Growth Response of Romaine (Lettuce Romaine) Plants in the DFT (Deep Flow Technique) Hydroponic System Fertilized with Chinese Cabbage Leaves and AB Mix Fertilizer

Hydroponic is one of the future agricultural systems because it can be cultivated in various places, such as in villages, in cities, in open land, even above apartments. Hydroponic can be cultivated throughout the year regardless of the season. In this study, two types of fertilizers were used, namely Chinese Cabbage leaf and AB mix. The preparation of AB mix nutrition solution is done by dissolving two kinds of AB mix, AB mix A (83 grams) with AB mix B (83 grams) by dissolving both of them into 2 liters of water. Vegetables are one of the horticultural products which are in great demand by the public because they have high nutritional content and are beneficial for health. One type of vegetable that almost everyone needs is romaine lettuce. The purpose of this study was to determine growth with nutrient AB mix and leaves of Chinese Cabbage. This study was tested by one-way analysis of ANOVA and Duncan with a = 0.05. The results showed the difference in the growth of romaine plants, the width of the leaves was wider, and the roots were longer when AB mix nutrition was used compared with leaves of Chinese Cabbage. Keywords: AB mix, romaine plants (lettuce romaine), Hydroponic (Deep Flow Technique)