【作者】 王旭祎； 彭洪江； 高明泉； 韩海波； 张建红；

【Author】 Wang Xuyi,Peng Hongjiang, Gao Mingquan, Han Haibo and Zhang jianhong(Chongqing Fuling institute of Agricultural sciences,Fuling 408000, China)

【机构】 重庆市涪陵区农科所；

【摘要】 1999-2002年,对品种及播期、病菌侵染期、土壤环境及肥料等因素与发病程度的关系进行了试验分析,结果表明,播栽期,病菌侵染期,土壤环境是影响病害程度的主要生态因子。9月中旬播种,苗床期受感染,土壤pH值6.0-6.5,且含水量在50%以上,发病最重。更多还原

【Abstract】 In 1999-2002, relationship between disease extent of Zha Cai root tumour and ecological factors were analysied by multi-plot experiment data. The resuts showed that the sowing date, the pathogeny infection date and soil conditions were the main fators cuus-ing disease of Zha Cai root tumour. The disease of Zha Cai root tumour was serious insowing mid-september, plants in seedling-bad were infected and content of water in soil 50% over and PH-value 6. 0-6. 5. The results provided basis for agricultural control更多还原