DUBEY, Akhila Nand; RAHA, Priyankar; KUNDU, Arnab. Response of soil applied lignite coal derived humic acid on yield and quality of spinach (Spinacia oleracea L.). Vegetable Science, [S. l.], v. 46, n. 1&2, p. 72–77, 2019. DOI: 10.61180/xjtbw277. Disponível em: https://isvsvegsci.in/index.php/vegetable/article/view/246.. Acesso em: 8 jul. 2024.