How to cultivate hanging petunia? Cultivation and maintenance skills of hanging Petunia

Hanging petunia is characterized by a floral shape like a trumpet, with a light fragrance when flowering, a large number of flowers, beautiful plant shape, very good ornamental value, suitable for hanging orchids, its planting method is simple, the following is about the cultivation and maintenance techniques of hanging petunia, parents who like this flower can refer to it.

Growing environment

Petunia like warm, sunny, cool environment, slightly resistant to cold and high temperature, afraid of drought and waterlogging, do not have high requirements for water, fertilizer and soil, and are suitable to grow in fertile soil with good drainage and rich humus.

Sunshine and temperature

Hanging petunia can only blossom under long sunshine, and potted plants must be placed in an environment with sufficient light, and the branches will bloom when they grow to about 10 centimeters, otherwise short-day notes will inhibit flower buds and blossom less; flowering will be delayed on continuous rainy days. The temperature is kept at 4 ∽ 10 degrees in winter, the growth of plants below 3 stops, and the high temperature can withstand 35 degrees in summer.

Water and fertilizer control

Petunia like fertilizer, the planting process needs to apply sufficient water fertilizer, nitrogen, phosphorus and potassium fertilizer can be applied every half a month, can effectively promote the root system strong branches and leaves luxuriant, stop nitrogen fertilizer before flowering, topdressing phosphorus and potassium fertilizer at flowering stage. During the peak growth period in summer, to maintain sufficient water, we can choose to water in the morning and evening, keep the basin soil moist but not stagnant, the root of the stagnant water rotts and the whole plant wilts and dies. Just keep the basin soil moist in winter.

Pruning and shaping

The branches of hanging petunia grow fast, and some plants have few branches, which will cause the flower basket to be not plump, so it is necessary to reshape and prune in time. When the branch has 15-20 branches, it can make the plant hang and grow. The aged branches should be pruned in time, new branches should be sprouted, and the failed buds should be cut off during flowering to avoid absorbing too much nutrients, such as yellowing old leaves.

Daily management

The hanging petunia has strong disease resistance, but too much watering will lead to plant aging or root rot and death. Excessive drought can lead to the death of plant leaves. When the fertility is insufficient, it can also cause yellowing of leaves, smaller leaves, less flowers and lighter flower color.

Hanging petunia is rich in flowers and colors, beautiful flowers, has a very good ornamental value, this flowering period is long, is a good hanging orchid flowers, like flowers and plants can be planted yo.

The cultivation method of hanging Petunia Petunia likes light and fertilizer and is afraid of drought, so it should be cultivated in an environment with sufficient light. Under the condition of sufficient light, the branches can blossom when they grow to about 10 cm. In order to ensure that the leaves of hanging petunia are dark green and the flowers often bloom, fertilizer should be applied in time, nitrogen fertilizer should be reduced and phosphorus and potassium fertilizer should be increased at flowering stage. And pay attention to clean up the yellowed old leaves and get rid of the failed buds. In the process of cultivation, we should pay attention to the following points: first, seedling management when the two true leaves of the seedlings develop green, start foliar fertilization, the initial concentration should be lower (such as 75 μ l / L nitrogen), and then gradually increase the concentration, it is best to apply all-element fertilizer. In the seedling stage, we should spray water in time, and gradually reduce the number of water spraying, and finally see the dry wetland watering. If the temperature and humidity in the seedling stage are too high, fungicides should be sprayed to prevent the occurrence of quenching disease. Second, transfer the seedling, the upper pot waiting for the seedling root system to develop so that the seedling can be easily pulled out from the hole plate, transferred to a small nutrition bowl or directly transplanted to the special basin of the gondola. According to the size of the pot, 5 plants can be planted in each pot. In this way, different specifications of hanging petunia can be obtained in a short time. If the seedling is not raised in a burrow tray, a seedling tray should be used. Generally, when there are 2-4 true leaves after emergence, they need to be transplanted once, and when there are 6-8 leaves, they can be put on the basin with a diameter of 10-14 cm. The upper pot soil is suitable for culture soil, and the pH value is 5.8-6.2. If the plant is greater than 6.5, there will be yellow leaves caused by iron deficiency. Third, in the early stage of temperature regulation, the temperature is still maintained at 18: 20 ℃, and then it can drop to 12: 16 ℃. Low temperature is beneficial to the accumulation of plant matter and enhances the branching ability of its base, and the lowest temperature can reach 3 ℃, but too low temperature for a long time will also cause yellow leaves. Fourth, humidity control avoid too much water in the substrate, such as long-term stagnant water in the basin, often root rot, the whole plant wilted and died. It is very important to keep the substrate dry, so the potted soil should be well drained, and the water can be increased appropriately at the initial stage of growth, but it should be kept dry about 7 days before coming out of the nursery to prevent the overgrowth of plants. Fifth, the light regulation of petunia needs to blossom under the condition of long sunshine, and the short-day note can inhibit the flower bud and provide a sunshine length of 13 hours. When the light is weak and the sunshine is short, the supplementary light is about 4500~7000Lx, which is beneficial to flowering. Under normal sunlight, most petunia varieties take about 100 days from sowing to flowering. If there is not enough light or too much rain, the flowering is often delayed by 10 to 15 days, and the number of flowers is small. 6. Fertilization management in order to make the plant have strong roots and luxuriant branches and leaves, fertilization is very important. Compound fertilizer (20-5-30) and calcium and magnesium (13-2-13-6Ca-3Mg) are applied alternately. The EC value of the matrix was maintained at 110112. For rattan petunia varieties, the fertilizer application rate should be larger, the fertilization concentration should be increased from 100~150mg/kg to 200mg/kg, and the medium EC value can also be 1.2-1.5. If strip yellowing occurs in leaves, it is often caused by boron deficiency and calcium, which can be remedied by boron 40~60mg/kg or calcium compound fertilizer. 7. Reshaping and pruning if the branches are few and the branches grow fast, the flower basket will not be plump, so it is necessary to reshape and prune in time. When the Petunia grows 15-20 branches, it can hang and grow. The aged branches should be pruned in time to regenerate them. Eighth, pest control hanging petunia has strong disease resistance, generally no disease, but too much watering can cause its aging or root rot and death. Excessive drought will lead to the drying and aging of plant leaves and the death of old leaves. When the fertility is insufficient, it can also cause yellowing of leaves, smaller leaves, less flowers and lighter flower color. If the maintenance time of the plant is too long, or if the cutting seedlings are cultivated, if the plant leaves become smaller, it is likely to be caused by the virus. The common pests of hanging petunia are whitefly and leaf miner, so timely control is very important. Leaf miner can be controlled with 800x solution of trichlorfon and whitefly can be controlled with 1000-fold solution of aphid lice. Cultivation methods and precautions of hanging Petunia Petunia likes light, fertilizer and fear of drought, so it should be cultivated in an environment with sufficient light, and the branches can blossom when the branches grow to about 10 centimeters under sufficient light. In order to ensure that the leaves of hanging petunia are dark green and the flowers often bloom, fertilizer should be applied in time, nitrogen fertilizer should be reduced and phosphorus and potassium fertilizer should be increased at flowering stage. And pay attention to clean up the yellowed old leaves and get rid of the failed buds. In the process of cultivation, we should pay attention to the following points: first, seedling management when the two true leaves of the seedlings develop green, start foliar fertilization, the initial concentration should be lower (such as 75 μ l / L nitrogen), and then gradually increase the concentration, it is best to apply all-element fertilizer. In the seedling stage, we should spray water in time, and gradually reduce the number of water spraying, and finally see the dry wetland watering. If the temperature and humidity in the seedling stage are too high, fungicides should be sprayed to prevent the occurrence of quenching disease. Second, transfer the seedling, the upper pot waiting for the seedling root system to develop so that the seedling can be easily pulled out from the hole plate, transferred to a small nutrition bowl or directly transplanted to the special basin of the gondola. According to the size of the pot, 5 plants can be planted in each pot. In this way, different specifications of hanging petunia can be obtained in a short time. If the seedling is not raised in a burrow tray, a seedling tray should be used. Generally, when there are 2-4 true leaves after emergence, they need to be transplanted once, and when there are 6-8 leaves, they can be put on the basin with a diameter of 10-14 cm. The upper pot soil is suitable for culture soil, and the pH value is 5.8-6.2. If the plant is greater than 6.5, there will be yellow leaves caused by iron deficiency. Third, in the early stage of temperature regulation, the temperature is still maintained at 18: 20 ℃, and then it can drop to 12: 16 ℃. Low temperature is beneficial to the accumulation of plant matter and enhances the branching ability of its base, and the lowest temperature can reach 3 ℃, but too low temperature for a long time will also cause yellow leaves. Fourth, humidity control avoid too much water in the substrate, such as long-term stagnant water in the basin, often root rot, the whole plant wilted and died. It is very important to keep the substrate dry, so the potted soil should be well drained, and the water can be increased appropriately at the initial stage of growth, but it should be kept dry about 7 days before coming out of the nursery to prevent the overgrowth of plants. Fifth, the light regulation of petunia needs to blossom under the condition of long sunshine, and the short-day note can inhibit the flower bud and provide a sunshine length of 13 hours. When the light is weak and the sunshine is short, the supplementary light is about 4500~7000Lx, which is beneficial to flowering. Under normal sunlight, most petunia varieties take about 100 days from sowing to flowering. If there is not enough light or too much rain, the flowering is often delayed by 10 to 15 days, and the number of flowers is small. 6. Fertilization management in order to make the plant have strong roots and luxuriant branches and leaves, fertilization is very important. Compound fertilizer (20-5-30) and calcium and magnesium (13-2-13-6Ca-3Mg) are applied alternately. The EC value of the matrix was maintained at 110112. For rattan petunia varieties, the fertilizer application rate should be larger, the fertilization concentration should be increased from 100~150mg/kg to 200mg/kg, and the medium EC value can also be 1.2-1.5. If strip yellowing occurs in leaves, it is often caused by boron deficiency and calcium, which can be remedied by boron 40~60mg/kg or calcium compound fertilizer. 7. Reshaping and pruning if the branches are few and the branches grow fast, the flower basket will not be plump, so it is necessary to reshape and prune in time. When the Petunia grows 15-20 branches, it can hang and grow. The aged branches should be pruned in time to regenerate them. Eighth, pest control hanging petunia has strong disease resistance, generally no disease, but too much watering can cause its aging or root rot and death. Excessive drought will lead to the drying and aging of plant leaves and the death of old leaves. When the fertility is insufficient, it can also cause yellowing of leaves, smaller leaves, less flowers and lighter flower color. If the maintenance time of the plant is too long, or if the cutting seedlings are cultivated, if the plant leaves become smaller, it is likely to be caused by the virus. The common pests of hanging petunia are whitefly and leaf miner, so timely control is very important. Leaf miner can be controlled with 800x solution of trichlorfon and whitefly can be controlled with 1000-fold solution of aphid lice.