Generally, short fruit branches will grow in the second year, which are important fruit branches of old and weak trees. You can cut 2~4 pairs of flower buds, but you must have leaf buds when you cut them. If there are no leaf buds in the third section, the number of leaf buds can be reduced or increased appropriately, and the upper side of leaf buds can be cut off; If there is no lateral leaf bud, it can't be cut short, but it will be preserved intact. When the density is high, it can be sparse. During thinning, the 1~2 buds at the base are cut off as preparatory branches. Thirdly, the length of the bouquets of fruit branches is less than 5 cm, except that the top buds are leaf buds, the rest are flower buds. Pruning is knowledge intensive, not short-lived. Fourthly, the fruit branches are about 1 m long, and 8~ 10 pairs of flower buds can be left after short cutting, which can be used to cultivate new fruit branches with stone removal. Nectarine greenhouses should be built on sandy loam with leeward, sunny, Gao Qian, good irrigation and drainage and fertile soil. It can be built in a 3-year-old peach forest or transplanted after site selection, depending on the actual situation. The shed is made of bamboo and wood, and a single slope shed is built in the east-west direction. The back wall is hollow cement brick.

Seedling transplantation If a shed is built in the peach forest, it is not necessary to transplant peach trees, and the management of fertilizer and water can be strengthened. Before transplanting seedlings in new greenhouses, the soil should be deeply turned, and each greenhouse should be applied with high-quality organic fertilizer of 4000-5000 kg, NPK compound fertilizer of 20 kg and potassium sulfate 10 kg. Dig a strip planting ditch 60 cm deep and 80 cm wide. Three-year-old seedlings with developed roots, Miao Zhuang and full buds should be selected for planting. Planting should be in the north-south direction, with the plant spacing 1.5m× 4m, and the ratio of main varieties to pollinators is about 10: 1. Keep the root system stretched when planting, water it after planting and cover it with plastic film. The shape of nectarine in greenhouse generally adopts the slope group structure with high north and low south. The height of the northernmost plant is 45-50 cm, the height of spindle-shaped tree is 1.5m, and the height of heart-shaped tree is1m; The middle part gradually increases from south to north, and the east and west branches of the tree are Y-shaped.

Diseases and insect pests, drooping branches, overgrown branches and flowerless branches with abundant nutrition should be removed, and good light transmission conditions should be maintained. One month before the greenhouse was closed for fertilizer and water management, 3000 kg of organic fertilizer, 25 kg of diammonium phosphate compound fertilizer and 0/0 kg of urea were applied to each greenhouse, and water was poured once, then the ground was hoed and covered with plastic film. Spraying 0.3% urea solution 65438 0 times in young fruit stage; In the hard core stage, spray 0.3% urea solution and 0.3% potassium dihydrogen phosphate solution. Don't water the flowers from the shed. The humidity in the shed should be below 60%. Water should be poured once during the hard core period and fruit expansion period, but the amount of water should be appropriate and not too large, so as to avoid the vigorous growth of new buds and build a greenhouse for physiological fruit drop. Choose a plot with flat terrain, fertile soil and sufficient water to build a solar greenhouse. The shed is 3 ~ 5 from south to west, 50~60m in length, 7~ 10m in span, 3.2~3.4m in ridge height, 1.2m in front height and 1m in wall thickness. Scaffolds are made of steel pipes or bamboo.

In order to improve the utilization rate of light energy, nectarines should be planted in the north-south direction, with the plant spacing of 0.8 ~1.0m×1.5m. According to the requirements of row spacing, planting ditches with a depth of 50 ~ 60cm and a width of 80cm should be dug, and the mixture of core soil and organic fertilizer should be backfilled below 30cm, and generally 45,000 organic fertilizer should be applied. Seedling planting is generally carried out after soil thawing (March-April). In order to improve the survival rate and promote the development of root system, the root system of seedlings was soaked for 12 hours before planting to make it fully absorb water, and then soaked with biological nitrogen-fixing fertilizer or Genbao No.2 mixed mud. Pay attention to the extension of root system when planting, water it after planting, cultivate it immediately after the ground turns white and cover it with plastic film to raise temperature and keep moisture, and promote the development of seedlings. In addition, pollinated varieties should be reasonably matched, and the ratio of main planting to pollinated varieties is generally 8: 1~ 10: 1.