Role of seaweed extract and NPK on the growth and yield of onion (Allium wakegi L. Varaggregatum)Ramal Yusuf, Abdul Syakur, Yulianti Kalaba and Randi RandiE3S Web of Conf., 373 (2023) 03020DOI: https://doi.org/10.1051/e3sconf/202337303020