Regulating temperature and humidity
When the temperature drops to 5 °C at night, the shed should be buckled in the greenhouse. When the minimum temperature falls below 0 °C at night, a small ring shed should be placed on the strawberry ridge. Since the flowering results of strawberry cultivation in the greenhouse are continuous and cross-cutting, the temperature in the general greenhouse should be kept at 24 °C ~ 28 °C during the day, 6 °C ~ 8 °C at night, the temperature can not be higher than 30 °C, otherwise it is not conducive to strawberries. Flowering results.
The air humidity in the greenhouse should be kept below 75%. If the humidity is too large, you can open the door to the greenhouse at about 9:00 on a sunny day.
Cover film inhibits weeds
After finishing the weeding and loosening soil and the bacon and the seedlings, the black plastic film should be laid on the ridge plants. Laying method: The black mulch film is placed on the ridge plant, the mulch film is torn open a small hole, and then the blade is carefully pulled out, and the central blade of the seedling must be exposed.
Finishing plants
After greenhouse insulation, the growth of plants is accelerated, and a large number of tillers and stolons are to be germinated. These tillers and stolons should be removed in time to increase the area of ​​main stems and leaves, promote the timely germination of the top flower buds, and vigorously grow the top inflorescence, and the early results of flowering. Generally, one strawberry retains at most one or two more robust tillers, and timely removes old, fading, and diseased leaves.
Sparse bud
Generally this work can be carried out after flowering. Mainly leave the 1, 2, and 3 flowers, and remove the 4th and 5th flower buds and the frozen flowers and the severely deformed fruit. Generally, the top inflorescence of each strawberry leaves 6 to 7 fruits, and the amount of fruit remaining in each inflorescence depends on growth and harvesting. In short, the size of the fruit before and after the birth should not exceed 15 at the same time. Combine the buds and sparse flowers to remove the old leaves and the harvested peduncle at any time.
Topdressing management
Straw strawberry topdressing is generally applied 2 to 3 times before and after planting the living tree to cover the black mulch. The greenhouse of 180 square meters is poured with about 1 to 1.5 kilograms of urea in water of about 500 kilograms at a time. After the topdressing, most of the topdressing is based on the seedlings, and 20 kg of urea is applied at a rate of 0.5% per acre.
Prevent malformation
The occurrence of malformed fruit is generally caused by poor pollination. Therefore, it is necessary to strengthen the insulation and dehumidification of the greenhouse in winter, and avoid spraying the flowers in the inflorescences of the inflorescences 1 to 2 as much as possible, and raise bees in the shed to pollinate and reduce the formation of deformed fruit.
Pest Control
Strawberry pests and diseases in greenhouses are mainly based on agricultural control, supplemented by chemical control. Prevention of pests and diseases can be prevented by selecting disease-resistant varieties, cultivating detoxification and strong seedlings, planting high ridges, covering the ground, rationally rotating, cleaning the soil, avoiding drought and high humidity. If diseases are found, it is necessary to pay attention to the use of drugs before and after flowering, so as not to affect the pollination and increase the number of deformed fruits. High-efficiency, low-toxicity, low-residue pesticides should be selected, and the pesticide dosage and safety interval should be strictly controlled. If gray mold occurs, it can be sprayed with 25% carbendazim WP 300 times.
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