RASOOL, K.; WAJID, A.; SANAULLAH, .-.; GHAFFAR, A.; SHOAIB, M.; ARSHAD, M.; ABBAS, S. Optimizing nitrogen rate and planting density for sunflower under irrigated conditions of Punjab. SAARC Journal of Agriculture, [S. l.], v. 13, n. 1, p. 174–187, 2015. DOI: 10.3329/sja.v13i1.24190. Disponível em: https://banglajol.info/index.php/SJA/article/view/24190. Acesso em: 16 aug. 2024.