Abstract
The system for delivering tracing caplets into grain on a combine was developed as a part of a grain traceabilitysystem. A commercially available seed dispenser was utilized to meter tracing caplets into wheat in the combine bin tankduring the unloading process. The caplets were delivered into the grain stream close to the unloading auger to attain uniformdistribution. The distribution uniformity of caplets was sampled on five consecutive bin loads, with six 1-L grain samples fromeach load. The number of caplets in the samples was reasonably consistent at unloading time of 20 and 30 s when the grainunloading rate was stable. However, caplet concentration increased as grain flow was reduced at the beginning and end ofeach unloading event and caplets that remained in the grain tank sump after each test was discharged in high concentrationsat the beginning of the subsequent unloading process.
Published Version
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