Creating carbon offsets in agriculture through no-till cultivation: A meta-analysis of costs and carbon benefits

Climatic Change

Volumn 68, Issue 1-2, 2005, Pages 41-65

  Manley, James ^a   Van Kooten, G Cornelis ^b   Moeltner, Klaus ^c   Johnson, Dale W ^c  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b UNIVERSITY OF VICTORIA   (Canada)

^c UNIVERSITY OF NEVADA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AGRICULTURE; COST EFFECTIVENESS; CULTIVATION; EROSION; FOSSIL FUELS; REGRESSION ANALYSIS; SOILS;

CARBON ACCUMULATION; CARBON CREDITS; NO-TILL CULTIVATION; TERRESTRIAL SINKS;

CARBON;

AGRICULTURAL PRACTICE; CARBON EMISSION; CARBON SINK; COST-BENEFIT ANALYSIS; EMISSION CONTROL; TILLAGE;

AGRICULTURE; CARBON; COST EFFECTIVENESS; CULTIVATION; EROSION; FOSSIL FUELS; REGRESSION ANALYSIS; SOIL;

EID: 15244346665     PISSN: 01650009     EISSN: None     Source Type: Journal    
DOI: 10.1007/s10584-005-6010-4     Document Type: Article

References (109)

1. Aleman, F.: 2001, 'Common bean response to tillage intensity and weed control strategies', Agronomy J. 93(3), 556-563.
2. Allmaras, R. R., Schomberg, H. H., Douglas, C. L., Jr. and Dao, T. H.: 2000, 'Soil organic carbon sequestration potential of adopting conservation tillage in U.S. croplands', J. Soil Water Conserv. 55(3), 365-373.
3. Angers, D. A., Bolinder, M. A., Carter, M. R., Gregorich, E. G., Drury, C. F., Liang, B. C., Voroney, R. P., Simard, R. R., Donald, R. G., Beyaert, R. P. and Martel, J.: 1997, 'Impact of tillage practices on organic carbon and nitrogen storage in cool, humid soils of eastern Canada', Soil Tillage Res. 41, 191-201.
4. Angers, D. A., Voroney, R. P. and Côté, D.: 1995, 'Dynamics of soil organic matter and corn residues affected by tillage practices', Soil Sci. Soc. Amer. J. 59, 1311-1315.
5. Anonymous: 1984, 'Costly energy, lower chemical costs will favor less tillage [savings in field preparation costs for no-till corn and soybeans, costs and returns, United States].' No-till Farmer 13(6), 4.
6. Antle, J. A. and McCarl, B. A.: 2002, 'The economics of carbon sequestration in agricultural soils', in Tietenberg, T. and Folmer, H. (eds.), The International Yearbook of Environmental and Resource Economics 2002/2003, Edward Elgar, Cheltenham, UK. pp. 278-310.
7. Asoegwu, S. N.: 1987, ' Comparison of tillage systems for the production of Egusi-melon (Colocynthus citrullus L.) and Okra (Abelmoschus esculentus L. Moench) in Eastern Nigeria', Crop Res. 27(2), 77-90.
8. Aw-Hassan, A. and Stoecker, A.: 1994, 'A public and private analysis of the costs of reducing soil erosion by reduced tillage systems', Current Farm Econ. 67(2), 23-39.
9. Bauer, S. G.: 1984, An Economic Analysis of the Onsite Benefits and Costs of Reducing Soil Erosion Through Conservation Tillage in the Camas Prairie Region of Northern Idaho. Master's Thesis, Oregon State University, Corvallis, OR.
10. Bergstrom, D. W., Monreal, C. M. and St. Jacques, E.: 2001, 'Influence of tillage practice on carbon sequestration is scale-dependent', Can. J. Soil Sci. 81(1), 63-70.
11. Bone, S. W., Rask, N., Forster, D. L. and Schurle, B. W.: 1976, 'Evaluation of tillage systems forcorn and soybeans', Ohio Rep. Res. Dev. Biol. Ag. Home Econ. 61(4), 60-63.
12. Buehring, N. W., Spurlock, S. R., Edwards, N. C., Reginelli, D. B. and Blaine, M. A.: 1988, Net Returns for Soybean Reduced Tillage Systems on Three Land Resource Areas. Special bulletin, Mississippi State, Mississippi Agricultural Forestry Experiment Station, 88(1), 72-75.
13. Campbell, C. A., Selles, F., Lafond, G. P. and Zentner, R. P.: 2001, 'Adopting zero tillage management: Impact on soil C and N under long-term crop rotations in a thin black chernozem', Can. J. Soil Sci. 81(2), 139-148.
14. Chan, K. Y., Roberts, W. P. and Heenan, D. P.: 1992, 'Organic carbon and associated soil properties of a red earth after 10 years of rotation under different stubble and tillage practices', Australian J. Soil Res. 30, 71-83.
15. Clapp, C. E., Allmaras, R. R., Layese, M. F., Linden, D. R. and Dowdy, R. H.: 2000, 'Soil organic carbon and 13C abundance as related to tillage, crop residue, and nitrogen fertilization under continuous corn management in Minnesota', Soil Tillage Res. 55(3/4), 127-142.
16. Climate Change Plan for Canada: 2002, Government of Canada. Accessed online September 25,2003, at http://www.climatechange.gc.ca/english/index.shtml.
17. 2 effects on woody plant mass, form, and physiology', Oecologia 113, 299-313.
18. Dalal, R. C.: 1989, 'Long-term effects of no-tillage, crop residue, and nitrogen application on properties of vertisol', Soil Sci. Soc. Amer. J. 53, 1511-1515.
19. Dick, W. A.: 1983,'Organic carbon, nitrogen and phosphorus concentrations and pH in soil profiles as affected by tillage intensity', Soil Sci. Soc. Amer. J. 47, 102-107.
20. Dillaha, T. A., Mostaghimi, S. and Heatwole, C. D.: 1988, Tillage Effects on Nutrient Loadings of Waterways, Special Bulletin, Mississippi State, Mississippi Agricultural. Forestry Experiment Station 88(1), 83-85.
21. Ding, G., Novak, J. M., Amarasiriwardena, D., Hunt, P. G. and Xing, B.: 2002, 'Soil organic matter characteristics as affected by tillage management', Soil Sci. Soc. Amer. J. 66, 421-429.
22. Ditsch, D. C., Trimble, R. L. and Wade, J. M.: 1988, Tillage Selection: Soil Stewardship Versus Financial Survival, Special Bulletin, Mississippi State, Mississippi Agricultural Forestry Experiment Station 88(1), 5-8.
23. Doran, J. W.: 1980, 'Soil microbial and biochemical changes associated with reduced tillage', Soil Sci. Soc. Amer. J. 44, 765-771.
24. Doran, J. W., Elliott, E. T. and Paustian, K.: 1998, 'Soil microbial activity, N cycling and long-term changes in organic carbon pools as related to fallow tillage management', Soil Till. Res. 49, 3-18.
25. Doster, D. H.: 1976, 'Economics of alternative tillage systems', Bull. Ent. Soc. Amer. 22(3), 295-297.
26. Doster, D. H., Griffith, D. R., Mannering, J. V. and Parsons, S. D.: 1983, 'Economic returns from alternative corn and soybean tillage systems in Indiana', J. Soil Water Cons. 38, 504-508.
27. Doster, D. H., Pritchard, T. W. Griffith, D. R. and Parsons, S. D.: 1993, Tillage Economics, One-Planter Farms: A Comparison of Expected Revenues and Costs, Six Tillage Systems, Two Crop Rotations, Three Representative Indiana Soils, ID, Purdue University, Agricultural Extension Service, Agricultural Experiment Station. West Lafayette, IN 191, 1-16.
28. Duffy, M. and Hanthorn, M.: 1984, Returns to Corn and Soybean Tillage Practices, Agricultural Economic Report - USDA, 1-14.
29. 2 flux measurements from a no till system in central Ohio', Soil Till. Res. 54(1/2), 21-30.
30. Epplin, F. M. and Al-Sakkaf, G. A.: 1995, 'Risk-efficient tillage systems and program participation strategies for land subject to conservation compliance', Rvw. Agr. Econ. 17, 311-321.
31. Epplin, F. M., Beck, D. E. and Krenzer, E. G. Jr.: 1991, 'Impacts of alternative winter wheat planting dates on grain yield and economics for no-till and conventional tillage systems', Current Farm Economy - Agricultural Experiment Station, Division of Agriculture, Oklahoma State University, 64(3), 3-12.
32. FAO: 'Food and fuel in a warmer world', News & Highlights, FAO Newsletter, December 4, 2001.
33. Featherstone, A. M., Fletcher, J. J., Dale, R. F. and Sinclair, H. R.: 1991, 'Comparison of net returns under alternative tillage systems considering spatial weather variability', J. Prod. Ag. 4, 166-173.
34. Follett, R. F.: 2001, 'Soil management concepts and carbon sequestration in cropland soils', Soil Till. Res. 61(1/2), 77-92.
35. Greene, W. H.: 2000, Econometric Analysis (4th edition), Prentice-Hall, Upper Saddle River, NJ.
36. Hairston, J. E., Sanford, J. O., Hayes, J. C. and Reinschmiedt, L. L.: 1984, 'Crop yield, soil erosion, and net returns from five tillage systems in the Mississippi Blackland Prairie', J. Soil Water Cons. 39, 391-395.
37. Halvorsen, A. D., Anderson, R. L. Toman, N. E. and Welsh, J. R.: 1994, 'Economic comparison of three winter wheat-fallow tillage systems', J. Prod. Ag. 7, 381-385.
38. Hansmeyer, T. L., Linden, D. R., Allan, D. L. and Huggins, D. R.: 1998, 'Determining Carbon Dynamics under No-till, Ridge-till, Chisel, and Moldboard Tillage Systems within a Corn and Soybean Cropping Sequence', in Lal, R., Kimble, J. M., Follett, R. E. and Stewart, B. A. (eds.), Management of Carbon Sequestration in Soil; Lewis Publishers, Boca Raton, FL, pp. 93-97.
39. Harman, W. L., Hardin, D. C., Wiese, A. F., Unger, P. W. and Musick, J. T.: 1985, 'No-till technology: Impacts on farm income, energy use and groundwater depletion in the plains', West. J. Agr. Econ. 10(1), 134-146.
40. Harman, W. L. and Martin, J. R.: 1988, 'An Economic Assessment of Conservation Tillage in Texas', in Hons, F. M. (ed.), Conservation Tillage in Texas, Texas Agriculture Experiment Station, College Station, TX, Texas A&M Univ. System.
41. Hendrix, P. F., Franzluebbers, A. J. and McCracken, D. V.: 1998, 'Management effects on C accumulation and loss in soils of the southern appalachian piedmont of Georgia', Soil Till. Res. 47, 245-251.
42. Hinman, H. R., Mohasci, S. G. and Young, D. L.: 1983, 'Impact of tenure status on economic incentives for conservation tillage', J. Soil Water Cons. 38, 287-290.
43. Hsiao, C.: 1986, Analysis of Panel Data, Econometric Society Monographs 11, Cambridge University Press, New York.
44. IPCC (Intergovernmental Panel on Climate Change): 1997, Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories: Reference Manual, in Houghton, J. T., Meira, L. G., Filho, L. G., Lim, B., Treanton, K., Mamaty, I., Bonduki, Y., Griggs, D. J. and Callender, B. A. (eds.), Intergovernmental Panel on Climate Change, Volume 3 (quoted in Six et al., 2002).
45. IPCC (Intergovernmental Panel on Climate Change): 2000, Land Use, Land-use Change, and Forestry, Cambridge University Press, New York.
46. Ismail, I., Blevins, R. I. and Frye, W. W.: 1994, 'Long-term no-tillage effects on soil properties and continuous corn yields', Soil Sci. Soc. Amer. J. 58, 193-198.
47. Johnson, D. W. and Todd, D. E., Jr.: 1998, 'Harvesting effects on long-term changes in nutrient pools of mixed oak forest', Soil Sci. Soc. Amer. J. 62, 1725-1735.
48. Jolly, R. W., Edwards, W. M. and Erbach, D. C.: 1983, 'Economics of conservation tillage in Iowa', J. Soil Water Cons. 38, 291-294.
49. Jones, O. R., Harman, W. L. and Smith, S. J.: 1987, 'Agronomic and economic performance of conservation-tillage systems on dryland', in Optimum Erosion Control at Least Cost: Proceedings of the National Symposium on Conservation Systems, American Society of Agricultural Engineers, St. Joseph, Michigan, pp. 332-341.
50. Keeling, J. W., Wendt, C. W., Gannaway, J. R., Onken, A. B., Lyle, W. M., Lascano, R. J. and Abernathy, J. R.: 1988, Conservation Tillage Cropping Systems for the Texas Southern High Plains, Special Bulletin, Mississippi State, Mississippi Agricultural Forestry Experiment Station 88(1), 19-21.
51. Kern, J. and Johnson, M.: 1993, 'Conservation tillage impacts on national soil and atmospheric carbon levels', Soil Sci. Soc. Amer. J. 57, 200-210.
52. Kessavalou, A., Mosier, A. R., Doran, J. W., Drijber, R. A., Lyon, D. J. and Heinemeyer, O.: 1998, 'Fluxes of carbon dioxide, nitrous oxide, and methane in grass sod and winter wheat fallow tillage management', J. Env. Qual. 27(5), 1094-1104.
53. King, A. D.: 1985, 'Conservation Tillage: Things to Consider, Agriculture Information Bulletin - USDA 461, pp. 23.
54. Klemme, R. M.: 1983, 'An economic analysis of reduced tillage systems in corn and soybean production', J. Amer. Soc. Farm Mgr. Rural Appraisers 47, 37-44.
55. Klemme, R. M.: 1985, 'A Stochastic dominance comparison of reduced tillage systems in corn and soybean production under risk', Amer. J. Agr. Econ. 67(3), 550-562.
56. Krause, M. A. and Black, J. R.: 1995, 'Optimal adoption strategies for no-till technology in Michigan', Rev. Agr. Econ. 17(3), 299-310.
57. Kurkalova, L. A., Kling, C. L. and Zhao, J.: 2001, The Subsidy for Adopting Conservation Tillage: Estimation from Observed Behavior, Working Paper 01-WP 286, Center for Agricultural and Rural Development, Iowa State University.
58. Lal, R., Kimble, L. M., Follett, R. F. and Cole, C. V.: 1998, The Potential of U.S. Cropland to Sequester C and Mitigate the Greenhouse Effect, Ann Arbor Press, Chelsea, MI.
59. Lamb, J. A., Peterson, G. A. and Fenster, C. R.: 1985, 'Wheat fallow systems' effect on a newly cultivated grassland soils' nitrogen budget', Soil Sci. Soc. Amer. J. 49, 352-356.
60. Larney, F. J., Bremer, E., Janzen, H. H., Johnston, A. M. and Lindwall, C. W.: 1997, 'Changes in total, mineralizable and light-fraction soil organic matter with cropping and tillage intensities in semiarid southern Alberta, Canada', Soil Till. Res. 42, 229-240.
61. Lerohl, M. L. and van Kooten, G. C.: 1995, 'Is soil erosion a problem on the Canadian Prairies?', Prairie Forum 20, 107-121.
62. Liu, S. and Duffy, M. D.: 1996, 'Tillage systems and profitability: An economic analysis of the Iowa MAX Program', J. Prod. Ag. 9(4), 522-527.
63. Lupwayi, N. Z., Rice, W. A. and Clayton, G. W.: 1999, 'Soil microbial biomass and carbon dioxide flux under wheat as influenced by tillage and crop rotation', Can. J. Soil Sci. 79(2), 273-280.
64. Mann, C.: 1990, 'Meta-analysis in the Breech', Science 249, 476-480.
65. Martin, M. A., Schreiber, M. M., Riepe, J. R. and Bahr, J. R.: 1991, 'The economics of alternative tillage systems, crop rotations, and herbicide use on three representative east-Central corn belt farms', Weed Sci. 39(2), 299-307.
66. Nakao, M., Sohngen, B., Brown, L. and Leeds, R.: 1999, The Economics of Vegetative Filter Strips, OSU Extension Fact Sheet AE-6-99.
67. Norwood, C. A. and Currie, R. S.: 1998, 'An agronomic and economic comparison of wheat-corn-fallow and wheat-sorghum-fallow rotations', J. Prod. Ag. 11(1), 67-73.
68. Norwood, C. A. and Dhuyvetter, K. C.: 1993, 'An economic comparison of the wheat-fallow and wheat-sorghum-fallow cropping systems', J. Prod. Ag. 6, 261-266.
69. Nyborg, M., Solberg, E. D., Malhi, S. S., Izaurralde, R. C. and Fertilizer, N.: 1995, 'Crop Residue, and Tillage Alter Soil C and N Content in a Decade', in Lal, R., Kimble, J. Levine, E. and Stewart, B. A. (eds.), Soil Management and Greenhouse Effect, Lewis Publishers, Boca Raton, FL, pp. 93-99.
70. Ohannesian, J. and Elterich, G. J.: 1979, Economic Analysis of Alternative Tillage Systems for Delaware Grain Farms, Bulletin of the Delaware Agricultural Experiment Station, Newark, The Station.
71. Olson, Kent D. and Weber, C.: 1990, Impacts of Alternative Tillage, Fertilization, and Herbicide Application Methods on Corn Production Costs and Returns, Department of Agricultural and Applied Economics, University of Minnesota, St. Paul, MN.
72. 2 emissions', Soil Use Mgmt. 13(4, supp.), 230-244.
73. Pautsch, G. R., Kurkalova, L. A., Babcock, B. A. and Kling, C. L.: 2001, 'The efficiency of sequestering carbon in agricultural soils', Contemp. Eco. Policy 19(2), 123-134.
74. Pearce, A. D., Dillon, C. R., Keisling, T. C. and Wilson, C. E., Jr: 1999, 'Economic and agronomic effects of four tillage practices on rice produced on saline soils', J. Prod. Ag. 12(2), 305-312.
75. Peterson, G. A., Halvorson, A. D., Havlin, J. L., Jones, O. R., Lyon, D. J. and Tanaka, D. L.: 1998, 'Reduced tillage and increasing cropping intensity in the great plains conserves soil C', Soil Till. Res. 47, 207-218.
76. Phillips, R. E., Blevins, R. L., Thomas, G. W., Frye, W. W. and Phillips, S. H.: 1980, 'No-tillage agriculture', Science 208, 1108-1113.
77. Phillips, S. R., Olson, K. R., Siemens, J. C. and Ebelhar, S. A.: 1997, 'Economics of conservation tillage systems for CRP land in southern Illinois', J. Prod. Ag. 10(3), 483-489.
78. Potter, K. N., Torbert, H. A., Jones, O. R., Matocha, J. E., Morrison, J. E., Jr and Unger, P. W.: 1998, 'Distribution and amount of soil organic carbon in long-term management systems in Texas', Soil Till. Res. 47, 309-321.
79. Sainju, U. M., Singh, B. P. and Whitehead, W. F.: 2002, 'Long-term effects of tillage, cover crops, and nitrogen fertilization on organic carbon and nitrogen concentrations in sandy loam soils in Georgia, USA', Soil Till. Res. 63(3/4), 167-179.
80. Salinas-Garcia, J. R., Hons, F. M., Matocha, J. E. and Zuberer, D. A.: 1997, 'Soil carbon and nitrogen dynamics as affected by long-term tillage and nitrogen fertilization', Biol. Fertil. Soils. 25(2), 182-188.
81. Sandor, R. L. and Skees, J. R.: 1999, 'Creating a market for carbon emissions: Opportunities for U.S. farmers', Choices, 13-17.
82. Sanford, J. O., Hairston, J. E. and Reinschmiedt, L. L.: 1982, 'Soybean-Wheat Double Cropping: Tillage and Straw Management Glycine max, Triticum aestivum, Yield, Costs, Returns, Mississippi', Research Report, Mississippi Agricultural and Forestry Experiment Station. 7(14), 4 p.
83. Sedjo, R. A. and Marland, G.: 2003, 'Inter-trading permanent emissions credits and rented carbon emissions offsets: Some issues and alternatives', Clim. Policy 3(4), 435-444.
84. Segarra, E., Keeling, J. W. and Abernathy, J. R.: 1991, 'Tillage and cropping system effects on cotton yield and profitability on the Texas southern high plains', J. Prod. Agric. 4(4), 566-571.
85. Six, J., Elliott, E. T. and Paustian, K.: 1999, 'Aggregate and soil organic matter dynamics under conventional and no-tillage systems', Soil Sci. Soc. Amer. J. 63(5), 1350-1358.
86. Six, J., Feller, C., Denef, K., Ogle, S. M., de M. Sa, J. C. and Albrecht, A.: 2002, 'Soil organic matter, biota and aggregation in temperate and tropical soils- Effects of no-tillage', Agronomie 22, 755-775.
87. Smith, E. G., Peters, T. L., Blackshaw, R. E., Lindwall, C. W. and Larney, F. J.: 1996, 'Economics of reduced tillage in crop-fallow systems', Can. J. Soil Sci. 76, 411-416.
88. Smith, E. G. and Young, D. L.: 1999, 'Requiem for Summer Fallow in Western North America?, Draft paper, Department of Agricultural Economics, Washington State University, Pullman, Washington, 8 pp.
89. Smith, M. A., Carter, P. R. and Imholte, A. A.: 1992, 'No-till vs. conventional tillage for late-planted corn following hay harvest', J. Prod. Ag. 5(2), 261-264.
90. Smith, V. K. and Kaoru, Y.: 1990, 'Signals or noise? Explaining the variation in recreation benefit estimates', Amer. J. Agr. Econ. 72, 419-433.
91. Smolik, J. D. and Dobbs, T. L.: 1991, 'Crop yields and economic returns accompanying the transition to alternative farming systems', J. Prod. Ag. 4(2), 153-161.
92. Stanley, T. D.: 2001, 'Wheat from chaff: Meta-analysis as quantitative literature review', J. Econ. Persp. 15, 131-150.
93. Thomas, G. W.: 1985, 'The Future of No-Tillage', in Hargrove, W. L., Boswell, F. C. and Langdale, G. W. (eds.), Proceedings of the 1985 Southern Region No-Till Conference, July 16-17, 1985, Griffin, Georgia, Agricultural Experiment Stations, University of Georgia, Athens, Georgia, pp. 242-247.
94. Torbert, H. A., Potter, K. N. and Morrison, J. E., Jr: 1998, 'Tillage intensity and crop residue effects on nitrogen and carbon cycling in a vertisol', Comm. Soil Sci. Plant Analysis. 29, 717-727.
95. Uri, N. D.: 2001, 'The potential impact of conservation practices in US agriculture on global climate change', J. Sust. Ag. 18(1), 109-131.
96. Wanniarachchi, S. D., Voroney, R. P., Vyn, T. J., Beyaert, R. P. and MacKenzie, A. F.: 1999, 'Tillage effects on the dynamics of total and corn-residue-derived soil organic matter in two southern Ontario sous', Can. J. Soil Sci. 79, 473-480.
97. Weersink, A., Walker, M., Swanton, C. and Shaw, J.: 1992, 'Economic comparison of alternative tillage systems under risk', Can. J. Agr. Econ. 40(2), 199-217.
98. West, T. O. and Marland, G.: 2002, 'A synthesis of carbon sequestration, carbon emissions, and net carbon flux in agriculture: Comparing tillage practices in the United States', Agr. Ecosyst. Env. 91, 217-232.
99. Wiese, A. F., Bean, B. W., Salisbury, C. D., Schoenhals, M. G. and Amosson, S.: 1997, 'Economic evaluation of field bindweed (Convolvulus arvensis) control', Weed Sci. 45(2), 288-295.
100. Wiese, A. F., Harman, W. L., Bean, B. W. and Salisbury, C. D.: 1994, 'Effectiveness and economics of dryland conservation tillage systems in the southern Great Plains", Agron. J. 86(4), 725-730.
101. Wiese, A. F., Marek, T. and Harman, W. L.: 1998, 'No-tillage increases profit in a limited irrigation-dryland system', J. Prod. Ag. 11(2), 247-252.
102. Williams, J. R., Llewelyn, R. V. and Barnaby, G. A.: 1990, 'Risk analysis of tillage alternatives with government programs', Amer. J. Agr. Econ. 72(1), 172-181.
103. Yang, X. M. and Kay, B. D.: 2001, 'Impacts of tillage practices on total, loose- and occluded-particulate, and humified organic carbon fractions in soils within a field in southern Ontario', Can. J. Soil Sci.. 81(2), 149-156.
104. Yang, X. M. and Wander, M. M.: 1999, 'Tillage effects on soil organic carbon distribution and storage in a silt loam soil in Illinois', Soil Till. Res. 52(1/2), 1-9.
105. Yiridoe, E. K., Weersink, A., Roy, R. C. and Swanton, C. J.: 1993, 'Economic analysis of alternative cropping systems for a bean/wheat rotation on light-textured soils', Can. J. Plant Sci. 73(2), 405-415.
106. Young, D. L., Hinman, H. R. and Schillinger, W. F.: 2001, 'Economics of winter wheat-summer fallow vs. continuous no-till spring wheat in the Horse Heaven Hills, Washington', Farm Business Management Reports, EB 1907, Washington State University Cooperative Extension.
107. Zantinge, A. W., Stonehouse, D. P. and Ketcheson, J. W.: 1986, 'Resource requirements, yields and profits for monocultural corn with alternative tillage systems in southern canada', Soil Till. Res. 8, 201-209.
108. Zentner, R. P., McConkey, B. G., Campbell, C. A., Dyck, F. B. and Selles, F.: 1996, 'Economics of conservation tillage in the semiarid Prairie', Can. J. Plant Sci. 76(4), 697-705.
109. Zentner, R. P., Tessier, S., Peru, M., Dyck, F. B. and Campbell, C. A.: 1991, 'Economics of tillage systems for spring wheat production in southwestern Saskatchewan', Soil Till. Res. 21, 225-242.