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Dry season citrus garden needs management
1, the garden irrigation water to see orange leaves slightly curled inward when the irrigation, the dry period is too long (more than 10 days) when the orchard irrigation can not be a one-time irrigation, to be a shower "Happy Valley water", 3-4 days later Re-irrigation once permeable, so as to avoid cracking. 2. Covering the tree tray with straw, wood leaves, and membranes, the tree tray can maintain the soil moisture of the tree tray. Orchard weeds do not affect the growth of fruit trees can not be eradicated temporarily, after the dry period after the eradication cover to the tree plate. 3, scientific fertilizer fruit during the expansion period and the fall period of the drought, the strong fruit fertilizer, attacking the tip fertilizer and shoot fertilizer must be applied thin. The compound fertilizer and potassium fertilizer can be dissolved in water. It is also possible to apply the foliar fertilizer several times, spraying 0.1% urea + 0.2% potassium dihydrogen phosphate mixture or SF Lele nutrient solution (50 kg/g water). Foliar topdressing and spraying of pesticides were avoided during the high temperature period from 11am to 4pm. 4. In time, prune the dry and dry branches on the canopy and cut them off in Jianjian, and cut out the branches and leaves of the ulcers and the branches of the black earthworms, and burn them out of the park. Orange garden summer shoots must be erased in time. 5. Pest Control (1) Sunburn. Move the canopy peripheral fruit to shield the leaves and avoid direct sunlight. The upper middle part of the fruit is vulnerable. The white light can be used to paste the fruit light-receiving surface or brush the lime slurry (concentration is not suitable for brushing fruit). (2) Anthrax. Autumn shoots and fruit stems are susceptible to anthracnose, and can be treated with 80% Dasheng m-45 wettable powder 600-800 times liquid or 25% torch wettable powder 1000 times. (3) Rust ticks and red spiders. After entering the "early autumn" period in August, the population density of rust mites and red spiders began to rise, forming the peak period of autumn damage. According to orchard pests, special acaricides can be used, such as 76% Ruizaote EC 2500x or 60% Donglong EC 2000x; as a result of Dasheng m-45 WP, both rust and ticks are effective and effective. , The effective period of 40 days or more, the use of the drug to prevent disease and cure two birds with one stone. (4) Citrus leaf leaf moth. The control of shoots should be done and the shoots should be put out uniformly. In the autumn shoots, spraying should be done. The spray should be sprayed every 5-7 days for the second time, depending on the situation and then sprayed a third time. The agent can use 20% of good year winter cream 1500 times or 2.5% of deltamethrin cream 3000-4000 times.