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Oswaldus O, Widowati W, Karamina H. Impact of Biochar Use After Five Years in Vertisol and NPK Fertilization on Yield of Shallot (Allium ascalonicum L.). bdp [Internet]. 9Aug.2022 [cited 29Mar.2024];18(1):35-1. Available from: https://ojs3.unpatti.ac.id/index.php/bdp/article/view/5549