关键词: 玉米纹枯病, 玉米纹枯病, 生物型种衣剂, 酶活性, 诱导抗性

Abstract: The influence of adsorption time, pH, and ion original concentration of lead and cadmium on the ions adsorption with tea waste by single-factor experimental method was studied in this paper, and drew the curve of three influencing factors on adsorption rate and adsorption quantity. The result showed that the absorption rate and absorption quantity with tea waste on the absorption of Pb2+ and Cd2+ are increased with the raising of adsorption time, which get 72.13%、3.56mg/g, 93.75% and 4.69mg/g at last. The adsorption quantity both increased with the raising of concentration of Pb2+ and Cd2+, which get 4.06mg/g and 4.71mg/g , the adsorption rate of Pb2+ reduced but the adsorption rate of Cd2+ increased. The curve of absorption of Pb2+ and Cd2+ first and then decreased with the raising of pH, and the optimum are 5 and 7. The waste tea has good removal efficiency in Pb2+ and Cd2+ in waste water by changing the Pb2+ and Cd2+ ion of the initial concentration, adsorption time and adjusts the solution pH.