Pattern of volatilized nitrogen loss from dryland kikuyu pastures after fertilization

References

• Allison , FE . 1966 . The fate of nitrogen applied to soils . Advances in Agronomy , 18 : 219 – 258 .
   Google Scholar
• Ball , PR and Ryden , JC . 1984 . Nitrogen relationships in intensively managed temperate grasslands . Plant and Soil , 76 : 23 – 33 .
   Web of Science ®Google Scholar
• Black , AS , Sherlock , RR and Smith , NP . 1987 . Effect of timing of simulated rainfall on ammonia volatilization from urea, applied to a soil of varying moisture content . Journal of Soil Science , 38 : 679 – 687 .
   Google Scholar
• Bouwmeester , RJB , Vlek , PLG and Stumpe , JM . 1985 . Effect of environmental factors on ammonia volatilization from a urea‐fertilized soil . Soil Science Society of America Journal , 49 : 376 – 381 .
   Web of Science ®Google Scholar
• Bowman , DC , Paul , JL and Davis , WB . 1987 . Reducing ammonia volatilization on Kentucky bluegrass turf by irrigation . HortScience , 22 : 84 – 87 .
   Web of Science ®Google Scholar
• Daftardar , S Y and Shinde , SA . 1980 . Kinetics of ammonia volatili‐zation of anhydrous ammonia applied to a vertisol as influenced by farmyard manure, sorted cations and cation exchange capacity . Communications in Soil Science and Plant Analysis , 11 : 135 – 145 .
   Web of Science ®Google Scholar
• Denmead , OT , Freney , JR and Simpson , JR . 1976 . A closed ammonia cycle within a plant canopy . Soil Biology and Biochemistry , 8 : 161 – 164 .
   Web of Science ®Google Scholar
• Denmead , OT , Simpson , JR and Freney , JR . 1977 . A direct measurement of ammonia emission after injection of anhydrous ammonia . Soil Science Society of America Journal , 41 : 1001 – 1004 .
   Google Scholar
• 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 .
   Google Scholar
• 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 .
   Google Scholar
• Jarvis , SC , Hatch , DJ and Roberts , DH . 1989 . 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 .
   Web of Science ®Google Scholar
• Keller , GD and Mengel , DB . 1986 . Ammonia volatilization from nitrogen fertilizers applied to no‐till com . Soil Science Society of America Journal , 50 : 1060 – 1063 .
   Web of Science ®Google Scholar
• MacVicar , 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 .
   Google Scholar
• McGarity , JW and Rajaratnam , JA . 1973 . Apparatus for the measurement of losses of nitrogen as a gas from the field and simulated field environments . Soil Biology and Biochemistry , 5 : 121 – 131 .
   Google Scholar
• Marshall , VG and Debell , DS . 1980 . Comparison of four methods of measuring volatilization losses of nitrogen following urea fertilization of forest soils . Canadian Journal of Soil Science , 60 : 549 – 563 .
   Web of Science ®Google Scholar
• Reynolds , CM and Wolf , DC . 1987 . Effect of soil moisture and air relative humidity on ammonia volatilization from surface‐applied urea . Soil Science , 143 : 144 – 152 .
   Web of Science ®Google Scholar
• 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 .
   Web of Science ®Google Scholar
• 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 . Martinus Nijhoff Publishers .
   Google Scholar
• Steel , RGD and Torrie , JH . 1981 . Principles and procedures of statistics () , 2nd edn , Singapore : McGraw‐Hill .
   Google Scholar
• Steele , KW . 1987 . “ Nitrogen losses from managed grasslands ” . In Managed grasslands , Edited by: Snydon , RW . New York : Elsevier .
   Google Scholar
• Titko , S , Street , JR and Logan , TJ . 1987 . Volatilization of ammonia from granular and dissolved urea applied to turf grass . Agronomy Journal , 79 : 535 – 540 .
   Google Scholar
• Vlek , PLG and Stumpe , JM . 1978 . Effects of solution chemistry and environmental conditions on ammonia volatilization losses from aqueous systems . Soil Science Society of America Journal , 42 : 416 – 421 .
   Web of Science ®Google Scholar
• Volk , GM . 1959 . Volatile loss of ammonia following surface application of urea to turf or bare soils . Agronomy Journal , 51 : 746 – 749 .
   Google Scholar
• Weatherburn , MW . 1967 . Phenol‐hypochlorite reaction for the determination of ammonia . Analytical Chemistry , 39 : 971 – 974 .
   Web of Science ®Google Scholar