Scientific Publication

A rapid method for determination of nitrate, nitrite, and ammoniacal nitrogen in soils

author(s) Sahrawat, K L - Prasad, R
from International Crops Research Institute for the Semi-Arid Tropics (ICRISAT)
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Sahrawat, K L and Prasad, R (1975) A rapid method for determination of nitrate, nitrite, and ammoniacal nitrogen in soils. Plant and Soil, 42 (1). pp. 305-308

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Abstract

A rapid procedure is proposed for simultaneous determination of NH4-, NO~-, 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 x-naphthylamine and sulphanilic acid and NOa-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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