T.K. SRIVASTAVA AND K.P. SINGH, R.R. Verma. Fertility Status of Major Sugarcane Growing Soils of Punjab, India. Journal of the Indian Society of Soil Science, India, v. 64, n. 4, 2017. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/69043. Acesso em: 6 jun. 2026.