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研究结果表明,玉米密度、行向、起垄方式和甘薯品种对甘薯产量存在着极显著的相互作用。上茬玉米采取高密度(>3000株/亩)时,东西行向有利于甘薯高产;反之,则以南北行向为宜。玉米大行间薯地的光、温条件以行间中心为最优,甘薯对起垄方式和行间小气候的适应性因品种而异,迟熟长蔓型品种适宜于大垄双株种植,而早熟短蔓型品种则适宜于双垄单株种植.
The results showed that there was a very significant interaction between sweet potato yield and corn density, heading, ridge pattern and sweet potato varieties. The previous crop of corn to take high-density (> 3000 / mu), the east-west line is conducive to high-yield sweet potato; the other hand, it is advisable to north-south line. The light and temperature conditions of potato land in maize line are the best among the intercropping centers. The adaptability of sweet potato to ridge pattern and intercropping microclimate varies with different varieties. Late-maturing and long-winged varieties are suitable for double- The premature varieties of short braid is suitable for single planting double ridge.