Chart of the week: photosynthetically active radiation (PAR)

The climate appraisal documents are updated on all PACE Turf weather pages. A new document, Full sun PPFD & DLI, is now available for download at the top of your weather page.

I posted an example for one of my accounts that I have set for a Portland, Oregon location. That chart shows the photosynthetically active radiation (PAR) for the 15th day of each month at Portland. I choose the 15th because that is a typical day for the month.…