Hemp walnut trees have good transplant effect in late autumn
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First, the choice of varieties For Hemp, the selection of fine varieties is the most important. The wrong choice, grafting and then grafting, labor and financial injury. At present, the market is more recognized as the species of lion nest head lion head, white lion head, big cap, tiger head king.
Second, planting period selection Ma Ma walnut planting spring and autumn planting two. The spring in the north is prone to drought. Hemp walnut roots have a slower wound healing. The roots are rather late and they are better for autumn. In the early autumn, the young trees grow vigorously, and the finished trees that have been grafted for 3 to 4 years can have 1% to 20% of the output in the coming year. This means that the trees will be planted in the autumn. In less than a year, some of the investment can be recovered. Better return. The specific time of autumn planting is before the defoliation and before the soil is frozen (that is, from October to November); during the spring planting period, the local soil is just thawed and planted as early as possible, generally from late March to late April. Through the author's many years of cultivation experience, planting before leaves is better than planting after leaves, and the survival rate is high.
3. Prune the finished tree for 2 to 4 years before planting. Make necessary trimming before and after transplanting. In the case of maintaining the original tree shape, remove the branches and branches of the diseased and injured, and perform the thinning or cutting of the branches below the second level. More growth branches and sprouting strong branches, leaving more female flower buds, leaving less male flower buds, leaving more than oblique branch, leaving no weeping branches. The amount of trimming is 30% to 60% of the canopy.
Root pruning should maintain the balance between the root and the crown of the tree, and the tree root system should be kept long, and the small tree root system should be kept short. Cut off the roots, roots, and roots that are too long when pruning. Don't cut the mouth and cut the skin, do not leave fur coats. When cutting large and thick roots with a diameter of 2 cm or more, cut them with a knife and apply a preservative. Before planting, use “water-retaining agent†to root the roots, and you can also draw materials locally. Use red clay and fresh cow dung to make up 40% to 60% of the paste liquid, and pour it on the roots with a ladle. When each tree is watered after planting, 50-200 grams of “rooting treasure†is applied to promote new root growth.
Fourth, the choice of garden and planting density and method Hemp walnut tree deep rooted, like the loose and breathable soil environment, so the election site must be selected when building a deep soil, fertile soil, groundwater level of 2 meters below the plot. Planting areas on plains or slopes should be leveled and matured to prevent alkalis and floods. The terraces should be repaired in the mountains. For those places where the terrain is complex and where the terraces cannot be built temporarily, the fish scale pits can be repaired first, then the tree plates can be gradually enlarged and finally the double terraced fields can be completed. The wild oysters and wild walnuts that grew on the mountain can be fixed and grafted directly.
Plant the pit before planting the tree and separate the surface from the ground floor. The minimum height of the pit is not less than 8080 cm. When trees are planted, each tree uses 25 to 50 kilograms of pig manure, filled in the bottom layer, mixed with the topsoil, and then filled with the bottom soil. After full irrigation, the trees are put into the pits, and the original traces of the trees are grown. Put 5 centimeters of burial water on the top, and pour water every 5 to 7 days, and pour it 3 times. Before freezing on the soil, surround the tree stump soil 30 to 50 cm and pour the frozen water before pouring the soil.
Closely planted. The lion head and lion head breeds are tall and robust. They can be planted at a spacing of 54 meters or 64 meters. The white lion heads and the official hats are small in size and compact in shape. They can be spaced 43 meters apart. Or 53 meters planted.
Fifth, the winter management of Hemp walnut trees is a good winter. Under normal circumstances, if there is no pest or disease, frostbite will not die.
In order to prevent drought in winter and spring, a frozen water is poured in early autumn and early winter. After snowing in winter, clean up the snow at the neck and branches. For those budding in the year, because of the short growing time, the degree of lignification of the buds is low, and the ability of anti-freezing and anti-extraction is poor. To avoid drawing in winter and spring, 107 parts of glue and 5 times of water can be used to smear the grafted parts and shoots and shoots. Shandong Tianda 2116 can also be sprayed 1 or 3 times. Do not use mechanical antifreeze to prevent burns and shoots.
VI. Pest Control Before planting trees, check if there is a "root cancer" disease in the roots and stems of Hemp walnut trees. Symptoms are red nodules in the rhizomes, soft texture, smooth surface, dark brown spherical or flattened carcinoma after stalk enlargement, lignification and firmness. Rough or uneven surface. In addition, root rot is the main disease of Hemp walnut trees. Control methods are: First, increase organic fertilizer; Second, reasonable pruning; Third, combined with open trench fertilizer, irrigation 500 times liquid copper sulfate, or lime sulfur, or 75% chloronitrobenzene 800 times, each Tree irrigation 50 to 75 kg.