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- W2372202004 abstract "The research applied the national standard method of ammonia nitrogen determination——Nessler's reagent colorimetric method to different depth farmland soil water in Qian Yanzhou,pointed out some problems and excluded interfering factors existing in the determination of ammonia nitrogen.Carried out an profound analysis and experimental verification of experimental water,reagent,experimental condition and sample pre-treatment.By a large number of experimental studies,eliminated each factor of the experimental process that affected the test results finally,defined the best experiment scheme,reached the standard." @default.
- W2372202004 created "2016-06-24" @default.
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- W2372202004 date "2010-01-01" @default.
- W2372202004 modified "2023-09-22" @default.
- W2372202004 title "Discussion on Some Problems Existing in the Determination of Ammonia Nitrogen in Farmland Soil Water" @default.
- W2372202004 hasPublicationYear "2010" @default.
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