The Effect of Nano Technology Liquid Organic Fertilizer on the Growth of Green Lettuce (Lactuca sativa L. var longifolia) Cultivated Hydroponically

Abstract

Increasing the production of green lettuce plants on limited land can be done using a hydroponic wick cultivation system. The hydroponic wick system has the weakness that nutrients will precipitate, so nanotechnology is needed to break down the particles in the nutrient deposits. This research aims to determine the effect of nanotechnology liquid organic fertilizer on the growth of green lettuce (Lactuca sativa L. var. longifolia) which is cultivated hydroponically. This research used a Completely Randomized Design (CRD) method consisting of 5 treatments and 4 replications, namely P1 (100% AB Mix), P2 (75% AB Mix  + 25% POC Nano), P3 (50% AB Mix + 50% POC Nano), P4 (25% AB Mix + 75% POC Nano), P5 (100% POC Nano). The data obtained were analyzed using ANOVA and continued with the DNMRT test at the 5% level. The results showed that P4 was the tallest plant with a plant height of 38.875 cm, P3 had the largest number of leaves, namely 14.5, P4 had the widest leaves, namely 53.3825 cm2, P4 had the highest wet weight, namely 33.25 g, and P2 was the dry weight the highest was 1.83 g. Based on the results of research that has been carried out, it is concluded that the use of nanotechnology liquid organic fertilizer has an effect on the growth of green lettuce cultivated hydroponically with P4 as the best concentration.