Here is an excellent yield analyzing program...
It allows for quite a few variables including the most accurate way to gauge yield from a perpetually rotating harvest.
http://www.angelfire.com/cantina/fourtwenty/yor/trackadvexp.htm
Everyone involved in this controversy should use it and post up their results.
BTW maj.pothead is dead wrong about reflectivity...
Percentage of reflection for gloss white paint and white plastic is 70 to 80%, for flat white paint it is 85 to 90% and for Mylar it is 90 to 95%...
Flat white paint reflects more light than white plastic.
And... Even though mylar reflects roughly only 5% more radiation than Flat white... It Also reflects 90% more infra-red (heat), a known garden growth inhibitor.
It allows for quite a few variables including the most accurate way to gauge yield from a perpetually rotating harvest.
http://www.angelfire.com/cantina/fourtwenty/yor/trackadvexp.htm
Everyone involved in this controversy should use it and post up their results.
BTW maj.pothead is dead wrong about reflectivity...
Percentage of reflection for gloss white paint and white plastic is 70 to 80%, for flat white paint it is 85 to 90% and for Mylar it is 90 to 95%...
Flat white paint reflects more light than white plastic.
And... Even though mylar reflects roughly only 5% more radiation than Flat white... It Also reflects 90% more infra-red (heat), a known garden growth inhibitor.