These are natural green volcanic ash stone grains extracted from the Oirase stone quarry.
Tohoku Stone (Hinai Green®) is a natural stone soil amendment material that adjusts comprehensive soil fertility (chemical, biological, and physical properties). <Organic JAS Standard Compliant Material> 【Features】 ■ Weakly alkaline ■ Porous structure with silica as the framework ■ Establishment of beneficial microorganisms ■ Minerals that easily ionize in response to water *For more details, please visit our website or feel free to contact us.
Inquire About This Product
basic information
Towada Stone (Hinai Green®) was formed 10 million years ago when a volcano erupted on the ocean floor, and the volcanic ash accumulated and solidified on the seabed. It belongs to the category of green tuff, but its characteristics are very unique. Towada Stone (Hinai Green®) exhibits weak alkalinity in aqueous solution, reacts with water to release ionized minerals (enhancing chemical properties), allows beneficial microorganisms to settle in its porous structure (enhancing biological properties), excels in water retention, and forms a granular structure (enhancing physical properties). *For more details, please visit our website or feel free to contact us.*
Price range
Delivery Time
Applications/Examples of results
【Usage】 ■ Vegetables ■ Leafy vegetables ■ Rice ■ Corn ■ Strawberries, etc. * For more details, please visit our website or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Hinai Green® and its related products support the healthy growth of crops. By leveraging the balanced performance of natural materials (chemical, biological, and physical properties), we contribute to the agricultural market's goals of food safety, security, and stability.
![[Case Study] Achieving Longevity and Cost Reduction of Water Treatment Facilities with Powerful Repairs!!](https://image.mono.ipros.com/public/default/object/noimage_l.gif?w=280&h=280)
![[Procedure Explanation] Repair Method for Steam Piping Using Heat-Resistant Repair Putty](https://image.mono.ipros.com/public/product/image/2003700/IPROS6268860261181015509.jpg?w=280&h=280)