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Intensive potato production effects on nitrate-n concentrations of rural New Brunswick well water
Authors: J.E. Richards, P.H. Milburn, A.A. MacLean and G.P. DeMerchant
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Download file: https://library.csbe-scgab.ca/docs/journal/32/32_2_189_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 32 (1990)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/32/32_2_189_raw.pdf
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Description: This study was conducted to determine if the intensity of agricultural land use, in particular potato production, was related to NO3-N concentrations in private rural groundwater wells in New Brunswick. A secondary objective was to determine if the concentra tionsof NO3-Nchanged over 15 yr in these wells. Samplesof 47 wells were taken from 1973 to 1976 and in 1988 from farms in three agricultural regions in northwestern New Brunswick. Wells in a rural non-agricultural region near Fredericton were sampled in 1988. The most intensely cropped region (St. Andre) had 20 - 25 %of its land area cropped to potatoes, the other two agricultural regions had sub stantially less area cropped to potatoes (7 - 9 %). Mean NO3-N concentrations were least in the Fredericton region (1.1 mg L"1) and greatest inthe St Andre region (9.5 mg L"1). Elevated NO3-N concen trationswere due to non-point effects, average NO3-Nconcentrations of the three agricultural study regions were unaltered when waters containing more than 10 conform bacteria per 100mL were removed fromanalysis,suggesting that NO3-Nin well waters was derived from soil-N or fertilizer-N. The mean concentration of NO3-N in wells of thestudy agricultural regions wasassociated withtheproportion of the land base cropped topotatoes. In oneof theagricultural study regions, the mean concentration of NO3-N decreased over the course of the studywhilethere wasno significantchangein NO3-N concentrations in the other two agricultural study regions.
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Citation: J.E. Richards, P.H. Milburn, A.A. MacLean and G.P. DeMerchant 1990. INTENSIVE POTATO PRODUCTION EFFECTS ON NITRATE-N CONCENTRATIONS OF RURAL NEW BRUNSWICK WELL WATER. Canadian Agricultural Engineering 32(2):189-196.
Volume: 32
Issue: 2
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Date: 1990
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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DOI:
Description: This study was conducted to determine if the intensity of agricultural land use, in particular potato production, was related to NO3-N concentrations in private rural groundwater wells in New Brunswick. A secondary objective was to determine if the concentra tionsof NO3-Nchanged over 15 yr in these wells. Samplesof 47 wells were taken from 1973 to 1976 and in 1988 from farms in three agricultural regions in northwestern New Brunswick. Wells in a rural non-agricultural region near Fredericton were sampled in 1988. The most intensely cropped region (St. Andre) had 20 - 25 %of its land area cropped to potatoes, the other two agricultural regions had sub stantially less area cropped to potatoes (7 - 9 %). Mean NO3-N concentrations were least in the Fredericton region (1.1 mg L"1) and greatest inthe St Andre region (9.5 mg L"1). Elevated NO3-N concen trationswere due to non-point effects, average NO3-Nconcentrations of the three agricultural study regions were unaltered when waters containing more than 10 conform bacteria per 100mL were removed fromanalysis,suggesting that NO3-Nin well waters was derived from soil-N or fertilizer-N. The mean concentration of NO3-N in wells of thestudy agricultural regions wasassociated withtheproportion of the land base cropped topotatoes. In oneof theagricultural study regions, the mean concentration of NO3-N decreased over the course of the studywhilethere wasno significantchangein NO3-N concentrations in the other two agricultural study regions.
Keywords:
Résumé:
Mots-clés:
Citation: J.E. Richards, P.H. Milburn, A.A. MacLean and G.P. DeMerchant 1990. INTENSIVE POTATO PRODUCTION EFFECTS ON NITRATE-N CONCENTRATIONS OF RURAL NEW BRUNSWICK WELL WATER. Canadian Agricultural Engineering 32(2):189-196.
Volume: 32
Issue: 2
Pages -
Contributor:
Date: 1990
Technical field:
Conference name:
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type:
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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