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设计０、０．００１、０．０１、０．１、１、５、１０ｍｍｏｌ／Ｌ７种浓度，研究了Ｃｕ、Ｆｅ、Ｚｎ、Ｂ４种微量元素对水稻白叶枯病（Ｘａｎｔｈｏｍｏｎａｓｏ－ｒｙｚａｅｐｖ．ｏｒｙｘａｅ，简称（Ｘｏｏ）生长的影响，结果表明：不同微量元素在不同浓度对Ｘｏｏ生长具有不同的影响效果。Ｃｕ抑制效果最强，在０．１ｍｍｏｌ／Ｌ时即有较强的抑制作用。５ｍｍｏｌ／Ｌ时完全抑制Ｘｏ的生长；其次为Ｆｅ、在０．１和１ｍｍｏｌ／Ｌ时，只对Ｘｏ的生长后期有抑制作用，对生长初期有些刺激作用，但到５ｍｍｏｌ／Ｌ时则有很好的抑制效果；再次为Ｚｎ，在１和５ｍｍｏｌ／Ｌ时，只对Ｘｏ的生长初期略有抑制作用，对生长后期有些刺激作用，高达１０ｍｍｏｌ／Ｌ时才表现明显的抑制作用；Ｂ在低浓度时对Ｘｏ的生长无影响，而在５和１０ｍｍｏｌ／Ｌ时则表现为刺激作用。
The effects of trace elements Cu, Fe, Zn and B on the susceptibility of rice bacterial blight (Xanthomonas-ryzaepv. Oryxae, (Xoo) .The results showed that different trace elements have different effects on the growth of Xoo at different concentrations.Cu had the strongest inhibitory effect, and had a strong inhibitory effect at 0.1mmol / L. 5mmol / L Completely inhibited the growth of Xo; followed by Fe, only inhibited the growth of Xo at 0.1 and 1 mmol / L, but stimulated the growth of Xo at the early stage, but inhibited to the extent of 5 mmol / L Effect; again Zn, at 1 and 5mmol / L, only a slight inhibition of the growth of Xo at the beginning of the growth period of some stimulating effect, up to 10mmol / L showed significant inhibition; B at low concentrations of Xo’s growth without a shadow , And 5 in 10mmol / L when expressed as the stimulation.