Environ. Horticulture, Pears, Cherries, and Viticulture
University of California
Environ. Horticulture, Pears, Cherries, and Viticulture

Measuring Bed Temperatures Under Clear and Opaque Plastics

As most people in the berry industry, I believe quite strongly that there is a lot of variation in strawberry bed temperatures.  Sides that face the sun longer tend to be warmer and those that don't are cooler.  This consequently has an effect on plant growth, and what's more there is good reason to believe that this can also have a bearing on disease severity in an infested field.

Problem is that this hasn't really been thoroughly tested.  Thanks to a local grower and a research company loaning me their equipment, I have an opportunity to thoroughly test the above.  We have green plastic compared to transparent, and then I am placing Hobo dataloggers at 2" and 6" deep 5" away from the bed shoulders. The loggers will stay put for the duration of the season.

Check back in December!

Getting ready to bury the datalogger 6 inches deep.  Ruler is to make certain the depth is correct.
Getting ready to bury the datalogger 6 inches deep. Ruler is to make certain the depth is correct.

Data logger placed in the hole.  Soil is filled back in and tamped down.
Data logger placed in the hole. Soil is filled back in and tamped down.

Plastic is sealed back up; using clear Gorilla tape to interfere as little as possible with the plastic.
Plastic is sealed back up; using clear Gorilla tape to interfere as little as possible with the plastic.

Posted on Thursday, December 27, 2018 at 1:34 PM

Comments:

1.
When I worked for the Department of Agriculture here in Western Australia we did this for a season using a grid of probes at different positions across a bed. Can send you our results if you like. We also did soil moisture.

Posted by Aileen Reid (Strawberry Industry Devt) on December 29, 2018 at 1:08 AM

2.
For sure Aileen, I'd love to see those results. One it's very interesting, and two they might help in guiding our work over here. Thanks!  
 
You can find my email (can't post them here) on the UC ANR homepage.  
 
Mark

Posted by Mark Bolda on December 30, 2018 at 9:08 AM

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