论文部分内容阅读
研究明确了清除田间病残体、春季推迟留母茎并控制其生长期限、改进施药技巧、有机肥秋季深施和隔畦留沟推土等单项和综合配套应用技术；经１９９０和１９９１两年在该病流行区（１３８．３亩）防治示范应用，７月份调查病秆率控制在１～２．５％，对照为６８％；病情指数为０．２５～１．００，对照为４３．２５，防治效果明显。两年度的平均产量分别达１３１３和１４３０ｋｇ／亩（６６６．６ｍ２），比对照增产３倍以上。上述关键防病技术，经在富阳、金华两县（市）近万亩芦笋田大面积推广应用后，亦取得良好的防病增产效果，使两县（市）在１９８９年遭茎枯病流行毁灭后的芦笋生产，又得到恢复和发展
The study identified a clear removal of the disease in the field, postponed to stay in spring stem and control their growth period, improve the application skills, organic fertilizer autumn and deep septuages ditch ditch ditch ditch soil and other single and comprehensive application of technology; 1990 and 1991 two Year in the epidemic area (138.3 acres) prevention and control of the demonstration application, in July the survey disease stalks rate control in 1 ~ 2.5%, control was 68%; disease index was 0.25 to 1.00, the control was 43 .25, prevention and treatment effect is obvious. The average annual output of the two years reached 1313 and 1430 kg / mu (666.6 m2), respectively, more than three times more than the control. The key disease prevention technologies mentioned above have also achieved good effect of preventing diseases and increasing yield after popularizing and applying as many as ten thousand mu of asparagus field in Fuyang and Jinhua counties (cities) so that the two counties (cities) were hit by the stem blight in 1989 After the destruction of asparagus production, but also to be restored and developed