The management of winter jujube before the bud (before mid-April) is an important part of the management of winter jujube garden. The management points are:
Winter shears are generally completed 20 days before germination. The main purpose is to create a reasonable tree structure, ease the contradiction between nutrient distribution in the tree, regulate the relationship between vegetative growth and reproductive growth, and promote fruit setting. 1. The saplings that have not resulted or have just been produced should be pruned year after year according to the expected tree type. 2. The results of the tree, mainly through the slow release, sparse, short cut, shrinkage and other means to maintain or improve the original tree, so that the tree branches are distributed evenly, the level is obvious (that is, do not overlap the upper and lower, left and right Do not cross), ventilation and light on it.
Prevent and control pests and diseases after pest control. As a result, large trees have to be scraped off old bark. Before scraping the skin, a plastic cloth was laid underground, and the jujube garden was brought out after the scraping. For stem sticks with dry blight, use a sterile knife to scrape the disease and apply it with a bactericide. After pruning, the whole tree was sprayed once with 3-5 Baume degree lime sulfur.
Water and fertilizer management
Jujube trees require large amounts of organic and inorganic nutrients. Fertilizing the whole year is the basis for ensuring a good harvest. In view of the exceptionally strong characteristics of the vegetative growth of the tree species, in order to control the prosperous jujube tree in Huaishu, in addition to the need for fertilization in the particularly barren jujube garden in the spring, most of the jujube gardens do not apply or use fertilizers as quickly as possible. If base fertilizers (including partially available fertilizers) have already been applied in autumn and winter last year, fertilizers can no longer be used. If base fertilizers (including available fertilizers) are not applied in autumn and winter last year, organic fertilizers and some phosphate fertilizers can be applied. The types and quantities of fertilization are the same as the application of basic fertilizers in autumn and winter, that is, about 50 kilograms of organic fertilizer per plant, 1.5-2.5 kilograms of compound fertilizer, or 0.5 kilograms of urea, and 25 kilograms of ordinary phosphate fertilizer.
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