以大棚辣椒越夏一大茬栽培为对照,调查分析了北京市延庆区5种大棚种植模式的蔬菜产量与经济效益.结果表明:与对照相比,5种种植模式的蔬菜产量和经济效益均有不同程度的提高,且投入产出比均明显高于对照,具有较好的推广前景.其中番茄—紫菜豆、结球莴苣—小西瓜—甘蓝和番茄—芹菜这3种种植模式茬口安排科学合理,可优先进行推广;小西瓜—小西瓜和芹菜—芹菜这2种种植模式需要注意合理轮作,不可连续种植.%The yields and economic benefits of 5 different greenhouse planting patterns in Yanqing District of Beijing were investigated taking the common pepper large crop over-summer cultivation as the contrast.The results showed that the yields and economic benefits of these 5 planting patterns were all improved in different extents than the contrast.Moreover,the input-output ratios were significantly higher than that of the contrast.Therefore,these 5 planting patterns had good prospects for promotion.Among the 5 planting patterns,3 patterns of tomato-violet bean,Lettuce-small watermelon-cabbage,and tomato-celery were arranged scientificly and reasonablly,they could be firstly extended.Two planting patterns of small watermelon-small watermelon,and celery-celery needed more attention for reasonable crop rotation and avoid successive cropping.
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