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以桃仙镇农业生态系统为研究对象，运用系统分析方法，着重对农田子系统和畜牧业子系统6年的能流结构作了比较全面的分析与总结。结果表明：全系统的能量产投比为1．65。农田的光能利用率低于1％，在光能利用上潜力极大；第一性生产的人工辅助能主要依赖于系统外输入；主要畜禽的饲料能量转化率在10％～20％之间。在以上研究的基础上，提出了桃仙镇农业持续发展的调控对策。
Taking Taoxian Agricultural Ecosystem as the research object and using the method of systematic analysis, this paper mainly analyzes and summarizes the six-year energy flow structure of farmland subsystem and livestock husbandry subsystem. The results show that: the system-wide energy production ratio is 1.65. The utilization of light energy in farmland is less than 1%, and there is great potential in the utilization of light energy. The artificial auxiliary of primary production can mainly depend on the input outside the system. The conversion rate of feed energy of main livestock and poultry is between 10% and 20% between. Based on the above research, the paper puts forward the control measures for the sustainable development of agriculture in Taoxian Town.