马铃薯环腐病近几年来在我县危害严重,并有扩大蔓延的趋势。它是一种细菌性病害,菌体虽能在地下越冬致病,但发病率很低,因此,土壤带菌不是初次侵染循环的主要来源,主要来源是切种薯时借助切刀侵染的。为此,1973年我们在兴隆公社段沟生产队进行了马铃薯整薯播种试验,效果很好,现简报于后: 整薯播种试验面积1亩,留种田土质为壤土,麦茬,亩施基肥土粪6,000斤,隔犁播种,行距1.5尺,株距7寸。苗期破板结一次,现蕾期中耕培土一 In recent years, potato ring rot has been seriously endangered in our county and has the tendency of expanding and spreading. It is a bacterial disease, although the bacteria in the ground overwintering pathogenic disease, but the incidence is very low, therefore, soil infection is not the primary source of the initial infection cycle, the main source is when cutting seed potato infected with a knife . To this end, in 1973 we Xinglong commune ditch production team conducted a potato whole potato sowing test, the effect is very good, are now briefed later: whole potato sowing test area of ​​1 mu, leaving the farming soil loam soil, stubble, mushiji base soil Dung 6,000 pounds, seeding after seeding, row spacing 1.5 feet, spacing 7 inches. Seedling break once knot, budding period cultivated soil one