Previous studies on productive value of biodiversity underlined the fact that crop diversity increases crop yields. Here, we focus on the management of crop diversity for wheat, winter barley and rapeseed productions, what we call biodiversity productive capacity. We introduce biodiversity productive capacity into a structural dynamic model with supply, variable input demand and acreage functions. We estimate the model on a sample of French farms from 2007 to 2012. We highlight that biodiversity indicators influence the yield of crops and variable input uses. We find evidences that farmers manage their acreage in order to benefit for biodiversity productive capacity.