April – Budding
(1) Perform plastic trimming, culture and adjust the skeleton structure before germination, so that the layout is reasonable and the ventilation is transparent. Young trees of 1-4 years old generally do not thin branches; more than 5 years old, dense branches and long branches have been treated; 7-8 years old fruiting branches are updated in time, and the branches of unstretched trees are opened.
(2) In the early stage of germination, spray 0.3-0.5 ° Be stone sulfur compound to control red spiders and shell insects.
(3) Use black light lamps to trap adult jujube armyworms.
(4) After germination, remove the improperly positioned or excess dates in time.
(5) Spray 5% jammea emulsion 1000 times or 10% imidacloprid 4000-6000 times or chlorpyrifos 1500 times in mid-to-late April + 2000 times liquid to control jujube inchworm, red spider, jujube stickworm, jujube bud weevil, green blind bug, jujube gall mosquito, etc.
(6) In late April, sprinkle octyl thiophosphorus granules in a tree tray within 1 m of the trunk and hoe shallowly to kill the jujube gall mosquitoes and jujube bud weevils unearthed.
Early and mid-May - leafing period
(1) In early May, spray 99.1% of the 2000 times of larval urea No. 3 2000 times (or + fruit insect enemy 1000 times) liquid, control jujube gall mosquitoes, red spiders, dancing poison moths, green blind bugs, jujube inchworms, etc., spray twice at intervals of 10 days.
(2) In mid-May, in the dry year, the jujube garden was watered once before flowering, and 150-300g of young trees with diammonium phosphate were applied to the plant, and the fruit trees were 500-1000g. For upright growing jujubes, the branches should be pulled at an opening angle to improve the ventilation and light transmission conditions of the tree, ease the growth potential, and promote fruit set.
Late May – pre-flowering
(1) The jujube head is plucked in late May, and the secondary branches are picked from the end of May to the beginning of June. The jujube hanging is carried out in mid-to-late June. The earlier the topping, the better the effect of preserving flowers and fruits.
(2) Spray 10% Liuyangmycin 1000 times + 10% nicotinoid emulsion + methylparus 800 times or mite death net 2000 times + methyl 800 times liquid before flowering, prevent and control jujube ticks, jujube armyworms, red spiders, jujube black spot disease, etc.
(3) From late May to early June, it is best to sprinkle spice thiophos particles in a tree tray within a range of 1 m from the trunk after the rain, killing pests such as peach small.
June – Flowering period
(1) When each jujube hanging flowers 3-8 flowers, perform ring peeling or circumcision. Generally, the width of the ring peeling is 1/10 of the longitude, the widest should not exceed 1cm, it is appropriate to heal in 25-30 days, the large trees and strong trees can be appropriately wide, and the small trees and weak trees should be narrower. Trees that are too thin or too weak to be peeled off can be cut 2-3 knives on the trunk or main branch at intervals of 3-5 cm, and then circumcised 1 knife after 1 week. After 10 days of ring peeling, apply 1000 times the fruit worm bik to prevent beetles. In general, jujube trees can only be peeled once a year, and individual oversized trees can be peeled twice.
(2) In early and mid-June, when the jujube crane flowers to 5-8 flowers, spray 15mg/kg gibberellin once, and add 0.2%-0.3% borax and 0.5% glucose to improve fruit set rate.
(3) When the flowers are nearly 50% open, they can be sprayed with water 2-3 times in a row for 2 days in the evening or add 0.3% urea or 600 times the jujube special abundance to protect the flowers and fruits.
(4) Artificial capture of scarab beetles, yellow-spotted bugs, jujube shoot weevils and other pests in late June.
(3) From late June to early July, spray mites clear 2000 times + Paul 2000 times + isobacterium urea 600 times + jujube tefeng 800 times, control jujube armyworm, peach small, cotton bollworm, beet nocturnal moth, red spider, turtle wax mite, macular bug, rot rot disease, rust, jujube leaf spot disease, etc.
(6) From late June to early July, young trees were subjected with 150-250g of diammonium phosphate and 500g of potassium sulfate, and the fruit trees were doubled, combined with fertilization and watered once to promote fruit water. After watering, the jujube garden is covered with 20-25 cm thick wheat straw or weeds, and the grass is covered with soil compacted to prevent wind blows.
July – young fruit
(1) In early July, spray a double Bordeaux liquid once to prevent date rust. Use black light lamps to trap and kill adult leopard wood beetle moths, spray BT emulsion 500 times to control peach small, and treat turtle wax beetle nymphs.
(2) In the early and middle of July, the fruit is thinned, and the strong tree retains 1 fruit per jujube, the zhongyong tree retains 1 fruit per jujube, and the weak tree retains 1 fruit in 3 jujubes to increase the weight of the single fruit and reduce the fruit fall.
(3) Spray 600 times + 100-140 IU agricultural streptomycin + jujube 600 times in mid-July to control beet moth, cotton bollworm, jujube rust, jujube leaf spot disease, rot disease, shrinkage disease, etc.
(4) Spray 400 times Green Depot + White Witt 1500 times in late July to prevent and control jujube rust, jujube leaf spot disease, rottle disease, red spider and so on.
August – The fruit expands
(1) Spray 1% agricultural resistance 751 water agent 300 times + 100-140 IU agricultural streptomyces cord in early August to prevent jujube fruit shrinkage disease and jujube spot disease.
(2) Spray 10% nicotine emulsion or 10% polyoxymycin in mid-to-late August to prevent and control jujube armyworms, heartworms, spotted leaf litter and fruit diseases.
September – fruit coloring period
(1) In early September, pentenazolidol 1000 times + 140 IU agricultural streptomycin + jujube tefeng 600 times + Merrill Lynch calcium to prevent jujube rust, anthrax, shrinkage, peach small, turtle wax bug, etc., while improving fruit quality and enhancing fruit storage resistance.
(2) In early September, we tie grass handles to the trunks and large branches to lure in wintering pests such as jujube armyworms, jujube moths, and red spiders.
(3) In mid-September, the spray mold is 600 times clearer + potassium dihydrogen phosphate is 300 times clearer, and the rot rot disease is prevented.
(4) In mid-to-late September, the base fertilizer was applied to the jujube garden, and the organic fertilizer was applied to 10-30 kg, the calcium fertilizer was 0.25 kg, and the urea was 0.15-0.25 kg, and the hole expansion ring fertilization was adopted. 4-8 years old trees are fertilized with 50-75 kg of organic fertilizer, 0.5-1 kg of calcium fertilizer, and 0.2-0.5 kg of urea. Iron and zinc deficiency trees can increase iron and zinc fertilizer.
October – fruit ripening
(1) In early October, silver fruit spray 600 times + high-efficiency calcium + agricultural streptomycin to improve fruit quality and storage resistance, and prevent rotten fruit disease.
(2) Starting from the beginning and middle of October, the winter dates are harvested in batches, and the harvest is best carried out after the dew dries in the morning.
(3) After fruit picking, the tree body is sprayed once again with 600 times carbendazim or 800 times methyl tolbutzin, and the disease and insect fruits are picked up and destroyed centrally to reduce the source of diseases and insects.