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Details van artikel 9 van 12 gevonden artikelen
| Titel: |
Modeling Plant Competition in Monocultures of Barley and Oilseed Rape |
| Auteur: |
Fredshavn, Jesper R. |
| Verschenen in: |
Acta agriculturae Scandinavica. Section B, Soil and plant science |
| Paginering: | Jaargang 43 (1993) nr. 1 pagina's 38-44 |
| Jaar: |
1993-03-01 |
| Inhoud: |
The inverse linear competition model and three non-linear hyperbolic models were tested on two years' results from field experiments with barley and oilseed rape. Densities ranged from 1/9 to 3 times the normal seed rate (i.e. 350 barley plants m-2 and 100 oilseed rape plants m-2). A log transformation of both sides was necessary to ensure homogeneity of variance. The best precision of parameter estimates was found using the non-linear hyperbolic model: where w is the individual plant weight and N is the plant density. AN0 is the dry matter production per plant at a density N0, and B is the potential biomass production per unit area under the actual growth conditions. The estimated values of parameters AAN0 and B agreed well with the values actually measured. The computational, as well as the biological, implications of introducing a threshold density, N0 are discussed. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 12 gevonden artikelen
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