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Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1080/00103629809369941 Last checked: 10/15/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Report |
Author(s): | Overman, A. R.;
Stanley, R. L. |
Author Affiliation: | Overman: Agricultural and Biological Engineering Department, University of Florida, Gainesville, Florida; Stanley: North Florida Research and Education Center, University of Florida, Quincy, Florida |
Title: | Bahiagrass response to applied nitrogen and harvest interval |
Source: | Communications in Soil Science and Plant Analysis. Vol. 29, No. 1/2, January 1998, p. 237-244. |
Publishing Information: | New York, NY: Marcel Dekker |
# of Pages: | 8 |
Keywords: | TIC Keywords: Paspalum notatum; Nitrogen; Harvesting; Responses; Models; Yield response; Dry weight
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Abstract/Contents: | "A growth model has been developed for warm-season perennial grasses which relates seasonal distribution of dry matter to calendar time through the probability equation, and which relates total season dry matter to harvest interval through a linear-exponential equation. The model is used to describe response of 'Tifton-9' bahiagrass (Paspalum notatum Flögge) to time and harvest interval at Quincy, Fl. It is also shown that yield response to applied nitrogen (N) is described by the logistic equation, in agreement with earlier results for bahiagrass and otehr forage grasses. This model removes the restriction of harvest interval to 6 or 7 wk of the previous linear growth model. Maximum dry matter yield exceeded 20 Mg ha-1. Maximum incremental dry matter response to applied N occured at approximately 140 kg N ha-1. A harvest interval of 8 wk provided peak dry matter production. The mean and standard deviation of dry matter distribution were 28.5 wk and 6.0 wk, respectively. Correlation coefficients of the models with data exceeded 0.99. Effects of harvest interval and applied N are easily accounted for with this model, which uses analytical functions and avoids the need for finite difference techniques." |
Language: | English |
References: | 10 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Overman, A. R., and R. L. Stanley. 1998. Bahiagrass response to applied nitrogen and harvest interval. Commun. Soil. Sci. Plant Anal. 29(1/2):p. 237-244. |
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| Web URL(s): http://www.tandfonline.com/doi/pdf/10.1080/00103629809369941 Last checked: 10/15/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: S 590 .C54 |
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