Thank you Ugo for the article. I think you have a good start. Reminds me a little of an old article about a Willys Jeep converted to do farming functions.

Like John mentions above, and others mention below, it is very important to state the scale of farm you are seeking solutions for. The wheat or corn field that reaches to the horizon requires a whole different approach than the smaller more intensive farm.

Being a supplier of agricultural grade garden tools here in the states I do often hear from people looking for small-scale farming equipment, primarily for tilling and harvesting. So there is an unmet need here.

A couple of ideas that popped to mind:
* make your vehicle able to run both on battery and on remote power fed by an electric cable. Probably with just a simple mechanical switch so you can drive to remote power source and plug in.
** now picture center-pivot irrigation systems and imagine that round growing area with a power pole at the axis and with a retractable cable reel either on the pole or on the vehicle itself. Irrigated farmers have already mastered driving in big circles :)
*** consider a tall-tire vehicle (like the specialized spraying vehicles) that would allow movement over long raised beds and over taller crops.

Keep up the good work!