How Do Pepper Trees Overwinter? A Detailed Explanation of the Latest Management Key Points
In some provinces of China, the pepper tree is a very popular side dish and also a traditional Chinese medicinal herb, and it is very beneficial to human health. Therefore, the planting area of pepper trees is now relatively large. However, because the cold resistance of pepper trees is relatively poor, overwintering management of pepper trees is very important in winter. So how should pepper trees overwinter? Below, the editor brings you the key points of overwintering management for pepper trees. Let's take a look!
1. Tree body management
Before entering winter, we should first whitewash the trunk of the pepper tree. Whitewashing the trunk can effectively eliminate pathogenic bacteria and insect eggs lurking on the trunk to overwinter. It also has strong light-reflecting ability and can minimize the temperature difference between day and night as much as possible. When whitewashing, the entire trunk should be whitewashed, all the way to where the soil mound forks. At the same time, we can also spray an appropriate amount of protective agents on the leaves, branches and trunk, such as amino acid foliar fertilizer, Antaisheng, etc. After spraying, it can close the stomata of the branches, avoid excessive water consumption and thus the occurrence of branch shriveling, and can also delay the flowering period of pepper trees and enhance their cold resistance.
2. Smoking and earth banking
In winter, around 11 p.m. is generally the coldest time period. At this time, we can smoke the orchard to prevent cold, using sawdust, fallen branches and leaves, etc. as the main fuel, and pile them together to form a smoldering fire, so that the whole orchard is covered with thick smoke. However, attention should be paid to controlling the fire intensity and the smoking position, avoiding being too far from the pepper trees and causing them to be burned, and also paying attention to fire prevention. Then bank soil at the base of the trunk, with a diameter controlled at about 1 m, and the height of the banked soil at about 15 cm, mainly to protect the roots and avoid severe freezing damage. After entering spring, remove it in time to increase the ground temperature.
3. Pruning and covering the tree盘
In early winter, for pepper trees that have already shed their leaves, especially trees within two years, we should prune them in time and do a good job of tip pruning. This avoids excessive consumption by the tree body, improves nutrient accumulation in the tree body, and thereby enhances the cold resistance of pepper trees. Then we can also cover the tree盘 around the tree with rice straw, corn stalks and other grain straw. It can not only preserve soil moisture but also increase the ground temperature. At the same time, plastic film or leaves, etc. should be laid within 1 m around the trunk, which can effectively reduce freezing damage to pepper trees.
4. Winter irrigation for water retention
After entering winter, the soil is very prone to freezing at night and thawing during the day. Therefore, we should dig trenches between the rows of pepper trees and then pour sufficient water along the trenches. Ensure that before nightfall, the water can fully infiltrate into the soil. In this way, the water we irrigate in winter can be used in spring. It avoids the occurrence of spring drought and is also very beneficial to the growth and development of pepper trees. Moreover, water also has the effect of storing temperature, which can ensure a relatively balanced ground temperature in winter and reduce freezing damage. After winter irrigation, cover with grass in time and appropriately shallow hoe to avoid excessive water evaporation.
The above is a brief introduction to the key points of overwintering management for pepper trees. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!