Pengembangan dan Pengujian Alat Monitoring dengan Penambahan Sistem Kontrol PH Otomatis pada Hidroponik Tanaman Bayam Merah (Amaranthus Tricolor L.)

Abstract

Microcontroller based nutrient pumping system design needs to be applied to agriculture. This research aims to examine the effect of the servo pump angle using an automatic pH controller on red spinach hydroponics (Amaranthus tricolor L.) by adjusting the pump servo angle on an automatic pH control device. This research used a non-factorial completely randomized design. In this research, the best servo pump angle is found at the servo angle opening of 75° (S2). The results of this research showed that the growth of plant height was found at the servo angle opening of 75° (S2) with an average plant height of 24,21667 cm. The highest number of leaves was found at the servo angle opening of 75° (S2), with an average number of leaves per plant of 15 leaves. The biggest wet weight is found in the servo angle opening of 75° (S2) with an average wet weight of 21.6 grams. The biggest dry weight is found at the servo angle opening of 75° (S2) with an average dry weight of 2.271667 grams.