So being 30 today and feeling like I've achieved nothing...figured I'd try and make a robot that can do everything to grow vegetables autonomously...
Ultimately I want to be able to make a robot for less than 1000$ that will be able to:

1. Prepare land for growing food
2. Sow seeds for growing particular crops
3. Organically raise those crops by mechanically removing weeds etc, 
4. Monitor the condition of the crops and land
5. Harvest the crops sown

The first step of the project is to develop a low cost robot capable of autonomous movement....check back for updates