论文部分内容阅读
枸杞主要以果实入药,我省栽培较多,为了培养主杆明显、枝杆繁茂的高产树型,整形修剪十分重要。一、整形幼龄枸杞的整形需要5-6年时间,分三个阶段。 1.剪枝定干:定植当年春季,在幼树高约60厘米处,剪去顶部(坡地适当低些),并选留3-5个长10-20厘米的强壮侧枝,确定主干和树冠的骨干枝。 2.培养基层:定植后第二、三、四年,分别在上年的每个骨干枝上选3-5个徒长枝,于30厘米处剪口,以延长骨干枝。经过这三年培养,使树冠不断增高、扩大、充实,第四年树高约120厘米,冠幅120-150厘米。 3.放顶成型:第五、六年要使树体高160厘米左右,上层冠幅约150厘米,下层冠
Medlar mainly medicine into the drug, my province more cultivation, in order to cultivate the main pole obvious, lush branches of high-yielding tree, plastic trim is very important. First, shaping young Chinese wolfberry plastic surgery needs 5-6 years, divided into three stages. 1. Pruning fixed: planting the spring of that year, about 60 cm tall in the saplings, cut off the top (sloping lower appropriate), and choose to stay 3-5 strong 10-20 cm long side branches to determine the trunk and crown The backbone of the branch. 2. Cultivation of grass-roots level: the second, third and fourth year after planting, respectively, in each of the last year on the selection of 3-5 branches of the main branches, at 30 cm at the cut, to extend the backbone branches. After these three years of training, the crown continuously increased, expanded and enriched. In the fourth year, the height of the tree was about 120 cm and the crown width was 120-150 cm. 3. Top molding: the fifth and six years to make the tree height of about 160 cm, the upper crown about 150 cm, the lower crown