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甘薯黑斑病是引起窖藏期烂薯的主要原因。我区常年因黑斑病造成的损失约在30％左右。随着高温大屋窖的推广,窖藏期的黑斑病基本上得到了控制。但在家庭承包责任制普及后,用高温大屋窖贮藏甘薯的就逐年减少,急需一种适于分户贮藏技术。为此我区试验、示范、推广了用托布津浸种后再贮藏的办法,效果很好。1983年秋,全区有14万多农户用此方法,共浸薯1.5亿斤,1984年出窖时抽样调查,病薯率仅1—7％,损失率更低。操作简便每处理100斤薯块只花7分钱,便于推广。
Sweet potato black spot disease is the main reason causing the bad potatoes in the cellar period. My area perennial black spot disease caused about 30% loss. With the popularization of high-temperature large house cellar, the black-spot disease in the cellar period has basically been controlled. However, after the popularization of family contract responsibility system, the use of high-temperature large house cellar storage of sweet potato decreased year by year, an urgent need for a household storage technology. To this end I test, demonstration, promotion of soaking with Topaz and then storage method, the effect is very good. In the autumn of 1983, more than 140,000 peasants in this region used this method to soak 150 million jin of potato chips in total. When sampling the cellars in 1984, the disease rate was only 1-7% and the loss rate was even lower. Easy to handle Every 100 pounds of potato chips spent only 7 cents, easy to promote.