题目内容

一般观赏南瓜的侧蔓最多留3-4条,留3条最佳,若是有特殊栽培需求,则根据需要进行整枝打蔓、留侧蔓。一般两蔓整枝,两蔓方向一致,互不干扰,平行生长,利于充分接受阳光、通风。

A. 对
B. 错

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