Unverified85% confidenceTradeoffTime unknown
喷叶施用见效快(3-5天可见叶色改善)但持效期短需7-10天补喷;灌根型通过根系吸收,见效慢(10-15天)但持效可达20-30天,适合根系弱、老桩或缓苗期植物
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85%
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Long-term
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