2017年兴安盟甜菜褐斑病防治试验结果分析

Analysis on Control Results of Fungicides on Sugarbeet Cercospora Spot in Hinggan League in 2017

为筛选出防治兴安盟地区甜菜褐斑病效果较好的药剂极其适合剂量,采用田间小区试验方法,使用37%苯醚甲环唑、40%氟硅唑在2个时期对甜菜品种HI0479进行叶面喷施.通过对褐斑病发病情况调查及块根产量和含糖比较得出:37%苯醚甲环唑300 g/hm2和40%氟硅唑180 mL/hm2防治效果最好,防治效果分别为78.06%和75.53%,产量增加4.57%和7.33%,含糖率增加0.27%和0.08%,产糖量增加6.27%和7.84%.推荐其在生产中使用.

To select better fungicide for the control of sugar beet cercospora spot ,the experiment which was done in one of the main production area in Hinggan League, Horqin Right Wing Front Banner was taken the method of field pots and was used 37% diphenoxazole , 40% fluosilazole robine to foliar spray for HI0479 at two stages. Through the survey of prevalence situation and the comparison between production and sugar content, the result showed 37% diphenoxazole(300g/hm^2) and 40% fluosilazole robine( 180ml/hm^2 ) had the better control effects for bactericide. The effects were 78. 06% and 75. 53%,the yield increased 4. 57% and 7. 33%,the sugar yield rate increased 0. 27% and 0. 08%, sugar production increased 6. 27% and 7. 84%. They could be used in the production.