Water and fertilizer management in strawberry flowering period: 2-4 kilograms of Harvey flowers per mu were drip-irrigated before strawberry flowering 15 days, to supplement the necessary phosphorus element in strawberry flowering period, and spray strawberry buds 1 time with calcium and boron extracted by Dole and Newton twice in a row within 7 days, to supplement the medium and trace elements needed in strawberry flowering period, which greatly improved the flowering rate and fruit setting rate of strawberry and increased the strawberry yield. 80% strawberry withered flowers were sprayed with Guoduole and Neocalcium Boron for 7 days 1 time, twice in a row, which increased the number of cells and laid the foundation for strawberry expansion. During the fruit expansion period, strawberry was sprayed with Yanduole and Harvey fruit to make it expand and sweeten rapidly. After that, Huaduole-Guoduole-Yangduole can be sprayed alternately, and root fertilizer-4 kg of Harvitt-Harvitt fruit can be applied per mu.
Temperature management of strawberry flowering period: pay attention to the temperature management of strawberry flowering period. After budding, it is 20-25 degrees in the daytime and 8- 10 degrees in the evening, and the maximum temperature in the daytime is not more than 28 degrees and not less than 15 degrees. Too high or too low temperature will affect the normal pollination of strawberry at flowering stage, and it should not be lower than 5 degrees at night to prevent frostbite of bud.
Humidity management of strawberry flowering period: strawberry flowering period should be controlled at 40%-50%, wet but not waterlogged, dry but not dry. When the humidity is high, the shed should be opened in time at noon to discharge the humidity, and the water should be watered in time when it is dry. The watering time should be 20-30 minutes before sunny morning 10, and the amount of water should generally not exceed 2 tons, so as to facilitate the recovery of ground temperature. If there is still water shortage, you can water it another day. It is forbidden.
Light management in strawberry flowering period: insufficient light in strawberry flowering period affects strawberry pollination and fertilization. Therefore, the greenhouse should use polyethylene drip-free film with good light transmittance, and the dust on the film should be cleaned frequently. Strawberry flowering needs 12- 15 hours of sunshine. In the case of insufficient light, you can use a fill light to extend the light for 2 hours every day. If there is a small arch shed in the greenhouse, a light bulb of about 45 watts can be installed in the small arch shed every 1 m, which can prolong the illumination and increase the temperature. Harvest strawberries 15 20 days in advance.
Pollination of strawberries at flowering stage: strawberries are planted in protected areas, because there are few insects, poor natural pollination and many deformed fruits, and artificial pollination or bee pollination is needed. Artificial pollination is to gently brush the peripheral stamens with a cotton swab or brush, dip them in pollen, and then brush them on the pistil. Generally, after flowering, the fruit setting rate is high after brushing for two or three times. Artificial pollination is used less because of the heavy workload. Generally, bumblebees are used for pollination. 7-8 days before strawberry blossoms, put the beehive in the greenhouse, so that the bumblebee can fully adapt to the environment and temperature in the greenhouse before flowering. Spraying fungicides and pesticides should be safe for bees, and the bees should be moved out of the shed and released three days later.
Control of pests and diseases in strawberry flowering period: The main diseases in strawberry flowering period are gray mold and powdery mildew. The main pests are thrips, aphids and red spiders. The prevention and control of gray mold is mainly to control the humidity at flowering stage. At the initial stage of the disease, it can be sprayed with anti-attack+eugenol+newly extracted calcium and boron, Huibik+Luheng No.8+Tianbao, Kaiser+eugenol+newly extracted calcium and boron. A shed with high humidity can be fumigated with procymidone fumigant. Powdery mildew can be sprayed with powder+Heng Lv No.8+Tianbao, Zhen Shi+eugenol+Tianbao, Kangfeng+Heng Lv No.8+Tianbao. Noji spray can control aphids and thrips, and acaricide 1+ 1 spray can control red spider. Aphids, thrips and red spiders can also be smoked with Fence fumigant. Spraying should avoid the noon pollination time, so as not to affect strawberry pollination. Only after the powder is smoked and released every other day can the bees be released.
Plant management in strawberry flowering period: remove old leaves, dead leaves, diseased leaves and stolons, leave 8- 12 functional leaves per plant and 1-2 robust lateral buds per plant, remove high secondary buds, remove 8- 10 fruits in the top inflorescence and 5-7 fruits in the lateral inflorescence, and remove redundant weak buds.
-(Amoy) loves to buy all kinds of houses.
(Personal opinion, for reference only! )