Grapevine pruning method

One, "1,3,6,9-12" pruning method

The meaning of the pruning method is that, on the scaffolding surface, there are 3 result branch groups per 1 meter long vine, leaving 6 result mother branches, leaving a total of 9 to 12 buds. The dragon vine extension tip generally stays at the middle of the tip, retracts each year, and leaves one extension point from the back. In garden cultivation, the amount of buds is usually a little more, but it does not exceed 15 buds, ie, "1, 3, 6, 9 to 15".

Second, "1,2, 1" pruning method

This law applies to longan, milk and other varieties. Horizontal scaffolding, dry plastic dragon alone, hole distance 1 to 1.5 meters, 2 to 3 per hole, every 50 to 60 centimeters on the surface of a dragon vines, single branches alternately updated. The meaning of this law is that on the scaffolding surface, 2 short shoots (1 to 2 knots) and 1 mid shoot are left in each 1 meter long dragon vine. There are 2 dragons per 1 meter wide shelf, 14 to 20 buds equivalent to 1 square meter, equivalent to 120,000 to 180,000 buds per hectare. In semi-arid areas, there is sufficient light, grape branches are not easy to grow long, summer pruning is strictly controlled, and flower buds in buds at the base are often well-differentiated. Generally weighing more than 0.5 kg per panicle, it can guarantee production per hectare in 30,000 to 37,500 kg. This pruning method is more suitable for the young result tree.

Third, the pruning of fruit trees

The fruit tree is generally referred to as a 13 to 40-year-old tree. The amount of fruit in the tree increases year by year, and the vegetative growth gradually weakens. Therefore, the main task of pruning is to regulate the relationship between growth and results, improve lighting conditions, maintain strong tree vigor, and obtain high and stable yields.

Four, aging tree pruning

Tree ages 30 to 40 years old have entered the aging period. The main task of pruning is to update rejuvenation, restore tree vigor, maximize the number of years of results, and maintain a better yield. During specific operations, the main and lateral branches should be appropriately retracted and elevated according to their degree of weakness. If the central branch has decayed, it is necessary to saw it from the base and change the canopy to a happy shape, but care should be taken to protect the wound so as to prevent decay. For the aging tree, it is necessary to make full use of the leggy branches to cultivate new branches and branches. At the same time, the original branches should be rejuvenated, and the dense flower buds should be properly removed to ensure the vigorous growth of the branches.

V. Flowering before cutting

From mid-March to early April, when the flowers are cut in the winter, the buds are left unrecognisable when they are cut in winter. When the flower buds can be clearly identified, the unnecessary branches without flowers need to be properly removed. Or retreat, so that the internal light is sufficient. Trees with poor cultivar varieties can be highly seeded when the sap begins to flow.