How to plant cosmos, cosmos seed planting method/pre-seed seed first to promote

Among the reproduction methods of cosmos, sowing and reproduction is a more commonly used method. After numerous experiments, the survival rate is still relatively high, but there are many places to pay attention to if you want to plant successfully. How to grow cosmos? What is the planting method of cosmos seeds? The following small series takes everyone to understand.

1. How to plant cosmos and sow seeds

2. When to sow cosmos, spring and autumn

When we sow and reproduce cosmos, it is very important to choose the appropriate time. Generally, it is best to sow in spring and autumn. If it is planted in spring, it can bloom from June to August. If it is planted in autumn, it can bloom around October.

3. Cultivation methods of cosmos seeds

1. Soil selection, soil drainage is good

Before planting cosmos, we must first choose the soil, which is a very important part. Choosing a suitable soil can also greatly improve its survival rate. Cosmos prefers sandy soil with high porosity. The drainage and permeability of this soil are relatively good. It will be of great help to the growth of plants, and it is not easy to cause ponding.

2. Seed stimulation, warm water immersion

Before sowing cosmos, we should first stimulate the seeds. We can soak the seeds in warm water for 12-24 hours. When the seeds begin to absorb water and expand, we can take them out and sow them. After stimulation, the germination rate of the seeds will be higher.

3. Sowing method: applying base fertilizer before sowing

When it comes to the planting method of cosmos seeds, in fact, the method is very simple, first we can apply appropriate amount of base fertilizer in the soil, and then spread the seeds evenly on the soil surface, and then cover 1-2cm of soil above it can be watered. Pay attention to watering when watering, remember not to accumulate water, and the seeds can emerge one week after watering.

4. Follow-up management, follow-up maintenance should be careful

We can not immediately place it in the sun after sowing cultivation, need to put it in the shade for about a week, wait until the seeds emerge and then move it to the sun cultivation can be, in the breeding time there are many places to pay attention to, if you do not know how to raise it can refer to the cultivation method of cosmos article, which has believed in conservation teaching.

How to plant seeds of cosmos seeds and precautions

Cosmos is a variety of chrysanthemum, introduced from abroad, cultivated in China. At present, it can be seen in many places in China. Cosmos because of high ornamental value, so by people like, many people want to plant it. However, before planting, everyone must be most concerned about its planting technology.

How do you plant seeds?

1) The planting season. When summer flowering is required, sowing should be carried out in early spring from February to March, preferably under controlled temperature and humidity. If you plan to sow in the open air, you should sow in mid-April when the temperature is right. When the temperature is right, you can sprout in about a week. Those that need to bloom in autumn, that is, to celebrate the National Day, can be sown in July and August. The cosmos sown in this season is short and strong, and neat and beautiful.

2. Sowing soil. Sowing medium should be loose and rich in organic matter, and a certain amount of decomposed organic fertilizer should be applied before sowing. When sowing, mix the seeds evenly with a certain amount of sand, and spread them evenly on the seedbed, covering the soil about one centimeter later. After sowing, the soil moisture should be maintained, and the temperature should be controlled at about 18℃ to germinate.

3. Sowing seedlings. When the seedlings grow 4 to 5 true leaves, transplant them into a nutrient bowl and remove the core. Seedling growth period does not need to apply topdressing, so as not to cause excessive growth of branches and leaves, affecting flowering.

Seed planting method of cosmos

1. Transplantation: seedlings with 4 - 5 true leaves are transplanted and removed, or seedlings can be thinned after direct seeding. If the planting ground is applied with base fertilizer, no fertilizer is needed during the growth period. If the soil is too fertile, the branches and leaves are easy to grow and the flowering is reduced. During the high temperature period from July to August, flowering plants are not easy to bear seeds.

2, light: cosmos strong, like sunlight, drought resistance, soil requirements are not strict, but can not accumulate water. If it is planted in fertile soil, it is easy to cause excessive growth of branches and leaves, affecting the quality of flowering.

3. Fertilization: Transplant seedlings 5 cm high, transplant when leaves 7~8, or thin seedlings after direct seeding. If the planting ground is applied with base fertilizer, no fertilizer is needed during the growth period. If the soil is too fertile, the branches and leaves are easy to grow and the flowering is reduced. Or in the growth period every 10 days apply 5 times water decomposed urine once, dry days irrigation 2 - 3 times, that is, can grow, blossom well. During the high temperature period from July to August, flowering plants are not easy to bear seeds. The seeds are easy to shed after maturity and should be harvested in the early morning.

4. Watering. Cosmos drought-resistant, after planting irrigation once permeable can be, and later according to the soil dry and wet watering, do not need watering.

Notes on cosmos

The fertilizer and water requirements are not strict, and the decomposed urine with 5 times water is applied once every 10 days during the growth period. High and medium-sized varieties need to set up pillars before flowering to prevent windstorm lodging. They grow rapidly and can be picked many times to increase branches. Red spider damage occurs easily when it is hot, and it is appropriate to prevent and control it as soon as possible.

Pest control of cosmos

1. Red spider: cosmos is easy to appear red spider when it is hot and dry. Whether you like it or not, cosmos has a high probability of giving birth to red spider. Even if only two trees are planted, there may be red spider. It should be discovered early and prevented early. Spray 40% dicofol emulsifiable concentrate 1000 to 1500 times at the initial stage.

2. Powdery mildew: The density should not be too large when planting, and good ventilation and light transmittance should be maintained. After the disease occurs, the diseased leaves and diseased plants should be cut off and destroyed in time to prevent reinfection. At the beginning of the disease, spray 15% triadimefon wettable powder 1500 times solution, or 10% Lewubing wettable powder 1200 to 1500 times solution, alternately use the two drugs, continuously spray 2 to 3 times.

The planting of cosmos is best in the early spring of each year for sowing, in the planting time to choose the right soil, cosmos is not resistant to water, so do a good job of drainage is inevitable. Pest control must be strengthened at the later stage of planting, only in this way can cosmos grow well.

How do you plant seeds of cosmos? How do you plant seeds of cosmos?

It takes a very long process for cosmos to change from seed to beautiful flower. How can cosmos seed bloom into a beautiful flower? Let's take a look at how the seeds of cosmos are planted.

How do you plant seeds?

1. Introduction to cosmos seeds

Cosmos is a perennial plant. Cosmos comes from Mexico and flowers only after constant cultivation. Cosmos blooms around June or August each year. Cosmos is beautiful in color and enchanting in appearance.

2. How to plant seeds of cosmos--collecting seeds

The seeds of Persian chrysanthemum are mainly propagated, and after the flowers of Persian chrysanthemum wither, they will begin to bear seeds. At this time, the seeds of cosmos are harvested. After the seeds of cosmos are sown in the soil, they begin to grow into cosmos seedlings. Those who grow cosmos by themselves can collect seeds and sow them themselves, but if they bloom in the hot season, they will not receive seeds.

3. How to sow seeds of cosmos

Do not plant seeds immediately after harvest, it is best to choose a sowing time. Usually in the north of our country, the temperature is lower. At this time, it is best to start planting from April to June, and the temperature is more suitable. The rest of the region can choose to sow in seasons other than winter.

4. How to plant cosmos seeds--Conservation

Persian seeds need to be carefully maintained after planting to ensure smooth germination and flowering. Cosmos is a short-day plant, so it can be short-day treated after emergence.