Abstract：Input of trace elements Fe and Zn in the lower reach of Liaohe Plain under different fertilization systems was studied by long-term field experiment and ICP-AES analysis. The results showed that Fe and Zn were mainly from organic manure in agro-ecosystem. The residual rate of organic manure through a feeding-composting cycle in the absence of bedding materials was 21.84%, which was lower than that of organic matter fertilized to soil after one year. The recycling rate of Zn through a feeding-composting cycle was 71.9%, and the recycling rate of Fe was 81.0%.
Key words：Long-term field experiment;Fe;Zn;Residual rate;Recycling rate
宇万太，马 强*，周 桦 . 利用ICP-AES测定农田生态系统微量元素Fe和Zn的循环率 [J]. 光谱学与光谱分析, 2010, 30(12): 3410-3412.
YU Wan-tai, MA Qiang*, ZHOU Hua . The Recycling Rate of Trace Element Fe and Zn in Agro-Ecosystem Using ICP-AES . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(12): 3410-3412.
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