Effect of Poultry Manure and Vertisols Matter on Availability and Leaching of Macronutrients in Coastal Sandy Soil. j Trop. Soils [Internet]. 2013 Jul. 1 [cited 2025 Oct. 31];16(1):17-24. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/116