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DOI: | 10.1081/CSS-120024781 |
Web URL(s): | http://www.informaworld.com/smpp/ftinterface~content=a713624168~fulltext=713240930 Last checked: 07/19/2006 Requires: PDF Reader http://www.informaworld.com/smpp/ftinterface~content=a713624168~fulltext=713240928 Last checked: 07/19/2006 |
Publication Type:
| Report |
Author(s): | Overman, A. R.;
Scholtz, R. V. III |
Author Affiliation: | Agricultural and Biological Engineering Department, University of Florida, Gainesville, Florida |
Title: | Model analysis of crabgrass response to applied nitrogen |
Source: | Communications in Soil Science and Plant Analysis. Vol. 34, No. 17/18, October 2003, p. 2495-2501. |
Publishing Information: | New York, NY: Marcel Dekker |
# of Pages: | 7 |
Related Web URL: | http://www.tandfonline.com/doi/abs/10.1081/CSS-120024781#.VCsW5_ldXh4 Last checked: 09/30/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Digitaria sanguinalis; Models; Nitrogen; Application rates; Growth; Nitrogen uptake
|
Abstract/Contents: | "The extended logistic model of crop response to applied nutrients provides quantitative coupling of seasonal dry matter (Y), plant N uptake (Nu), and plant N concentration (Nc) with applied nutrient (N). It predicts a hyperbolic relationship between Y and Nc with Nu. Analysis of data from numerous studies has confirmed the model. In this article the model was applied to data for crabgrass (Digitaria sanguinalis) grown at Ardmore, OK. Results showed that single applications of nitrogen provided greater yields and plant N uptake over split applications. The difference was accounted for in the linear parameters for yield (A) and for plant N uptake (An). Applied N required to achieve 50% of maximum yield was 57 kg ha-1 and for 50% of maximum plant N uptake was 110 kg ha-1." |
Language: | English |
References: | 6 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Overman, A. R., and R. V. III Scholtz. 2003. Model analysis of crabgrass response to applied nitrogen. Commun. Soil. Sci. Plant Anal. 34(17/18):p. 2495-2501. |
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| DOI: 10.1081/CSS-120024781 |
| Web URL(s): http://www.informaworld.com/smpp/ftinterface~content=a713624168~fulltext=713240930 Last checked: 07/19/2006 Requires: PDF Reader http://www.informaworld.com/smpp/ftinterface~content=a713624168~fulltext=713240928 Last checked: 07/19/2006 |
| MSU catalog number: S 590 .C54 |
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