"Acidification of Minnesota Soils by Nitrogen Fertilization and Acid Ra" by Paul R. Bloom, William M. Schuh et al.

Article Title

Acidification of Minnesota Soils by Nitrogen Fertilization and Acid Rain

Authors

Paul R. Bloom, University of Minnesota, St. Paul
William M. Schuh, University of Minnesota, St. Paul
W. W. Nelson, University of Minnesota

Document Type

Article

Publication Date

1981

Keywords

Soil acidity; Nitrogen fertilizers; Acid rain--Environmental aspects

Abstract

The effect of inputs of acidifying nitrogen fertilizer and acid rain on the pH of a typical Minnesota prairie agricultural soil was estimated. Experimental data from a long term continuous corn experiment at the Southwest Experiment Station near Lamberton were used to calculate the effects of nitrogen fertilizers. Acid rain effects were estimated using soil buffering data obtained in the experiment along with existing estimates of rainfall acidity. In a typical corn-soybean rotation, using 100 kg per ha of nitrogen additions to corn, a 0 .25 unit pH drop is expected in about 38 years. The estimated acidity of the rainfall would cause the same pH drop in a minimum of 127 years.

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Recommended Citation

Bloom, P. R., Schuh, W. M., & Nelson, W. W. (1981). Acidification of Minnesota Soils by Nitrogen Fertilization and Acid Rain. Journal of the Minnesota Academy of Science, Vol. 47 No.2, 6-8.
Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol47/iss2/4

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Article

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