Inorganic N analysis of soil extracts by automated and distillation procedures

References

• Bremner , J.M. 1965 . “ Inorganic forms of nitrogen ” . In Methods of soil analysis , Edited by: Black , C.A. 179 – 1237 . Madison , WI : Amer. Soc. Agron. . part 2. Agronomy 9:
   Google Scholar
• O'Brien , J.E. and Fiore , J. 1962 . Ammonium determination by automatic analysis . Wastes Engineering , 33 : 352 – 353 . 377
   Google Scholar
• Weatherburn , M.W. 1967 . Phenol‐hypochlorite reaction for determination of ammonia . Anal. Chem. , 39 : 971 – 974 .
   Web of Science ®Google Scholar
• Harwood , J.E. and Huyser , D.J. 1970 . Some aspects of the phenol‐hypochlorite reaction as applied to ammonia analysis . Water Resour. Res. , 4 : 501 – 515 .
   Google Scholar
• Kopp , J.F. and McKee , G.D. 1978 . Methods for chemical analysis of water and wastes , Cincinnati , OH : EPA Environ. Monitoring and Support Lab . Nitrogen ammonia‐Method 350.1
   Google Scholar
• Kempers , A.J. 1974 . Determination of submicrogram quantities of ammonium and nitrates in soil with phenol, sodium nitroprusside and hypochlorite . Geoderma , 12 : 201 – 206 .
   Web of Science ®Google Scholar
• Dorich , R.A. and Nelson , D.W. 1983 . Direct colorimetric measurement of ammonium in potassium chloride extract of soils . Soil Sci. Soc. Am. J. , 47 : 833 – 836 .
   Web of Science ®Google Scholar
• Huffman , S.A. and Barbarick , K.A. 1981 . Soil nitrate analysis by cadmium reduction . Comm. Soil Sci. Plant Anal. , 12 : 79 – 89 .
   Web of Science ®Google Scholar
• Lowe , R.H. and Hamilton , J. 1967 . Rapid method for determination of nitrate in plant and soil extracts . J. Agric. Food Chem. , 15 : 359 – 361 .
   Web of Science ®Google Scholar
• Lowe , R.H. and Gillespie , M.C. 1975 . An Escherichia coli strain for use in nitrate analysis . J. Agric. Food Chem. , 23 : 783 – 785 .
   PubMed Web of Science ®Google Scholar