早春番茄—夏西瓜—秋菜豆地膜、插架多茬连用的栽培模式实现了土地、地膜、竹架等的合理利用。夏茬小型西瓜密植上架,增加了产量;秋茬菜豆增加土壤中的固氮根瘤菌,提升土壤的肥力;三茬作物轮作,有效缓解了土壤连作障碍。桂林属山地丘陵地区,亚热带气候,年平均降雨量为1 900 mm,全年无霜期300 d(天)左右,平均温度19℃,气候资源和区位优势得天独厚,是广西南菜北运和辐射珠三角地带的蔬菜重点区域,种植的番茄、西瓜等对于调剂市场有着重要的地位(黄金艳等,2016;李念祖等,2016)。当地 Early spring tomato - summer watermelon - autumn bean film, plug the stubble cultivation mode to achieve the rational use of land, mulch, bamboo and so on. Summer stubble small watermelon dense shelves, increasing yield; autumn stubble beans increase nitrogen fixation in soil rhizobium to enhance soil fertility; crop crop rotation, effectively alleviate obstacles to continuous cropping. Guilin is a mountainous and hilly region with a subtropical climate with an average annual rainfall of 1 900 mm. The annual frost-free period is about 300 d (days) with an average temperature of 19 ° C. It is uniquely rich in climatic resources and geographical advantages and is well-known as the north transportation and radiation Pearl River Delta of Guangxi The key vegetable areas in the region, planted tomatoes, watermelon and other swap market has an important position (Huang Yan et al., 2016; Li Nianzu et al., 2016). local