陕西省小麦全蚀病发生分布及短期轮作防治效果  

Distribution of take-all disease of wheat in Shaanxi province & controlling effect of short rotation

作　　者：王保通[1] 冯小军 商鸿生[1] 高照良[1] 李强[1] 王文彦 李高宝[1] 王芳[1] 

机构地区：[1]西北农林科技大学 植保资源与病虫害治理教育部重点开放实验室,陕西杨凌712100 [2]陕西省植保植检站,陕西西安710000 [3]大荔县植保植检站,陕西大荔715100

出　　处：《西北农林科技大学学报（自然科学版）》2006年第3期98-102,共5页Journal of Northwest A&F University(Natural Science Edition)

基　　金：国家"十五"科技攻关项目(2001BA509B03);陕西省科技攻关项目(2003K02-G10-01);西北农林科技大学"创新团队建设计划"

摘　　要：通过大量试验调查,分析了陕西省小麦全蚀病发生分布情况,并将其划分为4个不同区域:渭北旱塬老病区、洛河渭河滩灌溉地新病区、秦岭北麓早塬轻发病区和关中西部灌区零星病区,研究了轮作倒茬年限、轮作作物种类等对小麦全蚀病的控制作用。结果表明,不同种类作物轮作后对小麦全蚀病的控制效果不同,以非禾本科蔬菜类作物轮作效果最佳;轮作1年对小麦全蚀病有很好的控制效果,之后控制效果逐年降低。并提出了“1+1”短期轮作防治小麦全蚀病的技术措施,经推广后对小麦全蚀病白穗率的控制效果达95％以上,轮作后小麦全蚀病白穗率由85％降低至3％-5％。The distribution of take all disease in Guanzhong region of Shaanxi province had been assured through surveies, which had been divided into four different regions.Weibei old diseased area,new diseased irrigated area,north-Qinling mountain diseased area,western Guanzhong diseased irrigated area. Rotation periods and crops for rotation had been detected to control the take-all disease. The results showed that non-gramineous vegetables were the best rotation crops ;and the best effect is in the first rotation year,the method ,＂1＋ 1 short rotation＂ to control take all disease was suggested to control the take all disease,by which controlling effect of white head incidence could reach above 95% after extending. The white head incidence of take-all disease of wheat decreased from 85% to 3%--5% after rotation.

关 键 词：小麦令蚀病 短期轮作 防治效果 

分 类 号：S435.121[农业科学—农业昆虫与害虫防治]