[how to grow sunflowers] planting methods of sunflowers

The leaves of sunflowers are light green. After a few days, the leaves become dark green, black and dazzling green when they grow up. Seen from a distance, it looks like a thorn is evenly inserted into the tender stem, but it is not sharp or stinging, but smooth and tender. The stems of sunflowers are tender and juicy, and their bright red stems extend from the flowerpot to the outside of the flowerpot; of course, the stems of sunflowers are of different lengths and thicknesses. There are many kinds of flowers: some flowers are all open, like a smiling face; some petals stretch out on one side, but the other half refuses to bloom, like a shy girl; some are flowers; they loosen the soil and fertilize the sunflowers every day to make the flowers bloom more brightly. So how do you grow sunflowers?

How to grow sunflowers

Sowing seeds

Sunflower seeds are very small, about 8400 per gram, can be sown in spring, summer and autumn, often sowing in seedling plates, after sowing can be slightly covered with a little soil, or not covered with soil. The germination temperature is 21: 24 ℃, about 7: 10 days, the seedlings are extremely weak, so if the temperature is kept high, the seedlings grow very fast and can form sturdy, fleshy branches and leaves. At this time, the seedlings can be directly on the basin, using a basin of about 10 meters in diameter, planting 2-5 plants in each pot, with a high survival rate and rapid growth.

Barge in

Sunflowers are very easy to cut and cut into cuttings in summer, wilting stems can also be used, buds appear immediately after planting, transplanting plants do not need to carry soil, and do not need to be watered frequently during the growing period.

For the winter management of sunflowers, sunflowers can be moved indoors to reach the sun in winter, so that the potted soil can survive the winter safely. After the Qingming Festival the next year, the flowerpot can be placed outside the window. In case of a cold spell, it is necessary to go into the window for maintenance.

How to raise sunflowers although there is a strong vitality, but in the breeding process should also pay attention to some methods.

Soil: sunflowers have few requirements for soil and can grow on almost any land. But the most suitable and cheapest soil for sunflowers is sandy soil with good drainage. It can be made by mixing mature soil, yellow sand and rice chaff ash at the proportion of 3:5:2 and adding calcium bell acid powder.

Light: light is the most basic condition for the growth of sunflowers. No matter how good other environmental conditions are, they will never blossom without light. Therefore, it is necessary to maintain sufficient light during the growing period of sunflowers.

Diseases and insect pests: sunflowers rarely get diseases and insect pests, but there are often aphids, almond bees, apricot ball shell insects harm, the prevention of these pests is also relatively simple. The aphids can be killed by spraying imidacloprid 4000 × 5000 times before germination and adding 2000 × 3000 times of cypermethrin after germination.

Fertilization: sunflower fertilization does not need to be too frequent, generally apply fertilizer every half a month, fertilizer can use 1/1000 of potassium dihydrogen phosphate.

Daily maintenance:

Sunflowers are best preserved in a sunny environment. If the light is weak, there will be overgrowth, few flowers or even no flowering. Sunflowers are more resistant to barren, so the general basin soil can adapt. If there are conditions to use sandy soil with good drainage, usually maintain a certain humidity of the basin soil, apply 1/1000 potassium dihydrogen phosphate (or other flowering fertilizer) once a month. It will be able to achieve the effect of large and colorful flowers and continuous blooming.