Water Balance Investigation of Drainage Water Management in Non-Weighing Lysimeters

dc.contributor.author Riley, Kyle
dc.contributor.author Helmers, Matthew
dc.contributor.author Helmers, Matthew
dc.contributor.author Lawlor, Peter
dc.contributor.author Singh, Rauvir
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T07:21:20.000
dc.date.accessioned 2020-06-29T22:38:44Z
dc.date.available 2020-06-29T22:38:44Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.embargo 2013-03-13
dc.date.issued 2009-01-01
dc.description.abstract <p>Artificial subsurface drainage systems are often used throughout the upper Midwest to remove excess precipitation and improve crop production. However, these drainage systems export nitrate-nitrogen (NO3-N) to downstream water resources. Management practices are needed to reduce this export of NO3-N with subsurface drainage water. One such practice being considered is the use of drainage water management where subsurface water is held in the soil profile during portions of the year. Previous research has shown that drainage water management has potential to reduce subsurface drainage volume but there is still a need to understand the performance of the practice and the pathways of water flow under varying conditions. The objectives of this study, therefore, were to quantify the pathways of water movement for conventional or free drainage (FD) and drainage water management (DWM) during the growing season. In this study, six non-weighing lysimeters (0.92 × 2.30 m) with a depth of 120 cm were monitored over a 3-yr period under natural and simulated rainfall conditions. The objectives were performed to measure the effects of drainage water management (DWM) on surface runoff, subsurface drainage, and crop yield. The in-season data from natural rainfall conditions showed that DWM reduced subsurface drainage by approximately 14%. The simulated rainfall data showed that DWM increased surface runoff by 54% when the water table was established at 90 cm below the soil surface, and by 87% when the water table was established at 60 cm below the soil surface. Overall DWM was found to have the potential to reduce subsurface drainage but there is the potential that at least a portion of this reduction may be reflected in an increase in surface runoff.</p>
dc.description.comments <p>This article is from <em>Applied Engineering in Agriculture </em>25, no. 4 (2009): <a href="http://elibrary.asabe.org/abstract.asp?aid=27470&t=3&dabs=Y&redir=&redirType=" target="_blank">507–514</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/303/
dc.identifier.articleid 1591
dc.identifier.contextkey 3899838
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/303
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1055
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/303/2009_RileyKD_WaterBalance.pdf|||Fri Jan 14 23:28:31 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Subsurface drainage
dc.subject.keywords Surface runoff
dc.subject.keywords Drainage water management
dc.title Water Balance Investigation of Drainage Water Management in Non-Weighing Lysimeters
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 26a812e6-e6de-44ff-b7ea-d2459ae1903c
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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