1、 How to pollinate

There are many varieties of grapes, but most of them are pollinated by wind or bees without manual help. However, some varieties do not help pollination, and the fruit setting rate is low. Be careful to shake the female and male buds when it blooms, so that the pollen will spread in the air and help pollination. Or wear gloves and touch the male buds, and the pollen will stick to the gloves and then touch the female buds, which may promote successful pollination and improve the fruit setting rate

2、 How to manage

1. Humidity: it should stop watering after flowering and maintain a good humidity environment. The humidity of 50% is the most appropriate. If it is watered again at this time, the soil temperature will be reduced, which will affect absorption and fruit setting

2. Temperature: it likes warm environment. The temperature at flowering is most suitable between 25-28 degrees, and it should also be controlled between 16-18 degrees at night. If it is cultivated in a greenhouse, pay attention to more ventilation during the day. Pay attention to temperature control in the open air at night. Lower than 15 degrees will affect flowering

3. Nutrients: appropriate amount of fertilizer should be applied before flowering, and high phosphorus fertilizer can be selected. Sufficient nutrients can promote flowering. Boron fertilizer should also be sprayed, which is conducive to fruit setting in the later stage. If there is a lack of nutrients, the flowering period will be shortened and the fruit setting rate will decrease

4. Light: during the flowering period, you should be exposed to the sun. You should put it in a place with good light every day to ensure that the duration is between 7-9 hours, which can better produce photosynthesis and facilitate flower bud differentiation