"Sanyou" Fuji apples are selected Fuji apples with fine stocks, fine varieties, and excellent cultivation techniques. The series of technologies used in the production of “Sanyou†Fuji apples is a new result that has been developed by experts of Hebei Agricultural University after more than 20 years. It has the advantages of early results, easy management, light pests, suitable dense planting, and early high yield.
For the "three excellent" Fuji apple, April entered the flowering period. In this period, we must do a good job in the management of flower cutting, defense frost, sparse buds, sparse pollination, pollination, sowing green manure, pest control and other work.
Too many flowers, cut long fruit branches, remove weak twigs and dense twigs; temperature fluctuations during this period, according to the weather forecast, to advance the tree tray irrigation, canopy spray 1% lime water or smoke Such measures as defense against freezing injury; under normal climate conditions, early sparse flower buds.
During the inflorescence separation period, the remaining lateral flowers and inflorescences were completely removed while retaining the central flower and 1-2 well-developed lateral flowers. Before flowering, put a box of bees or 350 wall bees per acre for insect pollination or artificially assisted pollination for every 5-7 acres of orchard. Before and after the first rain, green manure was sowed between the trees. The dry land was suitable for red clover, and the irrigated land was mainly white clover. Flower bud separation period (Luhong period) leaching spray 43% 43% tebuconazole 40% chlorpyrifos 1000 times + 1500 times liquid Avidin 1500 times + 1500 times to help control powdery mildew, ring pattern Diseases, flower rot, rot and gypsy moths, scale insects, nevus, red and white spiders, etc. The orchard with serious mycotic disease in previous years was sprayed with 70% thiophanate-methyl 1000 times solution or 3% polyoxin 600 times solution + leafy 1000 times solution + assisted 2000 times solution to prevent mold Heart disease has a significant effect.
In May, the “Sanyou†Fuji apple orchard entered the young fruit development and the new tipping time. In this period, it is necessary to do a good job of fruit thinning, summer pruning, calcium supplementation, disease prevention, and selection of fruit bags.
Shuguo begins 7-10 days after the Xiehua. When the central fruit stem is upturned, the annual fruit thinning is generally completed in three parts: the first request is completed as early as possible before May 15th; the second fruit removal is About 20 days after flowering, a fruit should be kept every 20-25 cm according to the principle of spacing and fruit thinning, and about 20% of fruit should be reserved; the third thinning fruit should be carried out before bagging and the fruit should be small and All pests and diseases were eliminated.
Summer pruning mainly includes opening angles, thinning branches, twisting tips, softening branches, ring cutting, girdling, etc. The main function of pruning during this period is to promote flowering. Therefore, the main objects of summer pruning are young trees, Wang trees and Wang branches. .
Fruit bagging is an effective measure for producing green fruits. After setting the fruit, use a double-layer special apple bag. Long-term apple fruit and new shoots, should pay attention to the use of nitrogen, phosphorus, potash fertilizer, and mainly nitrogen fertilizer. Saplings should be properly controlled. The result is that the trees should be suitable for drought, and at the same time, they should pay attention to the prevention of flooding and timely cultivating and weeding.
In May, various pests and diseases began to infest and endangered. The principle of pest control was “prevention and pest control†to minimize the use of pesticides. In order to prevent and treat apple leaf spot deciduous disease, mold heart disease, bitter pit disease, black spot disease and apple ringworm disease, and treat other diseases and insect pests, the effect of pest control in young fruit period has a great influence on fruit quality, so it should be given special attention . Three times before bagging, the drugs were selected as follows: 70% thiophanate-methyl, 80% mancozeb, 10% difenoconazole, 43% tebuconazole, 40 % of chlorpyrifos microcapsules, acetoin salt microemulsion, acetamiprid, true calcium, amino acid calcium, spironolactone, avermectin microemulsion, and the like. Saplings should strengthen the prevention and control of leaf roller insects.
June is the period of young fruit development, spring shoot stoppage, and flower bud differentiation. In this period, we must manage fruit bagging, summer pruning, topdressing, interplanting and weeding.
Bagging starts 45 days after flowering and is completed within half a month. When bagging, it should be operated in accordance with the specification: open the bag, set the bag mouth downwards, hang the young fruit in the center of the bag, do not touch the bag wall, and seal tightly, but the bag corner vent should be opened and the handle should not be damaged. This month is the critical period of flower bud differentiation. To ensure the formation of enough flowers in the year to achieve stable production and high yield, the goal of pruning during this period is to control vegetative growth, promote flower bud differentiation, and improve lighting. Litchi, circumcision, girdling, branching, and thinning are all regulated. Before and after wheat harvest, acupoints were applied with three-element compound fertilizer or potassium sulfate, which was 40-50 kilograms per mu. For weak trees or trees with more fruit, increase the amount of fertilizer. Grass orchard, after the rain Mu topdressing urea 10-15 kg, promote grass growth.
The diseases and pests of this month are mainly ringworm disease, early defoliation disease, rot disease, red-and-white spiders, astragalus, gold-lined moths, and borerworms. Pharmacy selection In the same month as in May, it is best to spray 200 times Bordeaux mixture in an orchard with severe ringworm disease.
Fresh Fruit refers to the edible fruits of plants with juicy and mainly sweet and sour tastes. Fruit not only contains rich vitamin nutrition, and can promote digestion. AGOLYN offers a variety of fruits such as Fresh apples, Fuji apples, kiwi, pears, lemons and so on .
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