What are the breeding methods for sunflowers? How do you grow sunflowers?

Propagation method of sunflowers: sowing propagation.

1. Select the seed.

The propagation method of sunflower is generally sowing, first choose full sunflower seeds, plant outdoors can not consider the size of the variety, if you want to plant in an indoor pot, you need to choose a relatively short variety, a large area of planting can be in the yard or flower bed.

2. Reasonable sowing.

The best time for sowing is in April, the temperature is best around 20, bury the healthy and full sunflower seeds in the moist potting soil, as long as the temperature and humidity are enough, it will be able to germinate in about 3 days, and the sunflower seedlings can be transplanted after 5 days. If the seeds are sown in pots from the beginning, there is no need to transplant them.

3. Transplant appropriately.

After the leaf buds of the sunflower are fully opened, they can be transplanted to large pots or other planting sites. After transplanting, it is necessary to water enough water to fix the roots, and the water should be watered thoroughly, and then the seedlings should be placed indoors in a sunny place for maintenance.

4. Maintenance and growth.

Wait until the sunflower seedlings grow 3 to 4 pairs of true leaves.

, you can spray some potassium dihydrogen phosphate on the leaves every few days.

Easy, this can cut the roots and stems strongly, and promote the growth and development of the plant.

Sunflower care tips.

1. Watering appropriately.

The root system of sunflower is relatively developed, and it should be dry and wet when watering, and the arid environment is more conducive to the growth and development of sunflower roots. However, the growth and development of sunflowers cannot lack water, so it is best to be dry and wet. Be sure to keep plenty of water during the flowering season to ensure the quality of the flowers.

2. Sufficient light.

Sunflowers need plenty of sunlight to grow, and when there is enough light, the plants will grow robustly, and the color of the flowers will be bright and shiny. If it is a potted plant of sunflowers.

It can be placed completely in a sunny place, and when the light is strong and the temperature is high, be sure to replenish water in time.

3. Control the temperature.

Sunflowers are suitable for growing at 18 30 and around 10 18 at night, so it is necessary to maintain a suitable temperature difference between day and night, which is conducive to the growth of stems and leaves. As long as it is within the right temperature, the higher the temperature, the faster the sunflower will grow.

4. Reasonable fertilization.

Sunflower is fertilizer-loving, and thin fertilizer can be applied every 7 to 10 days during the growth period, and nitrogen fertilizer is mainly used in the seedling growth stage. Wait until the sunflower buds appear, and appropriately increase phosphorus and potassium fertilizer to promote flower buds.

of developmental growth.

At present, it is all seed propagation.

The planting time of sunflower is from March to April every year, when the temperature is suitable, the climate is stable, and the seeds can be promoted to germinate and grow as soon as possible after sowing, and spring is the growth period of sunflower, the growth rate is faster, in order to improve the germination rate of the plant, it can be sown after the rain.

2. Germination treatment.

In order to improve the germination rate of sunflower seeds, after selecting healthy seeds with full particles, suitable size, and no diseases and pests, the seeds are germinated, and the prepared seeds are soaked in warm water at 30 to 40 degrees until the seeds absorb enough water to split and germinate, and then take out the seeds and prepare for sowing.

3. Soil preparation and fertilization.

Before planting sunflowers, you need to choose a loose and breathable, well-drained, humus-rich sandy soil, plough the prepared soil and weed, and then apply enough base fertilizer to the soil to provide sufficient nutrients for plant growth.

4. Sow seeds into the soil.

Sow the sunflower seeds evenly into the soil, water them once after sowing to keep the soil moist but not waterlogged, and then put the plants in a sunny, ventilated and breathable environment to maintain, and the seeds can germinate after five to seven days.

Wow, plant a sunflower upstairs like this. What year can I eat melon seeds? If you want to plant a large area, I don't know, plant less, turn over the soil in the spring, get some fertilizer, natural.

Bury the melon seeds at a distance to sprout quickly, and you can also add some fertilizer to them. Water when dry. When the flowers bloom and the leaves dry out, they can be cut. Dried.

Step 1: Seed selectionThere are different varieties of sunflowers, and if you want to plant them in pots, you can use small ornamental sunflower seeds, and if you plant them in a large flower bed or yard, it is recommended to use the edible type.

Step 2: Sow seedsStep 3: TransplantWhen the sunflower seeds germinate and protrude from the surface of the soil and open their cotyledons, they can be transplanted into large pots.

After transplanting, it is necessary to water enough water to fix the roots, and it must be watered thoroughly. It is recommended to put it indoors in a sunny place, and if it is to be placed in the sun, it should be watered frequently.

Step 4: Maintenance

Sunflowers are planted in different ways, are you ornamental or potted?

The growth temperature of ornamental sunflowers is 21-27 during the day and 10-16 at night. The temperature difference between 8 and 10 was the most favorable for the growth of stems and leaves. If the temperature is low in early spring, the growth of plants will be slow, which will directly affect the flowering time.

If the temperature exceeds 30 during the growth period, the temperature difference is too small, the stems and leaves are easy to grow, and the flowering period is shortened. When cultivated in the open field, the root system is relatively developed, drought tolerant, and there is not much watering in spring, and supplementary watering is required only in early summer when the temperature rises and the water evaporation is large.

The potted ornamental sunflowers, the big pots are small, and the growing period should be watered in time, otherwise the leaves are easy to dehydrate and wither. But it should not be too wet, the humidity is too large, and the base leaves are easy to turn yellow. Ornamental sunflowers are light-loving flowers, and they need sufficient sunlight throughout their growth and development.

The stems and leaves are robust, the flowers are brightly colored, and the tongue-like flowers are shiny. If it grows in a rainy or semi-shady environment for a long time, the stem is not straight, the leaves are soft, drooping, yellow-green, and the flower disc is small and untidy. The soil is loose and fertile loam, and the potting soil is a mixture of culture soil, humus soil and coarse sand.

For specific introduction, you can go to the Internet to communicate with sunflower friends, in addition, you need to pay attention to the following two points for seed selection and fertilization:

1) Select excellent varieties and process them. Select excellent varieties with high yield, high quality, good quality, good commerciality, resistance to leaf spot, sclerotinia resistance, low hollowing rate, high germination rate and strong germination potential, and carry out seed treatment, so as to give full play to the role of "making the best use of the seed and making the best use of the land".

2) Apply plantar fertilizer to lay a solid foundation. Sunflower is a crop that needs more fertilizer, according to the survey, every 100 kg of fruit, need to absorb 6 kg of nitrogen, 26 kg of phosphorus, 86 kg of potassium from the soil, apply foot fertilizer before sowing, and do a combination of organic and inorganic, per hectare to apply 30 to 40 cubic meters of organic fertilizer (preferably ash manure), apply 150-200 kg of diammonium phosphate and 100-150 kg of urea. Applying plantar fertilizer is the foundation for the growth and development of sunflowers.

Answer: 1. Choose soil: you should choose slightly acidic soil with good drainage and ventilation; 2. Select seeds: select seeds that are uniform and full of grains; 3. Treat seeds:

Soak in 60 warm water for 2 hours, and after the seeds are white, you can start sowing; 4. Sowing method: choose to carry out in spring or summer, sow the germinated end of the seed into the soil upward, and then cover it with a thin layer of soil; 5. Maintenance: Regular application of potassium dihydrogen phosphate.

Dear, I hope you can be satisfied with my reply, and I look forward to your praise Thank you! Happy every day

Put it in a sunny place where there is sunlight. Observe every day, and if you find that the soil is dry, you should add some water appropriately, and you should not water more. Otherwise the seeds will rot. As long as you work hard, you can grow seedlings, I wish you success, you can try it · !

The cultivation of cut flower sunflowers, as well as the choice of varieties, you should pay attention to:

1.It is suitable for entering the river during the growth period.

2.The required humidity should not be too low, otherwise it will rot after flowering.

3.The germination rate of the seeds is required to be sufficient.

4.Disease resistance should be carried out at the seedling stage.