In regard with agriculture space settlements will have to deal with two issues. First of all, an independent food supply is essential for the success of any civilization. Secondly, during the early stages of the humanization of space there a shortage of labor will be quite likely. Since we cannot dispense with agriculture, at least not in the long run – as the alternative would be very expensive – space settlers will need to embrace agricultural robots full heartedly.
Agricultural robots will reduce the number of people required to work in food production and hence will allow us to allocate scarce laborers to other important jobs. Fortunately, a lot of research in this field has already been done here on Earth. Below two short videos, to illustrate the use and potential of this type of robots.