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对3~4年生劣质、低产幼龄结果桃树,采用多头高接、使用生长延缓剂(多效唑)等技术,第二年即可丰产,第四年达当地高产稳产水平。三年生树改良后第2、3、4年平均株产分别为11.5、28.5、39.3kg;3、4年生树改良后第2、3、4年平均株严分别为16.0、50.8、63.5kg。改良后幼树早期丰产效果显著。
On the 3 to 4 years of poor quality, low yield peach tree results, the use of long high access, the use of growth retardants (paclobutrazol) and other technologies, the second year to high yield, the fourth year reached the local high and stable production level. The annual average tree productivity in the second, third and fourth years after the improvement of three-year-old trees was 11.5, 28.5 and 39.3 kg respectively; and the average strains of the third, fourth and fourth year trees after the improvement were respectively 16.0, 50.8 and 63.5 kg. Improved sapling early yield significant results.