Santos, Zelia Camoes dos and Sugiarno, Stefan Saputra and Plessers, Timothy Amadeus Filhend and Hardjo, Popy Hartatie (2025) Effect Of Nutrient Solution Concentration On The Growth Performance Of Pakcoy Mustard (Brassica rapa L.) Under A Sensor-Based Nutrient Film Technique Hydroponic System. Jurnal Agrotek Tropika (JAT), 13 (4). pp. 1162-1169. ISSN 2337-4993; E-ISSN 2620-3138