References

Blennerhassett, J.D., B.F. Quin and C.Z.M. Ramakrishnan, 2006. The potential for increasing nitrogen responses using agrotain treated urea. Proc. NZ. Grassland Assoc., 68: 297-301.

Chen, D., H. Suter, A. Islam, R. Edis, J.R. Freney and C.N. Walker, 2008. Prospects of improving efficiency of fertiliser nitrogen in Australian agriculture: A review of enhanced efficiency fertilizers. Aust. J. Soil Res., 46: 289-301.
Direct Link  |  

Dawar, K., M. Zaman, J.S. Rowarth, J.D. Blennerhassett and M.H. Turnbull, 2010. The impact of urease inhibitor on the bioavailability of nitrogen in urea and in comparison with other nitrogen sources in ryegrass (Lolium perenne L.). Crop Past. Sci., 61: 214-221.
Direct Link  |  

Gioacchini, P., A. Nastri, C. Marzadori, C. Giovannini, L.V. Antisari and C. Gessa, 2002. Influence of urease and nitrification inhibitors on N losses from soils fertilized with urea. Biol. Fert. Soils, 36: 129-135.
CrossRef  |  Direct Link  |  

Haynes, R.J. and P.H. Williams, 1993. Nutrient cycling and soil fertility in the grazed pasture ecosystem. Adv. Agron., 49: 119-199.
CrossRef  |  Direct Link  |  

Malhi, S.S., C.A. Grant, A.M. Johnston and K.S. Gill, 2001. Nitrogen fertilization management for no-till cereal production in the Canadian great plains: A review. Soil Till. Res., 60: 101-122.
CrossRef  |  

Saggar, S., 2004. Changes in nitrogen dynamics of legume-based pastures with increased nitrogen fertiliser use: Impacts on New Zealand's nitrous oxide emissions inventory. NZ. Soil News, 52: 110-117.

Salvagiotti, F. and D.J. Miralle, 2007. Wheat development as affected by nitrogen and sulfur nutrition. Aust. J. Agric. Res., 58: 39-45.
Direct Link  |  

Sommer, S.G. and N.J. Hutchings, 2001. Ammonia emissions from field applied manure and its reduction-invited paper. Eur. J. Agron., 15: 1-15.
CrossRef  |  

Sommer, S.G., J.K. Schjoerring and O.T. Denmead, 2004. Ammonia emission from mineral fertilizers and fertilized crops. Adv. Agron., 82: 557-622.
CrossRef  |  

Van der Stelt, B., E.J.M. Temminghoff and W.H. van Riemsdijk, 2005. Measurement of ion speciation in animal slurries using the Donnan membrane technique. Anal. Chimica Acta, 552: 135-140.
CrossRef  |  

Watson, C.J., 2000. Urease activity and inhibition-priciples and practice. Proceedings of the International Fertiliser Society S.454. http://www.fertiliser-society.org/proceedings/uk/Prc454.HTM.

Watson, C.J., H. Miller, P. Poland, D.J. Kilpatrick, M.D.B. Allen, M.K. Garrett and C.B. Christianson, 1994. Soil properties and the ability of the urease inhibitor N-(n-BUTYL) thiophosphoric triamide (nBTPT) to reduce ammonia volatilization from surface-applied urea. Soil Biol. Biochem., 26: 1165-1171.

Yang, D., J. FengHua, W. Liang and X. Hou, 2006. Effect of combined application of urease and nitrification inhibitors on yield and quality of wheat. Agric. J., 1: 109-112.
CrossRef  |  Direct Link  |  

Zaman, M. and J.D. Blennerhassett, 2010. Effects of the different rates of urease and nitrification inhibitors on gaseous emissions of ammonia and nitrous oxide, nitrate leaching and pasture production from urine patches in an intensive grazed pasture system. Agric. Ecosyst. Environ., 136: 236-246.
CrossRef  |  

Zaman, M., M.L. Nguyen, J.D. Blennerhassett and B.F. Quin, 2008. Reducing NH₃ N₂O and NO₃-N losses from a pasture soil with urease or nitrification inhibitors and elemental S-amended nitrogenous fertilizers. Biol. Fertil. Soils, 44: 693-705.

Zaman, M., S. Saggar, J.D. Blennerhassett and J. Singh, 2009. Effect of urease and nitrification inhibitors on N transformation, gaseous emissions of ammonia and nitrous oxide, pasture yield and N uptake in grazed pasture system. Soil Biol. Biochem., 41: 1270-1280.
CrossRef  |