Development of Agricultural Machinery with Deep Placement Fertilizer Technology to Enhance Crop Production in the Far East of Russia ロシア極東における農作物の生産性向上を目的とした深層施肥技術を実装する農業機械の開発

Nowadays, the agricultural sector has become flexible and changeable in order to supply sufficient and pure food for the population. Therefore, scientists with the cooperation of farmers in many developing countries are looking for new technologies to increase crop yields and incomes, reduce the amount of fertilizer used, reducing labor, and also decreasing environmental damage to the atmosphere and water. These issues play a crucial role in the sustainable development of advanced agriculture. This Ph.D. research, at first, overviewed the economic sector focused on agricultural production and the current agricultural machinery market in Primorsky Krai (PK), Far East of Russia. The research also briefly analyzed PK research and development activities for agricultural machinery. It was found that many enterprises currently prefer to focus on reliability and low cost agricultural machinery to achieve better production, which plays a key role in PK agricultural development. Secondly, the Ph.D. study has investigated the practicability of a developed conventional Russian manufactured seeder for soybean sowing by using a deep placement fertilizer technology (DPFT), toward enhancing potential crop production in PK. Moreover, the development of deep placement fertilizer applicators (DPFA) has been considered in this study as one of the most important issues in developing combined subsoil tools for saving labor in using new agricultural machinery and Agro-technology. Thus, this study is focused on a methodological system with multiple laboratories and practical field experiments. Advanced equipment and methods such as finite element method (FEM) simulation with the use of additional strain gage pieces of equipment have been used for the practical approach. The study result indicates the practical use of the developed seeder and DPFA, findings on soil dynamic resistance induced on the DPFA, the results of soybean growth and development by the DPFT, and provides further research recommendations. Moreover, the current study results provide fundamental and practical support for the development of agricultural machinery, specific and conventional tools, especially for DPFA, which will be useful for further research on the development of the DPFT in the Far East of Russia.

新大院博(農)甲第211号