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对于多效唑的施用效果,各地都有报道,施用方法多为土施或叶面喷施。但在土壤盐碱、土质粘重或果园有机质含量高的园片,土施又有一部分被固定的可能;采用叶面喷施又受大风、干旱、阴雨等气象条件的制约。为此,根据多效唑可被植物组织吸收运转和能在树干中贮存再利用的特点,我们于1989年开始试行树干打孔埋药和树干涂药环法施用,克服了土壤、气候等限制因素,收到了较好的控冠促果效果。具体作法是:
For the effect of paclobutrazol has been reported around the application methods are mostly soil or foliar spray. However, in the salinity of soils, soil stickiness or organic matter with high content of orchard in the park, soil facilities and some may be fixed possible; the use of foliar spray and by gale, drought, rain and other weather conditions constraints. Therefore, according to the characteristics of paclobutrazol which can be absorbed by plant tissues and stored and reused in tree trunks, we started to pilot the application of trunk drilling and tree trunk coating in 1989 to overcome the limiting factors such as soil and climate, Received a better control crown promote fruit. The specific approach is: