Kiwi summer tube control these points
Fertilizer management
Fertilizers should be applied in small quantities several times in summer. In principle, high-level chemical fertilizers should be avoided and ammonium fertilizers should be disabled. In early June, the enlarged fertilizer plant applied 1 kg of three-element compound fertilizer, combined with 0.5 kg of trace element fertilizer, and at the end of July, the excellent fruit fertilizer plant applied 0.5 kg of potash, and the amount of fertilizer applied in the orchard was reduced. The location of fertilization is 80-100 cm from the main trunk and the depth of fertilization is l5-20 cm. Fill with water after each fertilization. After bagging, spray 1:1 times of biogas slurry or amino acid nutrient leaf fertilizer 500 times every 10 days for a total of 3 injections. In case of high temperature and drought, water should be poured before 11am or after 4pm.
Scientific pruning
Mainly in summer shear (except during the period of injury), the year-round pruning of kiwifruit is carried out to increase tree vigor and improve the cold resistance and disease resistance of the tree. Saplings and fruit trees are promoted before and after the control to promote robust growth, expand the canopy, and speed up the formation; the result tree regulates the vegetative growth and reproductive growth of the tree, cuts out the thick sprouts, and the light spot under the canopy accounts for the total projected area of ​​the tree 15 % - 20%, regulate the relationship between nutrient transportation and distribution, achieve a balanced growth and results of the tree potential, prevent the size of the year, make it continue to yield, stable production, high quality and high efficiency.
Orchard sowing grass
The young garden is interplanted with short, shallow root, dwarf, high-efficiency and economic crops, and fruit orchards are sown with sorghum and clover in the rows. Rational use of weeds, mowing of grass to cover tree trays, increase organic matter, improve the orchard's microclimate, reduce irrigation times, and reduce fertilizer use.
Pulled branches
From the beginning of winter pruning to the fruit enlargement period, it is necessary to pull the branches and vines repeatedly, and then repeatedly pull and flatten the resulting branches and vegetative branches, and bind them; the vigorously prosperous skeleton branches are kneaded and softened and then tied, generally tied 1 - 2 ways, tied with a lashing rope to the wire.
Buds topping
According to the growth characteristics of the macaques, we should take early measures to wipe the buds, pick up the hearts at the right time, and cut long branches to cut them several times. In the budding stage, the buds that are improperly positioned or intensively can be wiped off early; for the fruiting branches of mature orchards, 7-9 leaves are picked up above the result area, and the second branch that germinates after the first picking, Leave 3-4 leaves topping. For the third branch of germination left 2-3 pieces of leaf topping, leaving cultivable branches or vegetative branches l0-l2 pieces of leaf topping, the branches and branches of the disease and pests, thin and weak branches removed from the base.
Strict fruit thinning
15 days after flowering, fine fruit thinning was performed 2-3 times before bagging. According to the principle of “retaining excellent and bad, leaving large and small, leaving thin and dense, leaving the middle to the baseâ€, the poorly pollinated round fruit was eliminated. , abnormal fruit or weak fruit, overlapping fruit, disease and fruit. Generally, 4-6 fruit trees are kept in long fruit branches, 2-3 fruit trees are in fruit trees, and 1 fruit is left in short fruit branches. In the Shengguo period of 3 meters and 4 meters, there are no more than 400 single plants in the fruiting period, and in the full fruiting period of 2 meters and 3 meters, the number of fruit per plant is less than 200, and the amount of fruit left in the young garden is reduced.
Fruit bagging
A 1216 cm single-layer paper bag is generally used. Bagging time should be timely bagging according to the different mature varieties, generally from late June to early August. Strictly set the fruit before bagging and spray 1 high-efficiency insecticide and calcium fertilizer.
Pest control
Based on the prevention and control of agriculture, protect natural enemies, comprehensively use physical, biological and chemical control measures, use pesticides of pollution-free botanical sources, biological sources, and minerals, and cannot use highly toxic and high-residue pesticides that are prohibited by the state, and prohibit the use of bulking agents. To encourage orchard installation of insecticidal lamps, predation of predators, enticements, traps, etc. to prevent and control harmful organisms, reduce the use of pesticides, and ensure the quality and safety of fruits. 6-8 months after bagging can be sprayed 80% of Dasheng M45 WP 800 times or 50% thiophanate-methyl 600-800 times or 1% of Zhongshengmyin water 200 times, focusing on soft control Rot, brown spot, etc.
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