The latest function and method of winter irrigation of grape

Grape is a common fruit, and grape itself is also a drought-tolerant plant, but it must be irrigated three times a year during critical periods, among which winter irrigation is more important. So when is winter irrigation good for vineyards? What's in it for you? Let's take a look.

1. Winter irrigation time

Grape winter irrigation time can not be too early or too late, if winter irrigation is too early, then the temperature is still relatively high, the evaporation of ground water is large, which is not conducive to field water storage and moisture preservation, which will reduce the cold and frost resistance of fruit trees. However, winter irrigation is too late and the temperature is too low. At this time, irrigation water cannot seep down and will freeze on the ground surface, which will also lead to more vulnerable roots to freezing damage. To determine the time of winter irrigation of grapes, it is necessary to base on the local climate. The temperature drops below 0℃ at night to freeze the soil. After the temperature rises during the day, the soil can be thawed. Winter irrigation is best at this time.

2. Winter irrigation

Winter irrigation can improve the cold resistance of fruit trees, ensure the safe winter of grape trees, winter irrigation can accelerate the decomposition of organic fertilizer, is conducive to the absorption of single minerals in roots, improve the accumulation of nutrients in trees, increase soil moisture, and improve yield and quality. Winter irrigation water storage in the soil, both to improve the ability to freeze, but also to prevent winter and early spring drought. Winter wind dry earth, often will cause loose soil, poor cohesion, and winter irrigation can use the soil in a wet state, both heat preservation and antifreeze.

3. Winter irrigation quantity

For winter irrigation, it is appropriate that all water should penetrate underground on the day of irrigation. Generally, it is appropriate for young trees to penetrate 20-30 cm, while for adult trees to penetrate 70-100 cm. 60%~80% of the maximum soil water holding capacity is appropriate. If too little can not meet the needs of trees, too much will also cause fertilizer to be washed away, not only causing fertilizer loss, but also time-consuming and laborious. Generally, after 2-3 hours of winter irrigation, you can see the depth of seepage outside the tree tray.

4. Winter irrigation method

Winter irrigation can adopt the method of well irrigation. Before well irrigation, dig a canal in the tree field according to the tree, open the gate to release water, and irrigate thoroughly, so as to make the tree drink enough, increase the water content of the root and improve the growth ability. And to 1-2 years old grape watering should irrigate root, to perennial tree all round with base big basin an elliptic earth ridge, lest water flows outward, can save water source so, achieve watering concentration, promote water infiltration is strong.

The above is the grape winter irrigation function and method introduction, hope to help you, want to know more related knowledge, please pay attention to us.