Prastowo E, Hikmah NF, Baon JB. Ammonia Volatilization in Cocoa Farm as Affected by Sugarcane Filter Cake Supply at Different Urea and Soil Moisture Levels. PP [Internet]. 2015Feb.26 [cited 2026Mar.30];30(3):208-19. Available from: https://www.ccrjournal.com/index.php/ccrj/article/view/63