Winter strawberry cultivation techniques

First, choose a variety suitable for greenhouse cultivation. The strawberry varieties used for planting in winter or early spring greenhouses should have lighter dormancy, low temperature tolerance and normal flowering under low temperature conditions. Self-cultivation fruit setting ability, large fruit size, good fruit shape, high yield, good quality Variety. Such as: Japan's ghost anger Gan, Feng Xiang, Japan 1, female peak, the United States of the Red Peak and so on.
Second, the election, soil preparation, fertilization. The strawberry has the characteristics of hi light, hi fat, and scarcity. Therefore, the land to be planted should have a flat terrain, loose soil, good drainage, and irrigation conditions.
As the greenhouses cover the mulch when planting strawberries, it is inconvenient to grow fertilizer during the growing season. Therefore, before planting should be combined with deep-rooted application of base fertilizer, Mushi 5000 tons of high-quality soil miscellaneous fertilizer, plus an appropriate amount of ternary compound fertilizer, smashing and leveling for rake, generally 1 meter away, sorghum 20-30 cm high.
Third, colonization. Strong seedlings can be planted in mid-August. The criteria for strong seedlings are 3-5 cm in root length, more than 0.8 cm in roots, and 3-5 complete leaves. The root system is more complete. According to the above requirements, each row was planted with 2 rows, with a spacing of 20 cm and a spacing of 13 cm. Because the planting season coincides with the high temperature season, the key to ensuring planting survival is to have a good understanding of the depth and sufficient water content. It is best to reach deeper levels without embezzlement. Planting plants that are too deeply buried in the seedlings can cause rotten and dead seedlings; planting is too shallow, and the exposure of rhizomes will cause the seedlings to dry out due to water loss and affect the absorption of water and fertilizers by strawberries in the later period. The normal depth is the base of the seedlings and the upper soil. Face to face. Immediately after planting, the plants were irrigated with water and the soil was kept wet for 1-2 weeks.
Fourth, cover the film and buckle shed. Covering the film should be performed about 1 month after colonization. Completely remove diseased leaves, yellow leaves, and spray 500 times of thiophanate-methyl before covering. Longitudinal coverage along the plant, in the position of each strawberry with a knife or hand to open a mouth, the strawberry stems and stems from the opening of the leaves and stems, pay attention to try not to damage the leaves, the opening should be as small as possible. When the night temperature is lower than 15°C, the baiting starts (the time and management of the sheds for the peppers after the fall is planted).
Fifth, post-plant management. After planting watering in a timely manner, found that there is a lack of seedlings, to make up for seedlings in a timely manner. After survival, with watering Mushi 10 kg of urea 1 times, usually with the fight drugs can be added 0.3% urea and 0.5% of potassium dihydrogen phosphate. During fruit enlargement, it is necessary to water in time. Otherwise, it will make the fruit smaller and poorly colored. When greenhouses are cultivated, due to insect pollination, it is necessary to adopt bee dropping or auxiliary pollination to increase the fruit setting rate and reduce the deformed fruit. Artificial pollination is performed with a brush every day, and the bees pollinate one box per shed. It should be noted that the bees can't fight drugs in the first half of the month, and they move in 1 week before flowering. In addition, the light in the shed can greatly increase the yield and quality and reduce the malformation rate.
Six, pest control. Diseases mainly include gray mold and powdery mildew. Botrytis cinerea is mainly sprayed with 600 times faster than Suckering; powdery mildew is sprayed with Triadimefon or sterilized 600-700 times. Insect pests are mainly locusts and can be killed by pyrethroid pesticides.
Seven, harvest sales. From 35 to 45 days, the strawberry grows from flowering to harvesting. Winter sales can be harvested at the maturity of 8 and harvested at the beginning of the spring in order to facilitate transportation and sales. When picking, you should lightly pick and put it gently, and use a turnover box or basket with good supporting performance. Be careful not to stack it too thick so as not to crush the fruit. Due to the long fruiting period of the strawberries, it is necessary to harvest them batch by batch and try not to miss them. Otherwise, too mature will lose its commodity nature.

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