Use of Ameliorants to Increase Growth and Yield of Maize (Zea mays L.) in Peat Soils of West Kalimantan. j Trop. Soils [Internet]. 2015 Apr. 16 [cited 2025 Oct. 31];19(1):35-41. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/198