Date tree supporting technology method

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.

(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 on the tree to lay eggs, and to catch the moth each 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 stinkbugs.

(II) In early May, according to the report, 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 Diclofen 3000-4000 solution was used for prevention 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 will be topped with 0.5 kg of compound fertilizer, and 0.5 kg of urea may 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 bloom; spraying 250-300 times urea solution once every 10 days, spraying 2-3 times; when 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 spider mites, jujube mythimnasis, the use of drugs; agent is 40% water amine emulsion 1000-1500 times liquid, 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 kg of compound fertilizer, or 0.5 kg of diammonium phosphate, and watered and loosened in time 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 fruits, the basal fertilizer should be applied in a timely manner in the autumn and the water should be timely watered after fertilization.

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