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为了实现甘薯高产，卢龙县在甘薯栽培上采用了小拱棚栽培技术，取得平均亩产3500公斤以上的好收成。其主要栽培技术要点是：一、选地打垄选择地势较平、土层较厚的沙壤土或壤土地进行栽植。早春土壤解冻后及时打垄保墒，垄距分两种形式：一是垄距66厘米，株距40厘米，亩株数250
In order to achieve sweet potato high yield, Lulong County in the cultivation of sweet potatoes using a small shed cultivation techniques, access to an average yield of 3500 kg or more good harvest. The main cultivation techniques are: First, select the ridge to choose flat topography, soil thick sandy loam or loam soil for planting. Early spring soil thaw timely ridge soil moisture, Ridge Ridge divided into two forms: First Ridge 66 cm, plant spacing 40 cm, the number of acres of 250