2, budding the best time in mid-May to late June. At this time, the temperature and humidity conditions are suitable, anvil, spike are growing vigorously, after the healing tissue is easy to form, bud sprouting growth, lignification is high, is conducive to the safety of the winter.
3, walnut tree grafting in late March to early April. The first collection of scion, in mid-March in the bud is about to sprout, the collection of strong growth, no pests and diseases of 1 year-old branches for scion, after picking varieties of wet sand storage, in early April to walnut rootstock bud sprouting began grafting. The rootstock requires a roughness of about 1.5cm, 10cm from the ground for grafting.