The frame surface consists of an upright post, a crossbar and six longitudinal lines. The height of the frame is 1.8 ~ 2.m, and the crossbar is 1.6m long. It is erected at the top of the upright post 3cm away from the ground, and there are one steel wire on both sides of the upright post and one steel wire on both sides of the crossbar 35cm and 8cm away from the ground.

This frame is suitable for most fresh grape cultivation, open field and protected cultivation. The first iron wire can be flexibly controlled, which saves labor, mainly controlling the amount of tips left on the frame surface.

Selection basis

1. Conform to local natural conditions, such as the difference between buried and non-buried cold areas in winter.

2. For the corresponding cultivation conditions and investment costs, under the condition of high comprehensive management level of water and fertilizer, pruning with large load should be adopted, otherwise, pruning with small load should be adopted.

3. According to the growth and fruiting characteristics of varieties, varieties with strong growth potential and low fruiting coefficient should adopt larger load; For varieties with weak growth, pruning with small load should be adopted to make the branches and vines cover the frame surface as soon as possible and obtain early high yield.

4. According to the purpose of the fruit, for example, to ensure the quality of wine grapes, the form with small load should be selected.