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Alternative production systems to reduce nitrates in ground water

Published online by Cambridge University Press:  30 October 2009

Robert I. Papendick
Affiliation:
Soil scientists, Agricultural Research Service, U.S. Department of Agriculture, Pullman, WA 99164-6421.
Lloyd F. Elliott
Affiliation:
Soil scientists, Agricultural Research Service, U.S. Department of Agriculture, Pullman, WA 99164-6421.
James F. Power
Affiliation:
Soil scientist, Agricultural Research Service, U.S. Department of Agriculture, Lincoln, NE 68583-0915.
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Abstract

Evidence indicates a strong positive relationship between increases in nitrogen fertilizer use on cropland and nitrate concentrations in shallow ground water. This raises concern about the fate and efficiency of nitrogen fertilizer with current farming practices. Approximately 50 percent of the nitrogen fertilizer applied may be recovered by agronomic crops and 35 percent or less removed in the harvested grain of a crop such as corn. The residual nitrogen is subject to loss by several processes, one being leaching from the crop root zone. Alternative production systems that provide ground water protection must give attention to improved management of nitrogen fertilizer and to practices that minimize the need for nitrogen fertilizer and reduce soil nitrate concentrations. Most important in nitrogen fertilizer management is to more closely match nitrogen availability in the soil with crop needs and to avoid over-fertilization. Nitrogen fertilizer use can be reduced by alternate cropping of low and high nitrogen-demanding crops, use of legumes in the crop rotation to fix nitrogen, and proper use of manures, crop residues, and other organic wastes. Residual nitrates in soil can be reduced by use of cover crops, nitrogen-scavenging crops in the rotation, and alternating shallow and deep-rooted crops. Conservation tillage alone as used with many conventional cropping systems will probably not change the current status of nitrate leaching. Practices used by organic farmers should be carefully studied as possible approaches for ground water protection and adaptation into conservation tillage systems for conserving soil and water resources.

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Articles
Copyright
Copyright © Cambridge University Press 1987

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References

1.Agricultural Statistics. 1985. U.S. Department of Agriculture. United States Government Printing Office, Washington, DC.Google Scholar
2.Allen, S. E., Terman, G. L., and Kennedy, H. G.. 1978. Nutrient uptake by grass and leaching losses from soluble and S-coated urea and K. Agron. J. 70:264268.CrossRefGoogle Scholar
3.Baker, J. L., and Johnson, H. P.. 1983. Evaluating the effectiveness of BMP's from field studies. In Schaller, R. W. and Bailey, G. W. (eds.) Agricultural Management and Water Quality. Iowa State Univ. Press, Ames.Google Scholar
4.Baldock, J. O., Higgs, R. L., Paulson, W. H., Jacobs, J. A., and Shrader, W. D.. 1981. Legume and mineral N effects on crop yields in several crop sequences in the upper Mississippi Valley. Agron. J. 73: 885890.Google Scholar
5.Bristow, K. L., Campbell, G. S., Papendick, R. I., and Elliott, L. F.. 1986. Simulation of heat and moisture transfer through a residue-soil system. Agriculture and Forest Meteorology. 36:193214.CrossRefGoogle Scholar
6.Campbell, C. A., Read, D. W. L., Biederbeck, V. O., and Winkleman, G. E.. 1983. The first 12 years of long term crop rotation study in southwestern Saskatchewan: Nitrate-N distribution in soil and N uptake by the plant. Canadian J. Soil Sci. 63:563578.Google Scholar
7.Doran, J. W. 1980. Soil microbial and biochemical changes associated with reduced tillage. Soil Sci. Soc. Amer. J. 44:765771.CrossRefGoogle Scholar
8.Fox, R. H., and Bandel, V. A.. 1986. Nitrogen utilization with no-tillage. In Sprague, M. A. and Triplett, G. B. (eds.) No-Tillage and Surface-Tillage Agriculture - The tillage revolution. John Wiley and Sons, New York. pp. 117148.Google Scholar
9.Hallberg, G. R. 1986. From hoes to herbicides: Agriculture and ground water quality. J. Soil and Water Conserv. 41:357364.Google Scholar
10.Hooker, M. L., Herron, G. M., and Penas, P.. 1982. Effects of residue burning, removal, and incorporation on irrigated cereal crop yields and soil chemical properties. Soil Sci. Soc. Amer. J. 46:122126.CrossRefGoogle Scholar
11.Johnson, J. W., Welch, L. F., and Kurtz, L. T.. 1975. Environmental implications of N fixation by soybeans. J. Environ. Qual. 4:303306.CrossRefGoogle Scholar
12.Keeney, D. R. 1982. Nitrogen management for maximum efficiency and minimum pollution. In Stevenson, F. J. (ed.) Nitrogen in Agricultural Soils. Agron. Monogr. 22. Amer. Soc. Agron., Madison, Wisconsin. pp. 605649.Google Scholar
13.Liegel, E. A., and Walsh, L. M.. 1976. Evaluation of sulfur-coated urea (SCU) applied to irrigated potatoes and corn. Agron. J. 68:457463.CrossRefGoogle Scholar
14.Madison, R. J., and Brunett, J. O.. 1984. Overview of the occurrence of nitrate in ground water of the United States. In National Water Summary, 1984. U.S. Geological Survey Water Supply Paper 2275. pp. 93105.Google Scholar
15.National Research Council. 1978. Nitrates: An environmental assessment. National Acad. Sci., Washington, DC.Google Scholar
16.Papendick, R. I., and Elliott, L. F.. 1984. Tillage and cropping systems for erosion control and efficient nutrient utilization. In Bezdicek, D. F., Power, J. F., Keeney, D. R., and Wright, M. J. (eds.) Organic Farming - Current technology and its role in a sustainable agriculture. ASA Special Publication No. 46. Amer. Soc. Agron., Madison, Wisconsin, pp. 6981.Google Scholar
17.Power, J. F. 1981. Nitrogen in the cultivated ecosystem. In Clark, F. E. and Rosswall, R. (eds.) Terrestrial nitrogen cycles - processes, ecosystem strategies and manpower impacts. Ecol. Bull. No. 33. Swedish Natural Science Research Council, Stockholm, pp. 529546.Google Scholar
18.Power, J. F. (ed.). 1987. The Role of Legumes in Conservation Tillage Systems. Soil Cons. Soc. Amer., Ankeny, Iowa. 153 pp.Google Scholar
19.Power, J. F., and Papendick, R. J.. 1985. Organic sources of nutrients. In Engelstad, O. P., Boswell, F. C., Welch, L. F., and Tucker, T. C. (eds.) Fertilizer Technology and Use. (3rd Edition). Soil Sci. Soc. Amer., Madison, Wisconsin, pp. 503520.Google Scholar
20.Power, J. F., Wilhelm, W. W., and Doran, J. W.. 1986. Recovery of fertilizer nitrogen by wheat as affected by fallow method. Soil Sci. Soc. Amer. J. 50:14991503.CrossRefGoogle Scholar
21.Rice, C. W., and Smith, M. S.. 1984. Short-term immobilization of fertilizer N at the surface of no-till soils. Soil Sci. Soc. Amer. J. 48:295297.CrossRefGoogle Scholar
22.Schepers, J. S. 1982. Use of agricultural BMP's to control groundwater nitrogen. In D. M. Nielsen and L. Allen (eds.) Proc. 6th National Groundwater Conference. Nat'l. Water Well Assoc., Worthington, OH. pp. 8588.Google Scholar
23.Stewart, B. A., Viets, F. G. Jr., and Hutchinson, G. L.. 1968. Agriculture's effect on nitrate pollution of groundwater. Jour. Soil and Water Conserv. 23:1315.Google Scholar
24.Stewart, B. A., Woolhiser, D. A., Wischmeier, W. H., Caro, J. H., and Frere, M. H.. 1975. Control of water pollution from cropland. Volume I. A manual for guideline development. Report No. EPA-600/2-75-026a and ARS H-5-1, USEPA, USDA, Washington, DC.Google Scholar
25.Stewart, B. A., Woolhiser, D. A., Wischmeier, W. H., Caro, J. H., and Frere, M. H.. 1976. Control of water pollution from cropland. Volume II. An overview. Report No. EPA-600/2-75-026b and ARS H-5-2, USEPA, USDA, Washington, DC.Google Scholar
26.Swoboda, A. R. 1977. Nitrate movement in clay soils and methods of pollution control. In J. P. Law and G. V. Skogerboe (eds.) Proceedings of National Conference on Irrigation Return Flow Quality Management. Colorado State University, Ft. Collins, pp. 1925.Google Scholar
27. U.S. Department of Agriculture. 1980. Report and recommendations on organic fanning. Prepared by USDA study team, July 1980. 3100–944/96. U.S. Government Printing Office, Washington, DC.Google Scholar
28.Voss, R. D., and Shrader, W. D.. 1984. Rotation effects and legume sources of nitrogen for corn. In Bezdicek, D. F., Power, J. F., Keeney, D. R., and Wright, M. J. (eds.) Organic Farming: Current technology and its role in a sustainable agriculture. ASA Special publication No. 46. Amer. Soc. Agron., Madison, Wisconsin, pp. 6168.Google Scholar