Crop yields have been on a century long increase (we produce about 5x more corn per acre than 100 years ago) in part due to CO2 fertilization, in part due to improvements in technology:
https://www.nasa.gov/feature/goddard/2016/carbon-dioxide-fer...
https://www.agry.purdue.edu/ext/corn/news/timeless/images/US...
https://www.nass.usda.gov/Charts_and_Maps/Field_Crops/soyyld...
You'll notice from the charts year to year variability happens (droughts, heat waves, freezes, etc) but the long term trend is up and to the right.