What is the timing and function of grape winter irrigation?
For most women, the introduction of the timing and function of grape winter irrigation related to green plants and flowers is as follows:
What is the timing and function of grape winter irrigation?
Grapes are a common fruit, very popular among people. Grapes are relatively drought-resistant plants, but it is essential to ensure irrigation at critical periods three times a year, with winter irrigation being the most important. So, when is the timing for winter irrigation in vineyards, and what are its functions? How should winter irrigation be carried out?
Winter Irrigation Timing
The timing for grape winter irrigation should not be too early or too late. If winter irrigation is too early, the temperature is still relatively high, and the evaporation of groundwater is significant, which is not conducive to field water storage and soil moisture conservation, and can reduce the cold and frost resistance of fruit trees. However, if winter irrigation is too late, the temperature is too low, and the irrigation water cannot seep into the ground, causing it to freeze on the surface, which makes the roots more susceptible to frost damage. To determine the timing for grape winter irrigation, it should be based on local climate conditions. When the temperature drops to below zero at night, the soil will freeze. When the daytime temperature rises, the soil can thaw. This is the best time for winter irrigation.
Functions of Winter Irrigation
Winter irrigation can improve the cold resistance of fruit trees, ensure the safe overwintering of grapes, accelerate the maturation of organic fertilizers, promote the absorption of single minerals by the roots, promote the accumulation of nutrients in the trees, increase soil moisture content, and improve yield and quality. Winter irrigation can not only improve frost resistance but also prevent drought in winter and early spring. The winter wind and dry soil often lead to loose and poorly cohesive soil, while winter irrigation can keep the soil moist, which can both preserve heat and moisture and prevent frost.
Winter Irrigation Water Volume
Winter irrigation should ensure that all water seeps into the ground on the day of irrigation, with 20-30 cm for young trees and 70-100 cm for mature trees, accounting for 60%-80% of the maximum soil water-holding capacity. If too little water is used, it will not meet the needs of the trees, and if too much is used, the fertilizer will be washed away, not only causing fertilizer loss but also being time-consuming and labor-intensive. Generally, after 2-3 hours of winter irrigation, seepage depth can be seen in the pit outside the tree's basin.
Winter Irrigation Methods
Well irrigation can be used for winter irrigation. Before灌溉, dig water channels in the orchard according to the tree rows, open the gate to release water, and thoroughly irrigate the trees to increase root moisture content and improve growth capacity. For 1-2-year-old grapes, water the roots, and for multi-year trees, build an elliptical earthen ridge around the large basin to prevent water from flowing out. This can save water, achieve centralized irrigation, and promote strong water seepage.
The above is an introduction to the timing and functions and methods of grape winter irrigation, hoping it is helpful to you.
The above sharing of the full content of the timing and function of grape winter irrigation can help you, and we also hope that everyone comes to see more green plant and flower experience and common sense!