In order to provide safety food, soil improve agent also has to be safe. Porous Alpha is compliant “Environmental regulations on contamination of soils” which was established by Ministry of the Environment of Japan.
The utilization of Porous Alpha doesn’t have any problem related to heavy metal and toxic product to use it as the soil including mixing with soil.
Result of leaching test based on “Environmental regulation on soil contamination“, (23 Aug. 1991, Ministry of the Environment)
Analyzed by Tottori health association, Jan. 2008)
Result of leaching test in the frame of environmental regulation in Japan,2008


Analysed heavy metal and physico-chemical on the fruit of Tomato and Green beans which is cultivated by the soil including Porous Alpha.
The result show it doesn’t has any problem for adjusting CODEX regulations and EU regulation in both condition between with Porous Alpha and without Porous Alpha.
Please check their detail from following tables.
Target crop: Tomato
Cultivation period: Sep,2016 to Feb,2017
Farm:Experimentation site in ORMVASM
Analysis organization: Labomag
Analysis method: Sampled 9 fruits in each condition between with Porous Alpha and without Porous Alpha.
In each conditions, its were cultivated (1)normal irrigation volume (2) 30% saved irrigation volume (3) 50% saved irrigation volume. Fertilizer used same amount for every conditions.
Number designated in tables are result of average on 9 samples between 2 conditions.




Analysed heavy metal and physico-chemical on the fruit of Tomato and Green beans which is cultivated by the soil including Porous Alpha.
The result show it doesn’t has any problem for adjusting CODEX regulations and EU regulation in both condition between with Porous Alpha and without Porous Alpha.
Please check their detail from following tables.
Target crop: Green beans
Cultivation period: Sep,2016 to Dec,2016
Farm:Experimentation site in ORMVASM
Analysis organization: Labomag
Analysis method: Sampled 9 fruits in each condition between with Porous Alpha and without Porous Alpha.
In each conditions, its were cultivated (1)normal irrigation volume (2) 30% saved irrigation volume (3) 50% saved irrigation volume. Fertilizer used same amount for every conditions.
Number designated in tables are result of average on 9 samples between 2 conditions.




Analysed physicochemical and heavy metal on the soil after cultivation with Porous Alpha.
Please check their detail from following tables.
Target crop: Tomato
Period: May to June,2016. (1 year passed after installation Porous Alpha)
Farm:Experimentation site in ORMVASM
Analysis organization: AGQ
Analysis method: Sampled 9 soil in each condition between with Porous Alpha and without Porous Alpha. In each conditions, its were cultivated (1)normal irrigation volume (2) 30% saved irrigation volume (3) 50% saved irrigation volume. Fertilizer used same amount for every conditions.
Number designated in tables are result of average on 9 samples between 2 conditions.
