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Amnat Suwanarit, Chiranee Vanichkul, Preeda Parkpian. Zinc Critical Levels and Supplying Powers of Takhli, Loei, and Khorat Soil Series for Corn Production. Agr. Nat. Resour. [internet]. 1992 Dec. 30 [cited 2026 Aug. 28];26(4):432-40. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/241809