Six tips for planting strawberries in January.

Author: strawberry planting Alliance

After New Year's Day Festival, January 2018 officially arrived. Recently, many strawberry growers have been asking how best to manage strawberries this month. The following editor has sorted out the key points of strawberry cultivation and management in January, which can be referred to if necessary.

01 fertilization

Calcium fertilizer and potassium fertilizer had antagonistic effect to a certain extent, so did potassium fertilizer and phosphate fertilizer. In the early stage, water-soluble balanced fertilizer + calcium fertilizer was applied in the early stage, calcium mainly increased the fruit firmness, prevented the stiff fruit, and in the later stage, the application of high potassium fertilizer promoted the expansion and color conversion of the fruit. Foliar also needs regular application of potassium dihydrogen phosphate, boron, magnesium fertilizer and other balanced nutrition to promote large and good fruit growth.

02 pest control

Red spiders and thrips will also appear in some areas, can be controlled by matrine spray (biological agents), can also be used before flowering, such as biphenylhydrazine ester, and use biological pesticides as far as possible during the fruit period.

03 control temperature and humidity

During flowering, it is appropriate to keep 20: 25 ℃ during the day, 8: 10 ℃ at night, and the ground at 18: 20 ℃. If the temperature is too high, it should be ventilated in time, so as not to be harmful to the development of floral organs. During flowering, the stamen anthers turn brown and the pistil stigma blackens, which seriously affects the yield and fruit quality of strawberries. During the period of fruit expansion, the temperature can be maintained at 20: 22 ℃ at night and 5: 10 ℃ at night, which can be adjusted according to the needs of the market. High temperature, early ripening, fast coloring, but small fruit, lower temperature and delayed ripening, but the fruit is relatively larger and the quality is better.

In winter, the greenhouse can effectively increase the temperature of the greenhouse by covering grass, loose straw, heat preservation quilt, cold protection and other materials at night, and it can also be heated by charcoal burning, stove, placing heaters and other measures.

04 thinning flowers and fruits

The removal of secondary flowers and deformed small fruits can significantly reduce the rate of abnormal fruit, concentrate nutrients and improve the weight or quality of single fruit.

05 reduce the use of drugs

Agricultural measures such as virus-free seedlings and plastic film mulching are adopted to avoid or reduce the use of drugs as far as possible. When the disease and insect pests are serious, the medicine should be used before or after flowering, spraying is strictly prohibited during flowering, and the beehive should be removed and treated with smoke if necessary.

06 measures to increase production

Cloudy days to enhance the light intensity in the greenhouse, the temperature difference between day and night is mostly conducive to the accumulation of fruit sugar, so that strawberries become big and sweet, but pay attention to control the temperature in the suitable growth range!