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本文用对比分析研究方法,分析了辽宁省盘锦地区“牛一稻”、“猪-气-菜、稻”、“鸡-猪-鱼、稻”、“稻-萍-蟹”立体农业和单作稻等5种类型的农户生产结构的经济投入产出、能量投入产出和稻田养分平衡及物质转化。结果表明:单作稻经济效益和能量转换率最低;“牛-稻”生产结构的稻田土壤库中氮磷钾盈余最多;“猪-气-菜、稻”、“鸡-猪-鱼、稻”生产结构饲料转化率较高;“稻-萍-蟹”立体农业经济投入最大,效益最高。
In this paper, comparative analysis of research methods, analysis of Panjin in Liaoning Province, “cattle a rice”, “pig - gas - vegetables, rice,” “chicken - pig - fish, rice,” “rice - Ping - crab” For the five types of farmers such as rice production structure of economic input and output, energy input and output and rice nutrient balance and material conversion. The results showed that the economic efficiency and energy conversion rate of single-cropping rice was the lowest; the surplus of NPK in paddy soil of “cattle-rice” production structure was the largest; “pig-gas-vegetable, rice”, “chicken-pig-fish, ”Production structure feed conversion rate is higher;“ rice - Ping - crab ”three-dimensional agriculture, the largest economy, the highest efficiency.