The Trimble® GreenSeeker® crop sensing system helps you effectively and precisely manage crop inputs on-the-go. With GreenSeeker, you can address field variability by applying the right amount of fertilizer, in the right place, at the right timeThe GreenSeeker system uses optical sensors to measure and quantify the variability of the crop. It then creates a targeted prescription to treat the crop variability. Use GreenSeeker to apply your UAN, UREA, and NH3 to help increase crop yields and ultimately increase your profitability.