Walnuts,Walnut Kernel,Walnut In Bulk,Yunnan Walnut Weishan Yuanxing Walnuts Co.,Ltd. , https://www.walnutsxxy.com
Poinsettia purchase and maintenance
First, purchase flowers 1. Number of flowers: Each single branch is called a flower head, generally 6 flowers below the head is the lower flower, 6 to 8 flower heads are medium flowers, and 8 or more flower heads are the excellent flowers. 2. Head flush: The ideal poinsettia should be the same size of the flower head, evenly distributed on a spherical surface, surrounded by dense tufts, the crown to height ratio is greater than 1.0, preferably greater than 1.3. This finished flower looks generous and stretches. 3. Look at the legs and feet: Hold the poinsettia and look at its leaves from the side. If there are many leaves that are yellow, it is a low-quality potted plant. Whether or not the branches are thick is also an important criterion for judging the quality of poinsettia. The branches are so leggy that the festivals grow old, and the branches are completely revealed from the side, and they are also defective. 4. Look at flowers: Poinsettias are beautiful, but what makes you pleasing is not its flowers, but its cymbals. But looking at the real flowers at the top helps determine the quality of poinsettia. If most of the top small yellow flowers are already open, there are more small flowers on the side buds. This is "opening." Most of these poinsettia have short flowering dates, and it is very difficult to extend the time for home purchase. 5. Hands-on: Tap the corolla gently with your hand. If it is soft, it will not grow. The ideal poinsettia should be stronger and more vigorous and give people a feeling of vigorousness. Second, conservation 1. The temperature of poinsettia is native to Mexico, and the warm and pleasant environmental conditions are 15°C to 25°C. However, when the selenium is completely red, the growth temperature needs to be lowered to 13°C to 18°C ​​to facilitate the deepening of the sepal color. Under normal circumstances, temperature conditions of 12 °C to 18 °C are conducive to extending the period of euphorbia pulcherrima and keeping the sepal color. In the low temperature environment, the normal metabolism of poinsettia basically stops. Poinsettia at this time has poor adaptability, and it should be kept in a relatively balanced and stable environment as much as possible. The temperature must not be too high or low. In particular, a pot of poinsettia that cannot be kept in a low temperature environment for a long time must be suddenly transferred to a high temperature environment. Then, such a poinsettia must not be subjected to strong sunlight suddenly. When the temperature is too low, the red cymbals easily turn into unsightly blue or white. However, the open poinsettia can be maintained very well under the environmental conditions of 8°C to 12°C. In an over-temperature environment, the metabolism of the euphorbia pulcherrima strengthens, and if there is no suitable light conditions, the leaves, sepals, and flower buds may also be littered. 2. Light In the natural light conditions, the color of the poinsettia bracts is very bright and shiny. However, in the flower market or hotels, hotels, families and other places, poinsettia is often rarely seen or seen very short time. Poinsettia requires light energy to maintain its normal growth both before and after flowering. Most varieties currently on the market require a minimum light intensity of between 800 and 1000 lux, and the light time should not be less than 8 hours. In general, the light intensity in families is only 500 lux to 800 lux, which can not meet the minimum requirement for maintaining the growth of poinsettia. This is why many consumers can only watch for 2 weeks or even less than 2 weeks after buying back. You may wish to place the poinsettia in bright places such as the window sill during the day to allow it to receive more light, but not direct sunlight. The red light from the incandescent lamp enhances the color of the poinsettia bract. The white fluorescent light will not only make the euphorbia pallid matt, but the blue light it emits will also cause the red sequins to fade. Therefore, if you want to make poinsettia show a better viewing effect, it is best to use incandescent lamps with enough wattage. 3. Watering and watering is an important part of the management of poinsettia after flowering. After the complete conversion of the poinsettia bracts, the overall metabolism has been significantly reduced, and the requirements for light, temperature, fertilizer, and moisture have been significantly reduced. The correct watering should be such that when the substrate is dry, the degree of dryness is before the blade is pulled, a small amount of water is used, and the amount of watering is appropriate to just wet the substrate, and not too much. If you do not master it well, you may wish to stick to the principle of rather less, because even if the water control is very severe, it is often the lower leaves yellow off, and the bracts are still upright. The root of a poinsettia is in a humid environment for a long time. The roots are easily rotted and susceptible to gray mold. It is also important to note that in the winter, the temperature of the water used must be close to the ambient temperature, and the cold water will make the poinsettia “cold,†the roots are damaged, and the leaves fall.