Detailed Explanation of Key Techniques for Grape Bonsai Cultivation
In recent years, with the continuous improvement of people's living conditions, in order to beautify the living environment, while the demand for potted flowers has surged, people are also quite interested in potted fruit trees. Potted grape is a cultivation method in which people use flower pots, baskets, boxes and other containers to grow grapes. Let's learn about grape bonsai cultivation techniques together below.
Seedling raising and planting
Stem cuttings are commonly used for propagation. Cut robust one-year-old branches with plump buds, cut into single-bud or double-bud cuttings about 5-15cm long, and insert them into pots in February at a spacing of 15cm×50cm. However, in regions with hot climates, the grafting method can be chosen, grafting the plant onto a rootstock with strong resistance.
Fertilizer and water management
Grapes require large amounts of nutrients. In the early stage, nitrogen fertilizer is the main type, and after entering the fruiting stage, phosphorus and potassium fertilizers are increased accordingly. Topdressing is applied before bud sprouting, before flowering, and during the fruit enlargement stage. In the early stage, nitrogen fertilizer is the main type to promote vine growth and flower cluster development. During the fruit enlargement stage, phosphorus and potassium fertilizers are added to improve quality. Foliar topdressing with 0.3% urea and 0.2% monopotassium phosphate can promote fruit enlargement and ripening.
Training and pruning
When grapes have grown for a period of time and the vines spread out, it is recommended to set up a trellis or wind them outdoors to facilitate ventilation and light penetration, reduce disease, and reduce sunburn damage to leaves and fruit from ground radiation. Alternatively, prune the grape vines. During the growing season, try not to prune, so as to avoid cutting off buds and affecting grape growth. Pruning is generally carried out after leaf fall in winter. Long canes retain 8-12 nodes, medium canes retain 5-7 nodes, and short canes retain 3-1 nodes. During summer sprouting, appropriate pruning can also be done. Before flowering, remove excess flower clusters, keep large ones and remove small ones, and keep strong ones and remove weak ones.