J Zeng. MACRONUTRIENT DEFICIENCY SYMPTOMS IN <em>BETULA</em> <em>ALNOIDES</em> SEEDLINGS. JTFS [Internet]. 2022 Jun. 11 [cited 2024 Apr. 28];22(4):403-1. Available from: https://jtfs.frim.gov.my/jtfs/article/view/982