When do strawberries grow?

Strawberries are planted in spring and autumn. Strawberries planted in greenhouse can ripen all year round by adjusting environmental conditions and changing ripening

Strawberries are planted in spring and autumn. Strawberries planted in greenhouse can ripen all year round by adjusting environmental conditions and changing ripening time. When planting strawberries, the seeds should be soaked first to improve the germination rate. Sow as evenly as possible, not too close. After sowing, cover the seeds with soil and spray appropriate amount of water to moisten them, and pay attention to temperature control, so that the seeds will germinate soon.

1. When do you plant strawberries?

1. Strawberries are planted in spring and autumn respectively. Strawberries planted in spring generally mature in June-August, and strawberries planted in autumn generally mature in June-March of the following year. Strawberries planted in greenhouse can be ripened all year round by adjusting environmental conditions and changing ripening time. Strawberries should be planted in fertile, loose, neutral or slightly acidic loam. Too sticky soil is not suitable for cultivation. Strawberries can also be planted on sandy soil with more fertilizer and regular irrigation. When planting strawberries, the seeds should be soaked first to improve the germination rate. Sowing should not be too dense and should be as uniform as possible. After sowing, cover the seeds with soil, spray appropriate amount of water to moisten them, and pay attention to temperature control, so that the seeds can germinate soon. After strawberry is planted, the fruit will mature in about 4 months.

2. Strawberry is a perennial herb, native to South America and widely planted in China and Europe. Strawberries like warm and cool climate. The growth temperature of strawberry roots is 5-30℃, the optimum temperature is 15-22℃, the optimum temperature for stem and leaf growth is 20-30℃, and the buds are frozen at-15- 10℃. The temperature of flower bud differentiation must be kept at 5-65438 05℃, and the flowering and fruiting period is 4. Strawberry is a light-loving plant, but it has strong shade tolerance. Weak light is not conducive to strawberry growth, with medium light, large fruit, light color, low sugar content, long harvest period, short and strong plants, small fruit, dark color and good quality under light intensity.

Second, the cultivation techniques of strawberries

1, land selection and land preparation

Strawberry orchard should be located in a place with slightly higher terrain, sufficient sunshine, convenient irrigation and drainage, flat ground, fertile and loose soil, and the previous crops are beans or onions and garlic vegetables. Weeds and underground pests should be eliminated in orchards first, and 50% phoxim EC 1000 times solution (5-6 cm in wet soil) can be sprayed to control rodents and midges. After 1 week, 5000g of high-quality decomposed farm manure, 50g of potassium chloride and 0/00g of calcium superphosphate/kloc-0 were applied to the mu base. Combined with fine soil preparation, the garden was deeply turned over, so that the border surface was 50 cm wide, the height was 20 cm, and the border ditch was 30 cm wide.

2. Transplantation technology

In order to win the strawberry market at the end of 1 early February, the strawberry seedlings in nursery should be transplanted to the border of greenhouse in early September, with the row spacing of 27 cm, two rows of border, and the hole spacing of 20 cm, and planting 12000 plants per mu. When planting, the inflorescences of plants in the same row face in the same direction, so that the seedling center is exposed from the border, the root system is spread out and buried in the loose soil layer, and the planting water is poured in time, and the exposed root system is buried in the soil layer.

3. Planting management

(1) intertillage fertilization: intertillage is beneficial to the decomposition of organic matter. 1 ~ 12, shallow intertillage for 3 times, topdressing 1 time in early flowering and early fruit period, 20 kg of phosphate fertilizer, 0 kg of urea 10 kg of potassium chloride 10 kg per mu.

(2) Pre-management of flower bud differentiation: Strawberry seedlings transplanted in early September should be covered with sunshade net in addition to timely water supplement. Old leaves, dead leaves, axillary buds and stolons should be removed in time, and 5-6 leaves should be left, and the net should be 1.2 meters away from the ground, which is convenient for personnel to operate.

(3) Irrigation and drainage method: At the initial stage of flowering and berry growth, irrigation was carried out for 65 times and 438+0 times respectively, and furrow irrigation was used to make the water fill up to 2/3 of the height of the border, so that the water gradually infiltrated into the border soil and discharged the remaining water in the border.

(4) Plastic film mulching: from June 65438+ 10 to early June 165438+ 10, which is the final stage of strawberry inflorescence differentiation, the sunshade net can be removed. Heavy snow? Cover the front with plastic film. Beginning of winter? Cover with plastic film to keep the temperature in the shed at 28-30℃.

(5) Ventilation operation: The soil humidity for strawberry seedlings should be 70%-80%, and the air humidity should be 60%-70%. Ventilation should be provided when the temperature in the shed exceeds 30℃ and when the humidity in the shed exceeds 70%. Bees can be kept in the shed during flowering, and nylon wire nets can be made at both ends and in the middle shed to facilitate ventilation.

(6) harvesting: strawberry seedlings bloom and set fruit until berries are colored, softened and release special fragrance for about 30 days. When strawberries are ripe, they should be harvested in batches and put on the market.