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作 者 ：刘峰1;慕卫1;张文吉2;张军3

期 刊 ：植物营养与肥料学报 2003年 9卷 3期 页码：369-372

关键词：钙；水稻立枯病；防治；

Keywords:calcium-containing compound, damping-off, rice, control,

摘 要 ：用CaSO₄、CaCO₃、CaO、CaO₂ 、CaCl₂和Ca(NO₃)₂ 混土处理 ,考察了它们对水稻旱育秧立枯病的防治效果 ,其中CaO和CaO₂对该病具有一定的控制作用。用 0.25%～2%CaO水溶液浸种 48h可以使水稻旱育秧立枯病病苗率减少 40%左右 ,以土重 0.5%～1%的CaO处理土壤也使水稻立枯病的发病率降低 50%。在降低立枯病发病率的同时 ,CaO处理也延缓了水稻立枯病的发展。

Abstract:CaSO₄、CaCO₃、CaO、CaO₂ 、CaCl₂ and Ca(NO₃)₂ mixed in soil affected the incidence rate of damping-off of rice seedling.CaO₂ and CaO were effective in control of this disease. After soaked in 0.25%-2% solutions of oxide calcium for 48-hour, the infected rates of seedling which undergone damping-off were reduced by 40 percent less than the water control. The infected rates of seedling which cultivated in lime treated soil were also half lower than non-treatment. The results showed the above treatments with calcium were relayed the development of rice seedling damping-off.

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