Institute for Rural Engineering, NARO

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The Institute for Rural Engineering, NARO (NIRE) aims to promote agricultural innovations with the development of technology that contributes to the achievement of a policy of "rural promotion" through prudent management of agricultural water and soil. Our recent research focuses on the development of technology that contributes to strategic renewal and management of agricultural irrigation facilities, disaster prevention and reduction in rural areas, preservation of regional resources for agricultural production, advanced paddy field management, biomass utilization, measures against the effects of climate change on farmland and water resources, and sophisticated environmental control of agricultural structures as well as many other areas. Moreover, we provide technical assistance with hazard and disaster countermeasures for farmland and agricultural facilities.

NIRE News

Improved efficiency by recording the management of agricultural irrigation facilities on the map

Published on 13 September 2017

image1 The Institute of Rural Engineering, NARO has developed an "irrigation facility management ledger system" that can record and refer to the management know-how of agricultural water users' facilities such as division gate, open channel etc. on the map. By constructing a database using this system, records of management know-how and aging situation of facilities, as well as natural disasters such as guerrilla rainstorms etc. can be recorded and used for daily management and as reference in the future. The system can be easily operated by recording actual conditions of the site with photos and memos using mobile devices or by input of information in a ledger format, and can be used efficiently in a small scale land improvement district where it is difficult to transfer the know-how in management. Read more.


Utilization of ICT in rice field water management

Published on 23 Aug 2017

image The Institute for Rural Engineering, NARO has developed the first domestic system that allows remote control and automatic monitoring of water supply and drainage in rice paddy fields using smartphone or PC. Utilization of this ICT-based system in experimental rice fields showed about 80% reduction in working time related to water management and about 50% reduction in water consumption during rice cultivation from heading to harvesting. With this system, it is possible to achieve both saving labor in water management and efficient use of water resources. Read more.


Simple measurement of agricultural canal deterioration after repair

Published on 22 Aug 2017

imageThe Institute for Rural Engineering, NARO has developed a low-cost and easy method to measure the degradation of agricultural canals after repair work. The cost per measurement is less than about 30% of the conventional method and the required time is about 3 minutes. This method also allows for a wide range of investigations, it is possible to determine the actual condition of deterioration of agricultural canals after repair work and to conduct reasonable maintenance management which was difficult until now. Read more.


Utilization of tidal components to estimate the ease of groundwater passage

Published on 04 Aug 2017

image An simple method to estimate the permeability coefficient which indicates the ease of passage of groundwater in geological formation by utilizing the change of the groundwater level due to the strength of natural tides has been developed. In this method, it is possible to estimate the permeability coefficient of the stratum at the distance where the tidal fluctuation is transmitted based on a single pair of groundwater level data, and to survey a wide range of strata from a few observation points. With this method, available amount of groundwater resources in remote islands including water for agricultural use can be easily determined. Read more.


Diagnosing the safety of fiberglass reinforced plastic mortal pipe by measuring the strain

Published on 13 July 2017

image An efficient method for diagnosing the safety of fiberglass reinforced plastic mortar pipe(FRPM pipe), which is widely used for pipeline of agricultural water, has been developed by measuring the strain on the pipe.This method allows quantitative diagnosis of the safety against leakage of agricultural water pipelines due to extensive damage. In addition,it also facilitates identification of locally deformed sections of the pipe that have been missed out even before the occurrence of cracking and water leakage.Read more.


NIRE Research Achievements

Published on 20 Jan 2016

image The NARO Institute for Rural Engineering published "Research Topics 2014" providing an overview of NIRE research achievements and progress of ongoing research initiatives in January 2016. The publication includes a summary of 34 research projects focusing on management of agricultural irrigation facilities, disaster prevention and reduction in rural areas, preservation of regional resources for agricultural production, advanced paddy field management, biomass utilization, measures against the effects of climate change on farmland and water resources, sophisticated environmental control of agricultural structures and other areas of research on rural engineering. Read more.

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