperature difference between day and night; during flowering if the temperature suddenly drops below 10 Â°C, there will be buds, falling flowers.
Although the clam clam is hi wet, but because of its rootstock (such as cactus, triangular arrow) like hi dry, so when watering master "Ning dry not wet, do not do not dry, dry drenched" principle. Due to the low temperature in winter, the watering should not be too much. Generally, every 4 to 5 days, the soil can be kept moist. Do not pour water in the basin, otherwise it is easy to rot. The spraying of leaf surface water during the bud period is beneficial to many pregnant buds, so it is necessary to spray water regularly to keep the abnormal stems and buds moist. When the flower buds appear in the crab claws, do not be too dry and too wet, so as not to cause buds, falling flowers.
For the clams that are pregnant, they should supply sufficient nutrients for water and nutrients, which is conducive to the formation of flower buds, and is also conducive to beautiful flowers. Fertilization should be dominated by phosphate fertilizers, or top-dressing thin liquid fertilizers that are topped with mash, once every 7 to 10 days, to promote the formation of more buds. Also, 0.2% potassium dihydrogen phosphate solution can be sprayed on both sides of the leaves and flower buds, or in combination with watering, potassium dihydrogen phosphate (concentration same as above) can be used for pouring. This flowering and fertilizing should be carried out until the buds bloom. After entering the flowering stage, in order to ensure continuous flowering, the citron can adhere to liquid fertilizer or phosphorus and potassium fertilizer or apply a small amount of compound fertilizer every 10 to 15 days. If the required nutrients are insufficient, not only the buds are difficult to bloom, but also uninterrupted budding and flowering are caused.
Through the vigorous growth of grafted C. jasminoides, it is generally made of thin bamboo or lead wire to support the sagging stem segments, spread around into umbrellas, and cut uneven stem segments and pests and branches. Eliminate dense, too weak buds on the stem segments. In each section of the end of the leaves to retain a large bud, sparse other buds, which can save nutrition, focus on the supply of retained buds, so that flower buds grow, flowers the same size, bright colors. As the crab claws and orchids continue to open, we must timely cut off the flowers and the top of the leaves to save nutrients, stocking momentum.
Sixth, control pests
The most common insect pest of C. japonica is the scale insect, which is most easily obtained in poorly ventilated environment in winter. Scale insects have a greater harm to the crabgrass, but it causes rust spots on the rootstock and scion, which affects the appearance and causes the death of the plants. A scale insect was found and should be immediately removed with an appliance. The insects could be brushed with a brush or scraped with a bamboo scraper, and then sprayed with 500 to 800 times the omethoate for continuous control 2-3 times.
The occurrence of rot disease in C. jasminoides is caused by poor drainage of pots and earths, persistent over-humidification, which causes rot of rootstocks, and can be sprayed with 50% carbendazim WP 500 times on a regular basis to sterilize, such as local rot, and the use of sterilized products. Knife to cut rotten parts, the wound can not be watered before healing.
In addition, some cultivars often grow well during cultivation, but they do not bloom or bloom very little. It should be checked if the place is appropriate because it is a short-day plant. The light is only less than 10 to 12 hours per day. The plants can form flower buds, such as adequate light during the day, and strong light at night, in this condition of long illumination. Plants often do not form buds easily.