1、 Before germination

Watering is an important period of time before grape germination. Watering this time can promote germination and meet the needs of sprouting and branching. If it is not watered in time after excavation, it may be affected by dry wind, resulting in poor germination and even dry branches

2、 Before and after flowering

In the 10 days before flowering and the 10 days after the flower falls, the two periods need to be watered twice. Before flowering, new shoots and inflorescences grow rapidly, with strong transpiration and more water demand. After falling flowers, the new shoots have gradually thickened and grown, the leaves can also increase rapidly, and the root absorption is relatively strong, which is a key period of water and fertilizer demand

3、 When berries are colored

The period when the growing berries begin to color is the peak period of growth. At this time, they grow rapidly and the inflorescence develops rapidly. Sufficient fertilizer and water supply is required, otherwise the yield and quality will be affected

4、 Berry maturity

In the mature period of berries, if the water in the soil is appropriate, the fruit grains can grow and develop well, the yield can be guaranteed, and the sugar content will be high. If water is difficult to supply, there will be problems in the development of berries, so it is necessary to water appropriately, but not too much, otherwise the sugar content will be reduced