Effect of irrigation management on nitrate movement under a drip irrigated lettuce crop
Paper
Paper/Presentation Title | Effect of irrigation management on nitrate movement under a drip irrigated lettuce crop |
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Presentation Type | Paper |
Authors | Althaus, Kimberley (Author), McKeering, Loretta M. (Author), McHugh, Allen (Author) and Raine, Steven R. (Author) |
Editors | Banhazi, T. M. and Saunders, C. |
Journal or Proceedings Title | Proceedings of the 2009 CIGR International Symposium of the Australian Society for Engineering in Agriculture (SEAg 2009) |
Number of Pages | 8 |
Year | 2009 |
Place of Publication | Brisbane, Australia |
ISBN | 9780858259096 |
Web Address (URL) of Paper | http://search.informit.com.au/documentSummary;dn=575759793492400;res=IELENG |
Conference/Event | SEAg 2009: Agricultural Technologies In a Changing Climate |
Event Details | SEAg 2009: Agricultural Technologies In a Changing Climate Event Date 13 to end of 16 Sep 2009 Event Location Brisbane, Australia |
Abstract | Irrigation management practices have a significant impact on the leaching of nutrients and salts within a soil profile. Crops such as lettuce, which are highly dependent on irrigation water for their effective growth and high quality yield, are particularly susceptible to high levels of nutrient leaching below the root zone. To ascertain the effect of irrigation management on nitrate movement soil, water and solute data was collected from a sprinkler and drip irrigated field of lettuce grown on a Ferrosol. This work has shown that deep drainage did occur during the season and that nitrate did leach below the root zone. Substantial spatial and temporal variations in nitrate and EC in the soil solution were observed which appear to be related to the pattern of water movement associated with the irrigation applications. Significant differences in nitrate concentration and EC were also found depending on the type and depth of placement of soil solution extractor used. |
Keywords | nitrogen; lettuce; irrigation management; leaching |
ANZSRC Field of Research 2020 | 370704. Surface water hydrology |
300802. Horticultural crop growth and development | |
300201. Agricultural hydrology | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | National Centre for Engineering in Agriculture |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0y01/effect-of-irrigation-management-on-nitrate-movement-under-a-drip-irrigated-lettuce-crop
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