主干形果树如何“落头”内容摘要:
2、目标。 由于栽植密度较大,主干形要求中干比较直,如果中干不直,就会影响到相邻的果树。 造成整园的造形失败。 主干形如果落头开心的话,生长中心旁落,落头处容易形成大枝,势必影响中干的绝对势力,影响中干的垂直性,破坏树形,破坏树势。 对于主干形来说,一般落头的目的是解决树体太高,作业不便的问题,而不是解决个体密闭的问题,所以我们建议,落头之后再留头,这样就基本可以保证中干的势力。 同时树头还能起到调节整个树体。 势力的作用,牵制横向枝不要生长过长、过强。 树势过旺时,通过树头分流过多养分,保证树势均衡,稳定成花结果。 具体做法上,根据树势情况进行,不宜落头太急,可分年逐步进行。 先在树头上找到合适的部位进行落头,并留下带头枝,下一年再在更低的地方落头。 依此类推,通过 2,将树体高度降下来。 宜落头,应根据实际情况,通过促花措施,使其大量成花结果后,树势缓和下来,再进行落头。 先调整好树势,使上部生长缓和下来,下部复壮后再进行落头。 免对果树刺激过大,影响树势平衡,影响成花结果。 专利查询。主干形果树如何“落头”
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