On April 20th, many greenhouse peaches had just begun to colorize, and Yao Yuyu, a family farm in Fei County, Dajia, had sold out. What is even more amazing is that in his greenhouse of 2 acres of land, he was still planting small saplings in March last year. It took only 13 months to sell peaches this year, and the yield per mu was as high as 3,000 kg. What's the trick here? Experts from the fruit innovation team of Shandong Province, the person in charge of the fruit and vegetable video network, and Xu Mingju, a senior agronomist at the Fei County Fruit Industry Administration, discovered that Yao Yu's greenhouse peaches are both Y-shaped and suitable for vegetable dumping. Early results, early high-yield, early benefits, of course, make peach farmers envy, Yao Yuyu's fine management is worth learning. å•¥ is "Y" shape "Y" shape, also known as the two main branches naturally happy shape. Peach trees are wide (row spacing 4 to 5 meters) dense planting (plant spacing of 1.5 to 2.0 meters), it is the most suitable tree shape, and wide row close planting, but also easy to mechanized operation. The "Y" shape tree requires less backbone branches, leaving only 2 to be selected. The crown is well ventilated and light-transmissive and suitable for dense planting. The result of the tree body is the result of the branch and the resulting branches. Since it is a dense plant, it is generally not cultivated. Large-scale branch and lateral branch, all kinds of branches directly on the main branch, distributed around the main branch, mainly on both sides. After forming, the entire tree can produce 60 to 80 branches of varying sizes. The height of the tree is 2.5m to 3.0m; the angle between the two main branches is 50 to 60 degrees, which is convenient for mechanized operation. Nutrition cup seedlings Yao Yu has a large shed inside. In 2015, he planted summer squash. The squash will not be picked until April. In the squash of the squash, Yao Yuyu will plant 200 seedlings in the nutrition cup. When he picked the zucchini in April, he transplanted it again. When transplanted, seedlings have grown to about 40 centimeters, which is 30 days faster than land peaches. Keep up with pruning In the young period of peach trees, Yao Youyu had to promote the rapid growth of the lateral buds of the main branch and reasonably control the branch ratio. When Yao Yuyu was planted, the row spacing was controlled between 1.5 and 2.04 to 5 meters. In order to make full use of space, he also adjusted the spacing of the original species of zucchini: spacing 3.6 meters, spacing 1 meter; fixed height 40 centimeters, to ensure that there are 2 to 3 good buds in the 20 centimeters above the marrying interface. After germination, he had to wipe off the grafting interface in a timely manner to concentrate nutrients for the buds to germinate. When the branches grow to 30cm ~ 50cm, the seedlings begin to sprout axillary shoots. At this time, two main branches should be selected and the spacing between main branches should be staggered by more than 10 cm, and the rest should be cut off. The remaining two main shoots were cultured in a rapid, trunk-shaped manner. Where is the management When the second branch on the main branch grows to 20 cm to 30 cm, Yao Yuyu selects 3 to 5 branches that grow vigorously to be picked up and the remaining branches are softened to make them horizontal or slightly droop. If the growth of new shoots is excessively prosperous, spray 150 times paclobutrazol in late July and spray it once more every other week to control the shoot growth and promote flower bud formation. Since the buds of peach trees are precocious, a large number of flower buds are formed on the secondary shoots on the center stem. When pruning in winter, you have to go to Wangliu Zhuang and go straight to stay oblique. Weed out the branches whose base thickness is more than 1/3 of the center dry thickness, and most of them are oblique branches with a moderate dormancy. The length is 30cm to 50cm, and the thickness is 0.5cm to 0.6cm. Both of them are long-distanced and long shoots are used. Trim way. The two main branches are not short cut, and no side branch is left in the top 40cm range, leaving the bud bud cutting at the base, which is the uniaxial extension of the main branch. What to do in the initial result period In the second year after colonization, peach trees started to enter the initial result period. At this time, strong main branches need to be cultivated to increase the amount of branches to lay a good foundation for the next year's high yield; appropriate use of some fruit branches results in increased yield; late growth (after June) to control the growth of lateral branches, the key to solve the main branch On the competition branches. The two main branches left in the tree are the key to the success of tree training. To maintain the advantages of the main branch, it is necessary to control the thickness of the raw branches born in the center. The ratio of the thickness of the lateral branches to the thickness of the central stem of the implantation site was controlled to be 1/6 to 1/3. If the lateral branches are thickened too quickly, they should be sparsely washed during the growing season. The point of attention is that the main branch must be properly selected to retain the back branch for handling and branching. In the case of ensuring that the crown does not close and the branches do not overlap, the limited space should be used as much as possible to promote the germination and formation of lateral branches. The rate of germination of peach trees is high, and Yao Yuyu is mainly a mediocre branch with good cultivation results and less vigorous growth potential. In the middle and late May, when the new shoot grows to 10cm to 15cm, it is sprayed with paclobutrazol 200 times. In mid-late and late July and mid-late July, each time it sprays paclobutrazol 150 times, it can't be sprayed in regions where thin mountainous areas are not prosperous or where rainfall is low. Growth inhibitors. Special attention should be paid to the fact that paclobutrazol can only be sprayed on the lateral branches and the main branch can not be sprayed on the extension branches. Fruit tree period In the third year after planting, peach trees entered the full fruit period. At this stage, we must maintain the strengths of the two main branches; balance the center and the resulting branches, and the treetops at the top and bottom. Specific measures include adjusting the balance between the stem and lateral branches and the upper and lower parts of the canopy. After entering the fruit period, the peach tree yield can reach 3,000-4,000 kg/mu, equivalent to 60-80 kg. Only by ensuring the absolute advantage of the main branch can the tree load such a large amount of output. The ratio of the thickness of the control side shoots to the center dryness ratio of the implantation site was 1/3 to 1/5. At the late fruit stage, the crown is prone to "stronger and weaker" phenomenon. This requires the upper part to be evacuated and excessively sprayed, locally sprayed with growth inhibitors, promotes the upper part of the fruit, reduces the upper pressure, and weakens the upper part. Tree vigor. Peach trees have a strong growth potential. New shoots have a large annual growth, and the crowns are easy to seal. Therefore, to strengthen summer pruning, lateral branches should be controlled at 30cm ~ 60cm, about 0.6cm thick branches, so that their buds full, mature branches completely, become the second year of reliable results. 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