蘋(píng)果樹(shù)落葉后,幼齡樹(shù)應(yīng)對(duì)樹(shù)盤(pán)進(jìn)行樹(shù)干基部培土,防止基部根系受凍。還可對(duì)樹(shù)干基部及主枝涂一層生石灰水,使之形成一層保護(hù)膜,封閉氣孔,預(yù)防“抽條”。進(jìn)入休眠期后,病菌的抗性減弱,而果樹(shù)的抗性開(kāi)始增強(qiáng),因此休眠期用藥很有 (共 225 字) [閱讀本文] >>
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 蘋(píng)果樹(shù)落葉后,幼齡樹(shù)應(yīng)對(duì)樹(shù)盤(pán)進(jìn)行樹(shù)干基部培土,防止基部根系受凍。還可對(duì)樹(shù)干基部及主枝涂一層生石灰水,使之形成一層保護(hù)膜,封閉氣孔,預(yù)防“抽條”。進(jìn)入休眠期后,病菌的抗性減弱,而果樹(shù)的抗性開(kāi)始增強(qiáng),因此休眠期用藥很有 (共 225 字) [閱讀本文] >>