Biological and Life Sciences

• Identification of Microbial Contamination in Beef at Traditional Markets in Serdang Bedagai Regency

  Mhd Teguh Dwi Pradana, Nur Asmaq, Purwo Siswoyo

  1367-1374

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• The Effect of Fermentation Duration on the NPK Content and C/N Ratio in Chicken Manure Using M21

  Rizky Hidayah Siregar, Kurniawan Sinaga

  1375-1382

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• The Effect of Organic Growing Media and Amino Acid Fertiliser Application on the Growth of Arabica Coffee (Coffea Arabica) Seedlings

  Roganda Tambunan, Sri Mahareni Br Sitepu, Andi Setiawan

  1383-1390

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