Native fixed ammonium nitrogen and fixation of added ammonium nitrogen were studied in soil profile samples of three Libyan soils. The availability of both forms of fixed ammonium N to barley seedlings was investigated using surface soil samples under pot culture.
All soils contained native fixed ammonium N which ranged from 9.26 to 10.36 mg/100 g soil. Fixation of added ammonium N was of the order of 5.10 mg/100 g for surface soils and 5.26 mg/100g for sub-surface soils. Fixation increased with profile depth.
It was found that 38 percent of the soil total fixed ammonium N and 70 percent of the soil KOBr extractable N were available to barley seedlings. An equation representing the uptake of N from these two sources was established and their contribution to plant content of N was calculated.
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Allison, A. E., Kefauver, M. and Roller, E. M. 1953 Ammonium fixation in soils. Soil Sci. Soc. Am. Proc.17, 107–110.
Bakheit Said, M. 1973 Ammonium fixation in the Sudan Gezira soil. Plant and Soil38, 9–16.
Balba, A. M. and Shabanah, M. R. 1971 Efficiency of different nitrogen forms as tested by barley seedlings. Soil Sci. Soc. Am. Proc.35, 598–600.
Black, A. S. and Waring, S. A. 1972 Ammonium fixation and availability in some cereal producing soils in Queensland. Aust. J. Soil Res.10, 197–207.
Bouyoucos, G. J. 1927 The hydrometer as a new method for the mechanical analysis of soils. Soil Sci.23, 343–353.
Bremner, J. M. 1959 Determination of fixed ammonium in soil. J. Agric. Sci.52, 147–160.
David, T. M. and Yoshinori Kanehiro 1968 Native fixed ammonium in Hawaiian soils. Soil Sci. Soc. Am. Proc.32, 481–484.
Dhariwal, A. P. S. and Stevenson F. J. 1959 Determination of fixed ammonium in soils. Soil Sci.86, 343–349.
Feigin, A. and Yaalon, D. H. 1974 Non-exchangeable ammonium in soils of Israel and its relation to clay and parent material. J. Soil Sci.25, 384–397.
Hanway J. J. and Scott, A. D. 1956 Ammonium fixation and release in certain Iowa soils. Soil Sci.82, 379–386.
Jackson, M. L. 1958 Soil Chemical Analysis. Prentice-Hall Inc., Englewood Cliffs, USA.
Moore, A. W. and Ayeke, C. A. 1965 HF-extractable ammonium nitrogen in four Nigerian soils. Soil Sci.99, 335–338.
Muir, M. K., Hunter, A. S. and Baker, D. E. 1970 Amounts of indigenous fixed ammonium in model Pennsylvania soil profiles. Bull. Pa. Agric. Exp. Stn.765, pp 16.Cited in Soils Fert.34, 995 (1971).
Rodrigues, G. 1954 Fixed ammonia in tropical soils. J. Soil Sci.5, 264–274.
Silva, J. A. and Bremner, J. M. 1966 Determination and isotope-rate analysis of different forms of nitrogen in soils. 5. Fixed ammonium. Soil Sci. Soc. Am. Proc.30, 587–594.
Stevenson, F. J., Dhariwal, A. P. S. and Choudri, M. B. 1958 Further evidence for naturally occurring fixed ammonium in soils. Soil Sci.85, 42–46.
Walsh, L. M. and Murdock, J. F. 1960 Native fixed ammonium and fixation of applied ammonium in several Wisconsin soils. Soil Sci.89, 183–193.
Walsh, L. M. and Murdock, J. T. 1963 Recovery of fixed ammonium by corn in greenhouses studies. Soil Sci. Soc. Am. Proc.37, 200–204.
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Mohammed, I.H. Fixed ammonium in Libyan soils and its availability to barley seedlings. Plant Soil 53, 1–9 (1979). https://doi.org/10.1007/BF02181873
- Crop uptake
- Fixation of added ammonium
- Libyan soils
- Native fixed ammonium
- Plant availability
- Pot culture