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近几年,我省李树生产发展很快,但产量普遍较低,果品质量较差,影响栽培李树的经济收入。因此,在加强肥水管理的基础上,认真地进行整形修剪,是目前李树生产的关键措施。李树的整形方式多采用疏散分层形和自然开心形。疏散分层形的树体结构是:树高2～3米,干高30～40厘米,全树有主枝5～6个,层间距离30～50厘米,每个主枝上选留两三个侧枝,第一侧校距主干30厘米左右。整形的具体步骤是:定植当年在距地面50～60厘米处剪截定干,第二年在剪口下选留两三个方位好、生长健壮的新梢作主枝,并将各主枝和中心干于饱满芽处短截,促其延长生长。其他枝缓放。第三年在中心干上再选留两三个主枝,要求与下层主枝错落分布。同时在下层主枝上选留侧枝。对
In recent years, Li Shu production in our province developed rapidly, but generally lower yields, poor quality of fruit, affecting the economic income of planting Li Shu. Therefore, on the basis of strengthening fertilizer and water management, earnestly pruning is the key measure for the production of Li Shu. Li Shu plastic surgery and more use of layered layered and natural happy shape. The structure of the evacuated delaminated tree is 2 to 3 meters in height and 30 to 40 cm in height. There are 5 to 6 main branches and 30 to 50 cm between layers, Three side branches, the first side of the school about 30 cm away from the trunk. The specific steps of plastic surgery are as follows: In the year 50 to 60 centimeters above the ground, cut and set the stem to dry, the second year to choose to leave two or three at the cutting edge, and to grow robust new shoots as the main branch, And the center dried stem full bud at the short cut, prompting its growth. Other branches slow release. In the third year, two or three main branches will be re-elected in the center to require the distribution of the main branches of the lower branches. At the same time choose to stay in the lower branch of the main branch. Correct