天气预报 > 健康 > 香椿九月能打顶吗
香椿九月能打顶吗
更新时间: 2021-05-20 22:56:57  

1、香椿打头宜在4月到7月进行,9月打头不合适。

2、摘心不能过早或过迟。因为过早会使侧枝充分长高,不能矮化;过迟,虽能抽生侧枝,但侧枝不易形成顶芽。长势弱的苗木,宜在7月上旬进行摘心;长势强的苗木,宜在7月下旬,并且要重摘。

关键词: 香椿 九月

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