楊樹的扡插時間
楊樹在春季土壤解凍後即可扡插。
楊樹選xuan用yong一yi年nian生sheng扡qian插cha苗miao,以yi一yi級ji苗miao和he二er級ji苗miao中zhong下xia部bu分fen作zuo種zhong條tiao為wei宜yi。三san級ji苗miao發fa育yu不bu健jian全quan不bu能neng作zuo種zhong條tiao二er級ji苗miao,梢shao部bu木mu質zhi化hua程cheng度du差cha的de部bu分fen和he有you病bing蟲chong危wei害hai的de苗miao木mu不bu能neng作zuo種zhong條tiao。

楊樹剪截插穗長16cm-18cm,芽口距1cm,插穗剪好捆成捆浸泡在清水中待插,確保插穗不失水。直插,插穗入土2/3-3/4,注意不要倒插,插後緊土並灌水一次。

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