What are the benefits of winter irrigation for kiwifruit? Fruit growers should know early
Kiwifruit cultivation is very common in China. When growing kiwifruit, seasonal changes can have different effects on the growth of kiwifruit. Especially in winter, because winter temperatures are low, kiwifruit trees enter a dormant period. At this time, appropriate winter irrigation is needed to help the kiwifruit trees overwinter. So what are the benefits of winter irrigation for kiwifruit? Below, the editor will briefly introduce them to everyone. Let's take a look!
1. Enhance the cold resistance of the tree body
Proper watering of kiwifruit in winter can improve the cold resistance of kiwifruit trees. Because after kiwifruit trees absorb sufficient water, the water content in the tree body will increase. This speeds up their own metabolism and enhances the stress resistance of the tree body. At the same time, it can also prevent kiwifruit trees from dry freezing caused by physiological water shortage, helping the kiwifruit trees overwinter safely. Therefore, if appropriate winter irrigation is used when growing kiwifruit, it can not only play a role in heat preservation and moisture retention, but also enhance the cold resistance of kiwifruit trees.
2. Improve fertilizer absorption and utilization rate
In winter, in addition to watering, we also need to do a good job in fertilizing. Winter fertilization is generally mainly based on trench application, and during trench application, many fertilizers cannot be fully absorbed and utilized in the trench. Proper winter irrigation can speed up the decomposition rate of base fertilizer, and can also help the root system absorb minerals. It prompts the fruit trees to absorb unabsorbed fertilizer again, thereby improving the absorption and utilization of fertilizer by kiwifruit trees and increasing the accumulation of nutrients in the fruit trees. At the same time, it can also increase the water content of the soil, avoid spring drought, and is very beneficial to the yield and quality of kiwifruit.
3. Avoid air-drying of fruit trees
After entering winter, the air gradually becomes relatively dry, especially in areas with strong wind, and the water content in fruit trees drops sharply. In severe cases, fruit trees may also suffer from air-drying, especially for small trees and young trees, where the air-drying phenomenon is more serious. Therefore, irrigation in winter can promote water absorption by fruit trees, increase water content, and also increase soil moisture. It can avoid water shortage in kiwifruit trees in winter due to leaf evaporation, and can also prevent kiwifruit trees from dry freezing due to physiological water loss.
4. Pest and disease control
As just mentioned, because the temperature in winter is very low, kiwifruit trees gradually enter a dormant period due to low temperatures. During the dormant period of kiwifruit trees, because the nutrient demand of the aboveground part is relatively low, most nutrients move toward the roots. If a freezing water irrigation is properly applied at this time, the pest and disease control effect is very obvious. Because it can suffocate some insect eggs and larvae in the soil, reduce the base number of pests and diseases lurking in the soil for overwintering, thereby reducing the incidence of pests and diseases.
The above is a brief introduction to the benefits of winter irrigation for kiwifruit. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!