Dr. Wichian Yongmanitchai
Researcher and Product Developer of Soil Digest
Soil Digest is an innovative microbial solution designed to accelerate the decomposition of rice stubble and straw, providing a practical solution to help reduce agricultural burning.
“Winner of the 1st Prize”
in the Industrial Category at the Rice Innovation Awards 2026, organized by the National Innovation Agency (Public Organization), or NIA.
6 Oct 2026
On Friday, September 11, 2026, in Bang Nam Priao District, Chachoengsao Province, Soil Digest microorganisms were tested for their effectiveness in decomposing rice stubble and straw on a 20-rai rice field owned by Mr. Paiboon Kaewsawang, a model farmer from Moo 7, Bueng Nam Rak Subdistrict.
22 Sept 2026
“Soil Digest Microorganisms Promote Area-Based Agricultural Innovation” at the Agricultural Production Efficiency Enhancement Learning Center (AIC), Bang Nam Priao District, Chachoengsao Province, on June 17.
19 Jun 2026
“On June 11, 2026, the Chachoengsao Provincial Agricultural Office organized the ‘Green Gain Day: No Burning, More Earnings 2026’ event to raise awareness and motivate farmers to reduce agricultural burning.”
16 Jun 2026
Soil Digest at Green Gain Day – No Burning, More Income 2026
Organized by the Bangkok Agricultural Extension Office on June 9, 2026
11 Jun 2026
On May 29, the SAS team began a pilot application of Soil Digest microorganisms in Sikhio District, Nakhon Ratchasima Province, to accelerate the decomposition of agricultural residues as an alternative to open burning (Crop Residues Management) and to restore soil health in line with the principles of Regenerative Agriculture.
8 Jun 2026
Soil Digest was honored to be part of the “Green Flag Affordable Price Plus Phase 1” Project held at Sawang Arom Agricultural Cooperative, Sawang Arom District, Uthai Thani Province.
2 Jun 2026
![Highlights from the training session on "Promoting Safe Rice Farming: Cargill’s Commitment 2026," part of the Cargill Cares Project.](https://image.makewebeasy.net/makeweb/r_100x100/599BmKqML/DefaultData/ปก01.png?v=202405291424 "Highlights from the training session on "Promoting Safe Rice Farming: Cargill’s Commitment 2026," part of the Cargill Cares Project.")
“On May 7–8, 2026, the rice straw decomposing microbial product ‘Soil Digest’ from Siam Agri Supply Co., Ltd. (SAS) was honored to participate in the training session titled ‘Promoting Safe Rice Farming: Cargill’s Commitment 2026’ under the Cargill Cares Project.”
15 May 2026
On June 5, 2025, Mr. Sumet Tantivejkul, Secretary-General, along with a team, visited a demonstration plot in Ayutthaya to monitor the use of Soil Digest.
19 Jun 2025
![SAS Promotes New Alternatives for Farmers in the "No Burn 99" Project at Nong Hya Sai, Suphanburi](https://image.makewebeasy.net/makeweb/r_100x100/599BmKqML/DefaultData/cover_Web_1.jpg?v=202405291424 "SAS Promotes New Alternatives for Farmers in the "No Burn 99" Project at Nong Hya Sai, Suphanburi")
Date: April 2, 2025
Location: Agricultural Production Efficiency Learning Center, Nong Hya Sai District, Suphanburi Province
4 Apr 2025
