Abstract
Pervasive uncertainty surrounds the selection of cost-effective sets of mitigation options to address nitrogen leaching from grazing systems, particularly as these possess complex nutrient cycles and interdependent ecological processes that govern the plant–animal interface. A non-linear optimisation model is used to explore how the nature of optimal abatement strategies changes with alternative levels of leaching reduction, production intensity, milk price, and the availability of restricted grazing facilities, in the context of pasture-based dairy farms in New Zealand. It is found that costly de-intensification is required if a loafing pad—on which cows can be removed from pasture during periods of high leaching risk—is unavailable. This arises from the fundamental linkage between milk production and nitrogen leaching, driven by energy and protein ingestion present in the same feedstuffs, in these farming systems. Use of a sole mitigation option is only warranted if a loafing pad can be used to decrease urinary nitrogen deposition onto agricultural soils, with its optimal level of use increasing in the degree of reduction required. Model output for farms of different production intensity is conceptually similar. However, the cost of abatement is highest on grass-only farms, as there is less scope for de-intensification and capacity to use imported feed to offset losses in pasture intake associated with the use of a loafing pad.
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References
Aarts HFM, Biewinga EE, van Keulen H (1992) Dairy farming systems based on efficient nutrient management. Neth J Agric Sci 40:285–299
Aarts HFM, Habekotte B, van Keulen H (2000) Nitrogen management in the De Marke dairy farming system. Nutr Cycl Agroecosyst 56:231–240
Basset-Mens C, Ledgard SF, Boyes M (2009) Eco-efficiency of intensification scenarios for milk production in New Zealand. Ecol Econ 68:1615–1625
Belflower JB, Bernad JK, Gattie DK, Hancock DW, Risse LM, Rotz CA (2012) A case study of the potential environmental impacts of different dairy production systems in Georgia. Agric Syst 108:84–93
Beukes PC, Gregorini P, Romera AJ, Dalley DE (2011) The profitability and risk of dairy cow wintering strategies in the Southland region of New Zealand. Agric Syst 104:541–550
Beukes PC, Scarsbrook MR, Gregorini P, Romera AJ, Clark DA, Catto W (2012) The relationship between milk production and farm-gate nitrogen surplus for the Waikato region, New Zealand. J Environ Manag 93:44–51
Borsting CF, Kristensen T, Misciattelli L, Hvelplund T, Weisbjerg MR (2003) Reducing nitrogen surplus from dairy farms. Effects of feeding and management. Livest Prod Sci 83:165–178
Brennan A, Patton D (2010) Achieving increased grass utilisation. Dairying: entering a decade of opportunity. Teagasc, Mullingar, pp 55–63
Brooke A, Kendrick D, Meeraus A, Raman R (2014) GAMS—a user’s guide. GAMS Development Corporation, Washington
Bryant JR, Hoogendoorn CJ, Snow VO (2007) Simulation of mitigation strategies to reduce nitrogen leaching from grazed pasture. Proc N Z Grassl Assoc 69:145–151
Buyusse J, van Huylenbroeck G, Vanslembrouck I, Vanrolleghem P (2005) Simulating the influence of management decisions on the nutrient balance of dairy farms. Agric Syst 86:333–348
Cameron KC, Di HJ, Moir JL (2013) Nitrogen losses from the soil/plant system: a review. Ann Appl Biol 162:145–173
Carvalho PCDF (2013) Can grazing behaviour support innovations in grassland management? Trop Grassl 1:137–155
Christensen CL (2013) Duration-controlled grazing of dairy cows: impacts on pasture production and losses of nutrients and faecal microbes to water. Dissertation, Massey University
Clark C, McLeod K, Glassey C, Gregorini P, Costall D, Betteridge K, Jago J (2010) Capturing urine while maintaining pasture intake, milk production, and animal welfare of dairy cows in early and late lactation. J Dairy Sci 93:2280–2286
Dairy NZ (2012) Facts and figures for New Zealand dairy farmers. Dairy NZ, Hamilton
de Klein CAM, Monaghan RM (2011) The effect of farm and catchment management on nitrogen transformations and N2O losses of pastoral systems—can we offset the effects of future intensification? Curr Opin Environ Sustain 3:396–406
de Klein CAM, Monaghan RM, Ledgard SF, Shepherd M (2010) A systems perspective on the effectiveness of measures to mitigate the environmental impacts of nitrogen losses from pastoral dairy farming. Proc Australas Dairy Sci Symp 4:14–28
Doole GJ (2010) Indirect instruments for nonpoint pollution control with multiple, dissimilar agents. J Agric Econ 61:680–696
Doole GJ (2014a) Least cost greenhouse gas mitigation on New Zealand dairy farms. Nutr Cycl Agroecosyst 98:235–251
Doole GJ (2014b) Economic feasibility of supplementary feeding on dairy farms in the Waikato region of New Zealand. N Z J Agric Res 57:90–99
Doole GJ, Pannell DJ (2011) Evaluating environmental policies under uncertainty through application of robust nonlinear programming. Aust J Agric Resour Econ 55:469–486
Doole GJ, Pannell DJ (2012) Empirical evaluation of nonpoint pollution policies under agent heterogeneity: regulating intensive dairy production in the Waikato region of New Zealand. Aust J Agric Resour Econ 56:82–101
Doole GJ, Paragahawewa UH (2011) Profitability of nitrification inhibitors for abatement of nitrate leaching on a representative dairy farm in the Waikato region of New Zealand. Water 3:1031–1049
Doole GJ, Romera AJ (2013) Detailed description of grazing systems using nonlinear optimisation methods: a model of a pasture-based New Zealand dairy farm. Agric Syst 122:33–41
Doole GJ, Romera AJ (2014) Implications of a nitrogen leaching efficiency metric for pasture-based dairy farms. Agric Water Manag 142:10–18
Doole GJ, Romera AJ, Adler AA (2013a) An optimisation model of a New Zealand dairy farm. J Dairy Sci 96:2147–2160
Doole GJ, Marsh DK, Ramilan T (2013b) Evaluation of agri-environmental policies for reducing nitrate pollution from New Zealand dairy farms accounting for firm heterogeneity. Land Use Policy 30:57–66
Fezzi C, Rigby D, Bateman IJ, Hadley D, Posen P (2008) Estimating the range of economic impacts on farms of nutrient leaching reduction policies. Agric Econ 39:197–205
Garwood EA, Ryden JC (1986) Nitrate loss through leaching and surface runoff from grassland: effects of water supply, soil type and management. Dev Plant Soil Sci 23:99–113
Gourley CJP, Dougherty WJ, Aarons SR, Hannah M (2010) Accounting for nutrients on Australian dairy farms. Department of Primary Industries, Ellinbank
Grieg B (2012) Changing New Zealand dairy farm systems. Proc SIDE Conf 14:217–228
Groeneveld R, Bouwman L, Kruitwagen S, van Ierland E (2001) Land cover changes as a result of environmental restrictions on nitrate leaching in dairy farming. Environ Model Assess 6:101–109
Groot JCJ, Rossing WAH, Lantinga EA (2006) Evolution of farm management, nitrogen efficiency and economic performance on Dutch dairy farms reducing external inputs. Livest Sci 100:99–110
Hewitt AE (1998) New Zealand soil classification. Manaaki Whenua Press, Lincoln
Holland LM, Doole GJ (2014) Implications of fairness for the design of nitrate leaching policy for heterogeneous New Zealand dairy farms. Agric Water Manag 132:79–88
Jarvis SC (2000) Progress in studies of nitrate leaching from grassland soils. Soil Use Manag 16:152–156
Jensen RN, Clark DA, Macdonald KA (2005) Resource efficient dairying trial: measurement criteria for farm systems over a range of resource use. Proc N Z Grassl Assoc 67:47–52
Kemp DR, Michalk DL (2007) Towards sustainable grassland and livestock management. J Agric Sci 145:543–564
Korevaar H (1992) The nitrogen balance on intensive Dutch dairy farms: a review. Livest Prod Sci 31:17–27
Le Goffe P (2013) The nitrates directive, incompatible with livestock farming? Notre Europe 93:10–22
Ledgard SF, Penno JW, Sprosen MS (1997) Nitrogen balances and losses on intensive dairy farms. Proc N Z Grassl Assoc 59:49–53
Ledgard SF, Crush JR, Penno JW (1998) Environmental impacts of different nitrogen inputs on dairy farms and implications for the resource management act of New Zealand. Environ Pollut 102:515–519
Ledgard S, Sprosen M, Judge A, Lindsay S, Jensen R, Clark DA, Luo J (2006) Nitrogen leaching as affected by dairy intensification and mitigation practices in the resource efficient dairying (RED) trial. In: Currie LD, Hanly JA (eds) Fertiliser and lime research centre occasional report no. 19. Massey University, Palmerston North, pp 263–268
Lilburne L, Webb T, Ford R, Bidwell V (2010) Estimating nitrate nitrogen leaching rates under rural land uses in Canterbury. Environment Canterbury, Christchurch
Luo J, Donnison A, Ross C, Ledgard SF, Longhurst B (2006) Control of pollutants using stand-off pads containing different natural materials. Proc N Z Grassl Assoc 68:315–320
Macdonald KA, Penno JW, Lancaster JAS, Roche JR (2008) Effect of stocking rate on pasture production, milk production, and reproduction of dairy cows in pasture-based systems. J Dairy Sci 91:2151–2163
Macdonald KA, Beca D, Penno JW, Lancaster JAS, Roche JR (2011) Short communication: effect of stocking rate on the economics of pasture-based dairy farms. J Dairy Sci 94:2581–2586
McCall DG, Clark DA (1999) Optimised dairy grazing systems in the northeast United States and New Zealand. II. System analysis. J Dairy Sci 82:1808–1816
Mihailescu E, Ryan W, Murphy PNC, Casey IA, Humphreys J (2015) Economic impacts of nitrogen and phosphorus efficiency on nineteen intensive grass-based dairy farms in the South of Ireland. Agric Syst 132:121–132
Moir J, Cameron KC, Di HJ (2007) Effects of the nitrification inhibitor dicyandiamide on soil mineral N, pasture yield, nutrient uptake and pasture quality in a grazed pasture system. Soil Use Manag 23:111–120
Monaghan RM, Paton RJ, Smith LC, Drewry JJ, Littlejohn RP (2005) The impacts of nitrogen fertilisation and increased stocking rate on pasture yield, soil physical condition and nutrient losses in drainage from a cattle-grazed pasture. N Z J Agric Res 48:227–240
Monaghan RM, de Klein CAM, Muirhead RW (2008) Prioritisation of farm scale remediation efforts for reducing losses of nutrients and faecal inhibitor organisms to waterways: a case study of New Zealand dairy farming. J Environ Manag 87:609–622
Neal M, Neal J, Fulkerson WJ (2007) Optimal choices of dairy forages in eastern Australia. J Dairy Sci 90:3044–3059
Newman M (2012) DairyBase—benchmarking dairy farm performance. DairyNZ, Hamilton
Ondersteijn CJM, Beldman ACG, Daatselaar CHG, Giesen GWJ, Huirne RBM (2003) Farm structure or farm management: effective ways to reduce nutrient surpluses on dairy farms and their financial impacts. Livest Prod Sci 84:171–181
Organisation for Economic Cooperation and Development (OECD) (2012) Water quality and agriculture: meeting the policy challenge. OECD, Paris
Oudshoorn FW, Sorenson CAG, de Boer IJM (2011) Economic and environmental evaluation of three goal-vision based scenarios for organic dairy farming in Denmark. Agric Syst 104:315–325
Owens LB, Barker DJ, Loerch SC, Shipitalo MJ, Bonta JV, Sulc RM (2012) Inputs and losses by surface runoff and subsurface leaching for pastures managed by continuous or rotational stocking. J Environ Qual 41:106–113
Romera AJ, McCall DG, Lee JM, Agnusdei MG (2009) Improving the McCall herbage growth model. N Z J Agric Res 52:477–494
Romera AJ, Levy G, Beukes PC, Clark DA, Glassey C (2012) A urine patch framework to simulate nitrogen leaching on New Zealand dairy farms. Nutr Cycl Agroecosyst 92:329–346
Romera AJ, Beukes PC, Gregorini P, Cichota R, Snow VO, and Vogeler I (2014) Combining restricted grazing and nitrification inhibitors to reduce nitrogen leaching on New Zealand dairy farms. J Environ Qual (forthcoming)
Rotz CA, Soder KJ, Skinner RH, Dell CJ, Kleinman PJ, Schmidt JP, Bryant RB (2009) Grazing can reduce the environmental impact of dairy production systems. Forage Grazing Lands. doi:10.1094/FG-2009-0916-01-RS
Ryden JC, Ball P, Garwood E (1984) Nitrate leaching from grassland. Nature 311:50–53
Scholefield D, Tyson KC, Garwood EA, Armstrong AC, Hawkins J, Stone AC (1993) Nitrate leaching from grazed grassland lysimeters: effects of fertiliser input, field drainage, age of sward and patterns of weather. J Soil Sci 44:601–613
Silva RG, Cameron KC, Di HJ, Hendry T (1999) A lysimeter study of the impact of cow urine, dairy shed effluent, and nitrogen fertiliser on nitrate leaching. Aust J Soil Res 37:357–369
Statistics New Zealand (SNZ) (2013) Global New Zealand—International trade, investment, and travel profile: Year ended December 2012. SNZ, Wellington
Steenvoorden J, Fonck H, Oosterom HP (1986) Losses of nitrogen from intensive grassland systems by leaching and surface runoff. Dev Plant Soil Sci 23:85–97
Stout WL, Gburek WJ, Schnabel RR, Folmer GJ, Weaver SR (1998) Soil-climate effects on nitrate leaching from cattle excreta. J Environ Qual 27:992–998
Stout WL, Fales SL, Muller LD, Schnabel RR, Weaver SR (2000) Water quality implications of nitrate leaching from intensively grazed pasture swards in the northeast US. Agric Ecosyst Environ 77:203–210
Stout WL, Delahoy JE, Muller LD, Saporito LS (2001) Evaluating nitrogen management options for reducing nitrate leaching from northeast U. S. pastures. Sci World J 9:887–891
Treacy M, Humphreys J, McNamara K, Browne R, Watson CJ (2008) Farm-gate nitrogen balances on intensive dairy farms in the south west of Ireland. Ir J Agric Food Res 47:105–117
van de Ven GWJ, van Keulen H (2007) A mathematical approach to comparing environmental and economic goals in dairy farming: identifying strategic development options. Agric Syst 94:231–246
Vogeler I, Beukes P, Burggraaf V (2013) Evaluation of mitigation strategies for nitrate leaching on pasture-based dairy systems. Agric Syst 115:21–28
Zhang B, Tillman R (2007) A decision tree approach to modelling nitrogen fertiliser use efficiency in New Zealand pastures. Plant Soil 301:267–278
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This research was conducted with the support of funding from the Australian Research Council Centre of Excellence for Environmental Decisions.
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Doole, G.J. Efficient mitigation of nitrogen leaching in pasture-based dairy systems. Nutr Cycl Agroecosyst 101, 193–209 (2015). https://doi.org/10.1007/s10705-015-9669-6
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DOI: https://doi.org/10.1007/s10705-015-9669-6