KUMAR, ASHOK; SINGH, RANBIR; CHHILLR, R K. Nitrogen requirment of fennel (Foeniculum vulgare) based cropping system. The Indian Journal of Agricultural Sciences, Delhi, India, v. 76, n. 10, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/3195. Acesso em: 27 oct. 2025.