Abstract

The physical properties of grains are essential for harvesting, storage, and commercialization. These properties, such as bulk density and moisture content, are usually measured with self-propelled machines, expensive equipment, or in laboratories, making them inaccessible to small producers. The research developed a low-cost and easy-to-use device that measures these properties. Tested and calibrated with corn and beans using the standard oven method 105°C/24h, it achieved an excellent coefficient of determination (r2) of 0.998 for beans and 0.999 for corn. The bulk density was calibrated using a precision scale and a hectoliter weight kit, resulting in r2 values of 0.928 for beans and 0.926 for corn. The device is a viable option for Precision Agriculture for small producers.

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