1, the framework of potted grapes
The frame of potted grapes can be determined according to the specific environment and personal hobbies, and the shapes can also be varied. For example, in spacious places such as roofs and balconies, small scaffolding and hedges can be used, which can be fan-shaped or ridge-shaped.
2. Plastic pruning of potted grapes
When pruning in winter, except the extended branches, other branches should be mainly short branches. Pruning needs to be more delicate in summer, and the growth potential of the secondary branches of hanging fruit trees is often weak. We should pick off or leave 2~3 leaves as soon as possible for repeated coring, and the amount of fruit left on the branches is generally 1 branch, 1 ear. If the proportion of fruit branches in the whole plant is small, you can choose strong fruit branches and leave 2 ears.
3. Irrigation and fertilization of potted grapes
Water 1 time before germination in spring, or 1 day 2~3 days after germination, and sometimes water twice in high temperature in summer. Don't water around noon. After the fruit matures, the irrigation frequency should be gradually reduced, and it should be watered 1 double water for 3~5 days near the dormancy period.
Nitrogen fertilizer and compound fertilizer can be applied in the germination stage, and it is appropriate to use it for about 10 day/time. After fruit setting, the application rate of phosphorus and potassium fertilizer should be increased, and it should be applied on 10~ 15 days 1 time. If chemical fertilizer is used, it is appropriate to use 5g per plant. Plant ash can increase the dosage. After the fruit is ripe, topdressing can be stopped to promote the ripening of berries and shoots. The base fertilizer should be mainly organic fertilizer, and compound fertilizer or diammonium phosphate can be added.
Step 4 change the pot
With the growth of plants, the amount of soil in small containers will no longer meet the needs of plant growth and fruiting, so the pots should be changed twice within 2~3 years after cultivation.