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). (2025). Jurnal Agritechno, 98-107. https://agritech.unhas.ac.id/ojs/index.php/at/article/view/1871