Fertilization combined with soil deep turning for base fertilizer, and base fertilizer with organic fertilizer. According to walnut yield, site conditions, tree nutrients fertilization. Fertilizer should pay attention to the fertilizer and soil mix, can not be directly piled in the pit.
After watering and fertilizing, it is necessary to pour water once in a timely manner, which is beneficial to the absorption of base fertilizer and accelerate the decomposition of fertilizer. On the 10th of November or so, it is necessary to pour over the winter water. When the topsoil is half dry, the rhizomes will be painted white and the trunks will be painted white. Walnuts are hi wet, resistant to waterlogging, weak in drought resistance, and watering is an effective measure to increase production.
Trimming is best done after the autumn fruit is harvested and before the leaves are yellowed. It should not be trimmed one month after the fall of the leaves and near the bud before cutting. It is mainly pruning the big branches, removing the dense branches, pests and branches, shading branches and back branches, and back. Shrinking branches. Other prunings should wait until the second year before budding.
Pest control The main pests and diseases of walnut trees include walnut rot, walnut branch blight, walnut canker, cloud bengal, walnut limb moth, walnut leaf armor, walnut borer, and scale insects. Autumn and winter are the best time to prevent and treat pests and diseases. The principle of “prevention as the mainstay and comprehensive prevention and treatment†should be adopted. The prevention and control of the occurrence of specific pests and diseases in the walnut garden should be conducted in a timely manner to reduce the sources of pests and diseases.
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