Peach tree management technical points
One, pruning 1. Summer Shear: Summer Shearing Period is conducted in June and mid-August. It is mainly to control and use leggy branches and thin stems, remove dead branches, ease tree vigor, cultivate fruiting branches, and shear thinning upper branches. Increase the light in the middle and lower part of the crown to promote flower bud differentiation. The methods include brushing buds, removing sprouts, picking hearts, twisting shoots, short shoots and pulling branches. 2. Winter shear: Peach tree winter shearing is carried out during the dormant period. The young tree winter shearing is mainly for the short-cut of the main branch extension branch, and the left side branch is selected. The first side branch is at a distance of 50-60 centimeters from the main trunk, and the second lateral branch distance is the first. One side of the branch 30-50 cm, lateral branch and main branch angle 50-60 degrees. The winter shear in full fruit period is mainly to maintain the tree vigor, adjust the balance of the main and lateral branch growth potential, update the result branch, adjust the branch amount and the result amount. Second, soil fertilizer management 1, soil management. Including deep hole expansion hole, turning the tree plate, cultivating and mulching, deep plowing and expanding hole combined with autumn basal fertilizer after harvesting the fruit, the depth of 60-80 cm is appropriate. The depth of the tree is about 10 cm, and the depth is up to 20 cm. Weeding and weeding are carried out before weed emergence and seeding, with a depth of 6-10 cm. Plastic film can increase ground temperature, maintain moisture, and inhibit weed growth. 2, fertilization. Generally 150-200 kilograms per 100 kilograms of fruit base fertilizer, topdressing before budding, hard core, preharvest and postharvest, usually 0.4-0.5 kg of nitrogen per 100 kg, phosphorus 0.2-0.3 kg, potassium 0.5-0.7 kg The ratio is 10:6:14. 3, watering. The watering period is generally carried out before budding, after flowering, during hard nucleus stage and before freezing, and watering is prohibited during the flowering period. Third, thinning fruits and vegetables and bagging technology The thinning fruits and vegetables include pre-flower shearing, sparse flower buds and sparse fruit. The pre-flowering shearing is the cutting off of leafless flowering branches and excessive fruiting branches before peach blossoming; the sparse flowering buds are mainly weak flower buds and fruiting branches of the fruiting branches. Only one flower bud is left in the middle and upper section, and 3-4 flower buds are left in the short fruit branch and the bouquet fruit branch; the young fruit is carried out one week after the flower and after the physiological fruit drop. The fruit amount is 3-4 times that of the strain, and the long fruit branch is generally Leave 3-4 fruit, leave 2-3 fruit in middle fruit branch and 1 fruit in short fruit branch. The fruit bagging is carried out after the fruit is set, and the insecticide and fungicide are sprayed before the bagging. Pick the bag 5-6 days before harvest to promote coloring. Fourth, the main pest control 1, before the germination of the whole garden spray once eradication of the drug, kill the flow of glue on the trunk, scab, brown rot, perforation, aphids, red and white spiders, leaf curlers, borers and so on. (1) 45% Schneider 200 times + Kappa 1000 times. (2) Crystals of lime sulfur 30 times + doubling power 1000 times. 2. Before the flower is cured. With 10% imidacloprid powder 2000 times + doubling Granville 1000 times control. 3, 10-15 days of falling flowers, fruit spray 2000 times or stand sterilization 800 times +10% imidacloprid 2000 times + Zhuo Ji 1500 times + Jin Yekang 1000 times + KP 800 to prevent punch disease, scab, fluid glue disease, etc. Diseases and insect pests such as aphids and borers. , 4. In mid-May sprayed carbendazim 800 times + fruitworm net 1500 times + diflubenzuron 3 + paclocarb or fruit lozenge 2000 times or broken shells 1500 times to control turbid fluid, scab (black scab), Hawthorn leaves, mulberry white pods, ball halberds, pears, small borers, peach aphids, peach line leaf miners, stink bugs and so on. 5, June 18 - July 5 spray once again fruit fairy 2000 times + Baoneng Ding 2000 times + insect hand 1500 times or Fuxing 8000 times red and white dying 2000 times Huiyi 2000 times Meilu 800 times + perpetrator 1,000 times the level or 1000 times the expansion rate plus 1000 times times to prevent the flow of plastic gum disease, black spot disease, bad rot, perforation, leaf roller moth, pear small borers, red and white spiders, stink bugs and so on.
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