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沙田柚幼树枝梢较直立,在本地一般树龄5~6年时才试花投产。为使沙田柚幼树树冠开张,枝梢量增加,以便提早投产,我们在遂宁市市中区粮食原种场白马分场以1988年8月定植的400株长寿沙田柚苗为试材进行了本试验。随机抽取50株作对照,其余分别在1989、1990年对内膛抽生的早夏梢、夏梢和早秋梢于其停止伸长10天内(5月下旬、6月下旬、8月下旬)进行捏压处理。即右手握住新梢中下部,用左手食指和拇指从下往上用力捏压,使新梢角
Shatianyu jujube shoots more upright, the local general age of 5 to 6 years before the trial put into operation. In order to make the canopy of Shatianyu saplings open and the amount of shoots increased in order to put into operation earlier, we conducted 400 seedlings of 400 long-lived Shatin pomelo seedlings planted in August 1988 in the Baiyuan Sub-branch of Grain Farms in Suizhong City, This test. 50 plants were randomly selected as the control, and the rest were carried out on the early summer shoots, summer shoots and early autumn shoots of the borer in 1989 and 1990, respectively, within 10 days after their elongation was stopped (late May, late June, late August) Pinch pressure treatment. That is, the right hand holding the lower tip of the shoot, with the left index finger and thumb from the bottom up hard pinch pressure so that the new shoot corner