“Effects of Tillage in Combination With Spacing on Yield and Proximate Composition of Sweet Potato (Ipomoea Batatas) Grown in an Abandoned Paddy Field”. Tropical Agriculture 99, no. 1 (April 25, 2022). Accessed July 14, 2025. https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/8201.