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 69, no. 3 (January 3, 2022). Accessed June 5, 2026. https://epubs.icar.org.in/index.php/JISSS/article/view/119763.