References
- ANZECC . 2000 . Australian and New Zealand guidelines for fresh and marine water quality , Vols 1 and 2 , Canberra, ACT, , Australia : Australian and New Zealand Environment and Conservation Council .
- Ball , PR and Ryden , JC . 1984 . Nitrogen relationships in intensively managed temperate grasslands . Plant and Soil , 76 : 23 – 33 .
- Browne , D . 1970 . Evaluating the place of fertiliser nitrogen for dairy farming . Proceedings of the New Zealand Grassland Association , 32 : 153 – 159 .
- Caradus , JR and Chapman , DF . 1991 . Variability of stolon characteristics and response to shading in two cultivars of white clover (Trifolium repens L.) . New Zealand Journal of Agricultural Research , 34 : 237 – 247 .
- Carrick , ST , Alexander , DA and McIntosh , PD . 2001 . “ Soils of the Mataura‐Gorge Road district. Scale 1: 50 000 ” . In Topoclimate South soil Map 28a Topoclimate South, Mataura, , New Zealand
- Crosbie , SF , Smallfield , BM , Hawker , H , Floate , MJS , Keoghan , JM , Enright , PD and Abernathy , RJ . 1987 . Exploiting the pasture capacitance probe in agricultural research: a comparison with other methods of measuring herbage mass . Journal of Agricultural Science, Cambridge , 108 : 155 – 163 .
- Curll , ML , Wilkins , RJ , Snaydon , RW and Shanmugalingam , VS . 1985 . The effects of stocking rate and nitrogen fertilizer on a perennial ryegrass‐white clover sward. 2. Subsequent sward and sheep performance . Grass and Forage Science , 40 : 141 – 149 .
- Dexter , AR . 1991 . Amelioration of soil by natural processes . Soil and Tillage Research , 20 : 87 – 100 .
- Di , HJ and Cameron , KC . 2002 . Nitrate leaching and pasture production from different nitrogen sources on a shallow stoney soil under flood‐irrigated dairy pasture . Australian Journal of Soil Research , 40 : 317 – 334 .
- Drewry , JJ and Paton , RJ . 2000 . Effects of cattle treading and natural amelioration on soil physical properties and pasture under dairy farming in Southland, New Zealand . New Zealand Journal of Agricultural Research , 43 : 377 – 386 .
- Drewry , JJ , Littlejohn , RJ and Paton , RJ . 2000 . A survey of soil physical properties on sheep and dairy farms in southern New Zealand . New Zealand Journal of Agricultural Research , 43 : 251 – 258 .
- Drewry , JJ , Littlejohn , RJ , Paton , RJ , Singleton , PL , Boyes , M , Judge , A , Monaghan , RM and Smith , LC . 2002 . “ Dairy pasture yield responses to macroporosity and soil physical properties, and variability of large and small samples ” . In Dairy farm soil management , Occasional Report 15 Edited by: Currie , LD and Logana‐than , P . 61 – 78 . New Zealand : Massey University .
- Eisenreich , SJ , Bannerman , RT and Armstrong , DE . 1975 . A simplified phosphorus analytical technique . Environmental Letters , 9 : 45 – 53 .
- Environment Southland . 2000 . Proposed regional freshwater plan , Publication No. 2000–20 Environment Southland .
- Feyter , C , O'Connor , MB and Addison , B . 1985 . Effects of rates and times of nitrogen application on the production and composition of dairy pastures in Waikato district, New Zealand . New Zealand Journal of Experimental Agriculture , 13 : 247 – 252 .
- GenStat Committee . 2002 . GenStat for Windows. , 6th ed. , Oxford : VSNInternational .
- Greenwood , KL and McKenzie , BM . 2001 . Grazing effects on soil physical properties and consequences for pastures: a review . Australian Journal of Experimental Agriculture , 41 : 1231 – 1250 .
- Harris , AJ , Brown , KR , Turner , JD , Johnstone , JM , Ryan , DL and Hickey , MJ . 1973 . Some factors affecting pasture growth in Southland . New Zealand Journal of Experimental Agriculture , 1 : 139 – 163 .
- Harris , SL and Clark , DL . 1996 . Effects of high rates of nitrogen fertiliser on white clover growth, morphology, and nitrogen fixation activity in grazed dairy pasture in northern New Zealand . New Zealand Journal of Agricultural Research , 39 : 149 – 158 .
- Hewitt , AE and Shepherd , TG . 1997 . Structural vulnerability of New Zealand soils . Australian Journal of Soil Research , 35 : 461 – 474 .
- Ledgard , SF . 1990 . Nitrogen fertiliser use on pastures and crops , 32 Christchurch : Wyatt & Wilson Print .
- Ledgard , SF , Crush , JR and Penno , JW . 1998 . Environmental impacts of different nitrogen inputs on dairy farms and implications for the Resource Management Act of New Zealand . Environmental Pollution , 102 : 515 – 519 .
- LIC . 1991 . Dairy statistics , Hamilton : Livestock Improvement Corporation .
- LIC . 2003 . Dairy statistics , Hamilton : Livestock Improvement Corporation .
- MAF . 2002 . Dairy monitoring report: a short‐term financial and physical forecast reflecting farmer, farm consultant and industry perceptions of farming trends and issues, production and financial figures , Hamilton : MAFPolicy, Ministry of Agriculture and Forestry .
- MAF . 2003 . Dairy monitoring report: a short‐term financial and physical forecast reflecting farmer, farm consultant and industry perceptions of farming trends and issues, production and financial figures , Hamilton : MAFPolicy, Ministry of Agriculture and Forestry .
- Moir , JL , Scotter , DR , Hedley , MJ and Mackay , AD . 2000 . A climate‐driven, soil fertility dependent, pasture production model . New Zealand Journal of Agricultural Research , 43 : 491 – 500 .
- Monaghan , RM and Smith , LC . 2004 . Minimising surface water pollution resulting from farm‐dairy effluent application to mole‐pipe drained soils. II. The contribution of preferential flow of effluent to whole‐farm pollutant losses in subsurface drainage from a West Otago dairy farm . New Zealand Journal of Agricultural Research , 47 : 417 – 428 .
- Monaghan , RM , Paton , RJ and Drewry , JJ . 2002 . Nitrogen and phosphorus losses in mole and tile drainage from a cattle‐grazed pasture in eastern Southland . New Zealand Journal of Agricultural Research , 45 : 197 – 205 .
- Mulvaney , RL and Bremner , JM . 1979 . A modified diacetyl monoxime method for colorimetric determination of urea in soil extracts . Communications in Soil Science and Plant Analysis , 10 : 1163 – 1170 .
- Murphy , J and Riley , JR . 1962 . A modified single solution method for the determination of phosphate in natural waters . Analytica Chimica Acta , 27 : 31 – 36 .
- Neshiem , L and Boller , BC . 1991 . Nitrogen fixation by white clover when competing with grasses at moderately low temperatures . Plant and Soil , 133 : 47 – 56 .
- O'Connor , MB . 1982 . “ Nitrogen fertilisers for the production of out‐of‐season grass ” . In Nitrogen fertilisers in New Zealand agriculture , Edited by: Lynch , PB . 65 – 76 . Wellington : New Zealand Institute of Agricultural Science .
- Percival , HJ , Schipper , LA and Sparling , GP . 2003 . “ An approach for estimating maximum nitrogen storage in soils at national scales ” . In Tools for nutrient and pollutant management , Occasional Report 17 Edited by: Currie , LD and Hanly , JA . 219 – 223 . New Zealand : Massey University .
- Roach , CG , Longhurst , RD and Ledgard , SF . 2001 . Land application of farm dairy effluent for sustainable dairy farming . Proceedings of the New Zealand Grassland Association , 63 : 53 – 57 .
- Risk , WH . 1982 . “ The use of nitrogen fertilisers on the Southland Plains ” . In Nitrogen fertilisers in New Zealand agriculture , Edited by: Lynch , PB . 149 – 158 . Wellington : New Zealand Institute of Agricultural Science .
- Scotter , DR , Clothier , BE and Turner , MA . 1979 . The soil water balance in a Fragiaqualf and its effect on pasture growth in central New Zealand . Australian Journal of Soil Research , 17 : 455 – 465 .
- Silva , RG , Cameron , KC , Di , HJ and Hendry , T . 1999 . A ly‐simeter study of the impact of cow urine, dairy shed effluent, and nitrogen fertiliser on nitrate leaching . Australian Journal of Soil Research , 37 : 357 – 369 .
- Sinclair , AG , Smith , LC , Morrison , JD and Dodds , KG . 1996 . Effects and interaction of phosphorus and sulphur on a mown white clover/ryegrass sward 1. Herbage dry matter production and balanced nutrition . New Zealand Journal of Agricultural Research , 39 : 421 – 433 .
- Singleton , PL , Boyes , M and Addison , B . 2000 . Effects of treading by dairy cattle on topsoil physical conditions for six contrasting soil types in Waikato and Northland, New Zealand, with implications for monitoring . New Zealand Journal of Agricultural Research , 43 : 559 – 567 .
- Smith , LC and Monaghan , RM . 2003 . Nitrogen and phosphorus losses in overland flow from a cattle‐grazed pasture in Southland . New Zealand Journal of Agricultural Research , 46 : 225 – 237 .
- Smith , LC , Morton , JD , Catto , WD and Trainor , KD . 2000 . Nitrogen responses on pastures in the southern South Island of New Zealand . Proceedings of the New Zealand Grassland Association , 62 : 19 – 23 .
- Steele , KW , Judd , MJ and Shannon , PW . 1984 . Leaching of nitrate and other nutrients from a grazed pasture . New Zealand Journal of Agricultural Research , 27 : 5 – 11 .
- Vickery , PJ and Nicol , GR . 1982 . An improved electronic capacitance meter for estimating pasture yield: construction details and performance tests , Animal Research Laboratories Technical Paper No. 9 Australia : CSIRO .
- Whitehead , DC . 1995 . Grassland nitrogen , Wallingford : CAB International .