The Latest Methods for Flower and Fruit Preservation in Tomatoes in Summer
High temperature and high humidity in summer both affect the normal pollination and fertilization of tomatoes, leading to poor flowering and fruit set. If the plant grows leggy, less nutrition is supplied to the flowers and fruits, which can also result in poor fruiting. So how should flower and fruit preservation be carried out in summer? Let's find out together.
1. Supplement boron and calcium
The two elements calcium and boron play a relatively large role in tomato flowering and fruiting. Boron can be supplemented before flowering, that is, before each truss of flowers forms or opens, apply boron fertilizer once, which can both promote good flower bud differentiation and avoid the formation of deformed flowers. A concentration of 500-1000 times is suitable. After an interval of about 10 days, spray calcium fertilizer once after fruit set. It is best to choose chelated calcium or lignin calcium, diluted with water at 1000-2000 times for spraying, for a better effect.
2. Rational flower treatment
When each truss of flowers opens, 3-4 flowers will come along together afterward. 2-3 days after the first flower treatment of each truss, another 4-5 flowers will appear, and this is the key point for flower treatment. Flower treatment should be mastered before the flowers open, but note that the concentration of the flower treatment should decrease as the temperature rises, so as to avoid the flower treatment agent being too concentrated and forming deformed fruits.
3. Control the temperature during the flowering period
The temperature during the flowering period is relatively important. The daytime temperature should be noted at 28 degrees, and should not exceed 34 degrees, and the night temperature should not exceed 20 degrees. When the temperature is too high, it is recommended to use a shade net or cooling measures to lower the temperature, so as to avoid high-temperature scorching and effects on fruit set. At the highest temperature at noon, micro-sprinkler equipment can be used to spray water for cooling, which also relieves the humidity inside the greenhouse.
4. Spray to promote flowering
Spraying seaweed-based or amino acid-based foliar fertilizer during the tomato flowering and fruiting period can significantly improve flower quality, ensure fruit development, enhance the stress resistance of the fruit, and prevent pests and diseases. But pay attention to the concentration. Taking seaweed acid foliar fertilizer as an example, it should be diluted with water at 500-1000 times for spraying, sprayed continuously 2-3 times, with an interval of 7-10 days each time, to promote tomato flowering and fruiting.
5. Rational fruit thinning
After fruit set, select and keep fruits of uniform size, similar shape and free of pests and diseases according to needs, and promptly thin out the remaining fruits to save nutrients and concentrate them on the development of large fruits. For example, large-fruited tomatoes should keep about 3 per truss, while small and medium-fruited types can keep 4-5, and deformed fruits should be removed promptly.
The above is an introduction to the methods for flower and fruit preservation in tomatoes in summer. We hope it can help you. To learn more related knowledge, please follow us.