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Citrus Orange Management Essentials
First, re-apply strong fruit fertilizer. Its fertilization amount accounts for about 30% of the annual fertilization amount. It uses mainly organic organic fertilizer. It is excavated between 50 to 100 centimeters from the main line and is 20-30 centimeters deep and 20 centimeters wide. Ditch, big tree 2.5 kg of each cake, 50 tons of cooked pig cattle bark or human excreta; small tree 1.5 kg per cake, 25 tons of cooked pig cow manure or human excrement, and then cover irrigation. In addition, the canopy should be sprayed with 2-3 foliar fertilizers, sprayed with 0.3% urea solution plus 0.2% potassium dihydrogen phosphate mixture and sprayed once every 10-15 days. Second, irrigation drought. From July to September, when the high temperature and dry season, when the growth and fruit development require a lot of water, should be about 10 days in continuous drought irrigation once. After 1-2 days of irrigation, one cultivator was used to reduce the evaporation of water, or to cover the soil with weeds and leaves to cool the water and drought. Third, wipe buds. Shoot early and robust autumn shoots, is to seize orange trees in the coming year, an important basis for high quality and high yield. Since mid-July and late July, a sporadic autumn shoot has been wiped off every 2-3 days until the leaf miner in early August has harmed the low-beehive period (when the leaves at the base of autumn shoots are harmed, and the upper middle leaves are free of pests, it is potential Leaf moth harms the low-peak period, and puts the early autumn shoots together, that is, the autumn shoots leave 20-30 centimeters long to pick up the heart, and timely erase the late autumn shoots. This will not only cultivate a strong early autumn shoot, but also avoid or reduce the damage of leaf miners. IV. Pest control. When the shoot length grows to 2-3 cm, spray 20% aqueous amidogrion emulsion 800 times or 40% water phosphathiophosphate 1000-1500 times, or 40% speed cull EC 800 -1000 times liquid. Indications leafminer, red spider, and rust ticks, scale insects. In late August, 0.3-degree lime sulfur was sprayed to treat red spiders, rust mites and concurrent leaf miners. In early September, Kirkite spray 2000-3000 times, indicating rust mites, spider mites. With Topbuxon 800 times solution to control anthrax, continuous 2-3 times, the effect is very good.