Werasopon O. Green Manuring Effects of Perennial Annual and Cover legumes on Upland Rice Yield and Some Properties of Soils. Thai Agric.Res.J. [internet]. 1998 Dec. 22 [cited 2026 Sep. 30];16(3):178-84. available from: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/236336