Long jujube
Long jujube planting management technology First, the pruning principle is to leave a jujube head in the middle, leaving one jujube head in each other, a total of 5 jujube heads, a tree no more than six. If you stay more, jujube trees should not be fruit. The secondary branches that have become thinner at the time of trimming are removed because they are already aged. The second branch on the main branch is also a part of the denser part. Second, fertilization The jujube tree is not applying any fertilizer, nor does it need to pour any water. If it is not the result, the jujube tree can be applied with compound fertilizer. Dig a small pit 50g from the trunk and apply 100g in the other direction. A tree does not exceed 200g at most. The base fertilizer should be applied in a ratio of 2:1. If it is a 2m × 3m tree, it will be applied in the middle of each tree. If the jujube leaves of the positive result are yellow, they can be applied as appropriate. The types and concentrations of fertilizers commonly used for foliar application are: urea 0.2% to 0.3%, zinc sulfate 0.3%, borax 0.3%, ferrous sulfate 0.2% to 0.3%, potassium dihydrogen phosphate 0.2% to 0.3%, and grass ash leaching solution 4%. . Note that the spray head should be the main one, and the evening spray on sunny days is the best. Third, pest control In the early stage of germination, the buds on the main branch are 1cm long. At this time, the anti-insect and disease-preventing drugs must be used once. You cannot wait until the buds on the secondary branches grow to the soybeans. When the buds on the secondary branches are as large as the mung beans, they can use the blind cockroaches or the Chunling Jinjiajing to prevent blind mites, all of which are 1500 times. Spray evenly on both sides of the small spray. Kill the worm once and never repeat it twice. Fourth, flower protection, fruit preservation, high-yield technology (A) smear buds in early May and other jujube germination, combined with plastic pruning, will not be extended branches and the results of the branch group of newborn jujube head erased from the base. On the second branch, jujube stocks should grow 3~4 jujubes, but after the jujube crane grows, there will be new jujube heads. Two or three new jujube cranes should be kept, and the jujube heads should be erased. Save nutrients. (2) Shuzhi 1. Combine the spring shears and summer shears to cut off the young branches and pests and branches that are sprouted on the perennial branches and backbone branches. 2. Pulling branches: During the period of May 15-20, the erect branches and the unreasonable branches are drawn into a 70-80° angle with the trunk. The first layer of the main branch is unevenly drawn to the appropriate position. Mark the mark before pulling the branch to prevent pulling and pulling the branches. After pulling the branch for 15d, it can be loosened to prevent damage to the branches. (3) Toppings During the period of May 15-20, it will be carried out simultaneously with Lazhi. Remove the top buds of all jujube heads. Control growth, stabilize tree potential, and reduce nutrient consumption. (4) Fighting the heart On May 25-30, the heart of the secondary branch on the head of the newborn jujube was removed, limiting the extension of the secondary branch, saving nutrients, promoting flowering and increasing the fruit setting rate. (5) Ring stripping 1. Ring stripping time, ring stripping is carried out in the long jujube flowering period. One jujube hanging has 5~8 flowers open for the early stage of jujube hanging flower. The whole tree has 60%~70% of jujube hanging open 5~8, which can reach the beginning of full bloom and can be stripped. The general year is in early June, individual years, or individual jujube gardens will be postponed until mid-June. 2, the stripping part, the first ring stripping on the trunk, in order to avoid technical unskilled, to ensure the successful stripping, there must be 1~2 vegetative branches under the ring stripping, the second year of ring stripping and the first The annual ring peeling distance is more than 5cm. (VI) Management of maturity period Pay special attention to the fact that at maturity, it is absolutely impossible to spray foliar fertilizer containing nitrogen and auxin, foliar fertilizer advocates spraying potassium fertilizer, trace elements (such as Zhuangduo), and rare earth and other foliar fertilizers. In addition, it should be noted that less or no watering. The management technology of the above jujube seedlings is organized by Zhangzhou Yongcheng Planting Co., Ltd., want to know more about the long jujube planting technology, the management method of the long jujube, the price of the jujube seedlings, etc., please visit the website: http://www.bfzao.com Enquiry, I hope to help you grow jujube seedlings.
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