MANAF, F. .; ISMAIL, R. .; SUKOR, A. S. A. . Effect of Different Nitrogen Percentage Input On Soil Fertility, Plant Nutrients and Yield of Organic Spinach (Amaranthus Spp.). Research in Agriculture Livestock and Fisheries, [S. l.], v. 9, n. 2, p. 135–144, 2022. DOI: 10.3329/ralf.v9i2.61619. Disponível em: https://www.banglajol.info/index.php/RALF/article/view/61619. Acesso em: 5 may. 2024.