What are the management measures for calendula?

Temperature. The suitable temperature for the growth of calendula is generally higher than 5 degrees and lower than 20 degrees.

Note that the temperature is too low in winter, it is best to cover it with film.

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Humidity. Seedlings have high requirements for air humidity.

The potting soil of the growing calendula should not be too wet, and it is best to dry it during the maintenance process.

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Soil. Fertile and loose sandy soil is preferably used for soil.

The soil is fertile, which is more conducive to the growth of calendula.

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Illumination. You need light, and you need enough light to grow well.

Be careful not to maintain it in a cool place, yellowing of the leaves means a lack of light <>

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Reproduction. Calendula is generally propagated by sowing seeds.

Pay attention to pot planting, the soil needs to be disinfected beforehand.

After sowing, it needs to be covered with shallow soil.

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Pest control. It is not suitable for indoor maintenance.

It is best to have medicine to remove pests and diseases at home.

Early summer and early spring are most susceptible to pests and diseases.

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Calendula management measures: Calendula is relatively easy to cultivate. Autumn seedlings can be planted on the north side of the cold bed in late October for overwintering.

Because the branches and leaves of calendula are relatively large and grow fast, they should be planted in time in early spring to prevent overgrowth, and generally bloom in late March, planted in April, and enter the full flowering period in mid to late May. If it is sown in early autumn, it is used for pot cultivation. When frost is to be moved into a low-temperature greenhouse for cultivation, the temperature is maintained at 8 10, carefully managed, and flowers can be used in winter.

Calendula likes fertilizer, so the growth period should ensure the best fertilizer and water, and nitrogen, phosphorus and potassium should be used together when fertilizing. If there is a lack of fertilizer, the flowers will be small and mostly single-petaled, and it is easy to cause the degradation of the variety; It should be paid more attention when breeding as a good breed.

When cultivating indoors, sufficient light and ventilation should be given, and watering should be done in a timely manner, but not excessively. Due to the long flowering period of calendula, at the same time in the fertilizer is less, the flower is easy to become smaller when the management is not good, and the single petal appears more, and the variety is very easy to degenerate, so it is necessary to top dressing in time according to the growth of the plant, generally 2 3 weeks to water 1 thin liquid fertilizer.

When cultivating cut flowers, the main branches should be topped at the seedling stage to promote the growth of side branches, increase the flower heads, and lengthen the flower stalks.

Calendula cultivation method:

1. Soil: Regardless of soil, it is advisable to use fertile, loose and well-drained sandy loam or culture soil, and the soil pH is 6-7. In this way, the plant has many branches and large and numerous flowers.

2. Sunlight: Spring, summer and autumn need to be maintained under shady conditions. When the temperature is high (daytime temperature above 25), if it is kept in direct sunlight, the leaves will become significantly smaller, the branch internodes will be shortened, the foot leaves will yellow, fall off, and the growth will be very slow or enter a semi-dormant state.

In winter, direct sunlight should be given to facilitate photosynthesis and the formation of flower buds, flowering, and fruiting.

3. Temperature: like warm climate, the most suitable growth temperature is 15 25, avoid extreme heat, and obviously grow poorly when the temperature is higher than 34 in summer; Not frost-tolerant, it goes into dormancy or dies when the temperature drops below 4 in winter.

4. Fertilization: 7-10 days after planting, topping to promote branching or spraying the foliage with a long solution 1-2 times to control the height of the plant. Fertilize once every half month during the growing season, or use "Huiyou" 20-20-20 general fertilizer.

Fertilizer is abundant, calendula flowers are numerous and large. On the contrary, the fertilizer is insufficient, and the flowers are noticeably smaller and degraded.

Calendula is in the Asteraceae family.

One and two annual herbaceous flowers, 30 60 cm high, pale yellow to dark orange-red, flowering period 4 June, is an important spring flower.

It likes full sunshine, but also slightly shade-tolerant, likes cold and cool summer, and is not resistant to heat, but it is more cold-resistant, especially small seedlings are more resistant to low temperature than large seedlings. It is more adaptable and more resistant to drought and barrenness, but grows well on loose, fertile soils.

Calendula is usually cultivated as a biennial. Autumn sowing in North China is sown in early to mid-September, seedlings emerge in about 1 week, and overwintering in cold beds in late October. Calendula grows fast, the stems are thick and the leaves are large, and it should be planted in time in early spring, and it can bloom in April and May.

Spring sowing is sown in the greenhouse in February and March, flowering in June, poor growth in the summer of high temperatures, less flowering, can be cut off in time, and flowering can continue in autumn.

Calendula used for seed harvesting should be fertilized, otherwise it is easy to degrade. It can be sown and reproduced, and the seed life is 3 to 4 years.

Calendula flowers are diverse, with golden yellow and orange red commonly used, and the ornamental effect is better.

Calendula blooms in early spring and is brightly colored, and is widely used as a material for flower beds, as well as as cut flowers or potted plants.

The planting and maintenance method of calendula, the flowering period is super long, and the flowers can also be made into tea.

For seed treatment, first select the full seeds, disinfect them, and soak them in warm water for 8 to 9 hours; Disinfect the soil, disinfect the soil, and then apply the base fertilizer and stir evenly to keep the soil moist; Sow seeds into the soil, sprinkle the seeds into the soil respectively, and control the temperature at about 20 degrees after pouring water; Post-planting maintenance, in the seedling stage, give sufficient light time every day, fertilization is mainly based on phosphorus and potassium fertilizer.

1. Seed treatment.

The seeds of calendula are very small, first select the full seeds that grow robustly and without disease, so as to ensure the germination rate, soak them in disinfectant solution for 3 5 minutes, and then soak them in warm water for 8 9 hours, and keep the water temperature at about 40 degrees to promote its water absorption and expansion.

2. Disinfect soil.

Calendula likes to grow and develop in loose and rich organic soil, before planting, it is necessary to apply a fermented organic fertilizer to the soil, keep it warm after watering, and also sterilize and disinfect the soil once to improve the emergence rate.

3. Sow seeds into the soil.

The treated calendula seeds are planted in the soil correspondingly, poured with 1 root water, keep the soil warm, control the temperature at about 20, and germinate after about a week, and after the appearance of true leaves, you can transplant the treatment to promote the growth and development of rhizomes.

4. Post-planting maintenance.

When the plant height reaches 8 10 cm, at this time to maintain sufficient sunlight every day, but strong light can be properly shaded, watering 1 time a day, often keep the soil warm and moist, seedling top dressing is mainly phosphorus and potassium fertilizer, the growth period can be appropriately added 1 2 times of cake fertilizer.

Calendula is usually propagated by seeding. It looks simple, but calendula is different from other plants. Because calendula should be treated at low temperature before sowing, put the good seeds in the 0 refrigerator for 24 hours, and the treated seeds can be sown in the open field.

Generally, you can see the growth of young shoots in August, and the blooming of calendula around September. Growing environment: The most suitable breeding temperature for calendula is 7 20, and calendula itself has strong resistance to low temperatures, so calendula seedlings can grow in an environment below minus 8.

However, if the calendula style persists at low temperatures, its fire bull must be kept warm. For example, the film should be used rationally to prevent the damage of cold air to the seedlings. Although thermal insulation measures are required, it is best not to exceed 10 in winter calendula cultivation temperature.

Sunlight is important for the style of calendula. If calendula is always in a dark environment, it is easy for the branches and leaves of calendula to turn yellow, and the whole plant of calendula seems to be easily delirious and sick, which can greatly reduce the ornamental value of calendula. Therefore, calendula can be cultivated with proper light.

But the temperature of calendula cultivation should not be too high. In summer, when the daytime temperature reaches more than 25, it is best to breed in a astigmatism environment. The temperature is low in winter, so you can get a lot of lighting.

Fertilizer: In the process of cultivating calendula, if there is too little fertilizer, the branches and leaves sometimes fall off or flower. Fertilizer program:

Generally, one week after calendula is officially consumed, Huayu can spray diluted ferrous sulfate solution on the foliage. In the peak growing season, you can add about half a month of special flower fertilizer, mainly using general fertilizer for planting compound fertilizers and other plants.

Calendula does not require much water, but calendula lacks water during the growing period, and the plant is prone to shortening, so it is necessary to keep water**. Water supply plan: After entering June, it can be watered every three days.

After August, the climate is drier, so you should water at least once a day. After entering spring or autumn* watering according to the dryness of the soil. As long as it is kept wet and dry, the principle of watering is best.

Usually in the process of calendula cultivation, a paddle or yellow leaf can be pruned every two months, pruning can not only correct the shape of the plant, but also effectively avoid the loss of nutrients. Prevention of pests and diseases: In the process of calendula breeding, if there is a hazard of wilt or downy mildew, it can be removed in time or sprayed with diluted Dasanyan solution.

Generally, planting should be started in autumn, and at the same time, you should pay attention to the time of sowing, and you should water and fertilize regularly, and you should also pay attention to the air permeability of the soil, and you should also pay attention to the problem of light.

When planting, it must be placed in the sun, and it should also be watered and fertilized, and some nutrient solution should be added, so that it can be better absorbed, and the temperature should also be controlled.

Pick a piece of fertile soil and plant it in it, remember to water it a little, apply some fertilizer, and then spray it with pesticides, paying attention to the time of daylight.

It is very important to choose the right environment for breeding, you need to prepare relevant items in advance, prepare the right soil, so that you can grow better, you must choose the right plants for planting, pay attention to fertilization, pay attention to ventilation.

Like light, put a bright and ventilated place on the balcony, dry and watering in time, afraid of drought pay attention to watering in time

The problem that needs to be paid attention to when sowing calendula is that we must pay attention to the weather of planting calendula, and also pay attention to the need to top dressing the calendula in the process of calendula growth, and also pay attention to the water and fertilizer management of calendula, and also pay attention to the temperature and acre degree of calendula growth, and also pay attention to the management of deworming calendula.

First of all, when planting, we must choose the soil is more fertile and broad land, and in the process of fertilization, we must use farmhouse fertilizer, do not use the fertilizer bought outside, and often water the plants to prevent the occurrence of pests and diseases. And be sure to soak the seeds in water for about three hours before planting.

It is necessary to carry out strict water and fertilizer management, and at the same time, it is necessary to go to Wu Qifu to choose the environment and place suitable for the survival of marigold cavity and chrysanthemum, and also to grasp the humidity in the air of the empty ruler, and at the same time should be watered in time. It is also necessary to prune branches and leaves in time to prevent pests and diseases.

When planting, we must choose loose and fertile soil, soak seeds before planting, so that the first mill can improve the survival rate of seeds, and after planting, put it in a sunny place, but also strengthen ventilation, strengthen the fertilizer of the addition of celery, and strengthen the protection of pests and diseases in the later stage, so that calendula can grow better.

Pay attention to the soil for planting, but also to promote germination, but also to ensure that this temperature is good, in the later stage, you should also remember to water and fertilize, weeding.

In the process of cultivating calendula, the mixed soil of peat, perlite and cinder can be selected as nutrient soil to ensure that the pH value of the soil is between 6 7, and sufficient light treatment should be given during the growth period, the temperature should be controlled at about 10 20, and the watering should keep the potting soil moist, and the air humidity should be kept at about 40 60%.

1. Soil management

Calendula does not have high requirements for soil, but it is more suitable for growing in fertile and loose sandy soil, and it is necessary to ensure that the pH value of the soil is between 6 and 7, so that it can promote more branches and large flowering, and you can choose a mixture of peatsoil, perlite and cinder as nutrient soil, and put some river sand at the bottom of the pot.

2. Light and temperature treatment

Calendula likes to grow in full sun, especially during the seedling period to give long sun treatment, which is more beneficial to the growth of stems and leaves, its growth temperature is about 10 20, when the temperature is too low, it should be covered with a film to prevent cold, and the temperature in summer is higher than 28 to move to a ventilated and cool place for maintenance.

3. Reasonable watering

Reasonable watering is one of the breeding methods and precautions of calendula, watering during the growth period to keep the pot soil moist is appropriate, in order to facilitate the growth of stems and leaves, in order to improve the cold resistance in winter, watering to keep the pot soil slightly dry, so as not to cause growth, indoor greenhouse cultivation, air humidity to keep at about 40 60%.

4. Regular fertilization

When the plant is planted one week after the treatment, the topping treatment to promote the growth of branches can be combined with fertilization, mainly to spray foliar fertilizer, apply fertilizer once every half month during the growth period, you can use the special flower fertilizer bought by the flower shop, often keep the fertilizer sufficient, can promote the flowering of calendula.

If the indoor ventilation is poor and the humidity is large, the plant will be easy to breed the harm of blight and downy mildew, and the surrounding ventilation can be increased under the conditions of high temperature and high humidity.