Latest Tutorial on Flower and Fruit Management Techniques for Sapphire Grapes
Sapphire grape is a very popular grape variety in recent years and is very well received in our country. The fruit of Sapphire grapes does not drop easily or rot. It has high storage and transport tolerance, and is relatively simple to grow. However, Sapphire grapes have high yields, and during the growing process, flower and fruit management must be done well to ensure their normal growth. So how should Sapphire flowers and fruits be managed? Below, the editor brings you the management methods. Let's take a look!
1. Water and Fertilizer Management
During the cultivation of Sapphire grapes, fertilizer must be applied at least twice a year, respectively after the soil thaws and after harvest, with compound fertilizer and farmyard manure as the main fertilizers. The main purpose of fertilization is to meet the nutritional needs of Sapphire grapes at various development stages, such as sprouting, branch and leaf growth, and flowering and fruiting. Promoting fruit enlargement, increasing yield, and the formation of plant organs all require large amounts of nutrients. When watering, the watering frequency and amount should be determined according to the planting conditions. For example, orchards without straw mulching need to be watered about 5 times a year, mainly to meet the needs of the grapes at various growth stages. After the fruit coloring stage, watering and fertilization should not be carried out, to prevent cold water from lowering the temperature and affecting the root absorption capacity, which can lead to flower and fruit drop.
2. Promoting Flower Formation and Bud Development
Many friends will find during the process of growing Sapphire grapes that there are adverse phenomena such as too few and too small flower clusters, which are caused by underdeveloped flower buds. During management, we should increase the amount of fertilizer and water to ensure that before the plant's flower clusters form, the length of its reserve branches exceeds 2 m. Then twist the branches downward. When the branches grow to about 1.6 m, appropriately spray foliar fertilizer to promote leaf growth, improve photosynthetic capacity, and increase nutrient accumulation. Also do a good job in pest and disease control to prevent the leaves from being damaged.
3. Protecting Flowers and Fruits
When fertilizing, pay attention to the nutrient ratio of the fertilizer to prevent excessive vigorous growth of branches during the jointing stage. Then, combined with an appropriate amount of trace elements, spray on the leaf surface after sprouting to prevent nutrient deficiency. For excessively vigorous fruiting mother branches, promptly pinch off the tips and remove the buds, concentrating nutrients on the fruit clusters. During the flowering and fruiting period, control the use of chemicals, do a good job in ventilation, and carry out pollination around 12 o'clock every day. Control the temperature well. The daytime temperature should be controlled at around 25 degrees every day, and the nighttime temperature should not be too high to prevent excessive vigorous growth. Water less in winter to prevent the plant from freezing damage due to too low temperatures, do a good job in pest and disease control, thin the fruit promptly 3 weeks after fruit set, spray fungicide, and bag the fruit.
4. Flower and Fruit Thinning
We should also focus on the amount of flowers and fruits on the plant. The amount of flowers and fruits must not exceed the plant's capacity to bear them. Each main vine must not have more than 5 fruiting main branches, and excess fruiting branches should be pruned off. Then the number of fruit clusters on each fruiting branch should also not exceed 1, and excess newly emerged inflorescences should be promptly removed. The fruit weight on each fruit cluster must not exceed 1 kg. During the full flowering stage, the flower clusters should be pinched at the tips, and then about 3 weeks after fruit set, remove overly densely growing fruits and small fruits.
The above is a brief introduction to Sapphire flower and fruit management techniques. Sapphire has relatively strong growth ability and is relatively simple to grow. However, doing a good job in management can effectively increase yield, enhance quality, avoid some unnecessary losses, and protect your own economic benefits from cultivation. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!