1 技术要点1.1 拱棚规格棚宽6～8m,棚中心支柱高1.5m,棚缘边高0.8m,面积333.5m~2左右。建棚应以东西拱向、南北延长为宜。1.2 种植模式两作物种植带宽1m(马铃薯为45cm,萝卜55cm),马铃薯开沟播种,起垄栽培。垄高15cm(作萝卜畦墙),种植马铃薯两行,行间距离15cm。畦内种植萝卜。1.3 整地备播,施足底肥选择地势平坦,土壤肥沃的沙质壤土,深耕25cm,整平耙细,浇水顺畅。拱棚栽培不便追肥,加之两种作物 1 Technical points 1.1 Shed specifications Shed width 6 ~ 8m, Shed central pillar height 1.5m, edge edge of the shed 0.8m, an area of ​​333.5m ~ 2 or so. Building shed should be something to arch, north-south extension is appropriate. 1.2 Planting patterns Two crop planting bandwidth 1m (45cm potato, radish 55cm), potato planting ditches, ridging cultivation. Ridge height 15cm (for radish 畦 wall), planting two lines of potatoes, the distance between the lines 15cm.畦 planted radish. 1.3 Preparation of land preparation, application of adequate fertilizer at the end of flat topography, fertile sandy loam soil, plowing 25cm, leveling rake thin, watering smoothly. Shed cultivation inconvenience dressing, combined with two crops