K.D.N. SINGH AND A.P. SINGH, U.N. Umesh, Vipin Kumar R.K. Prasad. Integrated Effect of Fertilizers and Organic Manure on the Forms of Zinc and their Availability under Sugarcane-based Cropping System in Calciorthents. Journal of the Indian Society of Soil Science, India, v. 61, n. 4, 2014. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/37758. Acesso em: 17 jul. 2026.