First, citrus fertilization method. Ring groove can be applied, such as the groove and other methods. The applied farmyard fertilizer needs to be fully fermented and decomposed; one-time application of chemical fertilizer should not be excessive, and should be applied sparingly. In addition, the main root layer of adult trees is distributed in the depth of 40-60cm, and the main absorption root is the apical root-new root part of the root, which should be used as the basis for determining the depth and location of fertilization.

Second, orange base fertilizer fertilization method. It takes place in November-December. The specific method is to apply once a year, staggered between the lines from the canopy dripping line to excavate radial or semi-annular or annular fertilization ditch, pay attention not to cut off the big roots. The amount of fertilizer should be increased or decreased according to the age of the tree and its growth. Combine the roots and prune each plant and put the weeds and green manures in the bottom of the ditch and then apply it to the base fertilizer. Mix well with some soil in the fertilization ditch. The results should increase the use of tree ash fertilizer, potassium sulfate and other potash fertilizer for flowering results.

Third, citrus fertilizer. Can be accompanied by decomposed agricultural livestock waste water, oil dry water application. In the young stage, nitrogen fertilizer (urea) is dominant, and then high-quality compound fertilizer is properly applied. Specifically, according to fruit trees in the initial period of the shoots and the rapid extension period (mid-term), dig holes are applied at the drip line of the canopy, and each time after fertilization, soil must be covered. The soil should be kept moist during fertilization and 7 days after fertilization; The top dressing of the results tree was specifically applied to spring shoots 10-15 days before germination from late January to early February to promote spring shoots and flower bud differentiation; the end of April and early May, 5 to 7 days after flowering, a stable fruit leaf was applied. Fertilizer, and combined with photosynthetic nutrient film fertilizer to increase fruit setting rate; in the end of June and early July, after the second physiological fruit drop was stopped, strong fruit fertilizer was applied, mainly nitrogen and potassium, and in conjunction with the use of Zhuangguo Tiling, can be activated Plant ecology grows positive energy, broadens the route of plant conduits, enhances plant water absorption and absorption, increases fruit yield and quality, reduces fruit drop rate, and reduces the incidence of cracked fruit, stale fruit, and deformed fruit. It can activate the positive growth of plant ecology, widen the route of plant conduits, increase the water absorption capacity of plants, increase the fruit yield and quality, reduce the fruit drop rate, and reduce the incidence of cracked fruit, stale fruit, and deformed fruit. Http://

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