How to Manage Grape Blossom Period
Share with everyone the experience of managing grape blossom period and understanding the green plant maintenance skills related to grape blossom management. Next, the editor will introduce.
Grapes need to be fertilized during the flowering period, and boracic acid solution should be sprayed before blooming. Controlling the day and night temperatures can promote blooming, with 28°C during the day and 16-18°C at night. Keeping the air humidity at 50% is sufficient. thin out the inflorescences according to the growth state of the branches, removing unnecessary inflorescences to save nutrients. Let's understand the details together.
1. Appropriate Top Dressing
Before blooming, spray a 0.2%-0.3% borax solution or boracic acid solution on the leaves, which can promote the elongation of the pollen tube and increase the fruit setting rate. Supplementing with high-phosphorus fertilizer can also promote blooming. Pinching off the growing tips and pruning the branches based on the tree's growth can also reduce nutrient consumption.
2. Controlling Temperature
Controlling temperature can improve the germination rate of pollen. Keep the daytime temperature at 28°C and the nighttime temperature at 16-18°C. Relatively warm conditions are favorable for blooming.
3. Controlling Humidity
No watering is allowed during the flowering period, controlling the environmental humidity at 50% is sufficient. Watering once before flowering is enough to maintain soil moisture. Watering during the flowering period will increase soil moisture and lower soil temperature, which is not conducive to nutrient absorption. Keep the garden well-ventilated, ensuring proper humidity while avoiding dampness and performing appropriate ventilation.
4. Thinning Inflorescences
About 10 days before blooming, you can start thinning inflorescences, pruning based on the growth state of inflorescences on the branches. Each fruiting branch should initially retain at least 2 inflorescences, with weaker ones cut off. Weak fruiting branches can be left without inflorescences, and medium-strong branches should keep 1 inflorescence. While pruning inflorescences, deal with damaged branches and leaves as well to improve the light transmission of the grape trellis and increase ventilation.
5. Disease and Pest Control
For pests like thrips, scale insects, green vegetable bugs, and leafhoppers, use abamectin 5-7 days before flowering. For downy mildew, black spot disease, and gray mold, spray pyridaben plus carbendazim. Be cautious with chemicals from fruit setting to bagging to avoid leaving traces on the fruit surface.
The introduction above on how to manage the grape blossom period and understand the techniques for grape blossom management aims to bring some floral knowledge to green plant enthusiasts.