First, January-March
(1) Scrape the bark and scrape off the cracked skin and cracks on the trunk and the stem to reduce the density of overwintering insects on the trunk.
(b) Saplings are dried and cultivated; the resulting tree is pruned in winter; the old jujube tree is pruned in winter.
(3) In early March, a 10 cm-wide plastic sheeting is wrapped around the base of the trunk to prevent the female moth from laying eggs on the tree and catch moths every morning and evening.
(4) Jujube trees without basal fertilization in the autumn, supplemented as soon as possible after soil thawing in early spring. Generally, the results of each plant were 50-70 kilograms of farmyard manure in Zaoshugou, 2.5-4 kg of superphosphate and 0.5-1 kg of urea. Watering and soil protection after timely fertilization.
Second, April-May
(1) Spraying 50% of methamidophos emulsion 1000-1500 times in the budding stage of jujube to prevent and treat food buds, jujube mealworms, green-blind stink bugs, and stink leafhoppers.
(II) In early May, according to the survey, when a few of the larvae of Zyraphorus were up to the third instar, the 2.5% deltamethrin 4000-8000 solution was sprayed in time, or 20% of the fast-killing Dicsafe 3000-4000 solution was used to prevent and control. . At the same time, it also treats the pests of Mythimna separata, Myxospermum obliquus and other pests.
(3) In late May, each tree of the results was topped with 0.5 kg of compound fertilizer, and 0.5 kg of urea could also be topdressed. Top dressing uses multi-hole top dressing. Water and loose soil in time after topdressing, combined with loose soil to remove the roots under the trees.
(4) Capture the base number of the low insects of the old-fashioned Zaojiao and the Mythimna separata.
Third, June
(1) When the jujube blooms 30% to 40% open, the open armor is applied once with the armor and 50% methamidophos emulsion 50 times, and then applied once every 5 days for a total of 4 times to prevent the pest from harming. . After 25 days of armoring, mouthwash is applied to promote healing.
(b) spraying 10-15ppm gibberellin or 10-15ppmgk Fengfengling at full flowering stage; spraying 250-300 times urea solution every 10 days and spraying it 2-3 times; during drought, every 1 - Spray water once a day in the evening and spray 3-5 times to promote fruit setting.
(C) summer cut, in the canopy, every 50-60 cm selected to leave a newborn date head, and according to the size of space topping. The juniper heads are erected and the competition is too fine and too weak to facilitate the expansion of the crown.
(D) In ​​the middle of June, timely prevention and control of red spider, jujube mythimnasis, the use of drugs; agent is 40% water-mosulfide emulsion 1000-1500 times, 20% eradication emulsion 3000-3500 times e, 20% of dicofol Emulsion accompanied with 80% dichlorvos emulsion 8000 times solution, and cure peach moth, moth and other pests.
(e) In the end of June, a 50% phoxim emulsion 150-200 times is poured on the ground within a range of 1-1.5 meters from the base of the trunk. After irrigating, the soil loosened and the larvae unearthed were killed.
Fourth, July
(-) In early July, each tree was topped with 0.5-1 kilograms of compound fertilizer or 0.5 kilogram of diammonium phosphate. Watering and soil loosening immediately after topdressing.
(b) pay attention to prevention and treatment of jujube rust and peach borer, red spider, juvenile armyworm and other pests and diseases. Pay attention to drainage.
May, August-September
(1) Collect and drop fruit in time, pay attention to pest control and prevent fruit drop before cauliflower.
(b) low-lying Zaoyuan should pay attention to drainage.
(3) 5-8 days before fruit harvesting, spray 40% ethephon 250ppm solution for ripening.
June and October
(a) Remove fallen leaves in time.
(2) After the harvest of jujube fruit, the basal fertilizer shall be applied in a timely manner in the autumn and the water shall be timely watered after fertilization.