山楂树后期(6月以后)管理的目的是提高叶片光合效率,增加果实的体积和重量,提高质量;对大年树和弱树更新复壮,增强树势,保证丰产稳产。管理内容如下: 一、深刨树盘和做畦雨季来临之前,按树冠大小做高埂畦,埂高17～26厘米,以利蓄水,防止水土流失。同时深刨树盘,深度为13～17厘米,采收前后第二次刨树盘,这样可保墒,促进根系生长,这是干旱山区解决缺水问题的重要措施。二、中耕锄草,覆盖树盘雨后要中耕锄草,防止土壤板结,並在树冠下覆盖10厘米后的野草、麦秸、豆秸等。覆盖的好处很多,可以保墒防旱,减少杂草,稳定温度,促进微生物活动,增加有机质含量,改善土壤结构。三、合理施肥在6月中旬至 Hawthorn late (after June) management aims to improve the photosynthetic efficiency of leaves, increase the volume and weight of fruit, improve quality; regeneration and rejuvenation of the trees and weak trees, to enhance the tree vigor and ensure high and stable yield. Management content is as follows: First, the deep planing tree and do 畦 rainy season approaching, according to the size of the crown to do high 埂 埂, 埂 high 17 ~ 26 cm, to facilitate water storage to prevent soil erosion. At the same time, deep planing the tree plate, the depth of 13 to 17 cm, the second planing before and after harvest tree plate, so moisture, promote root growth, which is an important measure to solve the problem of water shortage in arid mountainous areas. Second, weeding hoeing, covering the tree plate after hurricane weeding to prevent soil compaction, and under the canopy cover 10 cm after the weeds, wheat straw, bean stalks and so on. Many benefits of coverage, can moisture moisture drought, reduce weeds, stabilize temperature, promote microbial activity, increase organic matter content, improve soil structure. Third, a reasonable fertilization in mid-June to