Changes in Soil Available Phosphorus, Leaf Phosphorus Content and Yield of Sword Bean (Canavalia ensiformis (L.) DC.) by Application of SP-36 and Phosphate Rock on Acid Upland Soil of East Lampung. j Trop. Soils [Internet]. 2016 Feb. 2 [cited 2025 Nov. 5];20(1):29-36. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/218