References
- Allison , F.E. , Doetsch , J.H. and Roller , E.M. 1951 . Ammonium fixation and availability in Harpster clay loam . Soil Sci. , 72 : 187 – 200 .
- Barshad , I. 1950 . The effect of interlayer cations on the expansion of the mica type crystal lattice . American Mineralogist , 35 : 235 – 238 .
- Allison , F.E. , Kefauver , M. and Roller , E.M. 1953 . Ammonium fixation in soils . Soil Sc. Soc. Amer. Proc. , 17 : 107 – 110 .
- Nommik , H. and Vahtras , K. 1982 . “ Retention and fixation of ammonium and ammonia in soils ” . In Nitrogen in Agriculture , Edited by: Stevenson , F.J. 123 – 171 . Madison , WI : American Society of Agronomy .
- Baethgen , W.E. and Alley , M.M. 1987 . Non‐exchangeable ammonium nitrogen contribution to plant available nitrogen . Soil Sci. Soc. Amer. J. , 51 : 110 – 115 .
- Kudeyarov , V.N. 1981 . Mobility of fixed ammonium in soils . Ecol. Bull. (Stockholm) , 33 : 281 – 290 .
- Bouyoucos , G.J. 1962 . Hydrometer method improved for making particle size analysis of soils . Agron. J. , 54 : 464 – 465 .
- Mclean , E.O. 1982 . “ Soil pH and lime requirement ” . In Methods of Soil Analysis , Edited by: Page , A.L. 199 – 224 . Madison , WI : American Society of Agronomy . Part 2
- Nelson , D.W. and Sommers , L.E. 1982 . “ Total carbon, organic carbon, and organic matter ” . In Methods of Soil Analysis , Edited by: Page , A.L. 539 – 579 . Madison , WI : American Society of Agronomy . Part 2
- Jackson , M.L. 1958 . Soil Chemical Analysis , Engelwood Cliffs , NJ : Prentice Hall Inc. .
- Bremner , J.M. and Mulvaney , C.S. 1982 . “ Nitrogen‐Total ” . In Methods of Soil Analysis , Edited by: Page , A.L. 595 – 624 . Madison , WI : American Society of Agronomy . Part 2
- Keeney , D.R. and Nelson , D.W. 1982 . “ Nitrogen‐inorganic forms ” . In Methods of Soil Analysis , Edited by: Page , A.L. 643 – 698 . Madison , WI : American Society of Agronomy . Part 2
- Knudsen , D. , Peterson , G.A. and Pratt , P.F. 1982 . “ Lithium, Sodium, Potassium ” . In Methods of Soil Analysis , Edited by: Page , A.L. 225 – 246 . Madison , WI : American Society of Agronomy . Part 2
- McDole , R.E. and Maxwell , H.B. 1987 . Soil Survey Bulletin No. 656 , Moscow , ID : Idaho Agricultural Experiment Station, University of Idaho College of Agriculture . Appendix A and B
- Beauchamp , E.G. 1982 . Fixed ammonium, release rate and pattern, reciprocal effects of NH4+ and K+ . Commun. Soil Sci. Plant Anal. , 13 (11) : 927 – 943 .