How to Scientifically Cultivate and Manage Walnut Trees? Detailed Explanation of Key Technical Points
1. Site selection and planting: Walnuts are suitable for growing in warm areas with deep soil layers and good drainage on sandy loam and black loam soils, and are best planted on sunny slopes and in sheltered locations. Newly planted young trees need sufficient water and fertilizer, and should be sprayed with New High Lipid Film, which can ensure above-ground moisture evaporation, seedling moisture transpiration, isolate pests and diseases, shorten the seedling recovery period, and accelerate root development.
2. Training and pruning: To make walnuts bear fruit earlier, achieve high and stable yields, proper training and pruning is a very important cultivation technique. The pruning period for walnuts differs from that of general fruit trees; it should be carried out after fruit harvest and before the leaves turn yellow. Apply wound-healing and antiseptic film promptly to the pruning cuts to promote wound healing and prevent invasion and infection by pathogens.
3. Stabilizing flowers and setting fruit: During the flower bud stage, young fruit stage, and fruit expansion stage, spray Zhuangguodiling to thicken the fruit stalk, increase nutrient transport, prevent flower drop, improve pollination capacity, increase fruit set rate, accelerate expansion speed, and ensure high-quality and high-yield fruit. The alternate bearing of the tree causes an imbalance in the tree's load, which affects both balanced returns and orchard tree health. During the annual flower bud differentiation period, brush Culhuawang No. 2 around the trunk once, which can promote flower bud differentiation, suppress excessive summer shoot growth, strengthen flowers, and improve pollination capacity and fruit set rate.
4. The main pests of walnuts include: walnut tussock moth, walnut limb borer, and walnut fruit weevil. The main diseases of walnuts include: walnut black spot disease and walnut branch blight. Control measures include spraying targeted pesticides for elimination. At the same time, spray the tree with Hushu Jiangjun, and spray the orchard with New High Lipid Film to retain heat and moisture, ensuring safe overwintering.