Impact of the operating parameters of a drum cutting unit on unevenness of chaff’s length

The impact of constructional and exploitation parameters on the degree of unevenness has been presented in this article.The studies were conducted on a stand equipped with a drum cutting unit allowing for both the performance of lateral and oblique cutting. The plant material designed for the studies was rye and oats straw. Based on the analysis of the results of the studies it was found, that the degree of unevenness of oat straw for just the same constructional and exploitational parameters of the drum cutting unit was on average 5% higher than the degree of unevenness of rye straw’s chaff.