通过盆栽试验、田间小区试验和区域试验,研究烯唑醇种衣剂使用剂量、处理方法对玉米丝黑穗病的防治效果及对玉米生长发育的影响.试验结果表明,用烯唑醇微粉种衣剂1:200～300包衣,可有效防治玉米丝黑穗病.在接种条件下,田间小区防效为51.5%,区域试验平均防效为85.2%,增产11.4%.不同种子处理方法对玉米的安全性依次为干包＞催包＞浸包。

Effects of dose and method of diniconazole ultramicro powdered seed coating chemical to control ef- feet of maize head smut and growth were studied by pot，plot and regional test. The results showed that the seedswere coated by 1：200-300 diniconazole ultramicro powdered chemical can control maize head smut effectivelyWith inoculation condition．the control effect of plot was 51.5％．the average control effect of region was 85.2％Theyield increased by 11.4％The security of different seed treating methods to maize is dry coating>sprout coating>dipcoating.

黑龙江省农科院科技攻关项目(项目编号:2001-01-14)