MURTHY, I.Y.L.N; MURALIDHARUDU, Y; BABU, S.N Sudhakara. Quantity-intensity dynamics of potassium in sunflower (Helianthus annuus)- sorghum (Sorghum bicolor) cropping sequence. The Indian Journal of Agricultural Sciences, Delhi, India, v. 75, n. 7, 2005. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/9083. Acesso em: 27 oct. 2025.