Hawthorn tree rejuvenation significantly increased efficiency
Hawthorn is a special economic forest tree species in Chengde City, but most of the existing large trees in the mountain fruit stage were planted in the early 1990s. Not only the whole park has canopy closure, but also the output of the fruit is low, and the management yield is relatively good. It is only about 2000 kilograms, and there are problems with poor quality and low prices. From the tree structure, the existing problems are: 1 more backbone branches, generally there are big branches 8-10, the main branch of the base is densely extruded, and the internal branchlets are dead, resulting in a small area of ​​the tree. 2 years without pruning, poor management under the tree, resulting in debilitating tree vigor, peripheral branches densely crowded, canopy closure, internal empty emptiness, the results of the site outside the shift, flowers full of trees but not much fruit. The composition of the three branches was unreasonable, the structure of the leaf curtain was disordered, the photosynthetic efficiency of the leaves was poor, and the results were severe every other year. 4 Severe rot disease, dead branches, dead branches, diseased branches, poor fruit quality, low economic benefits. In the past three years, we have implemented the road to rejuvenate and rejuvenate the trees in response to the problems existing in the mountains and trees. This has greatly improved the overall production level of Shanshan in our city and achieved the goal of improving quality and efficiency. The main measures for the implementation of the comprehensive supporting technologies for the reduction of crowns and rejuvenation of mountain and trees are: the shape of the tree is mainly composed of 2-4 major branches and a 4-5 main branch. The tree height control In 2.5-2.9 meters, it guarantees high yields and stable yields of hawthorn and big trees year after year, reducing the size and size of the year; trimming winter shears and pruning of the growing season, winter shears focus on shaping, mainly for the selection and pruning of the backbone branches. Summer scissors focus on adjusting the proportion of flowers and fruits, depending on the state of tree vigor, determine the amount of retained fruit. It mainly carries out techniques such as pre-harvest shearing, picking up hearts, and thinning branches to improve the ventilation and light transmission conditions of trees, further promote flower bud differentiation, and improve fruit quality. In addition, we have also promoted standardized and integrated cultivation techniques for non-polluted trees in big mountains and trees. Each year we engage in weeding and weeding once, shave the tree tray 1-3 times, shave every other year, combine autumn base fertilizer with topdressing, and foliar spraying; late August. , to carry out the tree plate covering grass, in the rainy season in the tree canopy projected at four different positions corn silage water storage fertilizer; insecticidal lamp, trap board, scraping bark and other physical and biological control measures to prevent and control hawthorn pests and diseases; Determine a reasonable picking time. Through the tree transformation of the big trees of Hawthorn, the tree vigor has been significantly enhanced and the fruit quality has been significantly improved. The output has been increased from 2000 kg/mu before the transformation to 2978.40 kg/mu, and the price has been raised from RMB 1/kg before transformation to RMB 4/kg. . In the past three years, we have reconstructed a total area of ​​8.28 million mu of trees, providing strong technical support for the development of the mountain and foot industry in Chengde City. Medical Ppe,Surgical Ppe,Medical Protective Coverall,Medical Protective Clothing Taizhou huangyan Yiman industry & trade limited , https://www.yimancoverall.com