Comparison of nitrogen fertilization methods and rates for subsurface drip irrigated corn in the semi-arid Great Plains

Tarkalson, D. D. and Payero, J. O. (2008) Comparison of nitrogen fertilization methods and rates for subsurface drip irrigated corn in the semi-arid Great Plains. Transactions of the ASABE (American Society of Agricultural Engineers), 51 5: 1633-1643. doi:10.13031/2013.25320

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ245174_OA1.pdf Full text (open access) application/pdf 401.26KB 3

Author Tarkalson, D. D.
Payero, J. O.
Title Comparison of nitrogen fertilization methods and rates for subsurface drip irrigated corn in the semi-arid Great Plains
Journal name Transactions of the ASABE (American Society of Agricultural Engineers)   Check publisher's open access policy
ISSN 0001-2351
2151-0032
2151-0040
Publication date 2008-09
Sub-type Article (original research)
DOI 10.13031/2013.25320
Open Access Status File (Publisher version)
Volume 51
Issue 5
Start page 1633
End page 1643
Total pages 11
Place of publication St Joseph, MI, U.S.A.
Publisher American Society of Agricultural and Biological Engineers
Language eng
Formatted abstract
In semi-arid areas such as western Nebraska, interest in subsurface drip irrigation (SDI) for corn is increasing due to restricted irrigation allocations. However, crop response quantification to nitrogen (N) applications with SDI and the environmental benefits of multiple in-season (IS) SDI N applications instead of a single early-season (ES) surface application are lacking. The study was conducted in 2004, 2005, and 2006 at the University of Nebraska-Lincoln West Central Research and Extension Center in North Platte, Nebraska, comparing two N application methods (IS and ES) and three N rates (128, 186, and 278 kg N ha−1) using a randomized complete block design with four replications. No grain yield or biomass response was observed in 2004. In 2005 and 2006, corn grain yield and biomass production increased with increasing N rates, and the IS treatment increased grain yield, total N uptake, and gross return after N application costs (GRN) compared to the ES treatment. Chlorophyll meter readings taken at the R3 corn growth stage in 2006 showed that less N was supplied to the plant with ES compared to the IS treatment. At the end of the study, soil NO3-N masses in the 0.9 to 1.8 m depth were greater under the IS treatment compared to the ES treatment. Results suggested that greater losses of NO3-N below the root zone under the ES treatment may have had a negative effect on corn production. Under SDI systems, fertigating a recommended N rate at various corn growth stages can increase yields, GRN, and reduce NO3-N leaching in soils compared to concentrated early-season applications.
Keyword Application method
Application rate
Biomass
Corn
Grain yield
Nitrogen
SDI
Subsurface drip irrigation
Deficit Irrigation
Management
Kansas
Crops
Yield
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Publication date: September/October 2008

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Wed, 10 Aug 2011, 08:37:50 EST by System User on behalf of School of Agriculture and Food Sciences