论文部分内容阅读
苹果幼树的整形修剪,是培养合理树型的一项技术性较强的工作,对今后果树能否稳产高产起着重要作用。1962年冬,我们曾对全省苹果幼树整形修剪情况进行过调查,并提出了一个技术初步方案,此后,各地的整形修剪工作有了不少改进,基本上克服了过去树形混乱、树冠荒芜的现象。尽管如此,但由于在树体结构和修剪技术上还存在着一些不合理的地方,因此许多果树新梢徒长,主枝直立,树冠郁闭,基部光秃,或到达结果年龄挂果很少,或形成明显的大小年。为此,我们于1964年12月16日至1965年
The plastic pruning of young apple trees is a highly technical work to cultivate a reasonable tree type and plays an important role in whether the fruit trees can produce high yields in the future. In the winter of 1962, we conducted an investigation into the plastic pruning of young apple trees in the province and put forward a preliminary technical plan. Since then, there have been many improvements in plastic pruning work all over the country, basically overcoming the chaos in the past, Barren phenomenon. In spite of this, however, many fruit tree shoots are lengthened, main branches erect, canopy crowns closed, base bare, or fruitless at fruiting or fruiting due to some irrational tree structure and trimming techniques, or The formation of a significant size of the year. For this reason, we are from December 16, 1964 to 1965