The soil management is to cultivate the bare tree of the neck, the grafting interface is buried by the soil, and the soil consolidation is to adhere to the use of organic fertilizers, weeds, or soil conditioners to modify the soil, and continue the weeding and the tree cover to make the soil. Keep loose and fertile and drain well.
Deeper turning of the orchard and deeper turning of the orchard can increase the thickness of the soil layer, allowing the roots of the fruit tree to be lowered and improve its ability to resist drought and absorb nutrients. Can be buried organic matter or weeds, is conducive to loose soil, add organic matter, improve soil structure. Additional organic fertilizers are used to cultivate large root groups, and ginseng bio-organic fertilizers, or organic fertilizers from Padtian, or composite micro-organism fertilizers from woody land can be used.
Water Management Citrus young trees need a large amount of water during the autumn shoot growth period, but there is less corresponding rainfall in autumn. Corresponding irrigation and drought control measures must be taken to ensure that the young trees grow normally and prevent the growth of autumn shoots due to drought. Drought should be promptly irrigated to keep the soil moist.
The fertilization management of young trees in autumn is mainly to put the autumn shoots in place, and the cultivation task is to focus on vegetative growth and lay a good foundation for flowering results. Before the shoots, the planter seaweed nutrient solution + Shi Duoluo (citric acid chelated high-nitrogen water-soluble fertilizer) or Tianren humic acid 25-5-10 was used. After drilling, available rotting organic matter, water and fertilizer + high-potassium fertilizer to be applied, swiftness (amino acid water-soluble fertilizer) or good fish protein water soluble fertilizer + sildenol (citric acid chelated high-potassium water-soluble fertilizer) or natural human humic acid 10-6-24, as soon as possible to promote a mature autumn shoot. By October, paclobutrazol can be used to control the germination of winter shoots.
Pest control during autumn shoots should pay particular attention to leafminers, woodflies and other pests that harm young shoots. The prevention and control of leaf miners and hibiscus should be done regularly to spray pesticides and inspect pests at any time until they are mature. Or avermectin + thiamethoxam, thiacloprid or pymetroline thiacloprid + A-dimensional salts, etc., while controlling rafts, but also control the leaf miners, whiteflies and so on. Diseases are mainly prevention, and prevention of canker disease, anthrax, lipid maculopathy, and black spot disease should be done during the fall shoot period of young trees.
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