Climate Change



Last modified:
05-10-2008

 
     Chrysántemum segétum  - UV weed control.
Weed Control.jpg (105186 bytes)

UV-Light from 0 to 9 seconds by a small UV-lamp on each pot.1/4 Watt pr.sq.cm.
( 0 seconds for the one in the upper left corner )

UV-energy from 0 to 22 500 Joule / sq.m.   Project by. Julie Ogstrup-Pedersen.

Photo by Kaj Jensen one week after exposure to UV-Light.

Højbakkegaard January 1997 - The Royal Veterinary and Agricultural University.

 

  [ Weed Photo-2  -   Viola arvénsis ]

                | Home | Contents |Optocleaner | Electronic Ballast  | UV Weed Control  | Patents | Search |