M.V.S. NAIDU*, E. Purandhar and. Characterization, Classification and Fertility Status of Soils in Semi-arid Agro-ecological Region of Puttur Mandal in Chittoor District, Andhra Pradesh. Journal of the Indian Society of Soil Science, India, v. 68, n. 1, 2020. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/104542.. Acesso em: 20 sep. 2024.