基质高温热水消毒戈壁日光温室番茄生长及对青枯病的防治效果

Effects of Matrix High Temperature Hot Water Disinfection on the Growth and Control and Treatment of Bacterial wilt of Tomato in Greenhouses

【目的】研究燃煤式基质（土壤）热水消毒机的基质高温热水消毒，对戈壁日光温室番茄生长的影响及青枯病的防治效果。【方法】测定高温热水消毒处理后戈壁温室基质理化性质，对比分析各生育期番茄生长特性、产量性状、果实品质，生育期调查番茄青枯病病情指数。【结果】通过高温热水消毒使基质20em处温度持续高于50℃达4—6h，可恢复基质功能，减轻青枯病的危害，促进番茄植株生长，提高产量。【结论】基质高温热水消毒处理可有效防治蔬菜青枯病的发生，且促进番茄生长发育。

[ Objective] This experiment aims to study the effect of matrix high temperature hot water disinfection on the tomato growth and bacterial wilt control and treatment in greenhouses based on the matrix （soil） hot water disinfection machine （ coal type）. [ Method ] Determination of the matrix physical and chemi- cal properties, the disease indexes of bacterial wilt, the characteristics of tomato growth in different periods, yield and fruit quality in each treatment after the disinfection of high temperature hot water. And all related factors went through comparative analysis. [ Result ] The disinfection of high temperature hot water made the substrate temperature at 20 cm over 50℃ for 4 to 6 hours continuously could restore the function of the ma- trix, reduce bacterial wilt harm, promote tomato growth, thus increasing the yield. [ Conclusion ] The matrix of high temperature hot water disinfection can effectively prevent and control the occurrence of vegetable bacterial wilt and promote the growth of tomato.