论文部分内容阅读
一、冬季整枝修剪 ①短截修剪。对象是以长果枝结果的品种。要剪去长果枝顶端的不充实部分,大约剪去枝长的1/3。其中,长势较弱的长果枝要重短截;而长势旺盛,花芽着生部位偏上的长果枝要轻短截。长果枝一般应保留斜生或水平状态的枝,直立枝或下垂枝应疏除;老年树适当留用部分直立枝,中短枝除密生的疏剪外,一般不短截。为了培养更新枝,对生长粗壮直立、光照条件好、着生在侧枝先端的枝,可保留12～15厘米进行短截,作更新枝培养。对结果多年已趋衰老的长枝,短截回缩更新,使其重新抽发生长枝,再形成中、短果枝。②疏删修剪。一般对象是幼树、旺树,疏删后可明显缓和树势,促其提早结果。其中幼树主要疏删
First, the pruning of winter pruning ① short pruning. The object is a variety of fruits with long fruiting branches. To cut off the unfavorable part of the top of the long branch, cut about 1/3 of the branch length. Among them, the growth of weak branches of fruit should be short-cut; and strong growth, flower buds on the part of the branches of the fruit should be short and light cut. Long branches should generally be preserved branches of the ramp or horizontal state, upright or drooping branches should be sparse; old trees appropriate to retain part of the upright branches, in addition to the short branch of the secret sparse shears, generally not short cut. In order to cultivate newer branches, grow thick and erect, light conditions are good, born in the apex of the branch branches, can retain 12 to 15 cm for short cut, for the regeneration of the branch culture. For long-term results have been aging long branches, short cut retract update, so that it re-pumping the growth of branches, and then the formation of short branches. ② sparse pruning. The general object is saplings, Wang trees, sparsely populated can significantly ease the tree vigor, promote its early results. Among them young trees are mainly dilapidated