论文部分内容阅读
近年来芦笋栽培面积呈上升趋势。随着栽植年数增加,土壤病原菌累积,芦笋病害逐年加重。芦笋病害主要有病原性病害和生理性病害两类。病原性病害常见的有茎枯病、根腐病、褐斑病、锈病、立枯病、白绢病等6种,其中危害最大,可导致芦笋全田毁灭的是茎枯病、根腐病和锈病。生理性病害有枯梢病等。由于芦笋是多年生作物,一年投资多年收益,病害肆虐蔓延往往造成难以弥补的损失,因此种植芦笋必须加强对病害的综合防治。1.采用良种,播前消毒处理目前引种 UC-157、UC-800、玛丽华盛顿、500W、MW500、MW 等芦笋品种,产量品质俱佳,但都不抗茎枯病,所以应加强选育抗病品种。播前对种子消毒,用60℃热水浸种30分钟,用70%甲基托布津1000倍液或50%多菌灵700倍液浸种24小时,可以有效杀死病菌。
In recent years, asparagus cultivation area is on the rise. With the increase of planting years, the accumulation of soil pathogenic bacteria, asparagus disease increased year by year. Asparagus disease mainly pathogenic diseases and physiological diseases are two types. Pathogenic diseases common stem blight, root rot, brown spot, rust, blight, sclerotlum and other 6 species, of which the most harmful, can cause asparagus field destruction is the stem blight, root rot And rust. Physiological diseases are blight and so on. As asparagus is a perennial crop, a year of investment income for many years, the spread of disease often lead to irreparable damage, so planting asparagus must strengthen the comprehensive prevention and treatment of diseases. 1. The use of seeds, sowing before disinfection At present, the introduction of UC-157, UC-800, Mary Washington, 500W, MW500, MW and other varieties of asparagus, yield and quality are good, but not resistant to stem blight, Sick breed. Seed sowing before sowing, soaking in hot water at 60 ℃ for 30 minutes, with 70% thiophanate-methyl 1000 times or 50% carbendazim 700 times soaking for 24 hours, can effectively kill bacteria.