First, prune and promote the branches Immediately after the fruit is picked, a pruning is carried out, first the hanging fruit branches after the fruit picking, the fallen flowers and fallen fruit branches are shortened, and then the inner chamber yin branches, fine weak branches, over-dense branches, dead branches, and diseases and insects are all removed from the base, so that the canopy is ventilated and transparent, so as to facilitate the extraction of autumn shoots.
Second, the application of shoot fertilizer for trees with many fruits, old trees, weak trees should be put autumn shoots, in the middle of September, the end of the year is more appropriate. For trees that do not hang fruit or have few fruits, green and strong trees should be put twice, the first shoot is released in mid-to-late August, and the second shoot is released in early October. Tapping fertilizer is applied one week before each stalk, mainly nitrogen fertilizer, suitable for phosphorus and potassium fertilizer, according to each hanging 50 kg of fruit urea 1 ~ 1.5 kg, imported compound fertilizer 1.5 kg. Strong shoot fertilizer is applied when the new shoots are 10 cm long, mainly phosphorus and potassium fertilizer, and nitrogen fertilizer is appropriately added. According to 50 kg of fruit hanging per plant, 1 kg of compound fertilizer, 1.5 to 2 kg of decomposed peanut bran, and 0.5 kg of calcium superphosphate and potassium chloride were applied.
Third, timely dredging Of the shoots and stalks each time the new shoots grow to 3 to 5 cm. Generally, each base branch leaves 2 to 3 new shoots, 2 weak branches, 3 strong branches, and the rest are all erased. The new shoots left behind must be uniform in the direction of spatial extension.
Fourth, cultivate soil cover grass Longan root system has the characteristics of good qi and lust for new soil and mud. After fruit picking, the topsoil in the tree tray is hoeed and loosened, and then a layer of garbage mud, fire soil, pond mud or other miscellaneous fertilizer mud with a thickness of 3 to 5 cm is laid on the loose soil, and a layer of straw or other weeds with a thickness of 5 to 10 cm is covered, and a small amount of lime powder is sprinkled on the surface of the grass layer to prevent diseases and insects from growing in the loose soil or grass. longan
V. Pest control The pests that harm the longan autumn shoots mainly include the slender moth, scarab beetle, inchworm, wood lice, and leaf curls. Can be combined with extra-root spray fertilizer, spray control from the beginning of the new shoots and young leaves, can be used 1000 times liquid once net plus 1200 times liquid oxidation of Leguo, or with 3000 times liquid enemy killing plus 1000 times liquid water amine thiophos mixed spraying, sprayed every 7 to 10 days, until the leaves turn green and mature. If anthrax occurs, spray 100 grams with 1200 times liquid bacteria or 1000 times liquid before the initial stage of the disease.