How to grow strawberries in greenhouse?

Strawberry belongs to Rosaceae, perennial herb. Strawberry ranks first in small berry production in the world. Strawberry is a cash crop with fast fruit, early maturity, easy reproduction, short cycle and high benefit. Below, the editor of Guizhou Agricultural Network will briefly introduce how to grow strawberries in greenhouse.

1. Select suitable varieties or mixed planting of different varieties: Fengxiang, Mingbao and other varieties with more flowering, large amount of pollen, large and neat fruit, good coloring, light sour taste and less abnormal fruit are selected under the condition of low temperature. Varieties such as Qiuxiang, Baojiao Zaosheng and all-Star have less pollen and more abnormal fruits. Chunxiang, Dana and other varieties should be planted as pollination plants to facilitate pollination and fertilization, reduce abnormal fruits and improve the rate of big fruits.

2. Select disease-free strong seedlings: disease-free strong seedlings have developed root system, strong disease resistance, large strawberries, high yield and good quality.

3. Adequate application of high-quality basic fertilizer: increasing the application of high-quality mature farm fertilizer can provide sufficient nutrients for strawberry growth, flower bud differentiation, flowering, fruit setting and fruit development, increase fruit number, and improve fruit sugar content and coloring. 2000 kg of rotten chicken manure is applied per mu, and ditch application is combined with spreading.

4. implement crop rotation to avoid repeated cropping: rotation can improve the disease resistance of strawberries and reduce the number of deformed fruits and diseases and insect pests. The open-ground rotation between the shed and the shed can be made full use of.

5. Increase the light: the lack of light from 2 weeks before flowering to the flowering stage of strawberry will affect pollination and fertilization and produce deformed fruit. Lack of light during the coloring period will lead to light taste and poor color of the fruit. Under the premise of ensuring the temperature in the shed, the covered grass should be uncovered as early as possible. A reflective screen is hung on the north side of the greenhouse, which uses reflected light to increase illumination. On rainy or snowy days, incandescent lamps can be used to make up the light.

6. Ridging cultivation and plastic film mulching: ridging cultivation can reduce fruit dripping contact with greenhouse film, enhance sunlight exposure to fruit, reduce the occurrence of gray mold and promote fruit coloring. Plastic film mulching can increase soil temperature, reduce air humidity, avoid direct contact with soil, and help to keep fruit surface clean.

7. Strictly control the temperature: the suitable greenhouse temperature is 22-25 ℃ at flowering day and 8-10 ℃ at night, and 20-24 ℃ at day and 6-10 ℃ at night during fruit expansion. Too high temperature in the greenhouse will shorten the fruit development period and make the fruit smaller.

8. Proper watering and topdressing: appropriate watering during flowering and fruiting period, drip irrigation should be adopted. Insufficient moisture during flowering will lead to poor pollination and fertilization, resulting in deformed fruit. The lack of water during the fruit expansion period will affect the fruit expansion. 0.3% potassium dihydrogen phosphate solution should be sprayed continuously for 3-4 times during flowering and fruiting period.

9. Auxiliary pollination: poor pollination and fertilization is the root cause of abnormal fruit, the use of bee-assisted pollination can effectively reduce the production of abnormal fruit. Generally, one case of bee pollination is put in each greenhouse during flowering.

10. Timely prevention and control of diseases and insect pests: strawberry spraying during flowering is easy to induce abnormal fruit. If diseases and insect pests occur during the flowering period, spray the beehive out of the greenhouse before spraying, and then move back to the greenhouse 1 week after spraying.