“Internal nutrient supply capacity of vertisols for rice in Chhattisgarh agro-climatic conditions of India”, Bangladesh J. Agric. Res, vol. 32, no. 4, pp. 501–507, Oct. 2008, Accessed: Jul. 01, 2026. [Online]. Available: https://banglajol.info/index.php/BJAR/article/view/1268