How long does it take for sunflowers to grow and mature

The growth period of sunflower refers to the number of days from seedling emergence to seed maturity, which is generally more than 85-120 days. The length of the growth period varies depending on the variety, sowing date and cultivation conditions. The whole growth period of sunflower is divided into four growth periods: seedling stage, budding stage, flowering stage and maturity stage.

Sunflower 1 Seedling stage From the emergence of seedlings to the emergence of buds, it is called the seedling stage. Generally, it takes 35-50 days, and 28-35 days for summer sowing. This period is the stage of leaf and flower primordium formation and floret differentiation.

At this stage, the growth of the aboveground part is stunted, and the root system of the underground part grows rapidly, and a strong root system is formed soon, which is the stage with the strongest drought resistance of sunflower. 2 Budding stage A stellate body with a diameter of 1 cm appears on the top of the sunflower, commonly known as the bud. It generally takes about 20 days from budding to flowering, which is the period of vegetative growth and reproductive growth, and it is also the most vigorous stage in life.

During this period, sunflowers need the most fertilizer and water, accounting for about 40 to 50 of the total fertilizer demand. If the demand for water and fertilizer cannot be met in time during this period, the yield will be seriously affected. 3 Flowering period There are 75 plants in the field with tongue-shaped flowers open, that is, the flowering period is entered.

It usually takes 6-9 days for a flower disc to complete the opening of the tubular flower from the tongue flower to the tubular flower. From the second day to the fifth day is the peak flowering period of this inflorescence. The number of flowers blooming in these 4 days accounts for about 75 of the number of flowers.

The flowers mostly bloom at 4-6 o'clock in the morning, and are pollinated and fertilized the next morning. Unfertilized branches can remain for 7-10 days without withering. The self-pollination and seed setting rate of sunflower was very low, only about 3. Cross-pollination has a high seed setting rate.

However, if the temperature is high, the rain is abundant, the humidity is high, the light is insufficient, the soil is dry, etc., the seed setting rate will be greatly reduced; Therefore, adjusting the sowing date, timely fertilization, watering, pest and disease control, and taking measures such as bee release or artificial assisted pollination can improve the seed setting rate. 4 Maturity period From flowering to maturity, it is 25-55 days for spring sowing and 25-40 days for summer sowing. There are differences between different breeds.

About 15 days after flowering and pollinating shield is the stage of seed formation. The weather should be clear, the temperature difference between the day and liquid should be large, and the soil moisture should be suitable.

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Sunflowers ripen in July-September every year. In general, sunflowers are harvested between July and August each year, and unripe can be dried for ripening. In addition, it grows relatively fast and blooms 50-80 days after planting.

Planting timeThe timing of sunflower planting depends on the climatic conditions of each region. In Northeast China, planting is generally carried out in April every year, and in North China, it can be planted in March. In the south, the time is free, and it can be planted in March, but also in June-July.

Sunflowers generally mature in July and August every year, but the specific time is mainly determined by the time of planting, generally about 80-120 days after planting can mature, if you want to make it mature relatively quickly, you need to keep it in daily maintenance, let it have enough sunlight.

How long does it take for sunflowers to ripen.

Sunflowers generally ripen around 7-8 months each year, but the specific time is mainly determined by the time of planting, generally about 80-120 days after planting can mature, if you want to make it mature relatively quickly, you need to maintain it in daily maintenance, so that it has enough sunlight.

Sunflowers blossom and bear fruit.

If the sunflower is planted in March and April in the spring, as long as it is carefully maintained, it will gradually bloom in 50-80 days after sowing, and the fruit will ripen in July and August, and its fruit yield is extremely high, and it can also be eaten, or it can be sown and harvested in the next year.

Sunflower origin.

Sunflower is more suitable for planting in warm areas, especially in areas with sufficient sunlight, its demand for light during the growth process is extremely high, and the temperature should be kept between 21-24 degrees, so it is more common in southern regions, such as Anhui, Jiangsu, Zhejiang, Jiangxi and other places.

The ornamental varieties of sunflowers mainly include laughter, sun spots, teddy bear brilliance, etc., among which laughter belongs to the early flowering species, the height of the finger dust plant is about 30-35 cm, the plant height of the sun spot is 60 cm, the teddy bear belongs to the super double petal, the plant height can reach 40-80 cm, and there are more flowers, and the brilliance is the main variety in Taiwan.

Sunflowers generally ripen and bear fruit in May-June and October-November, and generally take 25 to 55 days for spring sowing and about 40 days for summer sowing. Sunflower sunflower seeds contain protein, fat, vitamins, iron, zinc and other essential nutrients for the human body, it has a certain lipid-lowering effect, the flower disc can clear heat and dissolve phlegm, stem medullary diuretic and anti-inflammatory, leaves and petals can be used as stomach invigorators. Blind.

Sunflower ripening time.

Sunflowers can be planted in all seasons, so there is a lot of fruiting time, generally in May and June, and in October and November if planted in summer.

Sunflower origin.

Sunflowers are native to North America, and are cultivated in all countries of the world before spring, and Ukraine, China, Turkey and other countries are the main producers of sunflowers in the world market. There are many varieties of sunflowers, including edible types, potted seeds, and cut flower species.

Sunflower efficacy and function.

Sunflower sunflower seeds contain protein, fat, vitamins, iron, zinc and other essential nutrients for the human body, it has a certain lipid-lowering effect, the flower disc can clear heat and dissolve phlegm, stem medullary diuretic and anti-inflammatory, leaves and petals can be used as stomach invigorators.

Sunflower fruit ripening needs to be decided according to the sowing time, sunflower can be sown in spring and autumn, but most of them are sown in spring 3 or 4 months, its growth rate is very fast, generally sunflower after sowing, wait for 50 80 days or so to bloom, to July 9 The fruit will also be ripe, and the ripe fruit can be eaten or sown.

The ripe fruits of sunflowers can be made into melon seeds to eat, many people like to eat them in life, but many people don't know when sunflowers are ripe, generally the ripening time of sunflowers, need to be decided according to the sowing time, most sunflowers ripen in summer 7 September.

Sunflowers grow fast, can be sown in spring and autumn, but it is best to start sowing in spring 3 April, this time period is the ** period of sunflowers, the survival rate of sowing is the highest, after sowing in the sun carefully cultivated, wait for 50 80 days or so will flower, 7 September fruit will also mature.

When the sunflower is ripe, we can process it and make it into melon seeds to eat, or we can use the ripe fruit to squeeze oil to eat, which can make the food taste delicious and play a role in lowering fat, and can also be sown with mature seeds.

1. Soil selection

Sunflower does not have high requirements for soil, it needs to grow in loose soil, high fertility soil, we can choose garden soil, humus soil, coarse sand mixed together, which can add an appropriate amount of organic fertilizer, increase the fertility of the soil, you can also buy nutrient soil on the flower shop to plant sunflowers.

2. Soak and induce germination

Generally, sunflower seeds do not need to be treated, but if you want the seeds to take root and germinate faster, you can put the seeds in clean water and soak them for about 2 or 3 hours.

3. Sow seeds and germinate

When sowing sunflowers, first of all, you need to loosen the soil, spray some water appropriately, sprinkle the treated seeds on 2 4 grains of soil, cover a layer of soil, put them in a cool place to breed, control the ambient temperature at about 21 24, wait for a week, and the seeds can take root and germinate.

4. Post-sowing management

After the seeds of sunflower are sown, do not water it immediately, you need to wait for 4 or 5 days after rooting and germination, apply potassium sulfate compound fertilizer every half month, and loosen the soil after each fertilization to prevent soil compaction so that the roots can not grow normally, and put it in a sunny place to breed.

Introduction to sunflower growth.

The suitable temperature for sunflower growth is 15-30 degrees, but it still grows rapidly in summer, with a growth period of 2-3 months, a temperature of more than 28 degrees during the growth period, and a flowering period of more than two weeks. Sunflowers mainly grow in Xinjiang, Ningxia, Inner Mongolia, Gansu, Northeast China and other places.

Sunflower growth cycle.

Sunflowers are light-loving flowers that prefer warm, slightly dry, sunny environments. It needs sufficient sunlight throughout its growth and development, and the growth period is generally more than 85-120 days.

Sunflower growth rate.

The whole growth period of sunflower is divided into seedling stage, budding stage, flowering stage and maturity stage. It generally takes 35-50 days from the emergence of seedlings to the emergence of buds, from the emergence of buds to flowering, it generally takes about 20 days, and from flowering to maturity, it takes 25-55 days.

Sunflower growth cycle management.

The yield of sunflowers per mu is about 450 550 catties. It grows fairly quickly and usually blooms about two months after planting. There are single-petaled flowers, multi-petaled flowers, single-petaled flowers, double-petaled flowers.

Temperature management: During the growth of sunflowers, a temperature difference of 8-10 is the most conducive to the growth of stems and leaves, such as low temperatures in early spring and slow plant growth. If the temperature exceeds 30 during the growing season, the leaves of the plant are prone to white growth and the flowering period is shortened.

Fertilizer management collapses, such as: sunflowers can use urea, potassium chloride, well-rotted human feces, plant ash, etc. After planting, dig several holes 2 3 cm deep around the plant and apply fertilizer.