Jujube tree flowering management is the key to jujube management and determines annual output. Recently, date farmers have asked for flowering management techniques, which are summarized below.
1. Opened golden jujube jujube flowering when the tree reaches 30% to 50% when open, winter jujube flowering amount of 20% when open armor is appropriate, a mouth width is determined by the strength of the tree, width is generally open A diameter of 1/8 to 1/10 of the diameter of the trunk of A requires a neat and narrow mouth.
2. Spraying hormones and fertilisers Spraying 9200 and foliar fertilizers 2 to 3 days after armoring. The formula is 1 gram of 90% water 50kg + 0.3% boron fertilizer + 800 times liquid Qiulefu. If the average fruit set is 3 to 4 per hang, it does not need to be sprayed a second time.
3. View A mouth generally small jujube tree 25 to 30 days A mouth completely healed, while the winter date 30 to 35 days completely healed as well. After 20 days of armoring, inspect the mouth of A. For complete healing, cut the callus to make it stable; for the tree without callus, brush the mouth with 9200 brush (1 g. 20 pairs of water 20 kg), then smear a mouth with 9200 mud. For rot or water in the mouth of a carbendazim with 50 times the liquid smear sterilization.
4. Summer shears can reduce physiological fruit loss. For the jujube tree at the top of the jujube all the first sparse, remove the jujube head of the most jujube stocks, for the space of the jujube head to leave 2 to 4 second branch topping, the long branch of the internal organs to flatten the branch into groups, also Can be cultivated as a new shoot.
5. Pest control For the flowering period of the green locust, red spider a serious date garden, optional granules or water solvent agent for prevention and treatment, the formula is 70% imidacloprid 10000 times +2.5% cyhalothrin 1500 times liquid + edfudin No. 1 5000 times liquid; 70% imidacloprid 10000 times + 2.5% cyhalothrin 1500 times + 20% dying net 2000 times or required Weeding, the inter-crop spray together.
6. Fertilization Watering For juvenile trees with weak vigor, few flower buds or no buds, apply 1–1.5 kg of jujube fertilizer + 0.5 kg of urea, or spray 0.3% of spray on the trees for 7–10 days. Urea. Water after fertilization to dissolve the fertilizer and it is easily absorbed by the tree body. The jujube tree without buds, on the basis of fertilizing and watering, sprayed 920 (1 gram of 90% to 30 kg of water) to promote the extension of the jujube hanging, reproduction of buds, and to keep the buds to the results.
7. Grafted jujube management For grafted jujube trees, the buds outside the scions can be wiped off to promote sprouting and shoots on the scions. When the scion shoots grow to 15-20 centimeters, it is bundled to prevent windbreaks. In addition, pay attention to timely loosen. According to the weather conditions, watering, fertilizing, urea 150 ~ 250 grams. When the scion shoots grow to 40 cm, tie it again. When the branches grow up to 50 centimeters in length, they will be picked up for the purpose of accumulating nutrient-enriched tissues. After the second year, the branches will be easy to shoot.
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