How do "fruit queen" strawberries sow and raise seedlings? How to plant and manage? How many jin per mu?

Strawberries are native to South America, widely cultivated in various parts of China and Europe. Strawberry has high nutritional value, contains a variety of nutrients, and has health care effect. Deeply loved by consumers. So, how to sow strawberries and raise seedlings? How to plant and manage? How many jin per mu?

How to sow strawberries and raise seedlings?

1. Seed collection: during the fruit harvest from May to June, the well-developed and fully ripe fruit was selected for seed collection, peeled off, put into water, washed, removed and dried. Or dry the peel directly, then crush it, and then separate the peel from the seed.

two。 Seed treatment: wash strawberry seeds in 60-70 ℃ warm water and keep stirring until the water temperature drops to about 25 ℃. Continue to soak for 2-3 hours, remove and rub with hands until the seed coat is clean and shiny. Then rinse with clean water and cover with several layers of wet gauze. Germinate under the condition of 25-30 ℃, soak the gauze with warm water three times a day (morning, noon and evening) to maintain the moist environment of the seeds, and sow seeds after 60-70% of the seeds are white.

3. Sowing method: before sowing strawberry seeds, irrigate the border with small water, then rake the border surface, and then sow the strawberry seeds when they seep under water. The seed of strawberry is small, so it is better to sow it. The appropriate sowing rate is 2.5-4.5 grams per square meter. immediately after sowing, spread the mulch evenly on the border surface with a thickness of 0.3-0.5 cm, shade with straw mats and scatter after finishing the seedlings.

4. Seedling preparation: strawberry nursery land selects fertile soil and applies sufficient base fertilizer, which is dried with mulch fertilizer, and then mashed and applied to the seedling field that has yet to be ploughed. The amount of fertilizer applied is 5-10 jin per square meter, and compound fertilizer should be added appropriately. After fertilizing, careful ploughing should be carried out, and the depth can be about 33 cm. After ploughing, rake fine rake flat, and according to 0.8-1 m wide, 8-10 m long ridge to make the border into a horizontal state, in order to facilitate drainage and irrigation and management.

5. Seedling management: strawberry seedling stage is not suitable for flood irrigation, sprinkler irrigation can be used to meet the water supply, small water flooding irrigation can be used after 6 true leaves; strawberry seedlings should often pull out weeds in time; strawberry seedlings grow 3-5 true leaves can be transplanted, thinning and thinning; strawberry seedlings can be fertilized for the first time when they grow to 6 true leaves, and urea is suitable for topdressing.

How to grow strawberries?

1. Intermediate ploughing and fertilization: ploughing loosens the soil, which is conducive to the decomposition of organic matter. Shallow ploughing should be done 3 times from November to December. Topdressing once at the early flowering stage and at the early fruit setting stage. Apply urea 10 kg per mu, phosphate fertilizer 20 kg, potassium chloride 10 kg, or ternary compound fertilizer 35 kg.

two。 Management in the early stage of flower bud differentiation: strawberry seedlings transplanted in early September should be covered with shading net in addition to replenishing water in time. The net is 1.2 meters above the ground, which is convenient for personnel to operate. It is necessary to remove withered leaves, old leaves, axillary buds and stolons in time, and keep 5-6 leaves. Flower bud differentiation needs lower temperature and short sunshine, which can be covered with grass curtains on the sunshade net. Through the operation process of uncovering and covering the grass, the conditions of short sunshine and lower temperature were artificially created to promote the differentiation of apical inflorescence and axillary inflorescence for more than a month.

3. Irrigation and drainage method: at the initial stage of flowering and berry growth, irrigate once respectively. It is appropriate to use furrow irrigation, so that the water irrigation to the ditch height of 2 prime 3 is better, let the water gradually seep into the border soil, and the remaining water in the ditch is discharged. If there is a drought, it should be irrigated once every 5-7 days. A section of metal pipe is put on the front end of the rubber tube for hole irrigation, which not only saves water, but also keeps the border soil loose. When it is rainy in autumn, it should be drained in time. Drainage ditches should be made early around the strawberry orchard so that the furrow water in the shed can be drained.

4. Cover with plastic film: from October to early November, it is the end of strawberry inflorescence differentiation, and the sunshade net can be removed. In Jiangzhun area, "the Beginning of Winter" is covered with plastic film behind, and the plastic film in front of "heavy snow" is covered with plastic film to keep the temperature in the shed at 28-30 ℃. In the "warm winter" year, the plastic film in the middle shed was added in the "the Winter Solstice" season. The "cold winter" year should be covered with large and medium shed plastic film at the same time. In short, during the season from "Lesser Cold" to "Greater Cold", the temperature in the shed should be kept above 25 ℃, or at least 23 ℃. Only by meeting the above temperature can strawberries grow normally.

5. Ventilation operation: the soil moisture for the growth of strawberry seedlings should be 70% and 80%. The humidity of the air in the shed should be 60%, 70%, and 70%. Therefore, when the temperature in the shed exceeds 30 ℃, it should be ventilated. The plastic film at both ends of the greenhouse and the middle greenhouse should be opened for ventilation from 10:00 to 3 pm from November to December. When the humidity in the shed exceeds 70%, it should also be ventilated to reduce the humidity of the air in the shed. Keeping bees in the flowering shed, nylon wire mesh can be made at both ends of the large and medium shed to facilitate smooth ventilation. Another function of greenhouse ventilation is to control strawberry powdery mildew.

How many jin of strawberries per mu?

Strawberry seedlings blossom, set fruit to berry coloring, soften, release unique fragrance, about 30 days. Strawberries should be harvested and listed in batches after they are ripe. The average yield of strawberries is 1500 kg per mu.

Time: 2019-03-20 Click: