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Nitrogen and acid soils.

Acid precipitation, as rain or snow, has been shown to affect freshwater lakes and streams and possibly forests. It may also contribute to making agricultural soils more acidic. However, a report in AMBIO (Vol. 14, No. 6) indicates that fertilizers rich in ammonium ions in particular, together with the enchanced biological activity promoted by any nitrogen fertilizer, acidify soil more than acid deposition does. "Thus, nitrogen may present a threat to the long-term health of the soil," Lars Bergstrom and Arne Gustafson of the Swedish University of Agricultural Sciences in Uppsala say in the report.
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Title Annotation:fertilizers found to acidify soil
Publication:Science News
Date:Jan 25, 1986
Words:95
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