Tudsri, S., Bumrung, N. and Jingnay, Y. (1999) “Productivity and Quality of CP-Pangola (Digitaria decumbens cv. CP-1) under Different Managements III Effect of Split Nitrogen Application”, Agriculture and Natural Resources. Bangkok, Thailand, 33(3), pp. 303–309. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/240446 (accessed: 17 September 2026).