Nutrient film in hydroponic system providing organic fertilizer of the Tithonia diversifolia and AB Mix for lettuce

Abstract

This study uses the Nutrient Film Technique (NFT) hydroponic system to grow and produce green lettuce (Lactuca sativa) to determine the impact of POC kipahit and AB Mix on those processes. Five treatments were used in this study's Completely Randomized Design (CRD. Each treatment was repeated four times, with five net pots, one for each replication containing lettuce plants. The hydroponic installation used in this research uses a 21-inch pipe. The pipe is designed to be an NFT system with a pipe slope of 2–10%, consisting of five holes with a distance between holes of 10 cm. Next, the NFT hydroponic installation was set up in the experimental area, with each installation having a nutrient tank attached and marked for each treatment. The acquired data was examined quantitatively, and analysis of variance (ANOVA) and tests of means were performed using Duncan's Multiple Range Test (DMRT) at the 5% level to verify whether the treatments were significantly different. SPSS 20 and Microsoft Excel were used for data processing and analysis. Using the NFT hydroponic system, the POC kipahit and AB Mix supply significantly impacted the development and production of green lettuce. A concentration combination of POC kipahit and AB Mix that can increase the growth and production of green lettuce compared to the use of 100% AB Mix has not yet been obtained.