Automated Water and Nutrient Filling for the Reservoir of a Kratky Hydroponic for Pak Choi (Brassica rapa subsp chinensis) Cultivation: PENGISIAN AIR DAN NUTRISI OTOMATIS PADA RESERVOIR HIDROPONIK KRATKY UNTUK BUDIDAYA PAKCOY (Brassica rapa subsp chinensis). at [Internet]. 2025 Oct. 14 [cited 2026 Apr. 26];:98-107. Available from: https://agritech.unhas.ac.id/ojs/index.php/at/article/view/1871