果树和化学药剂攀亲,历史悠久。但近年来,果树与化学药剂又攀了新亲。这些新亲对果树来说算是攀高结贵了。所谓攀高,是把果树生产的标准提高了;所谓结贵,是把果品的“身价”提高,进入“贵族”行列。因此,对他们的攀亲很值得炫耀一番。 果树近年来和化学药剂攀新亲不少,现将往来亲密者介绍几门儿。 一、发枝素,巧扮树形 果农对树形的要求是枝条分布均匀,上下互不重叠,四周匀称,这样才能利于通风透光,提高产量。但果树枝条的生长往往不能尽如人意,就是修剪,也只能剪去重叠枝条,但树冠中有的大空间需要有枝条去占据,却偏偏长不出枝 Climbing trees with fruit trees and chemicals, has a long history. However, in recent years, fruit trees and chemical agents have climbed their new kin. These new kin are high for the fruit trees. The so-called climbing is to raise the standard of fruit production; the so-called knot expensive, is the fruit “worth” to enter the “aristocracy” ranks. Therefore, it is worth showing off to their beloved. In recent years, fruit trees and chemical agents to climb a lot of new pro, now in and out of a few children introduced. First, the hair element, Qiao played tree-shaped fruit tree requirements of the branches are evenly distributed, up and down without overlapping, surrounded by symmetry, so as to facilitate the ventilation and light, increase production. However, the growth of fruit tree branches often can not be satisfactory, that is, pruning, it can only cut off overlapping branches, but some of the canopy in the crown need to have branches to occupy, but why not grow branches