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A comment on For tech-weary Midwest farmers, 40-year-old tractors now a hot commodity. Parent comment

Re:For tech-weary Midwest farmers, 40-year-old tractors now ... by halbritt on Thursday January 09, 2020 @01:38PM (#22004056)
You could grow salad in the cupboard. Lettuce is one of the few crops that would be economical to grow under indoor lighting. I believe that info comes from here:

https://www.youtube.com/watch?v=wsaufB5F8dk

If you think LEDs have gotten epic, check out his research. They're just getting to be more efficient than HPS.

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