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ប្រភេទកសិវិទ្យា: សុខភាពដី​ ពាក្យគន្លឹះកសិអេកូឡូស៊ី: ការកាត់បន្ថយធាតុចូល

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  • Biochar production training

    This video captures a hands-on Biochar Production Training held in Chiangdao, Chiang Mai, Thailand. Local farmers and community members learned how to produce biochar and wood...