Summary
A rapid procedure is proposed for simultaneous determination of NH4-, NO2-, and NO3-N in field moist samples. The procedure involves extraction, with Morgan's solution followed by determination of NH4-N by Nessler's reagent, NO2-N by α-naphthylamine and sulphanilic acid and NO3-N by phenol-disulphoric acid. The method will suit small laboratories and 50 to 75 samples can be analysed in a day.
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Contribution No. 70. Division of Agricultural Chemicals, I.A.R.I, New Delhi 110012.
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Sahrawat, K.L., Prasad, R. A rapid method for determination of nitrate, nitrite, and ammoniacal nitrogen in soils. Plant Soil 42, 305–308 (1975). https://doi.org/10.1007/BF02186992
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DOI: https://doi.org/10.1007/BF02186992
Keywords
- Nitrogen
- Nitrate
- Nitrite
- Plant Physiology
- Simultaneous Determination