Precocious peaches, early maturing, high quality, single fruit weight 100-160g, fruit surface thick red, fine meat, hard solute, sweet flavor, soluble solids 15.5%, high yield stability, extremely resistant to storage and transportation, the price is ordinary nectarine 2 More than times. In the spring of 2002, this species was introduced from Shouguang City, Shandong Province, and a greenhouse cultivation experiment was conducted in Dushan Village, Liangshan Town. 1 test conditions The average annual temperature in the area is 13. 5°C, and the average temperature in January is -1.9°C. The test site is a plain farmland with deep soil and loam, with a pH of 7.5. A total of 10 greenhouses were built, east-west, 7m wide, 70m long and 2.5m high. Cement pillars, bamboo truss structure, covered with no drip film. Sooner or later, grass cover is uncovered and no heating equipment is provided. The greenhouse cultivation area of ​​early oil peach was 0.45 hm2. The shed was covered in the first half of November. In the middle of May, the fruit matured and matured 30-40 days earlier than open cultivation. The average yield was 3.2 kg, and the total output was 10,350 kg (666.7 square meters equivalent to 478 kg). 2 Planting technology Planting time is locally in early March. In order to make full use of the land in the greenhouse and increase the yield per unit area, we adopt high-density cultivation with spacing 1.8m0.8m. Planting and digging trenches by line, width 80cm, depth 60cm, topsoil and heart and soil were placed. The whole shed applies chicken excrement 3500kg, compound fertilizer 50kg. First fill the topsoil into the bottom layer, and then fill the planting trench with the mixture of the soil and the fertilizer. After the water is poured, transplant it. After the planting, put a small amount of water and cover the soil. Seedlings for the "three when" seedlings, more than 80cm high, nectarine anvil. To expose the peach tree as a pollination tree, the proportion is 10:1, that is, every 10 rows of early oil peach plant 1 line early peach. 3 Integer trim Select the tree shape as "Y" shape, east-west direction, dry height 30-40cm, leaving the two opposing main branches obliquely between the rows, the result is that the branches directly on the main branch, each branch with 10-15 students The result is a branch. The specific method is: 40-50cm after the seedlings are planted, and after the new shoots are released, two pairs of healthy shoots with suitable growth direction are selected and all other cuts are removed. At the beginning of July, the two new shoots will be taken diagonally at the open corner. During winter cutting, the strong twigs on the back were removed and the dense and weak branches were removed to make the branches scattered on the main branch. After the fruit is harvested, the resulting branches of the two main branches and other branches are retracted to the base, leaving 2-3 leaf buds as renewed branches, while leaving a certain number of secondary branches. After 1 week of pruning, the buds began to germinate, and the two main branches grew more than 10 branches each. 4 Control Technology In order to realize the goal of one year planting and two-year high yield, the key is to promote the formation of sufficient amount of flower buds in the planting of early oil and peach. The general management principle is to promote the post-control. Before June 20th, it is necessary to meet the demand of tree growth for fertilizer and water, and to promote the rapid growth of the tree. After June 20th, 0.33 ppm of PP333 and 0.04% of potassium dihydrogen phosphate were sprayed. After 2 weeks, the spray was sprayed once again to control shoot growth and promote flower bud formation. 5 Temperature and humidity control In Liangshan area, the time for capping is appropriate in the first half of November. After the shed is covered with grass, it is raised at night to meet the natural dormancy temperature requirement. When the temperature drops to 0-2°C, the temperature of the plastic film is covered. The grasshoppers were opened during the day and covered at night to promote budding. During the first 7 days, the daytime temperature was controlled below 18°C, and after 7 days, it was controlled below 25°C; the flowering temperature did not exceed 23°C and could not be lower than 5°C during the night; the fruit's daytime temperature was 28°C and nighttime was 15°C. The relative humidity in the shed should be controlled between 70% and 80% from the shed until flowering, about 40% at the flowering stage, and less than 60% after the fruit set. 6 Water Management In the mid-May of the year of planting, Pushi applied a high-quality compound fertilizer mainly composed of nitrogen, phosphorus and potassium. The plant applied 0.1kg to facilitate the growth of new shoots. In late September, basal fertilizer was added, mainly soil-based miscellaneous fertilizer. The higher temperature at this time is conducive to the conversion and absorption of organic fertilizers. After the second year's results, 30 kg of high-quality compound fertilizer is required to be applied to the hard core to promote fruit development. Put enough water before the shed, after which you can combine fertilizer and watering. 7 Flower and Fruit Management In order to ensure fruit set, the flowering period must be pollinated. The main methods are: spray 0.3% borax and 0.33% urea solution during the flowering period; use bee pollination, store 1-2 boxes of bees throughout the shed; 3. artificial pollination, use of rubber The head pencil dipped pollen on the branch. The pollination time is from 9:00 to 12:00 in the morning. 15 days after flowering, 12% to 130% of the fruit load of the load was used for fruit thinning. 8 Pest control Early oil peaches are short in greenhouses, and in the cold season, there are fewer diseases. Insect pests mainly include Myzus persicae, Red spider, Peach leaf miner and so on. Control methods: (1) Remove defoliation before the shed, and burn them together. (2) Spray a 0.05% solution once before germination. (3) A solution of 0.067% of diflubenzuron 3 was sprayed once at the initial stage of the peach leafminer. (4) In the middle of May, spray a solution with 0.05% of net death to prevent and control the damage of spider mites. 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