Definitions for "Composite sample"
(4) a sample created by combining different fractions (subsamples). Subsamples can be collected at different times or from different locations.
Combined increment samples, or combined replicate samples, or combined samples from replicate trials. Preferred term to bulk sample which is ambiguous. (Horwitz, 1990). See also aggregate sample, primary sample.
a sample collected over time, formed either by continuous sampling or by mixing discrete samples
Keywords:  awns, trash, scalping, hulls, bearding
This involved removing awns or hulls, bearding up clusters, scalping off large trash and other operations, which improve the condition and flow ability of the seed.