Plastic Pruning Technology Of Dwarf Grape In Greenhouse

By Author: doris zhang
Total Articles: 79
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In order to make the grapes bear fruit many times a year, mature in advance or later, prolong the market supply time and obtain higher economic benefits, the grapes were invited into the protected area from the open field. However, due to the limited growth space of grapes in greenhouse, the quality and yield of grapes are affected. In order to change this situation, the author studied the cultivation technology of Portuguese and Portuguese protected areas, and considered that it is more appropriate to adopt dwarf shaping and pruning technology in the protected areas, which can dwarf the trees, better ventilation and light transmission, improve the quality and increase the yield. Now this shaping and trimming technology is introduced to you for reference.

1.When the bud is 1-3cm long, one plump, large and flat bud shall be left for each bud eye, and the rest shall be erased, which is called wiping bud. When the selected retained buds grow to 4-5 leaves, fixed branches shall be carried out. Two new shoots close to the base shall be selected for culture, and the other branches shall be spared, which is called fixed branches.

2.When ...
... the new shoots grow upward, the auxiliary shoots will grow between each leaf axil. When the auxiliary shoots grow 2-3 leaves, the new shoots grow to 13-l5 leaves,marijuana grow system and for the auxiliary shoots that grow again after picking, leave 3-4 leaves to pick the heart. This is repeated until the leaves do not fall long.

3.When the new shoots of newly planted grapes grow to 30 cm, they should be led and tied in time to prevent wind folding. Use hemp rope, iris or straw to tie the vine firmly, but leave room for the growth of thicker branches. When binding the vine, pinch off the tendrils to prevent cross winding and waste of nutrients.

4.Winter pruning shall be carried out 2 weeks after defoliation and before the soil is buried for cold protection. Pruning in the bleeding period is strictly prohibited. Before pruning, the fruit branch should be separated from the preparatory branch, and the position of the fruit branch should be higher than that of the preparatory branch, so as to achieve the purpose of tree dwarfing. When pruning, leave 0.5-1m long new shoots near the upper edge of the tree, cut off all secondary shoots, and the left part is called fruiting mother branches; After leaving 2-3 buds on the top of the new shoot, the remaining part is cut off, and the remaining part is called preparatory branch.

5.In the spring of the next year, the spike pinching tip is easy to form flower buds at the 5th-9th bud of the fruiting mother branch, and the lower 1-4 buds rarely form flower buds. Even if flower buds are formed, flower spikes should be pinched, and flower spikes are not allowed on the preparatory branch. Once found, they should be pinched, leaving only two new shoots. The pruning of these two new shoots is the same as that of the two new shoots in the first year. Results the fruiting shoots on the mother branch picked their hearts at 7-8 leaves above the panicle 5 days before the formation of the panicle.

Repeat the above methods in the coming year, so as to achieve the purpose of tree dwarfing, shaping and pruning.