GANGOPADHYAY, S.K.; REDDY, G.P. OBI. Spatial variability of soil nutrients under the rice-fallow system of eastern India using geostatistics and Geographic Information System. Journal of Soil and Water Conservation, India, v. 21, n. 1, 2022. Disponível em: https://epubs.icar.org.in/index.php/JSWC/article/view/126174. Acesso em: 3 jul. 2026.