RESULTS OF LABORATORY-FIELD RESEARCH OF WHITE LUPINE COMBING

Abstract

The paper considers some issues relating to the harvesting of white lupine. The authors have performed an analysis of technological properties of the crop under consideration and determined dimensional-mass characteristics of its seeds. It is proposed to harvest the standing crop using the combing (deseeding) method. Laboratory tests have been carried out in Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, while the field ones are exemplified by harvesting white lupine of the Dega variety on farms of the Michurinsk district of the Tambov region. The research has involved a comber-type header "OZON" produced by PAO (PJSC) "Penzmash". The header has been upgraded for white lupine harvesting. The design of combing fingers has been changed in accordance with the patents for utility models RF No. 172995 and No. 178721. The authors have carried out experimental studies of new working elements and determined technological parameters and operating modes of the comber-type header used for white lupine harvesting. The method of experiment planning has been used as well. The experimental results have been processed by the Statistic 13.0 program and two-dimensional cross-sections of the studied factors have been obtained. The analysis of the obtained data has shown that the optimal values of the studied factors include kinematic index - within 24...27; the header height measured from the soil surface to the combing fingers in the lower position 0.38...0.42 m; the height of the contact point between the fairing and the crop material 0.7...0.75 m.