To raise potted roses well, we must master six links: pot, soil, water, fertilizer, light and harm. 1. Pot refers to selecting and changing pots. It is best to burn the pot with soil, and the diameter of the pot should be commensurate with the size of the plant. When using the washbasin, the old washbasin should be cleaned, and the new washbasin should be soaked before use. When the plant grows until the root is full of the original pot, the original pot should be replaced with a large pot during dormancy to meet the needs of the continuous development of the root. When the seedlings grow up, they should be changed from small pots to large pots, preferably once a year. 2. soil. The culture soil required for potted plants is 50% garden soil, mixed with 30% decomposed garbage soil and 10%-20% coarse bran ash. Every 500g of soil is added with decomposed compost or cake fertilizer10-15kg. When changing pots, you should also change the new culture soil. 3. Water means watering. Water is the lifeline of plant growth, too much or too little will affect the growth. In particular, the watering of potted roses should be properly adjusted according to the needs, and the watering amount should be controlled according to the change of seasons and the water consumption of growth. In spring, the temperature is low, the leaves just grow, and the water demand is low, so it can be watered once every 3-5 days. It's hot in summer, so water it 1-2 times a day (except rainy days) for thorough watering, especially in bud pregnancy and flowering period. Water supply is essential, so water should be reduced, and water should not accumulate in rainy season. 4. Fat. Ross likes fat. This kind of flower grows fast, blooms more and consumes more nutrients, so fertilization is an important part of raising Chinese roses. Potted plants must be fertilized with sufficient fertilizer. In general, apply thin fertilizer every 7- 10 days to keep the leaves dark green and shiny. Before the flower buds appear, thick liquid fertilizer such as sauce residue water can be applied to meet the flowering needs. Usually, we should master the principle of small amount and multiple fertilization. Whether to continue topdressing in summer depends on the growth of the plant, and it can continue topdressing if it grows vigorously; The growth is weak, the flowers are thin and thin, and they are in a semi-dormant state, so fertilization should be stopped. 5. Illumination, although Chinese rose flowers like sunshine, they should try to block direct glare in hot summer, and it is best to put them in the shade around noon, so that they can see sunshine day and night. After changing the basin, put it in a cool place to avoid direct sunlight, and move it to a ventilated and sunny place after one week. 6. Harm refers to pests and diseases. In the spring and autumn rainy season, leaves are prone to black spot and powdery mildew. After discovery, 70% wettable topaz powder can be sprayed with 1000 times solution, or both sides of the leaves and petioles of flowers can be wiped with cotton dipped in alcohol. Insect pests are mainly aphids and red spiders, and 40% dimethoate EC can be sprayed with water 1500 times.
Chinese rose flowers are large and need more fertilizer, so it is advisable to apply more chemical fertilizer and sufficient organic fertilizer before germination. Potted roses are changed once in early spring, and the formula of pot soil is: loam 5 parts, humus 2 parts, decomposed manure 2 parts, sandy soil 1 part, and then a small amount of vegetable cakes are added and mixed well. After that, topdressing should be done every 10 day to15 day. Top dressing can add liquid fertilizer made of cake fertilizer and phosphate fertilizer to water. Especially after flowering in May, fertilization should be applied in time to promote flowering in summer and autumn.
During the growth period of Chinese rose, it is advisable to fully receive sunlight and keep it for 8 hours every day. If it is used for indoor viewing, it should be moved in before 1 1 am and moved out before 4: 00 pm to receive the soft light around noon, which is conducive to prolonging the flowering time.
Rose is in a semi-dormant state above 33℃, and the average temperature is 20℃ to 25℃, which is the most favorable for growth. Therefore, it is necessary to shade properly and spray more water in summer. In the growing period, it is best to spray water once in the morning and once in the afternoon to create a humid environment and promote the growth of flowers and leaves.
After the rose blooms, the leaves should be cut below the third compound leaf under the flower to promote the development of strong new branches and the bud to bloom as soon as possible. The key points of pruning technology are: firstly, weaken short branches and cut high branches; Strong branches are cut and cut short to promote the weak and restrain the strong, and promote their neat flowering. The pruning length of long branches should not exceed 1/2 to avoid slow axillary bud germination. In addition, it is not advisable to leave too many flowers per crop, and it is advisable to have 3 to 5 pots of roses. Too much nutrition is too scattered, and a small flower affects the next flower. Therefore, after germination, we should choose strong buds, cut off the upper part of 2.5 cm, and remove the weak buds at the lower part. After budding, the terminal bud should be selected to remove the bud between the leaf and the leaf axil.
Jiang Zhong Gu Fan /mg reply time 2008-05-0 1 20: 18.
Report to the authorities
Other answers have strong adaptability, but they like warmth, avoid heat, love sunshine and require a well-ventilated environment. The requirements for soil are not strict, but the soil containing a lot of organic matter, loose and fertile, well drained and slightly acidic (PH 6.2-6.8) is most suitable for growth; It does not grow well in hardened soil or calcareous soil. Water is often sprayed on plants.