Synergistic Effects of Biochar and Palm Fiber Amendments on Soil Water Retention and Pak Choi (Brassica rapa subsp. chenensis) Growth. Libyan Open Univ J Appl Sci [Internet]. 2026 May 11 [cited 2026 Jun. 20];2(1):412-26. Available from: https://oujournals.ly/index.php/LOUJAS/article/view/267