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通过硝酸盐与硫酸亚铁、钙离子与草酸铵的反应 ,完善矿质肥料定性鉴定体系 ,改善实验的准确性 ,对提高实验教学质量也是十分有意义的。
Through the reaction between nitrate and ferrous sulfate, calcium ion and ammonium oxalate, the qualitative identification system of mineral fertilizers is improved, and the accuracy of experiments is improved, which is also significant to improve the quality of experimental teaching.