In apple dwarf cultivation management, we must follow the growth characteristics of dwarf apple trees, adopt reasonable technical measures, and artificially create suitable environmental conditions to give full play to the advantages of dwarf apple cultivation. First, the rational close planting of dwarfed apple trees must be based on different dwarfing rootstocks and different types of short-stemmed varieties for proper close planting. At the same time, when planting dwarf apple trees, we must also consider the conditions of the soil. In short, the planting density should be reasonably determined according to the actual situation. Second, a reasonable and appropriate to improve the dry position, so that the height of the trunk is maintained at 80-100 cm. For those undersized trunks that have already formed, if possible, cut off the main branch below the first layer and increase the trunk height. It is also possible to pull the rope from the surrounding branches downwards or support them with wooden sticks. After one summer, the branches can be restored to the ideal angle. Some competing branches and leggy branches can also be eliminated, so that the ventilation and light transmission conditions can be improved. Third, reasonable pruning dwarf dense planting apple trees planting density, tree growth space is limited, should take a variety of measures to improve light conditions, enhance leaf photosynthetic efficiency. Therefore, the shape of the pruning should adopt the shape of free spindle, elongated spindle or modified spindle. Regardless of the type of tree, the size of the crown must be reasonably controlled during pruning. Do not extend the main branch of the tree too fast so as not to affect the growth potential of the center. Fourth, reasonable control of the load to control the load, in addition to the winter when cutting off the dense fruit branches, flowers before flowering bunches of flowers, fruit thinning, strict control of the amount of fruit left is the most effective technical measures. 5. Appropriate supply of fertilizer-water dwarf apple trees In order to achieve the goals of both early fruit production and high yield, but also to maintain a reasonable tree size and good tree shape, we must ensure a reasonable supply of fertilizer and water. Sapling period should increase fertilizer and water, promote tree growth; enter the initial fruit period after appropriate control of fertilizer and water, use cutting, stripping, pulling, twisting and other measures to promote flowering, can be more appropriate fruit, fruit pressure crown, control prosperous In the fruit period, the tree should adjust the fertilizer and water according to the amount of fruit to be fruited, fruit quality, tree vigor and so on, in order to achieve stable, high-quality and high-efficiency cultivation goals. Specifically, the farmer can be applied once a year or every other year in the spring and autumn season. The chicken, duck, and geese are the best, followed by sheep manure and farmhouse manure. When applying chemical fertilizers, do not apply nitrogenous fertilizers in a partial manner. Nitrogen, phosphorus, and potassium fertilizers can be mixed thoroughly and applied in a proportioned manner. The content of various nutrients in the orchard soil is different, the growth condition of the tree and the color of the leaves are different. The amount of each fertilizer should be adjusted according to the growth potential of the tree, the color of the leaves, the load of the fruit and the actual active ingredient content of each fertilizer. . VI. Renewing the apple dwarf trees in a reasonable manner must pay special attention to the timely updating and rejuvenation of the apple dwarf trees. Grasp the ratio of the result branches to the vegetative branches and reasonably adjust the tree vigor to balance them. It is necessary to maintain the growth advantage of the center and delay it. Aging causes the economic life of the tree to be extended. 7. Reasonably regulate the establishment of apple bases in most of the parks in arid and semi-arid regions. It is necessary to improve the survival rate of one-time colonization by Apple to reach the same age and the same size of trees in the whole park. On the one hand, it is necessary to improve the quality of seedlings and the quality of soil preparation, and choose branches. Three-year-old high-quality strong seedlings were planted to build a planting hole in advance of a rainy season. After backfilling, the soil and fertilizer in the ditch was fully submerged, and precipitation and water were collected. On the other hand, good post-planting management was conducted, timely and fully watered. The root system is in close contact with the soil, absorbs water from the soil as soon as possible, and maintains seedlings and soil moisture through methods such as burying, coating, and coating. In addition, in order to improve the orchard's regularity, a certain number of seedlings of the same specifications must be kept as seedlings when planting, and they should be planted between plants to prepare for replanting. Precision Ultrasonic Metal Welding Machine Titanium Welding Machine,Laser Welding Machine For Stainless Steel,Brass Welding Machine,Gas Metal Arc Welding Machine Dongguan Jinwang Ultrasonic Equipment Co.,Ltd , https://www.jwultrasonic.com