Nectarine should pay attention to strengthening the early supply of fertilizer and water in production; strengthen summer cut, improve light, and promote fruit coloring; control the amount of fruit left and prevent premature aging of tree vigor. First, fertilizer and water management, before the promotion of control According to the characteristics of fertilizer required for each growth period of nectarine, the topdressing fertilizer is watered in a timely manner. The nitrogen is mainly used in the early stage and phosphorus and potassium are the main components in the later stage. From planting seedlings to early July, fertilizer and water management will be strengthened to promote rapid growth of the crown. After mid-July, strict control of fertilizer and water. In the nectarine before flowering, young fruit stage, fruit expansion, foliar spray “melon and fruit bolus†+ 0.2% urea and 0.2% potassium dihydrogen phosphate, once every 10 days, help to alleviate the growth of new shoots. Take fruit for the nutrient competition, improve the fruit setting rate. From September to October, 5-10 kg of chicken manure was applied to each plant, and 0.2 kg of potassium sulfate was added, followed by irrigation. Second, the growth season trim The nectarine tree has stronger apical dominance, more branches, and new growth, and flower buds are easier to form. It is important to cultivate the high-yield tree shape earlier. After nectarine colonization, it is mainly to promote growth in the first two years in order to rapidly expand the canopy. The result of proper pruning of the branches directly affects the tree vigor and yield. Generally, branches with strong branching ability, low rate of fruit setting, and flat growing branches of upward oblique or juvenile trees should remain for a long time; weak branching force and high fruit setting rate Branches and twigs, pendulous branches should stay short; growth is stronger than weak growth of the tree, each fruit branch to stay 1-3 more flower buds, short-fruited branches of weak trees generally do not leave flowers. The wounds caused by trimming are smeared with "wounding anti-corrosion film" to prevent and cure chapped cracks. Third, control the flower Nectarine tree vigor is more prosperous, branches tend to grow mad, so to inhibit vegetative growth and promote flower bud differentiation. In the dormant period of the nectarine in the tree or the main branch of the tender skin at the bottom of the needle with two rows of holes, and then use the brush ring brush "promoting Kaowang No. 1", effectively control the growth of new shoots, promote flowers, save nutrition, improve Fruit setting rate. Four, thinning fruits and vegetables When the amount of flower buds is large, most flower buds and long-medium fruiting branches on the thin and thin branches can be removed for longer cuts and redundant double flower buds and late flowering buds with poor development. The first thinning of fruit was carried out in mid-May. The main fruit was dredged and fruit was produced, the deformed fruit, the small fruit, the base fruit, and the tip fruit. The second thinning of fruit is carried out from late May to early June. Generally, 20% to 3 fruit and 2 to 1 fruit in the middle fruit branch, 1 fruit in the short fruit branch, and no less than leaf to fruit ratio. 50:1, fruit spacing not less than 20 cm. Fifth, pest control The main diseases are bacterial perforation, perforation of brown spots, etc., with "new high-fat film" + 70% thiophanate-methyl WP 800 times, 65% zein zinc WP 500 times spray. Insect pests mainly include locusts, red spiders, and so on, which can be used to purify 3000 times 10% of the net. ?Nectarine and other facilities than fruit trees, nectarine easy to manage, high yield early, excellent prices, high efficiency. Strengthen the above management measures to produce high-efficiency nectarines.
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