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缓释、控制释放肥料是我们引进郑州工业大学研制并获国家专利（ＺＬ－９５１０９７２０）的产品。此项目是在北京市农业局领导和有关单位的大力支持下，由北京市农业物资供应站组织实施，在北京市腐植酸实验厂完成，工厂建在北京市种子公司良种繁殖场内，设计能力年产控制释放
Slow release, controlled release of fertilizer is our introduction of Zhengzhou University developed and won the national patent (ZL-95109720) products. This project is supported by the leadership of Beijing Municipal Bureau of Agriculture and the relevant units with the support of the Beijing Agricultural Supplies Station to organize the implementation of humic acid laboratory in Beijing completed the plant is located in Beijing Seed Company seed breeding ground design capabilities Annual output control release