Very interesting
@Montero. I am a Civil Engineer by trade and my company does bore hole drilling, so i can certainly appreciate that drilling and planting seeds might have less impact with respect to ground disturbance than tilling.
I have to say I would be going one step further in the 21st century; my idea is for every city in the world to have vertical farms.
Basically, these would be skyscraper-style buildings (you could renovate existing skyscrapers, perhaps) with multiple levels and farming on each lever. These would be irrigated, have controlled sunlight, and would be able to capture all CO2 emissions. They wouldn't be susceptible to varying climates, droughts, floods, etc., and you could produce local crops for local markets, avoiding huge freight burdens with respect to cost AND fuel.
I see these as the way of the future; your local cafe will get their bread, chicken, micro-herbs, cheese, etc. from the vertical farm just down the road. Stocks could be hand-delivered daily via pedal cycle, and these farms would create huge employment opportunities for attendants, working the floors, checking light / water levels, servicing the pipework, delivering the produce, etc.
The downside is that I believe these would only work in zero-growth economies, and until such time as the concept of zero growth no longer brings a cold sweat to western leaders, it will remain a pipe dream.