“The Effect of Biochar Application on Soil Under Bamboo Stands on Nutrient Accumulation in the Plant Tissues of Mustard Greens (Brassica juncea): Dampak Pemberian Biochar Pada Tanah Dibawah Tegakan Bambu Terhadap Akumulasi Unsur Hara Dalam Jaringan Tanaman Sawi (Brassica juncea)” (2025) Nabatia, 13(1), pp. 86–95. doi:10.21070/nabatia.v13i1.1658.