Seasonal changes in flow and nitrate-N loss from subsurface drains

Date
1996
Authors
Bjorneberg, David
Kanwar, Ramesh
Melvin, Stewart
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Altmetrics
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Abstract

Subsurface drainage from thirty-six, 0.4-ha plots was monitored for three years (1990 to 1992) from chisel plow, moldboard plow, ridge till, and no-till systems with continuous corn and corn-soybean rotations. Data were analyzed in four seasonal stages to determine variations in drain flows and nitrate-N contents in drain effluent. The hypothesis of this study was that differences among tillage systems would change during the monitoring season as rainfall patterns varied and as plots were fertilized and cultivated.

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This article was published in Transactions of the ASAE 39(3): 961–967, doi:10.13031/2013.27582.

Keywords
Subsurface drainage, Nitrate-nitrogen, Tillage, Seasonal changes, Bypass flow
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