M. Jayalakshmi, G. Prasadbabu, B. H. Chaithanya, R. Bindhupraveena, and T. Srinivas, “Impact of Soil Test Based Fertilizer Application on Yield, Soil Health and Economics in Rice”, Indian J Ext Edu, vol. 57, no. 4, pp. 147–149, Sep. 2021, Accessed: Oct. 22, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJEE/article/view/115539