Full TGIF Record # 128486
Item 1 of 1
DOI:10.1080/00103620701378466
Web URL(s):http://www.informaworld.com/smpp/section?content=a779367095&fulltext=713240928
    Last checked: 09/28/2007
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Mosali, J.; Girma, Kefyalew; Teal, R. K.; Freeman, K. W.; Raun, W. R.
Author Affiliation:Mosali: Samuel Roberts Noble Foundation, Ardmore, Oklahoma; Girma, Teal, Freeman and Raun: Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, Oklahoma
Title:Use of in-season reflectance for predicting yield potential in bermudagrass
Source:Communications in Soil Science and Plant Analysis. Vol. 38, No. 11/12, 2007, p. 1519-1531.
# of Pages:13
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Reflectance; Clipping weight; Growing degree days; Nitrogen fertilization; Nitrogen efficiency; Cynodon dactylon
Abstract/Contents:"Spatial variability of soil nutrients is known to exist at distances of less than 1 m. Recently, an on-the-go system for application of nitrogen (N) fertilizer based on spectral measurements known as in-season estimated yield (INSEY) improved N use efficiency (NUE) by as much as 17% in winter wheat. Six trials were conducted in 2001, 2002, and 2003 at Ardmore and Burneyville, OK, with an objective to develop an index similar to INSEY for use in predicting yield potential in bermudagrass (Cynodon dactylon L.) that can be used for adjusting fertilizer N rates. Initial results indicate that 55% of variation in predicted bermudagrass forage yield was explained by a Bermudagrass-INSEY (B-INSEY) index and 54% of the variation in forage N uptake was explained using the normalized difference vegetative index (NDVI). The remaining challenge is to develop appropriate N fertilizer rates based on this information and apply these rates using on-the-go technology."
Language:English
References:25
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mosali, J., K. Girma, R. K. Teal, K. W. Freeman, and W. R. Raun. 2007. Use of in-season reflectance for predicting yield potential in bermudagrass. Commun. Soil. Sci. Plant Anal. 38(11/12):p. 1519-1531.
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DOI: 10.1080/00103620701378466
Web URL(s):
http://www.informaworld.com/smpp/section?content=a779367095&fulltext=713240928
    Last checked: 09/28/2007
    Access conditions: Item is within a limited-access website
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MSU catalog number: S 590 .C54
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