References
- Avnimelech , Y. and Laher , M. 1977 . Ammonia volatilization from soils: Equilibrium considerations . Soil Sci. Soc. Am. J. , 41 : 1080 – 1084 .
- Bremner , J. M. and Keeney , D. R. 1966 . Determination and isotope-ratio analysis of different forms of nitrogen in soils: III. Exchangeable ammonium, nitrate and nitrite by extraction-distillation methods . Soil Sci. Soc. Am. Proc. , 30 : 577 – 582 .
- Carslaw , H. S. and Jaeger , J. C. 1959 . Conduction of heat in solids., , 2nd edn Oxford : Clarendon Press .
- Cho , C. M. 1971 . Convective transport of ammonium with nitrification in soil . Can. J. Soil Sci. , 51 : 339 – 350 .
- Du Preez , C. C. , Burger , R. and Du , T. 1986 . A proposed mechanism for the volatilization of ammonia from fertilized neutral to alkaline soils . S. Afr. J. Plant Soil , 3 : 31 – 34 .
- Du Preez , C. C. and Burger , R. Dut . 1987a . Effect of application methods on ammonia volatilization from soils in a controlled environment . S. Afr. J. Plant Soil , 4 : 57 – 60 .
- Du Preez , C. C. , Burger , R. and Du , T. 1987b . Laboratory measurements of ammonia volatilization from five nitrogen-containing fertilizers after surface application at different rates on a neutral to alkaline soil . S. Afr. J. Plant Soil , 4 : 17 – 20 .
- Fenn , L. B. and Hossner , L. R. 1985 . Ammonia volatilization from ammonium or ammonium-forming nitrogen fertilizers . Adv. Soil Sci. , 1 : 123 – 169 .
- Freney , J. R. , Simpson , J. R. and Denmead , O. T. 1983 . “ Volatilization of ammonia. ” . In (eds). Gaseous loss of nitrogen from plant-soil systems. Martinus Nijhoff/Dr. W. Junk Publishers, Boston. Edited by: Freney , J. R. and Simpson , J. R.
- Gardner , W. R. 1965 . “ Movement of nitrogen in soil. ” . In (eds). Soil nitrogen. Am. Soc. of Agron, Madison, Wisconsin. Edited by: Bartholomew , W. V. and Clark , F. E.
- McINTOSH , T. H. and Frederick , L. R. 1958 . Distribution and nitrification of anhydrous ammonia in a Nicollet sandy clay loam . Soil Sci. Soc. Am. Proc. , 22 : 402 – 405 .
- Nelson , D. W. 1982 . “ Gaseous losses of nitrogen other than through denitrification. ” . In (eds). Nitrogen in agricultural soils. Am. Soc. of Agron., Madison, Wisconsin. Edited by: Stevenson , F. J. , Bremner , J. M. , Hauck , R. D. and Keeney , D. R.
- Nye , P. H. 1979 . Diffusion of ions and uncharged solutes in soils and soil clays . Adv. Agron. , 31 : 225 – 271 .
- Nye , P. H. and Tinker , P. B. 1977 . Solute movement in the soil-root system. London : Blackwell Scientific Publications .
- Pang , P. C. , Hedlin , R. A. and Cho , C. M. 1973 . Transformation and movement of band-placed urea, ammonium sulphate and ammonium hydroxide during incubation in several Manitoba soils . Can. J. Soil Sci. , 53 : 331 – 341 .
- Patrick , W. H. and Reddy , K. R. 1976 . Nitrification-denitrification reactions in flooded soils and water bottoms: Dependence on oxygen supply and ammonium diffusion . J. Environ. Qual. , 5 : 469 – 472 .
- Russell , E. W. 1973 . Soil conditions and plant growth., , 10th edn London : Longman .
- Vaidyanathan , L. V. , Drew , M. C. and Nye , P. H. 1968 . The measurement and mechanism of ion diffusion in soils: IV. The concentration dependence of diffusion coefficients of potassium in soils at a range of moisture levels and a method for the estimation of differential diffusion coefficient at any concentration . J. Soil Sci. , 19 : 94 – 107 .
- Weast , R. C. 1976 . Handbook of chemistry and physics. A ready-reference book of chemical and physical data. 57th edn, Chemical Rubber Publishing Co., Cleveland.