SHEEBA REBECCA ISAAC, V. Anjaly* and. Sustained Productivity in High Phosphorus Soils through Fertility Management in Cowpea-Amaranthus Cropping Sequence. Journal of the Indian Society of Soil Science, India, v. 69, n. 3, 2022. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/119763. Acesso em: 5 jun. 2026.