ABSTRACT
Variable-rate seeding (VRS) has drawn interest with the early precision agriculture pioneers of the mid-1990s. The premise of VRS was that subfield variability in soil, terrain and other attributes exists in many arable farming areas of the world. Therefore, yield potential, crop emergence and crop development can vary across the field in these areas, so VRS can serve as a way to better place seed in a site-specific manner to maximize yield and profit. VRS has been implemented by some farmers as a practice to better manage farm risks through focusing or investing in areas of higher return potential and not investing as much in areas of low profitability.
