Abstract
The aim of the work is to study the possibility of improving the sowing qualities of mustard seed material by its purification and sorting on a vibrofriction separator with non-perforated friction working surfaces. According to DSTU 2240-93 in the mustard seed of original and elite mustard seeds must be at least 99% by weight of the source material, and the content of seeds of other crops and weed seeds should not exceed 40 pieces/kg. In musty seed material 1–3 reproductions mustard seeds must be at least 98 %, seeds of other cultivated plants are allowed not more than 320 pieces/kg, and weed seeds – not more than 400 pieces/kg. Germination of conditioned original seeds should be at least 90%, and elite and 1-3 reproductions – not less than 85 % (DSTU 2240-93). The article presents the results of separation of mustard seed material on a vibrofriction separator after its preliminary purification. For one pass of the seed heap through the vibroseparator received 16.9 ± 0.2 % by weight of the source material, seed material (first fraction), which meets the requirements of the state standard for the original seed and 56.9 ± 0.2 % of the material (second and third fraction), which meets the requirements for conditioned seeds 1–3 reproductions.
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