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ប្រភេទកសិវិទ្យា: សុខភាពដី​ ប្រទេស: មីយ៉ាន់ម៉ា

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  • Making rhizobium bio-fertilizer at home

    This video guides how to produce Rhizobium bio-fertilizer at home using legume root nodules,. Rhizobium bacteria are essential for capturing atmospheric nitrogen to nourish...