@misc{oai:niigata-u.repo.nii.ac.jp:00032043, author = {Sandakov, Tsyden}, month = {Sep}, note = {Nowadays there is a gap between the equipment available in the Russian market and agricultural stakeholders’ need for the equipment embracing modern technologies for grain cultivation. Therefore, the purpose of this study is to develop a resource-saving Deep Placement Fertilizer Applicator (DPFA) prototype for grain production in Russia. To achieve the goal of the research, this study first determined the impact of different tillage systems on the grain yield and costs in the Republic of Buryatia, Russia. The minimum tillage and no-tillage systems present expedient alternatives to the conventional system of soil tillage, due to crop yield increase, cost reduction and to their conservation effects on the soil as compared to the conventional system. The minimum tillage method presupposes the use of subsoil and deep soil tillage devices, such as the chisel plow. Therefore, an advanced, resource-saving chisel plow for grain production in the Republic of Buryatia was developed. The proposed model reduced resistance of soil to the working parts and increased operational reliability of the device. Data of the equivalent stress, equivalent elastic strain, total deformation, and mass were obtained using the FEM to determine the optimum design of the chisel plow; these values for the optimized construction have decreased by 4.6, 2.1, 5, and 8% compared with the original design, respectively. Optimization of the chisel plow design was achieved by decreasing its mass and increasing its service life. Finally, a resource-saving DPFA prototype with optimum design of chisel plow for grain production was developed. The characteristics of new DPFA prototype are Deep Placement fertilization, which is one of environmentally friendly farming method, and saving on labor costs because it simultaneously performs tillage, fertilization, and seeding. Furthermore, top dressing application is not required because the effect of fertilizers is kept over a more extended period by the Deep Placement fertilization. For the DFPA prototype fabrication, the idea, the 2D and 3D engineering drawings of the DPFA were submitted to the Project of development of high-speed seeder with DPFA for the large-scale Russian farming (Project). The Project has been realized between Niigata University and Primorskaya State Academy of Agriculture from November 1, 2017. The fabrication of the proposed chisel plow was made during the first stage of the Project., 学位の種類: 博士(農学). 報告番号: 甲第4517号. 学位記番号: 新大院博(農)甲第187号. 学位授与年月日: 平成30年9月20日, 新大院博(農)甲第187号}, title = {Development of Deep Placement Fertilizer Applicator for Grain Production in Russian Federation}, year = {2018} }