WORKING SPEED AND QUALITATIVE INDICES OF SOWING WORK
The sowing speed is a determining factor for the observance of the qualitative indices of the work in terms of the distance between nests in a row and the sowing depth. This aspect is sometimes ignored compared to other links in cultivation technologies due to external factors such as: weather conditions, long distances between the soils to be sown, lack of seed supply, etc. Most seeders, which have higher working rates, contain in the instructions for use data on the recommended working speeds for uniform sowing, and information on the maximum working speeds at sowing, which are often taken by the mechanic as a standard but sometimes users do not respect and exceed them, ignoring the real conditions in the field, respectively the quality of the germination bed, which influences the displacement of the aggregate with a negative effect on the sowing accuracy (distance between nests) or depth at sowing. Basically, the speeds that exceed the recommendations for a uniform sowing lead to nonuniformities horizontally and vertically . Horizontally on the distance between the nests, vertically on the working depth. Each of the two parameters in turn with a negative effect on the number of plants per surface unit.
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