Grain fractional composition
The distribution of grain mass based on the size, shape, or density of individual kernels, expressed as a percentage of different categories.
Также говорят: grain size distribution, grain uniformity
Fractional composition is determined by sieving grain through a set of screens with various aperture sizes. Knowing this parameter is critical for primary cleaning, seed grading, and determining appropriate drying regimes.
Regular analysis helps assess the uniformity of a batch, which directly impacts crop emergence consistency and the efficiency of gravity tables and indent cylinders. A common error involves incorrect equipment settings, leading to the loss of valuable large fractions into waste or the contamination of commercial grain with fines.