A new project aims to improve the efficiency of crop fertilization by using soil sensors to measure the nutrient levels in the soil. The project, funded by the Agriculture and Food Research Initiative of the U.S. Department of Agriculture, will use the data collected from the soil sensors to inform farmers when and where to apply fertilizer. This could save farmers money and resources while also reducing the amount of fertilizer runoff into streams and rivers. The project will also research how cover crops can be used to reduce fertilizer needs and improve soil health.

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source: Phys.org