Growing More Food & Fiber

Artificial satellites are helping farmers boost crop yields

 

The Economist reports that, "FOR farmers, working out the optimal amount of seed, fertiliser, pesticide and water to scatter on a field can make, or break, the subsequent harvest. Regular laboratory analyses of soil and plant samples from various parts of the field can help—but such expertise is costly, and often unavailable. A new and cheaper method of doing this analysis, though, is now on offer. Precise prescriptions for growing crops can be obtained quickly, and less expensively, by measuring electromagnetic radiation reflected from farmland. The data are collected by orbiting satellites."