Transplanting techniques of crisp pear trees
1. The transplanting trees can be transplanted as long as there are no serious diseases and insect pests, but the practice has proved that the survival rate is higher if the trees with younger age (less than 20 years old), lower trunk and more complete crown are selected.
two。 Before transplanting, cut off the branches of diseases and insect pests, the higher branches, the overdense branches at the base and the transitional branches between layers, and properly retain the lower backbone branches, less than 2-year-old branchlets and better branches. In September, the big trees to be transplanted were treated with root cutting to form callus, which was beneficial to survival.
3. During the transplanting period, pear trees can be transplanted from defoliation to germination in the following year, but it is the most suitable from defoliation to soil freezing.
4. In the transplanting method, when digging the transplanted trees, the backbone roots and absorbing roots should be preserved as much as possible. When transplanting, according to the planting plan, dig a big pit and apply sufficient basic fertilizer (20 to 30 kilograms of organic fertilizer and 2 to 3 kilograms of superphosphate per plant). After planting, irrigate and shake the tree trunk so that the root system stands in the watered mud. After underwater infiltration, the soil is sealed and fixed to ensure that the root system absorbs enough water.
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How to prolong the storage period of fresh jujube
Jujube contains a variety of trace elements and rich nutrients, which has unique nutritional and medicinal value. However, the fresh jujube is stored under natural conditions after harvest, and the flesh will soon turn brown and soften after only a few days of fresh crisp period. After several years of experimental research, the author believes that in order to prolong the storage life of fresh jujube, we must grasp the following key technologies: first, to select storage-tolerant varieties, generally speaking, late-maturing varieties are more resistant to storage than early-maturing varieties, and dual-purpose varieties are better than fresh varieties. At present, the quality and storability of winter jujube are fresh.
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Dragon jujube
Dragon jujube: also known as Longxu jujube, is a special variation of the local long red jujube. The fruit is flat and columnar, with a weight of 3mi 4g, uneven surface and reddish brown when ripe. The quality of fresh and dry is poor. The fruit ripens in late September. The tree is small, the tree posture is open, and the crown is in the shape of a natural garden head. The 20-year-old tree is about 4 meters high and 4 meters in diameter. The jujube head is purplish red, the tree shape is curved and uncertain, some are winding and extending forward, and some are winding and growing in a circle. Like dragons flying, elegant and lively. The growth potential is weak. The grafting can bear fruit in the same year, and the yield is low.
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