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Original Articles

Nitrogen volatilized during the grazing of dryland kikuyu pastures

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Pages 92-95 | Received 27 Nov 1992, Accepted 31 May 1993, Published online: 29 Oct 2010

References

  • Ball , PR and Ryden , JC . 1984 . Nitrogen relationships in intensively managed temperate grasslands . Plant and Soil , 76 : 23 – 33 .
  • Daftardar , SY and Shinde , SA . 1980 . Kinetics of ammonia volatilization of anhydrous ammonia applied to a vertisol as influenced by farm yard manure, sorbed cations and cation exchange capacity . Communications in Soil Science and Plant Analysis , 11 : 135 – 145 .
  • Denmead , OT , Simpson , JR and Freney , JR . 1974 . Ammonia flux into the atmosphere from a grazed pasture . Science , 185 : 609 – 610 .
  • Denmead , OT , Freney , JR and Simpson , JR . 1976 . A closed ammonia cycle within a plant canopy . Soil Biology and Biochemistry , 8 : 161 – 164 .
  • Denmead , OT . 1983 . “ Micrometeorological methods for measuring gaseous losses of nitrogen in the field ” . In Gaseous loss of nitrogen from plant‐soil systems , Edited by: Freney , JR and Simpson , JR . Martinus Nijhoff Publishers .
  • Harper , LA , Catchpoole , VR and Vallis , I . 1983 . “ Ammonia loss from fertilizer applied to tropical pastures ” . In Gaseous loss of nitrogen from plant‐soil systems , Edited by: Freney , JR and Simpson , JR . Martinus Nijhoff Publishers .
  • Hutchinson , GL , Millington , RJ and Peters , DB . 1972 . Atmospheric ammonia: absorptions by plant leaves . Science , 175 : 771 – 772 .
  • Jarvis , SC , Hatch , DJ and Roberts , DH . 1989a . The effects of grassland management on nitrogen losses from grazed swards through ammonia volatilization: the relationship to excretal N returns from cattle . Journal of Agricultural Science , 112 : 205 – 216 .
  • Jarvis , SC , Hatch , DJ and Lockyer , DR . 1989b . Ammonia fluxes from cattle production systems and their relation to nitrogen inputs . Journal of Agricultural Science , 113 : 99 – 108 .
  • MacDiarmid , BN and Watkin , BR . 1972 . The cattle dung patch. 2 Effect of a dung patch on the chemical status of the soil and ammonia nitrogen losses from the patch . Journal of the British Grassland Society , 17 : 43 – 48 .
  • Mac Vicar , CN , de Villiers , JM , Loxton , RF , Verster , E , Lambrechts , JJN , Merryweather , FR , le Roux , J , van Rooyen , TH and Harmse , HJvonM . 1977 . Soil classification: a binomial system for South Africa , Pretoria : Department of Agricultural Technical Services .
  • Mckenzie , FR . 1991 . An assessment of volatilized nitrogen losses off dryland kikuyu pastures , Pietermaritzburg : University of Natal . MSc (Agric) thesis
  • O'Tool , P , McGarry , SJ and Morgan , MA . 1985 . Ammonia volatilization from urea‐treated pasture and tillage soils: effects of soil properties . Journal of Soil Science , 36 : 613 – 620 .
  • Rayner , AA . 1967 . A first course in biometry for agricultural students , Pietermaritzburg : University of Natal Press .
  • Ruess , RW and McNaughton , SJ . 1988 . Ammonia volatilization and the effects of large grazing mammals on nutrient loss from East African grasslands . Oecologia. , 77 : 382 – 386 .
  • Ryden , JC and McNeill , JE . 1984 . Application of the micrometeorological mass balance method to the determination of ammonia loss from a grazed sward . Journal of the Science of Food and Agriculture , 35 : 1297 – 1310 .
  • Ryden , JC . 1986 . “ Gaseous losses of nitrogen from grassland ” . In Nitrogen fluxes in intensive grassland systems , Edited by: van der Meer , HG , Ryden , JC and Ennik , GC . Martins Nijoff Publishers .
  • Steele , KW . 1987 . “ Nitrogen losses from managed grasslands ” . In Managed grasslands , Edited by: Snaydon , RW . New York : Elsevier .
  • Whitehead , DC . 1970 . The role of nitrogen in grassland productivity , Commonwealth Bureau of Pasture and Field Crops Bulletin 48 Famham Royal : Commonwealth Agricultural Bureaux .
  • Woodmansee , RG . 1979 . “ Factors influencing input and output of nitrogen in grasslands ” . In Perspectives in grassland ecology , Edited by: French , N . Heidelberg : Springer‐Verlag .

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