本文以生态系统的观点,对浙江省鄞县两个自然条件相同的生产单位(新乐良种场和新乐大队四队)的农业生产结构及稻田养分平衡作了初步探讨,并估算了能量的转化效率。这两个单位都位于平原水网地区,在浙江省具有一定的代表性。调查分析证明,农业生产单位只有建立合理的农业生产结构,保持农田生态平衡,才能使农业生产持续稳步上升。 In this article, from the viewpoint of ecosystem, the agricultural production structure and the nutrient balance in paddy fields of two production units with the same natural conditions in Xinxian County, Zhejiang Province (Xinleliang Seedling Farm and Xinle Brigade 4 teams) were discussed. The energy conversion effectiveness. Both of these units are located in the plain water network area and have a certain representation in Zhejiang Province. Investigation and analysis prove that agricultural production units can only maintain a steady and steady increase in agricultural production if they establish a reasonable structure of agricultural production and maintain the ecological balance of farmland.