1, short branch pruning: leave 2-3 buds; 2. Pruning the middle tip: leave 4-5 buds; 3. Pruning long branches: leave 6-7 buds; 4. Ultra-short branch pruning: leave 1 bud; 5. Pruning extra-long branches: leave more than 8 buds; 6. Mixed pruning: on the same plant, the pruning method of combining long, medium and short branches is adopted at the same time.
In addition, it is very important to correctly identify and select the fruiting mother branch when cutting in winter. The criteria for high-quality fruiting mother branches of Fujiminori grape are: dark purple color, luster, diameter 1- 1.2 cm, nearly round branches, developed xylem, thick nodes, tortuous extension, thick internodes, full bud eyes, compact scales, as few pith as possible, dense tissues and no pests. In particular, strong flat branches and twigs that should not be left should be cut off in principle.
Fertilization should make Fujiminori grape with high yield, large grain and high quality. Base fertilizer should be applied every year. Good fertilizer and water conditions are the nutritional guarantee for Fujiminori grape big fruit cultivation. When applying fertilizer, some tiny roots are cut off, which plays a role in repairing roots and promoting new growth, so that a large number of nutrients in the soil are absorbed in the early spring of the following year. Applying base fertilizer can generally open ditches (holes) on both sides of the boundary. The ditch (hole) is 40 cm deep and 40 cm wide. Each mu is filled with 3000-5000 kg of high-quality farm manure, 50-/0/00 kg of calcium superphosphate or calcium magnesium phosphate, 2 kg of borax 1-2 kg, and 25 kg of hydrated lime, and then the bottom of the ditch (hole) is filled with fine soil, and then covered with soil. Fertilizing as soon as possible can be beneficial to the recovery of tree potential and improve the accumulation of organic nutrients in trees.
When clearing the garden in winter, the diseased branches and leaves cut in winter will be cleaned together with the dead leaves, burned or buried centrally. At the temperature of 10℃, the branches and the ground were sprayed with 1% sodium pentachlorophenol solution to thoroughly disinfect the germs remaining on the branches and the ground.
Anti-freezing Fujiminori grapes in Huaibei area will be frozen in winter, so pay attention to anti-freezing. Therefore, irrigation should be done in time before the arrival of severe cold, and straw, wheat straw and weeds should be covered at the same time to keep the soil loose and moist and improve the cold resistance.