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PP_(333)又名“多效唑”。它是一种高效低毒的生长延缓剂。使用 PP_(333)有减少延长枝的延长生产,缩短节间长度,促进侧芽萌发,增加短枝数量,促进花芽形成,提高座果率,增加产量等作用。现将应用试验报告如下。一、试验与方法在赭埠果园选10年生国光50株,株行距4×4米,树冠郁闭。于1991年封冻前
PP_ (333) aka “Paclobutrazol”. It is a highly efficient and low toxicity growth retardants. The use of PP_ (333) has the effect of reducing the prolongation of prolongation of shoot growth, shortening the internode length, promoting the germination of lateral buds, increasing the number of short shoots, promoting the formation of flower buds, increasing the fruit set rate and increasing the yield. Now the application test report is as follows. First, the test and methods In Occud Orchard selected 10-year Guoguang 50, line spacing 4 × 4 meters, crown closed. Before freezing in 1991