Nihon Hiryo Co., Ltd.

Nihon Hiryo Co., Ltd. is a Japanese company based in Fujioka, Gunma Prefecture, engaged in the development, production and sale of fertilizers and soil-conditioning materials. According to its official website, the company has worked since its establishment in Showa 24 (1949) to popularize and sell natural humic (woody peat) fertilizers in solid form and humic soil conditioners. Its product line covers fertilizers for rice, vegetables, flowers, fruit trees and tea, marketed as environmentally friendly fertilizers used across Japan. In addition to humic products, the company researches, develops and distributes microbial materials using beneficial fungi and bacteria such as Trichoderma and Bacillus, positioned as tools for healthy soil preparation that underpins safe and secure crop production. The company operates a head office in Fujioka, Gunma, and maintains branch and factory locations in Japan. Its business spans product development, manufacturing and nationwide sales of agricultural inputs.

Nihon Hiryo Co., Ltd. was established in Showa 24 (1949), according to the company's official website. From its founding, the company focused on the use of natural humic substances derived from woody peat, developing and promoting solid fertilizers containing natural humic material and humic soil conditioners. Over the decades, these products were adopted across Japan for a wide range of crops, including rice, vegetables, flowers, fruit trees and tea, and were positioned as environmentally friendly fertilizers. The company later expanded its research and development into microbial materials, utilizing beneficial microorganisms such as Trichoderma and Bacillus to support healthy soil preparation, which it presents as the foundation of safe and secure crop production. The company is headquartered in Fujioka, Gunma Prefecture, and maintains branch offices and factories in Japan. Its official website, copyrighted in 2008, provides company information, business guidance, branch and factory details, product development and product introductions.

• 1949

  Company established (Showa 24), beginning efforts to popularize natural humic fertilizers and humic soil conditioners.

Environmentally friendly fertilizers and soil conditioners for healthy soil and safe, secure crop production.

• Natural humic (woody peat) solid fertilizers

  Solid fertilizers incorporating natural humic substances from woody peat, used across a range of crops.

• Humic soil conditioners

  Soil conditioners based on humic substances for healthy soil preparation.

• Microbial materials (Trichoderma, Bacillus)

  Microbial soil materials utilizing beneficial microorganisms such as Trichoderma and Bacillus.

1. 1Nihon Hiryo Co., Ltd. official websitenihonhiryo.co.jp
2. 2Wikidata: Nihon Hiryo Co., Ltd. (Japan)wikidata.org