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在苹果栽培中,环剥是一项有效的促花措施。但环剥技术掌握不好,会造成树势衰弱甚至死树。 1.环剥时间 为提高坐果率在初花期环剥的做法,对树势影响太重,不应提倡;为促进花芽形成,增加翌年产量,环剥时间以5月25日至6月5日效果最佳。 2.环剥死树、死枝现象 (1)环剥口太宽,剥后一个月内剥口不能愈合,就有死枝、死树危险了。适当的做法是剥口宽不超过环剥部位直径的1/10,无论直径多么大,剥口不超过1cm;对于1个月仍不愈合的剥口,要及时在愈
In apple cultivation, girdling is an effective flower blooming measure. However, girdling technology is not good, will cause the tree is weak or even dead trees. 1. Girdling time to improve the rate of fruit set in the first flowering ring girdling practice, the impact on the tree potential too heavy, should not be promoted; in order to promote the formation of flower buds to increase production the following year, girdling time to May 25 to June 5 Best effect. 2. Rizhao dead tree, dead branches phenomenon (1) ring peeling is too wide, stripping within a month after peeling can not heal, there are dead branches, dead trees are dangerous. Appropriate approach is not more than a stripping widening girdle diameter of 1/10, no matter how big the diameter of the incision does not exceed 1cm; for 1 month is still healing of the incision, in a timely manner in the more