Simulating of leaf wetness duration within a potato canopy
| Autor: | B.G. Heusinkveld, Adrie F. G. Jacobs, G.J.T. Kessel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Canopy
Meteorologie en Luchtkwaliteit plant protection toepassingsdatum gewasteelt dew simulation models relatieve vochtigheid crop management Plant Science Atmospheric sciences relative humidity meteorologische factoren meteorological models phytophthora infestans Leaf wetness application date phytophthora Energy budget PE&RC simulation simulatiemodellen field parameterization weather meteorologie Interception application rainfall interception estimating dew duration Meteorology and Air Quality gewasbescherming meteorological factors Development precipitation fungicides weer simulatie micrometeorology models pesticiden fungiciden Relative humidity potatoes Precipitation meteorology modellen toepassing Biointeracties and Plant Health aardappelen Humidity dauw pesticides neerslag Environmental science PRI Biointeractions en Plantgezondheid Animal Science and Zoology Dew micrometeorologie Agronomy and Crop Science Food Science |
| Zdroj: | NJAS Wageningen Journal of Life Sciences 53 (2005) 2 NJAS Wageningen Journal of Life Sciences, 53(2), 151-166 |
| ISSN: | 1573-5214 |
| DOI: | 10.1016/s1573-5214(05)80003-x |
| Popis: | A leaf wetness duration experiment was carried out in a potato field in the centre of the Netherlands during the growing season of 2003. A within-canopy dew simulation model was applied to simulate leaf wetness distribution in the canopy caused by dew and rainfall. The dew model is an extension of an earlier-developed energy budget model, distinguishing three layers within the potato canopy. To run the dew model successfully, information on the above-canopy wind speed, air temperature, humidity and net radiation as well as the within-canopy temperature and humidity must be available. In most cases leaf wetting starts in the top layer followed by the centre and the bottom layer, in that order. Leaf drying shortly after sunrise takes place in the same order. Leaf wetness lasted longest in the bottom layer. Rainfall was accounted for by applying an interception model. The results of the dew model agreed well with leaf wetness recorded with a resistance grid. |
| Databáze: | OpenAIRE |
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