A little knowledge of sunflowers, what are the characteristics of sunflowers

Scientific name: Portulaca grandiflora Alias: Pine-leaved peony, purslane macroflora.

Family: Purslane, Purslane1. Sunflower seed planting method.

1. Planting

Sunflower seed planting method in Sichuan about 9 October sowing, before sowing the land, and then open a meter deep ditch, on the ditch according to the row spacing of 30 cm, 4 6 cm deep open horizontal ditch, sowing about 10 cm, do the bottom flat, soil pine. Seeds need to be mixed with human and animal manure water in the plant ash, so that the seed ash, 5 6 taels of seeds per mu, when sowing, first in the ditch into the human manure water, the seed ash evenly sprinkled in.

2. ManagementThe management method of seed propagation is to water the seedlings with light human and animal manure water when the seedlings are one centimeter high. When the seedling height is 3 4 cm, the seedling should be evenly mixed and the seedling should be replenished. Leave a seedling every 3 4 cm, and the seedlings should be moved with soil.

After homogenizing the seedlings, weeding is carried out once, and top dressing is carried out. Divide the propagation, after planting when the new seedlings are removed, after topdressing once, only need to pull out the grass and loosen the soil, to September after harvest and November each topdressing once for winter.

The characteristics of sunflower are: 1. Long flowering period: it is characterized by a relatively long flowering time. If it is provided with a suitable environment during the management period, it can bloom in all seasons. And there are many colors, common red, white, purple, pink, orange and so on.

2. Drought tolerance: It has strong adaptability and drought tolerance. During the maintenance period, it can be placed in a light place, let it bask in the sun all day, and the light will bloom better.

You don't need to water frequently, even in a dry environment, not watering for a day or two will not affect growth. If the soil is watered frequently, the soil is too moist and it is easy to cause poor growth.

3. Morphological characteristics: It is an annual herb, the plant height is usually between 10-30 cm, and the branches on it are easy to lodge. The leaves are alternate or scattered, and are finely cylindrical.

When the flowers bloom, they are mostly solitary, and sometimes there are 1-3 clusters at the top of the stem, and the diameter of the flowers is about 3-4 cm.

4. Flowering period: It usually starts to bloom in May every spring, and the flowering period is long, which can last until November. If it is located in the Lingnan area, the climate is suitable, and it can be opened all year round.

It is very light-loving and only blooms when it sees the sun. Therefore, the flowers are closed in the morning, evening or on rainy days. The more intense the light, the better the flowers will bloom, which is also the origin of the name, and is also called the noon flower.

1. Sunflower, also known as sunflower, is an annual herbaceous plant of the genus Sunflower in the Asteraceae family. Sunflower seeds are called sunflower seeds, often fried and eaten as snacks, delicious, can also be squeezed sunflower oil for consumption, oil residue can be used as feed, because its flowers often face the sun and get the name.

2. Sunflower, also known as pine-leaf peony, half-branch lotus, is a perennial flower of the purslane family. Like warm, sunny and dry ring shirt number of the environment, see the sun blooming, morning, evening, cloudy days closed, so there is the name of the sun flower, noon flower.

3. Gerbera is a perennial herbaceous plant of the Asteraceae family, also known as sunflower, orangutan chrysanthemum, sunflower, etc. Rich in flower color, labor-saving management, can be perennial in or bright and warm areas, is an important material in modern cut flowers, for flower arrangement and making flower baskets, can also be used as potted ornamentation.

Sunflower, also known as half-branched lotus, golden silk rhododendron, belongs to herbaceous plants, the flowering period is in June and September every year, and the flower color is red, yellow and other colors. Sunflower is native to South America, Brazil, Argentina, Uruguay and other places, and is cultivated in various parts of China. When cultivating sunflowers, garden soil, yellow sandy soil, and humus soil can be mixed into a substrate for cultivation, and phosphorus and potassium fertilizers need to be applied every 1 month during flowering.

The introduction of the sunflower.

Sunflower is also called half-branched lotus, golden silk rhododendron, purslane, dragon's beard peony, because the leaves of the sunflower are needle-shaped, the flowers are similar to peonies, also known as pine leaf peony, belongs to herbaceous plants. The flowering period is from June to September every year, and the flower color is mostly red, yellow-purple and yellow-white.

Native to South America, Brazil, Argentina, Uruguay and other places, the sunflower is now cultivated all over China, and its wild plants are mainly distributed on hillsides and fields. It is suitable for growing in sunny and warm climates. When it blooms, it can present a colorful sea of flowers, which has a strong ornamental nature.

Sunflower is suitable for growing in loose and fertile, draining and permeable soil, when mixing soil, can be mixed with garden soil, yellow sandy soil, humus soil to make a cultivation substrate, and every 1 2 years to change the pot, to avoid the soil is compacted and impermeable.

The flowering period of sunflower is longer, and the demand for nutrients is greater during the growth period, so it is necessary to apply phosphorus and potassium fertilizer and urea fertilizer every 1 month during the flowering period of sunflower to make the flower color more vivid. In order to prolong the flowering period, the flowers are also sprayed with a diluted solution of potassium dihydrogen phosphate.