1.
Krutkun T, Boondown S. Efficiency of Residual Phosphorus of 16-20-0 Fertilizer in Some Paddy Soils. Agr. Nat. Resour. [internet]. 1985 May 1 [cited 2026 Sep. 18];19(2):100-3. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/242422