We don't want to mess up with the environment but at the same time we can increase yield, increase the production by precision agriculture. NASA and other research institutions can help. We can derive information from the satellites, from drones and from other platforms so that we can precisely manage the land so that we can produce more with the same amount of input water, land and labor. I don't think robots can replace, but they can supplement a human involved in the decision making and in the management. Robots and machines can be used and deployed to increase the labor-intensive efforts.