UDC 631.531.027.3
DOI 10.36461/NP.2024.72.4.005

LABORATORY STUDIES OF SCARIFIER-INOCULATOR DEVICE DURING INOCULATION OF SEEDS OF PERENNIAL LEGUMES
S.A. Kshnikatkin, Doctor of Agricultural Sciences, Professor; A.S. Sitnikov, postgraduate student;
P.G. Alenin, Doctor of Agricultural Sciences, Professor;
I.A. Voronova, Candidate of Agricultural Sciences, Associate Professor; I.A. Konnov, Master;
N.E. Tretyakov, Master; E.M. Somov, student, D.A. Sumenkova, student
Penza State Agrarian University, Penza, Russia, tel. (8412) 628-359, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article presents an environmentally safe technology of pre-sowing treatment of seeds of perennial leguminous grasses with a hard shell impervious to water and air, with simultaneous scarification of seeds and inoculation with biological preparations. The results of laboratory studies of the scarifier-inoculator device in terms of seed treatment with biological preparations are presented, where high-pressure injectors are used for inoculation in the working chamber of the scarifier-inoculator device. The technological scheme of the SI-0.7 scarifier-inoculator device is based on the following technical solutions: the scarifier-inoculator device contains a housing, a loading hopper, in the center of which there is a vertical cylinder, a rotating working body, while the vertical cylinder is divided into two parts - upper and lower, and an inoculator with nozzles is installed in the lower part of the housing, while there is a ring on the surface of the rotating working body, and in the rotating working body there are holes, the area of which is equal to 50...60% of the area of the inner surface of the ring, in addition, blades are fixed under the ring in the lower part of the rotating working body, the ratio of the outer diameter D_1 to the inner diameter of the lower part of the through vertical cylinder D_2 (D_1/D_2 ) is 0.85...0.9, this ensures a gap between the blades and the bottom of the vertical cylinder.
Studies of an experimental scarifier-inoculator device with disk-type working organs were carried out using a multifactorial experiment planning technique. The article presents a second-order full-factor model and graphical dependencies of two-dimensional cross-sections of the model of the influence of factors on the increase in seed moisture during inoculation, depending on the design and operating parameters of the experimental scarifier-inoculator device (pressure of the working fluid in the nozzles, the number of high-pressure injectors). Laboratory studies have shown that to increase moisture content of seeds by no more than 1% after treatment, two high-pressure nozzles with an outlet diameter of 0.15 mm at a working fluid pressure of 70 Bar are necessary and sufficient.
Keywords: legumes, perennial, Eastern galega, seeds, hard shell, scarifier-inoculator device, scarification, inoculation, disk, rotating working body, nozzles, high pressure, increase, humidity.

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