INTODIA, S K; TOMAR, O P. Effect of sulphur application on growth and yield of sunflower (Helianthus annuus)*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 67, n. 1, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/29845. Acesso em: 29 oct. 2025.