Original content
At BioVerbeek in Velden, the bell pepper plants need to start producing more fruit. In week 26, it was 38 to 39 degrees Celsius outside. "In the greenhouse with the red block bell pepper, it was slightly cooler due to crop evaporation," says Don Heijligers, co-owner of BioVerbeek. "Because of the hot weather, it was dry and sparse outside, which is why we opened the air vents completely. In hindsight, we should have closed the ...