Summary
Nitrogen fertilizer was applied to field plots at rates of 0, 50, 100, 150 and 200 N kg/ha yr, in order to determine the effects of differentiated N applications on drainage water and groundwater quality. Water samples, collected monthly or bimonthly from 1974 to 1983, were analysed for inorganic and total N content. In order to see the impact of residual N on leaching losses, soil samples were collected to a depth of 2 m in the N0, N100 and N200 plots, usually in September and April.
Leaching of nitrate was moderate to the N100 level but increased substantially with increasing fertilization, up to 91 N kg/(ha-yr) for the highest application rate (N200), during the wet year of 1980/81. The losses were greatest during the fall, mainly due to high levels of N remaining in the soil after harvest combined with high precipitation. The N content of the groundwater did not show any significant correlation to the fertilization intensity.
A buildup of inorganic N in the soil occurred only when excessive amounts of fertilizer were applied (N200), while the contents of the N0 and N100 treatments fluctuated around states of balance, approximately 45 and 70 N kg/ha respectively.
Spring rape followed by winter wheat showed a great ability to reduce N contents in the tile effluent from highly fertilized plots (N150 and N200), even though the plots had received excessive amounts of fertilizer for several years.
Results of this experiment in central Sweden demonstrate the importance of applying nitrogen fertilizer in balance with crop needs and of maintaining a growing crop cover as much of the time as possible in order to minimize water pollution.
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References
Avnimelech Y and Raveh J 1976 Nitrate leakage from soils differing in texture and nitrogen load. J. Environ. Qual. 1, 79–82.
Baker J C and Johnson H P 1981 Nitrate-nitrogen in tile drainage as affected by fertilization. J. Environ. Qual. 4, 519–522.
Brink N 1968 Self-purification in an open ditch. Water Research 2, 481–503.
Brink N, Gustafson A and Persson G 1978 Losses of nutrients from arable land Ekohydrologi 1, 1–60 (In Swedish). Uppsala: Swedish University of Agricultural Sciences.
Brink N and Lindén B 1980 Where does the commercial fertilizer go? Ekohydrologi 7 3–20 (In Swedish). Uppsala: Swedish University of Agricultural Sciences.
Brink N 1982 Measurement of mass transport from arable land in Sweden.In Movement and Interaction of Nitrates and Pesticides in the Vegetation Cover, Soil, Groundwater, Rock System. Proceedings of a congress by the International Association of Hydrologists, pp 59–70. Prague: Unesco/IAH.
Boswell F C and Anderson O E 1964 Nitrogen movement in undisturbed profiles of fallowed soils. Agron. J. 56, 278–281.
Fredriksson L 1958 Chemical analyses of soils and pot experiments parallel to field experiments at Lanna experimental station. Stat. Jordbruksförsök Report 96, 1–35 (In Swedish).
Gast R G, Nelson W W and MacGregor J M 1974 Nitrate and chloride accumulation and distribution in fertilized tile-drained soils. J. Environ. Qual. 3 209–214.
Gast R G, Nelson W W and Randall G W 1978 Nitrate accumualtion in soils and loss in tile drainage following nitrogen applications to continous corn. J. Environ. Qual. 7, 258–261.
Gustafson A 1983 Leaching of nitrogen from arable land into ground-water in Sweden. Environ. Geology 2, 65–71.
Kissel D E, Ritchie J T and Burnett E 1974 Nitrate and chloride leaching in a swelling clay soil. J. Environ. Qual. 4, 401–405.
Kjellerup V 1983 The influence of N-fertilization on the nitrogen content of the drainge water 1973–81. Statens Planteavlsforsög, Report 1736 (In Danish).
Lindén B 1977 Equipment for collection of soil samples from arable land. Department of Soil Sciences, Section for Plant Nutrients Report 96, 1–29 (In Swedish). Uppsala: Swedish University of Agricultural Sciences.
MacLean A J 1977 Movement of nitrate with different cropping systems in two soils. Can. J. Soil. Sci. 57, 27–33.
Schuman G E, McCalla T M, Saxton K E and Knox H T 1975 Nitrate and its distribution in the soil profile of differentially fertilized corn water sheds. Soil Sci. Soc. Amer. Proc. 39, 1192–1197.
Standford G and Epstein E 1974 Nitrogen mineralization—water relations in soils. Soil Sci. Soc. Amer. Proc. 38, 103–107.
Swedish Standards 1976 Water analyses SIS 028131-SIS 028134 (In Swedish).
Vetter H and Steffens G 1981 Nährstoffsverlangerung und Nährstoffeintrag in das oberflächennahe Grundwasser nach Güllendüngung. Zeitschrift für Kulturtechnik und Flurbereinigung 22, 159–172.
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Bergström, L., Brink, N. Effects of differentiated applications of fertilizer N on leaching losses and distribution of inorganic N in the soil. Plant Soil 93, 333–345 (1986). https://doi.org/10.1007/BF02374284
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DOI: https://doi.org/10.1007/BF02374284