The Latest Technical Methods and Tutorial for Sweetening Strawberries
Strawberries have a bright, glossy appearance and a sweet taste, but some strawberries look good yet have little sweetness, which gives many growers a serious headache. So how can you increase the sweetness of strawberries? Follow along with the editor below to learn about strawberry sweetening techniques.
1. Temperature and Light Regulation
When cultivating in a greenhouse, keep the daytime temperature at 25-28 degrees and the morning temperature at 10-12 degrees, and it must not fall below 8 degrees. After entering the flowering stage, keep it at 23-25 degrees during the day and 8-10 degrees at night. During the fruit enlargement stage, keep it at 20-25 degrees during the day, and it must not fall below 5 degrees at night. Regulating the day-night temperature difference in this way allows the fruit to accumulate sugar and increases sweetness. In addition, when cultivating strawberries in a greenhouse, there must be no less than 10 hours of light per day. If there is insufficient light, electric lights or reflective film equipment can be installed to improve the lighting conditions.
2. Reasonable Fertilization
Fertilization is also one of the methods for increasing strawberry sweetness. When strawberries lack phosphorus, the plants grow poorly and the flowers and fruits are smaller, while when they lack potassium, the color is dull and the taste is poor. Therefore, when cultivating, appropriately increasing the application of phosphorus and potassium fertilizers can increase both yield and sweetness. In addition, increasing the application of organic fertilizer can also improve yield and sweetness. Organic fertilizer is rich in nitrogen, calcium, magnesium, sulfur and other trace elements essential to strawberries, which chemical fertilizers cannot match. However, when using organic fertilizer, it must be fully decomposed.
3. Water Regulation
Strawberries cannot grow and develop without water. During cultivation, if there is too much water, it can easily lead to excessive vegetative growth of stems and leaves, affecting yield. Moreover, when the fruit is enlarging, if it absorbs too much water, it will also dilute the sugar content inside, causing sweetness to decline. Therefore, water regulation is extremely important. During high-temperature periods, reduce the amount of watering and water frequently in small amounts, keeping soil moisture at around 60%, which can noticeably increase sweetness.
4. Chemical Regulation
During planting, in order to increase yield and quality, growers usually use various growth regulators to increase sweetness and yield. During the flowering and fruiting stage or the fruit enlargement stage, spraying Caiguo Zhuangdiling can noticeably improve pollen fertilization quality, strengthen the cyclic fruit-setting rate, promote fruit development, and increase sweetness.
The above is an introduction to strawberry sweetening techniques. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.