Grasp the quality of transplantation
Seven points should be grasped when transplanting: first, directional transplanting is appropriate, that is, the back of the neck of the seedling faces the ditch, which is conducive to extracting inflorescences in the future; Second, double-row zigzag planting is beneficial to ventilation and light transmission; The third is to grasp the planting depth, so that shallow roots are not exposed and deep hearts are not buried, which is beneficial to tillering; The fourth is transplanting with soil, which is convenient for survival; Fifth, planting in sunny afternoon and planting all day on cloudy day; Sixth, it is necessary to strengthen the management of water and fertilizer, and immediately water the roots after planting; Seventh, it is necessary to check and replant seedlings in time.
Control the temperature and humidity
The optimum temperature for strawberry growth is 20 ~ 28℃, and high temperature above 35℃ and low temperature below 5℃ are not conducive to its growth. From late February of 12 to late October of the following year 10, the temperature in the shed should be kept below 25 ~ 28℃ during the day and above 5℃ at night due to the low temperature. If the temperature is below 5℃, you can cover the shed with plastic film. During the flowering and fruiting period, the temperature in the shed is maintained at 20 ~ 25℃ during the day, generally not exceeding 30℃, and 8 ~12℃ at night; The relative humidity in the shed should be controlled below 70% before flowering and below 60% from flowering to fruit expansion. Too much or too little will affect the root activity and the normal growth and development of fruits.
Pay attention to scientific fertilization
Strawberries in greenhouse have a long fruiting period, many batches of fruits and a large amount of fertilizer. On the basis of selecting fields with fertile and loose soil, deep soil layer and good irrigation and drainage conditions, it is necessary to apply base fertilizer again, apply thin topdressing frequently and spray foliar fertilizer in time. In fertilization, it is necessary to master the reasonable collocation of nitrogen, phosphorus and potassium, and supplement trace fertilizers appropriately. Generally, 40 tons of decomposed manure, 50 kilograms of ternary compound fertilizer, calcium magnesium phosphate fertilizer 100 kilograms are applied to each mu of base together with ploughed land.
Insist on reasonable watering
Strawberry has shallow root distribution, large leaf area and large evaporation. It is a plant that likes water and is afraid of waterlogging. After heat preservation, soil moisture evaporation is accelerated. Although covered with plastic film and shed film, the soil is still prone to water shortage. In production practice, we can judge whether it is necessary to water by observing the moisture on the leaves in the morning. If there are water drops on the edge of the leaf surface, there will be water spit out, which can be considered as sufficient water. On the contrary, if plants don't spit water, it means that they are short of water and need to be watered in time. The principle of watering is wet without waterlogging and dry without drought.