national-agriculture-research-organizationA Hydro-Organic Microbial Ecosystem was first investigated at the national Agriculture and Food Research Organization located in Kusawa Japan. It was in 2008 that Makoto Shinohara, Hiromi Ohmori and Yoichi Uehara began a new line of investigation dealing with creating a microbial ecosystem. The microbial ecosystem mineralised organic nitrogen to nitrate-nitrogen via ammonification and nitrification. The culture solution containing the microbial ecosystem was usable as a hydroponic solution. Vegetable plants grew well in their organic hydroponics system under continuous addition of organic fertilizer and the yield and quality approximated those of vegetables grown by conventional hydroponics.

OTS has expounded on this research by adding an additional component. Permanent organic substrates containing both, Nitrosomonas bacteria that convert ammonia into nitrites and Nitrobacter bacteria that convert nitrites into nitrates.

The organic composts is the main active ingredient in the hydroponic substrate used in conjunction with the OST hydroponic system. This compost and the liquid fertilizer made via a bio-fermentation process were created by a colony of beneficial microbes, both nitrosomona and nitrobacter. So unlike the NARO study, the OST system has nitrifying agents inherent in the system. Other inoculations are not needed.

Below find a short summary of Makoto Shinohara’s work at the National Agriculture and Food Research facility, or download the full NARO report

One very interesting part of the NARO study is printed in full below. Two sets of tomato plants were established. One grown with hydroponics-organic and the other with traditional chemical hydroponic solution. See the results of the Pathogen study below.


After Phytopathogen inoculation. Chemical fert- upper. Organic fert- lower

Phytopathogen Inoculation (NARO study)

Susceptibility to bacterial wilt disease of tomato was examined by inoculation of the culture solution with Ralstonia solanacearum MAFF 301487. Upper: tomato plants cultivated with chemical fertilizer (top container) and with corn steep liquor (bottom container) as organic fertilizer. Lower: graph shows that more than half of the plants grown with chemical fertilizer died from bacterial wilt disease; there were no wilted tomato plants among those grown with corn steep liquor…