Concentration And Time of Administration Plant Growth Promoting Rhizobacteria (PGPR)On The Growth And Yield Of Onion Crops (Allium ascalonicum L.). j.pertanian [Internet]. 2024 Apr. 30 [cited 2025 Jul. 5];1(1):1-8. Available from: https://journal-upprl.ac.id/index.php/agrokopis/article/view/6