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Details van artikel 5 van 17 gevonden artikelen
| Titel: |
Coupling of dry matter and nitrogen accumulation in millet and ryegrass |
| Auteur: |
Overman, A. R. Robinson, D. L. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 28 (1997) nr. 3-5 pagina's 217-224 |
| Jaar: |
1997-02 |
| Inhoud: |
The logistic model has proven very useful in relating dry matter production of warm-season and cool-season forage grasses to applied nitrogen (N). A recent extension of the model coupled dry matter and plant N accumulation through a common response coefficient c. The objective of this analysis was to apply the extended model to both warm season pearl millet [Pennisetum typhoides (Burm.) Staph and C. E. Hubb.] and cool season ryegrass [Lolium multiflorum Lam.], and to establish a common response coefficient, c, between accumulation of dry matter and plant N for the two grasses in rotation. Analysis of variance established the validity of this hypothesis. The model accurately described response of dry matter, plant N removal, and plant N concentration to applied N, with an overall correlation coefficient of 0.9954. Furthermore, the model closely described the relationship between yield and plant N removal. The logistic equation is well behaved and simple to use on a pocket calculator. It can be used to estimate yield and plant N removal in evaluation of agricultural practices and the influences on environmental quality. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 17 gevonden artikelen
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