How to plant jasmine and cash cow?
Jasmine likes sunshine and is hot, so it must be placed in a sunny place, otherwise it will grow weakly and will not bloom easily.
Prune in time after each flowering and apply phosphorus and potassium fertilizer. Generally, three rounds can be held in one summer.
Do a big pruning before growing leaves in spring.
Nothing else. Key points of jasmine flower conservation
First, the temperature. Jasmine likes high temperature. Generally, it begins to germinate around 20℃, and forms buds above 25℃ and around 28℃ to 33℃. When the temperature is too high, the plant is semi-dormant, with few and uneven flowers. When the temperature is too low, plants grow slowly and can't stand the low temperature. If the temperature is below 5℃ for a long time, some branches will freeze to death.
Second, light. Jasmine likes sunny environment, sunny, dark green leaves, thick branches, many buds, good coloring and strong fragrance. Otherwise, the plant will grow white, with light green and thin leaves, slender branches, long and tender internodes, few buds, small flowers and light fragrance.
Third, moisture. Jasmine likes wet soil. However, for fear of water accumulation in the basin, if the basin soil is kept wet for a long time, the roots will rot due to lack of oxygen in the basin soil, the leaves will gradually turn yellow and fall off, and even the whole plant will die.
Fourth, fertilization. Jasmine likes fertilizer, but fertilization should be carried out according to its growth law. When the temperature exceeds 35℃ in winter and summer, adequate and reasonable fertilizer should be maintained during the growing period, and no fertilizer should be applied. Pay attention to the uniform proportion of nitrogen, phosphorus and potassium fertilizer, with phosphorus and potassium fertilizer as the main fertilizer to promote the formation of more flower buds. Don't use excessive fertilization or immature organic fertilizer to avoid root burns and yellowing of leaves. Spraying once every 65,438+0 weeks to 2 weeks during the whole growth period.
Five, pest control. Jasmine is vulnerable to pests such as red spider, so it is necessary to strengthen ventilation and observe at ordinary times. Once pests are found, dicofol should be used for prevention and control in time. Jasmine leaf spot is a common disease of jasmine, which usually occurs in May-June and peaks in July-August. At the beginning of the disease, light brown spots appeared on the infected leaves, and then spread around. The lesion site is thin, brown, transparent, round or irregular, thin, translucent and brown, and the edge of the lesion is obvious. Finally, black particles were born on the lesion. The diseased leaves should be removed in time and destroyed centrally. Spraying 600-800 times solution of 65% zineb wettable powder or 800 times solution of 75% chlorothalonil wettable powder for 3-4 times at intervals of 10 to 14 days.
How to make jasmine blossom more?
1. Environment and lighting: Jasmine likes a hot, humid, ventilated environment and needs sufficient lighting. Molly is afraid of cold. Potted jasmine in the south can be cultivated outdoors for the winter. In the north, keep warm in autumn and winter, move indoors and put it in the south direction. Strong sunlight makes branches strong, leaves dark green and flowers more fragrant, while insufficient sunlight makes flowers less fragrant.
Second, moisture: jasmine is not drought-tolerant, but it is necessary to avoid water accumulation. Pour out the water in the basin in time during the rainy season, otherwise the leaves will turn yellow easily. Water the leaves twice a day on a hot sunny day in summer, once in the morning and once in the evening. If you find the leaves drooping, spray water on them to promote growth.
3. Soil: It is best to plant jasmine in fertile sandy and semi-sandy soil. When planted in slightly acidic soil with pH value of 6-6.5, the root system will be dense and grow vigorously. If the soil is sticky, lacks matrix, has low fertility and poor ventilation, there will be fewer roots, short plants, slender stems and leaves, and few and small flowers.
Fertilization: The high temperature season in midsummer is the peak of jasmine growth. Apply more organic fertilizer and phosphorus and potassium fertilizer, such as peanut cake powder, bone meal, calcium superphosphate and multi-element flower fertilizer twice a month. In summer, jasmine is often leafy but does not bloom. The main reason is that too much nitrogen fertilizer is applied, resulting in too many branches and leaves. In this case, it is necessary to control fertilizer and water, apply more phosphorus and potassium fertilizers to promote germination, and at the same time pay attention to moving jasmine to a sunny and well-ventilated place.
5. Pruning: Jasmine grows very fast in summer, so it should be pruned in time. The base of potted jasmine is trimmed to 10 cm to 15 cm, which will promote most robust new shoots. For example, new shoots grow vigorously, and when they grow to 10 cm, they should be pruned to promote the growth of secondary branches, which will lead to more flowers and compact plant types. After the flowers wither, the branches should be cut off in time to reduce nutrient consumption, which is also conducive to promoting the growth of new shoots, making the branches dense, with more buds and more flowers.
6. Pest control: Jasmine often suffers from moth larvae, scale insects and red spiders, which are the most serious from July to September and often eat flower buds. It can be sprayed with universal powder or pyrethroid and 200 times of water once every half month, even if there are no pests and diseases, so as to prevent problems before they happen. The suitable spraying time is 9: 00 am and 4: 00 pm on sunny days, and it is not suitable to spray in the hot sun at noon to prevent phytotoxicity.
Seven, flowering maintenance: don't spray water on the flowers during flowering to prevent premature flowering and fragrance loss. When it rains, the potted jasmine should be moved to a shelter. Cultivation method of cash cow Author: Passerby A Published on August 26th, 2007
Money tree is a perennial evergreen herb belonging to Araceae and Araceae. This is a rare underground tuber foliage plant, native to tropical Africa. There is no main stem on the ground, and adventitious buds germinate from tubers to form large compound leaves, with fleshy leaflets and short, solid and dark green petioles; The underground part is a big tuber. Root-tuber leaves, pinnate compound leaves protrude from the top of tuber, leaf axis is stout, and leaflets are opposite or nearly opposite on leaf axis. The petiole base is enlarged and lignified; Each compound leaf has 6 ~ 10 pairs of leaflets, with a life span of more than 2 ~ 3 years, and there are new Ye Gengxin.
Ecological habit
Cash cow is produced in the tropical (grass source) climate zone with less rainfall in East Africa. It likes warm, slightly dry, semi-cloudy and small annual temperature difference. Resistant to drought, but afraid of cold, avoid strong light, afraid of clay, afraid of basin soil water. If the basin soil is impermeable to water, it will easily lead to tuber rot. The soil is required to be loose and fertile, well drained, rich in organic matter and acidic to slightly acidic. Strong germination, after cutting off the thick compound leaves, the top of the tuber will soon grow new leaves.
Replication technology
In April, when the outdoor temperature reaches 18℃ or above, take out the big plant of money tree from the pot, shake off most of the soil, break it from the weak node of the tuber sheep, and apply sulfur powder or plant ash, another potted seed, to the wound. When planting, be careful not to bury it too deep, just bury the top of its tuber under the soil 1.5 ~ 2 cm. In addition, according to the characteristics of tubers with latent buds, a huge single tuber can be cut into small pieces with 2-3 latent buds. After the wound is dried, it is first buried in slightly wet fine sand, and the cut small tubers grow into independent plants before being planted in potted plants.
Cuttings can use a leaf shaft with a small leaf and two leaves or a single leaf shaft. Judging from the rooting effect, the cuttings with leaves on the leaf axis have faster rooting speed, higher buds in the north and easier to grow into larger tubers. Cut a single leaf on the mixed substrate of river sand and vermiculite. After 65,438+00 ~ 65,438+04 days, bulbous stems with roots can be formed at the base of leaves. After 2 ~ 3 months of cultivation, a small seedling can grow, but generally speaking, the seedling rate is not high. If the blade shaft or blades with blade shaft are used as cuttings, the substrate can be ordinary fine sand, or peat soil, perlite and river sand are mixed at the ratio of 3: 1: 1, and the cutting depth is1/3 ~12 of the ear length, and only leaves are left outside the substrate, and water is sprayed. When the cuttings form a certain root system, the middle part of the root gradually expands to form a small spherical tuber, and the tuber gradually increases. Some young cuttings will turn yellow and die after being put into the pot due to high temperature or poor water management, but the tubers can survive, and the mature leaves and cuttings with total petioles can also remain green and energetic. A small number of tubers can germinate and grow new leaves in the same year, but the growth potential is weak and slow. In the second year, the tubers will grow strong new buds and grow normally.
The optimum temperature for cultivation management is 20 ~ 32℃. No matter potted plants or ground plants, it is required that the annual average temperature change is small, so it is best to carry out productive cultivation in a greenhouse with controllable temperature. Every summer, when the temperature is higher than 35℃, plants grow poorly. We should cover them with a black net to shade them and spray water on the surrounding environment to cool them down, so as to create a suitable and dry environment for them. It is best to keep the greenhouse temperature above 10℃ in winter. If the room temperature is lower than 5℃, it will easily lead to plant chilling injury and seriously endanger its survival. In late autumn and early winter, when the temperature drops below 8℃, it should be moved to a well-lit room in time, and the temperature should be kept between 8℃ and 10℃ during the whole wintering period, which is safer and more reliable.
Light cash cows like light and have strong shade tolerance, so we should create a sunny but cool environment for them. Direct sunlight should be avoided, especially after a long rain in late spring and early summer. Bake in strong light for 5-6 hours around noon in summer, otherwise it will easily lead to burns of newly-picked leaves. In productive cultivation, it should be placed under a shade shed with a shade of 50-70% from late spring to Mid-Autumn Festival, but it should not be too dark, otherwise the newly picked leaves will be slender, yellow and the spacing between leaflets will be sparse, which will affect the compactness and aesthetics of the plants. In winter, the potted plants moved into the shed should be filled with light. The soil moisture in the basin is kept dry, and plants can be kept disease-free for many years. The newly extracted pinnate compound leaves did not show obvious phototaxis and the plant type was good.
In order to protect potted cash cows, efforts should be made to create a humid and dry environment for them. In productive cultivation, plants placed in greenhouse should be sprayed with water once a day when the room temperature reaches above 33℃. Because plants are drought-tolerant, it is better to keep the soil slightly wet and dry, but occasionally watering too much water and fertilizer will not cause root rot. In winter, we should pay attention to spraying water on the blades and the surrounding environment, so that the relative humidity of the air can reach more than 50%. After the Mid-Autumn Festival, we should reduce watering, or spray water instead, and use the newly-picked leaves yesterday to spend the winter safely. In addition, special attention should be paid to the fact that the soil in the basin should not be too wet in winter, and it is better to be dry. Otherwise, under the condition of low temperature, the pot soil is too wet, which is more likely to lead to root rot or even the death of the whole plant.
Due to the special climatic conditions of the origin of the money tree, the soil has formed a strong drought resistance, so the basic requirement for the cultivation substrate is good air permeability. The basic requirement of cultivation substrate is good permeability. Peat, coarse sand or washed cinder are mixed with a small amount of garden soil, and the PH value is adjusted to 6 ~ 6.5, which is slightly acidic. Because of its huge tuber, developed root system and long pinnate compound leaves, it is necessary to observe its growth in time during the growing season to decide whether to change pots and soil. Always maintain the permeability of the culture medium to create a good root environment for ventilation and water filtration. Check frequently in rainy season, and turn over the basin and change the soil in time when water is found in the basin.
Fertilizer "cash cow" likes fertilizer. In addition to adding a proper amount of baked cake fertilizer or multi-element slow-release compound fertilizer to the cultivation substrate, the mixed solution of 0. 1% urea and 0. 1% potassium dihydrogen phosphate can be applied 2-3 times a month in the growing season, or 20- 10-20(20-20-20). After the Mid-Autumn Festival, in order to make it overwinter safely, nitrogen fertilizer should be stopped and 0.3% potassium dihydrogen phosphate solution should be applied for 2 ~ 3 times continuously to promote the hardening and enrichment of young leaf shafts and newly-pumped leaves. When the temperature drops below 15℃, all forms of topdressing should be stopped to avoid fertilizer damage and root damage under low temperature.
Eliminate pests and diseases
Freezing injury When the temperature drops below 5℃ in winter, when the soil in the basin is wet, it is easy to cause the young leaves of plants to fall off due to freezing, and when it is serious, it will cause tuber rot and it is difficult to restore vitality.
Prevention and control methods: During productive cultivation, the greenhouse temperature should be kept not lower than 65438 00℃ and the pot soil should be kept slightly dry.
Burning in hot summer, or sunny weather after a long rain in Chu Qing, or the flowerpots that have just been moved outdoors for restoration and maintenance are placed indoors for a long time and directly exposed to the sun, it is easy to burn their fat and tender leaves, resulting in partial loss of green and whitening, or the whole leaves are burned, and the late necrotic parts turn brown and black.
Brown spot disease mostly occurs on leaves, and the lesion is nearly round, taupe to yellowish brown, and the edge color is slightly darker. The disease is easy to occur under the conditions of high temperature and humidity and poor ventilation. Prevention and control methods: when a small number of diseased leaves are found, they should be removed and destroyed in time. At the initial stage of the disease, 600-fold solution of 50% carbendazim wettable powder or 500-fold solution of 40% chlorothalonil suspension/kloc-0 was sprayed on the leaves every 10 day for 3 ~ 4 times, and the control effect was good.
Prevention and control methods: after entering summer, plants should be moved to semi-cool environment in time. If it rains for a long time in late spring and early summer, it should be planted as soon as possible.
In the environment with poor ventilation and poor light, the leaves of money tree are easily sucked by scale insects.
Control method: In productive cultivation, 20% chlorpyrifos wettable powder 1000 times can be sprayed at the peak of nymph hatching, which has good insecticidal effect.