AAP:

“Of 280,000 farms in Germany, between 800 and 1,000 use optical sensors,” he says.

However, precision agriculture may have bumper times ahead.
“It offers enormous productivity gains and allows for a reduction of resource use at a time of growing environmental regulatory demands,” said Oliver Neumann, spokesman for agricultural equipment giant John Deere.

A problem is that the equipment still doesn’t come cheap. Some high-tech combine harvesters can cost up to half a million euros.