Rekomendasi Pemupukan NPK Pada Tanaman Kakao (Theobroma Cacao) Di Desa Metun Sajau Kecamatan Tanjung Palas Timur, Kabupaten Bulungan, Provinsi Kalimantan Utara: Recommendations For NPK Fertilization on Cocoa (Theobroma Cacao) Plants in Metun Sajau Village, East Tanjung Palas Sub-District, Bulungan District, North Kalimantan Province. JES 2022, 11 (2), 126-135. https://doi.org/10.20956/ecosolum.v11i2.23487.