In recent years, in order to adjust the structure of fruit trees and increase the color of market fruits, farmers in Yunhe County have introduced some high-quality jujubes from Shandong and other places for planting, and some of them have initially demonstrated economic benefits. However, due to the lack of experience of farmers and the climate problems, jujube seedlings survival rate is often not high, which directly affects the economic benefits of jujube farmers. In order to increase the survival rate of jujube seedlings, the following points must be made:
First, jujube seedling selection of high quality jujube seedlings is the key to improving the survival of jujube trees. The criteria for high quality jujube seedlings are: the grafting site should be low (above the ground no more than 6 cm), the seedling height should be 60 cm or more, the diameter above the grafting site should be no less than 0.6 cm, there should be no date disease and other pests and diseases, and the new root system is rich. There are more fibrous roots, seedlings are vigorous and upright, and they have been cultivated for more than two years. The jujube seedlings to be planted should be dried and kept as little as possible to reduce the evaporation of water and nutrient consumption of the tree. Excessive cuts should be coated with oil and wax. Too long roots should be cut off. Go down to facilitate wound healing and new roots. Under conditions, ABT3 or No. 7 rooting powder can be used for immersing roots (half an hour) before planting.
Strictly control the technical procedures for raising seedlings, packaging, transportation, etc. to prevent water loss from seedlings. After long-distance transport of jujube, pay attention to moisturizing. If the root bark shrinks and dehydrates, it should be soaked in water for 5-8 hours, then cultivated in the cool place with wet sand and poured with enough water to keep the jujube seedlings in a humidity-saturated environment for 2-3 days until the water is dehydrated. Jujube seedlings are supplemented with water and then planted.
Second, planting density 1, low dense planting. Line spacing 3 meters -2 meters, 111 acres planted; or 3 meters -1.5 meters, acres planted 148.
2, dense planting. The row spacing is 2.2 meters to 1.5 meters, 200 acres are planted; or 2.5 meters to 1.2 meters, and 222 acres are planted (recommended to use this density).
3, high density plant. Line spacing 2 meters -1.2 meters, 277 acres planted; or 2 meters - l meters, acres planted 333.
Third, the planting method should be suitable for the depth of planting, generally should be deeper than the original site, in order to bury the grafted site is appropriate. When planted too deeply, the trees are not luxuriant; if they are planted too shallow, they are easy to fall down and wilted, exposing the grafted parts, which can easily cause feet. Before the planting, 3-5 kg ​​of soil fertilizer can be applied to each pit, and fully mixed with the backfilled mature soil. It is not possible to directly apply urea, fresh chicken manure or fresh manure to the pit to avoid burning the root system.
IV. Post-planting Management When jujube is planted, it should be poured with enough water in time, and then watered in a timely manner in case of drought; weeds should be eradicated timely, and crops should be protected in a timely manner. If conditions permit, they can cover the plastic film on the tree tray; timely prevent pests and diseases.
First, jujube seedling selection of high quality jujube seedlings is the key to improving the survival of jujube trees. The criteria for high quality jujube seedlings are: the grafting site should be low (above the ground no more than 6 cm), the seedling height should be 60 cm or more, the diameter above the grafting site should be no less than 0.6 cm, there should be no date disease and other pests and diseases, and the new root system is rich. There are more fibrous roots, seedlings are vigorous and upright, and they have been cultivated for more than two years. The jujube seedlings to be planted should be dried and kept as little as possible to reduce the evaporation of water and nutrient consumption of the tree. Excessive cuts should be coated with oil and wax. Too long roots should be cut off. Go down to facilitate wound healing and new roots. Under conditions, ABT3 or No. 7 rooting powder can be used for immersing roots (half an hour) before planting.
Strictly control the technical procedures for raising seedlings, packaging, transportation, etc. to prevent water loss from seedlings. After long-distance transport of jujube, pay attention to moisturizing. If the root bark shrinks and dehydrates, it should be soaked in water for 5-8 hours, then cultivated in the cool place with wet sand and poured with enough water to keep the jujube seedlings in a humidity-saturated environment for 2-3 days until the water is dehydrated. Jujube seedlings are supplemented with water and then planted.
Second, planting density 1, low dense planting. Line spacing 3 meters -2 meters, 111 acres planted; or 3 meters -1.5 meters, acres planted 148.
2, dense planting. The row spacing is 2.2 meters to 1.5 meters, 200 acres are planted; or 2.5 meters to 1.2 meters, and 222 acres are planted (recommended to use this density).
3, high density plant. Line spacing 2 meters -1.2 meters, 277 acres planted; or 2 meters - l meters, acres planted 333.
Third, the planting method should be suitable for the depth of planting, generally should be deeper than the original site, in order to bury the grafted site is appropriate. When planted too deeply, the trees are not luxuriant; if they are planted too shallow, they are easy to fall down and wilted, exposing the grafted parts, which can easily cause feet. Before the planting, 3-5 kg ​​of soil fertilizer can be applied to each pit, and fully mixed with the backfilled mature soil. It is not possible to directly apply urea, fresh chicken manure or fresh manure to the pit to avoid burning the root system.
IV. Post-planting Management When jujube is planted, it should be poured with enough water in time, and then watered in a timely manner in case of drought; weeds should be eradicated timely, and crops should be protected in a timely manner. If conditions permit, they can cover the plastic film on the tree tray; timely prevent pests and diseases.
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