Articles
AN ORIGINAL APPROACH TO STUDY THE KINETICS OF MINERAL ELEMENT UPTAKE FOR SOME WOODY SPECIES
Article number
435_24
Pages
243 – 254
Language
Abstract
Mineral uptake by woody plants assumes that changes in a nutrient solution are due to the physiological activity of roots.
Analysis of these changes forms the basis of this work. Weigela japonica (Caprifoliaceae) plants were grown in an inert substrate with recirculating nutrient solution containing the elements N-NO3, N-NH4, P, K, Ca, Mg and Na.
The experiments were repeated for two years in succession.
Modelling of the recirculating nutrient solution data allowed uptake curves to be produced covering a period of several months.
This method enabled results to be obtained during the unavoidable operations of maintenance and nutrient solution renewal.
The validity of the integration data model was assessed at the end of the cultivation period by comparison with the measured plant mineral content.
Analysis of these changes forms the basis of this work. Weigela japonica (Caprifoliaceae) plants were grown in an inert substrate with recirculating nutrient solution containing the elements N-NO3, N-NH4, P, K, Ca, Mg and Na.
The experiments were repeated for two years in succession.
Modelling of the recirculating nutrient solution data allowed uptake curves to be produced covering a period of several months.
This method enabled results to be obtained during the unavoidable operations of maintenance and nutrient solution renewal.
The validity of the integration data model was assessed at the end of the cultivation period by comparison with the measured plant mineral content.
Authors
F. Beaujard, G. Hunault
Keywords
woody plants, soilless culture, ionic uptake, Weigela, morphogenesis, modeling, recirculating nutrient solution
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