Abstract
We applied a mechanistic ecosystem model to investigate the production and environmental performances of (1) current agricultural practice on two fields of a stockless organic cereal farm in southeast Norway and (2) alternative cereal-ley rotations and plowing time scenarios. Scenarios were simulated using historic weather data and a climate change scenario. Measured and simulated soil mineral N concentrations were generally low (1–4 g N m−2) and in good agreement. Simulated nitrate leaching was similar for the two fields, except when an extended period of black fallow weeding was practiced on one of them. Scenario simulations indicated that continuous cereal cropping undersown with a clover–grass winter cover crop performed best when evaluated by whole-rotation grain yield, the N yield/input-, and N loss/yield-ratios, and greenhouse gas emissions. However, the rotation had the largest soil organic matter losses. The N use and loss efficiency indicators were especially poor when ley years occurred consecutively and under fall plowing. Total greenhouse gas emissions were, however, smaller for the fall-plowed scenarios. In conclusion, our results indicated a modest potential for improving stockless systems by management changes in plowing time or crop rotation, which was hardly different in the climate change scenarios, although nitrate leaching increased substantially in the winter. Alternative strategies seem necessary to substantially improve the N-use efficiency in stockless organic grain production systems, e.g., biogas production from green manure and subsequent recycling of the digestate. Abandoning the stockless system and reintegrating livestock should also be considered.
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References
Berry PM, Sylvester-Bradley R, Philipps L, Hatch DJ, Cuttle SP, Rayns FW, Gosling P (2002) Is the productivity of organic farms restricted by the supply of available nitrogen? Soil Use Manag 18:248–255. doi:10.1079/sum2002129
Bleken MA, Herrmann A, Haugen LE, Taube F, Bakken L (2009) SPN: a model for the study of soil-plant nitrogen fluxes in silage maize cultivation. Eur J Agron 30(4):283–295. doi:10.1016/j.eja.2009.01.001
Blombäck K, Eckersten H (1997) Simulated growth and nitrogen dynamics of a perennial rye grass. Agric For Meteorol 88(1–4):37–45
Borgen SK, Molstad L, Bruun S, Breland TA, Bakken L, Bleken MA (2011) Estimation of plant litter pools and decomposition-related parameters in a mechanistic model. Plant Soil 338:205–222. doi:10.1007/s11104-010-0404-4
Breland TA, Eltun R (1999) Soil microbial biomass and mineralization of carbon and nitrogen in ecological, integrated and conventional forage and arable cropping systems. Biol Fertil Soils 30(3):193–201
Bremmer JM, Mulvaney CS (1982) Nitrogen-total. In: Page AL, Miller RH, Keeney DR (eds) Methods of soil analysis. Part 2. American Society of Agronomy, Madison, USA, pp 595–624
Bruun S, Jensen LS (2002) Initialisation of the soil organic matter pools of the Daisy model. Ecol Model 153(3):291–295
Calderon FJ, Jackson LE, Scow KM, Rolston DE (2001) Short-term dynamics of nitrogen, microbial activity, and phospholipid fatty acids after tillage. Soil Sci Soc Am J 65(1):118–126
Chirinda N, Carter MS, Albert KR, Ambus P, Olesen JE, Porter JR, Petersen SO (2010) Emissions of nitrous oxide from arable organic and conventional cropping systems on two soil types. Agric Ecosyst Environ 136(3–4):199–208. doi:10.1016/j.agee.2009.11.012
Dahlin AS, Stenberg M (2010) Transfer of N from red clover to perennial ryegrass in mixed stands under different cutting strategies. Eur J Agron 33(3):149–156. doi:10.1016/j.eja.2010.04.006
Dahlin S, Kirchmann H, Katterer T, Gunnarsson S, Bergstrom L (2005) Possibilities for improving nitrogen use from organic materials in agricultural cropping systems. Ambio 34(4–5):288–295
Deelstra J, Bachmann M, Kvaerno SH (2002) SOIL and SOIL-NO at catchment scale—a case study for an agriculture-dominated catchment. Water Sci Technol 45(9):9–17
Del Grosso SJ, Parton WJ, Mosier AR, Ojima DS, Kulmala AE, Phongpan S (2000) General model for N2O and N2 gas emissions from soils due to dentrification. Global Biogeochem Cycles 14(4):1045–1060
Del Grosso S, Halvorsen A, Parton WJ (2008) Testing Daycent model simulations of corn yields and nitrous oxide emissions in irrigated tillage systems in Colorado. J Environ Qual 37:1383–1389
DeLuca T, Keeney D, McCarty GW (1992) Effects of freeze-thaw events on mineralization of soil nitrogen. Biol Fertil Soils 14:116–120
Doltra J, Laegdsmand M, Olesen JE (2011) Cereal yield and quality as affected by nitrogen availability in organic and conventional arable crop rotations: a combined modeling and experimental approach. Eur J Agron 34(2):83–95. doi:10.1016/j.eja.2010.11.002
Engen-Skaugen T (2007) Refinement of dynamically downscaled precipitation and temperature scenarios. Clim Chang 84(3–4):365–382. doi:10.1007/s10584-007-9251-6
Gordon C, Cooper C, Senior CA, Banks H, Gregory JM, Johns TC, Mitchell JFB, Wood RA (2000) The simulation of SST, sea ice extents and ocean heat transports in a version of the Hadley Centre coupled model without flux adjustments. Clim Dyn 16(2–3):147–168
Hansen B, Kristensen ES, Grant R, Hogh-Jensen H, Simmelsgaard SE, Olesen JE (2000) Nitrogen leaching from conventional versus organic farming systems—a systems modelling approach. Eur J Agron 13(1):65–82
Høgh-Jensen H (1997) Biological nitrogen fixation in clover-ryegrass systems. PhD Thesis, The Royal Veterinary and Agricultural University, Copenhagen
Høgh-Jensen H, Schjørring JK (2001) Rhizodeposition of nitrogen by red clover, white clover and ryegrass leys. Soil Biol Biochem 33(4–5):439–448
Jansson PE, Karlberg L (2001) Coupled heat and Mass transfer model for soil-plant-atmosphere systems. Department of Civil and Environmental Engineering, Royal Institute of Technology, Stockholm
Jansson PE, Moon DS (2001) A coupled model of water, heat and mass transfer using object orientation to improve flexibility and functionality. Environ Model Softw 16(1):37–46
Jansson PE, Svensson M, Kleja DB, Gustafsson D (2008) Simulated climate change impacts on fluxes of carbon in Norway spruce ecosystems along a climatic transect in Sweden. Biogeochemistry 89(1):81–94. doi:10.1007/s10533-007-9147-6
Jensen ES (1996) Grain yield, symbiotic N-2 fixation and interspecific competition for inorganic N in pea–barley intercrops. Plant Soil 182(1):25–38
Jensen LS, Salo T, Palmason F, Breland TA, Henriksen TM, Stenberg B, Pedersen A, Lundstrom C, Esala M (2005) Influence of biochemical quality on C and N mineralisation from a broad variety of plant materials in soil. Plant Soil 273(1–2):307–326
Johnson JMF, Archer D, Barbour N (2010) Greenhouse gas emission from contrasting management scenarios in the Northern Corn Belt. Soil Sci Soc Am J 74(2):396–406. doi:10.2136/sssaj2009.0008
Johnsson H, Bergstrom L, Jansson PE, Paustian K (1987) Simulated nitrogen dynamics and losses in a layered agricultural soil. Agric Ecosyst Environ 18(4):333–356
Kirchmann H, Marstorp H (1991) Calculation of N-mineralization from 6 green manure legumes under field conditions from autumn to spring. Acta Agric Scand 41(3):253–258
Knudsen MT, Kristensen IBS, Berntsen J, Petersen BM, Kristensen ES (2006) Estimated N leaching losses for organic and conventional farming in Denmark. J Agric Sci 144:135–149. doi:10.1017/s0021859605005812
Korsaeth A (2008) Relations between nitrogen leaching and food productivity in organic and conventional cropping systems in a long-term field study. Agric Ecosyst Environ 127(3–4):177–188. doi:10.1016/j.agee.2008.03.014
Korsaeth A, Eltun R (2000) Nitrogen mass balances in conventional, integrated and ecological cropping systems and the relationship between balance calculations and nitrogen runoff in an 8-year field experiment in Norway. Agric Ecosyst Environ 79(2–3):199–214
Korsaeth A, Henriksen TM, Bakken LR (2002) Temporal changes in mineralization and immobilization of N during degradation of plant material: implications for the plant N supply and nitrogen losses. Soil Biol Biochem 34(6):789–799
Korsaeth A, Bakken LR, Riley H (2003) Nitrogen dynamics of grass as affected by N input regimes, soil texture and climate: lysimeter measurements and simulations. Nutr Cycl Agroecosyst 66(2):181–199
Lampkin N (1994) Organic farming. Farming Press, Ipswich
Li CS, Frolking S, Butterbach-Bahl K (2005) Carbon sequestration in arable soils is likely to increase nitrous oxide emissions, offsetting reductions in climate radiative forcing. Clim Chang 72(3):321–338. doi:10.1007/s10584-005-6791-5
Løes AK, Henriksen TM, Eltun R, Sjursen H (2011) Repeated use of green-manure catch crops in organic cereal production—grain yields and nitrogen supply. Acta Agric Scand Sect B-Soil Plant Sci 61(2):164–175. doi:10.1080/09064711003655509
Lundkvist A, Salomonsson L, Karlsson L, Gustavsson AMD (2008) Effects of organic farming on weed flora composition in a long term perspective. Eur J Agron 28(4):570–578. doi:10.1016/j.eja.2008.01.001
Lynch D (2009) Environmental impacts of organic agriculture: a Canadian perspective. Can J Plant Sci 89(4):621–628
McGeehan MB, Henshall JK, Vinten AJA (2005) Cultivation and soil organic matter management in low input cereal production following the ploughing out of grass leys. Biosyst Eng 90(1):85–101. doi:10.1016/j.biosystemseng.2004.07.003
Mørkved PT, Dörsch P, Henriksen TM, Bakken LR (2006) N2O emissions and product ratios of nitrification and denitrification as affected by freezing and thawing. Soil Biol Biochem 38(12):3411–3420. doi:10.1016/j.soilbio.2006.05.015
Myers R, van Nordwijk M, Vityakon P (1997) Synchrony of nutrient release and plant demand: plant litter quality, soil environment and farmer management options. In: Cadish G, Giller K (eds) Driven by nature: plant litter quality and decomposition. CAB International, Oxon
Nykanen A, Salo T, Granstedt A (2009) Simulated cereal nitrogen uptake and soil mineral nitrogen after clover-grass leys. Nutr Cycl Agroecosyst 85(1):1–15. doi:10.1007/s10705-008-9244-5
Petersen BM, Berntsen J, Hansen S, Jensen LS (2005) CN-SIM—a model for the turnover of soil organic matter. I. Long-term carbon and radiocarbon development. Soil Biol Biochem 37(2):359–374. doi:10.1016/j.soilbio.2004.08.006
Schlesinger WH (2009) On the fate of anthropogenic nitrogen. Proc Natl Acad Sci USA 106(1):203–208. doi:10.1073/pnas.0810193105
Silgram M, Shepherd M (1999) The effects of cultivation on soil nitrogen mineralization. Adv Agron 65:267–311
Stake RE (2000) Case studies. In: Denzin NK, Lincoln YS (eds) The handbook of qualitative research. Sage Publications, Thousand Oaks, pp 435–454
Steinshamn H, Thuen E (2008) White or red clover-grass silage in organic dairy milk production: grassland productivity and milk production responses with different levels of concentrate. Livest Sci 119(1–3):202–215. doi:10.1016/j.livsci.2008.04.004
Stockdale EA, Lampkin NH, Hovi M, Keatinge R, Lennartsson EKM, Macdonald DW, Padel S, Tattersall FH, Wolfe MS, Watson CA (2001) Agronomic and environmental implications of organic farming systems. Adv Agron 70:261–327
Stolze M, Piorr A, Häring A, Dabbert S (2000) The environmental impacts of organic farming in Europe, vol 6. Organic farming in Europe: economics and policy. University of Hohenheim, Stuttgart
Stopes C, Lord EI, Philipps L, Woodward L (2002) Nitrate leaching from organic farms and conventional farms following best practice. Soil Use Manag 18:256–263. doi:10.1079/sum2002128
Sturite I, Uleberg MV, Henriksen TM, Jorgensen M, Bakken AK, Breland TA (2006) Accumulation and loss of nitrogen in white clover (Trifolium repens L.) plant organs as affected by defoliation regime on two sites in Norway. Plant Soil 282(1–2):165–182. doi:10.1007/s11104-005-5697-3
Sturite I, Henriksen TM, Breland TA (2007) Winter losses of nitrogen and phosphorus from Italian ryegrass, meadow fescue and white clover in a northern temperate climate. Agric Ecosyst Environ 120(2–4):280–290. doi:10.1016/j.agee.2006.10.001
Szumigalski A, Van Acker R (2005) Weed suppression and crop production in annual intercrops. Weed Sci 53(6):813–825
Thomsen IK, Lægdsmand M, Olesen JE (2010) Crop growth and nitrogen turnover under increased temperatures and low autumn and winter light intensity. Agric Ecosyst Environ 139(1–2):187–194. doi:10.1016/j.agee.2010.07.019
Thorup-Kristensen K, Magid J, Jensen LS (2003) Catch crops and green manures as biological tools in nitrogen management in temperate zones. Adv Agron 79:227–302
Vold A, Søreng JS (1997) Optimization of dynamic plant nitrogen uptake, using apriori information of plant nitrogen content. Biometr J 39(6):707–718
Vold A, Bakken LR, Uhlen G, Vatn A (1999a) Use of data from long-term fertilizer experiments to model plant nitrogen uptake. Nutr Cycl Agroecosyst 55(3):197–206
Vold A, Breland TA, Soreng JS (1999b) Multiresponse estimation of parameter values in models of soil carbon and nitrogen dynamics. J Agric Biol Environ Stat 4(3):290–309
Yin RK (2009) Case study research. Design and methods, 4th edn. Sage Publications, Thousand Oaks
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We greatly appreciate the field and lab assistance provided by Trygve Fredriksen and Karen Adler, programming aid of Lars Molstad and COUP simulations by Lars Egil Haugen. Gratitude is given to the farmers Gunder Skiaker and Benedicte Aschjem for their availability. Thanks to Rosa Goodman and Joel Millward-Hopkins for comments on the manuscript.
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Borgen, S.K., Lunde, H.W., Bakken, L.R. et al. Nitrogen dynamics in stockless organic clover–grass and cereal rotations. Nutr Cycl Agroecosyst 92, 363–378 (2012). https://doi.org/10.1007/s10705-012-9495-z
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DOI: https://doi.org/10.1007/s10705-012-9495-z