(1) The pruning of single vine with double hedgerows adopts north-south direction, double rows with planting, and hedges are erected along the columns with column facilities. Double row strip planting, that is, the plant spacing is 0.5 meters, the small row spacing is 0.5 meters, and the large row spacing is 2.0 meters to 2.5 meters, generally in the row spacing. The new shoots of two rows of grapes grow obliquely outward, the lower part is 0.5 m wide and the upper part is 1.0 m ~ 1.5 m wide, forming a double hedge. The process of shaping is: after the seedlings are planted, when the new shoots grow to about 20 cm, each grape leaves a new shoot to cultivate the main vine, that is, single vine shaping, leaving about 1.5 m after defoliation, and entering the dormant period management. After germination, 5-6 new branches are left on each vine to bear fruit, and one spare branch is left 30-50 cm from the ground, and the upper part is shrunk to spare after bearing fruit. If no reserve branches are left, the main vines can be shrunk to 30 cm ~ 50 cm from the ground in time after fruit harvesting to promote the germination of latent buds and cultivate new main vines as the fruiting mother branches in the coming year. The retraction time of the main vine should not be later than the first ten days of June, so as to avoid germination too late and poor differentiation of new shoots. New buds grow until early and middle August, and new buds are picked to promote the maturity of branches and vines. After defoliation, cut off1.5m.. The main vine from 30 cm to 50 cm above the ground has not moved for many years, but the upper part is updated 1 time every year.

(2) The pruning of long shoots of single vine in shed adopts double-row strip planting in the north-south direction, with plant spacing of 0.5m, small row spacing of 0.5m and large row spacing of 2.5m. Each grape has 65,438+0 single vines. When the main vines of two rows of grapes grow to 65,438+0.5 m ~ 65,438+0.8 m, they grow horizontally to both sides, and the main vines between large row spacing are connected to form a shed. The shaping process is: after germination, leave 1 fruiting branches on the main vine on the horizontal shelf surface at intervals of about 20 cm, and the fruiting branches are evenly distributed on the shelf surface. At the same time, 1 spare branches are selected at the corner of the main fence frame. After the fruit of the previous fruiting branch is harvested, it is retracted to the preparatory branch, and the preparatory branch is used as the mother branch for the next year to cultivate new elongated vines, and good ventilation and light transmission conditions are maintained. That is to say, the hedge frame part has not moved for many years, and the shed frame part is updated 1 time every year. This shaping method only has the advantages of good effect, moderate growth potential of new shoots and good lighting conditions.

(3) Trunk shape and natural fan shape shaping and pruning are not planted once a year, and the fruiting branches are not updated once a year, so the trunk shape and natural fan shape can be shaped by planting sheds in the east-west direction. Plant spacing is 50 cm ~ 80 cm, row spacing is 5 m ~ 6 m, about 300 plants are planted every 667 m, and hedges can also be used for natural fan-shaped and horizontal pruning.

The shed was trimmed into the shape of a dragon's nose. Pay attention to keep the shelf surface 50 cm away from the plastic mold, and plant fruiting branches on the main vine. The spacing of bearing branches on the same side shall not be less than 30 cm, and about 12 bearing branches shall be left per meter of frame surface.