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Thammachot, Nasaporn
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Sustainable Nutrient Management for NFT Hydroponic Lettuce: Integrating Kipahit (Tithonia diversifolia) Liquid Organic Fertilizer with AB-Mix Linh, Ta Thi Thuy; Thammachot, Nasaporn
Integrated Science Education Journal Vol 6 No 3 (2025): September
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v6i3.2118

Abstract

Purpose of the study: This study aims to determine the optimal combination of kipahit liquid organic fertilizer concentration and AB Mix to enhance the growth and production of green lettuce using the nutrient film technique in hydroponics. Methodology: This study used a completely randomized design with 5 treatments, namely P1 = liquid organic fertilizer kipahit 0% + AB Mix 100% (control), P2 = liquid organic fertilizer kipahit 25%+AB Mix 75%, P3 = liquid organic fertilizer kipahit 50%+AB Mix 50%, P4= liquid organic fertilizer kipahit 75%+AB Mix 25%, P5=POC kipahit 100% + AB Mix 0%. Data analysis used the test of variance (ANOVA) and the DMRT follow-up test at the 5% level. Main Findings: The provision of AB Mix and liquid organic fertilizer Kipahit nutrition had a significant effect on all parameters. P2 is a combination treatment of AB Mix and liquid organic fertilizer Kipahit, which can reduce the use of AB Mix nutrients on the parameters of plant height, leaf length, leaf width, number of leaves, and plant wet weight, but cannot increase plant growth and production of green lettuce compared to the use of 100% AB Mix. No combination of kipahit liquid organic fertilizer concentration and Ab Mix could increase the growth and production of green lettuce compared to using 100% AB Mix. Novelty/Originality of this study: This study provides new insights into the potential of kipahit liquid organic fertilizer as a partial substitute for AB Mix in NFT hydroponics for lettuce production.
Advancing Brackish Water Aquaculture: Salinity Optimization for Superior Hatching and Survival of Tilapia (Oreochromis niloticus) Razak, Nurul Fasihah; Thammachot, Nasaporn; Santiag, Cecilia S
Integrated Science Education Journal Vol 7 No 2 (2026): March
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v7i2.2136

Abstract

Purpose of the study: The purpose of this study is to determine the effects of different salinity levels on the hatching success and early survival of Nile tilapia (Oreochromis niloticus) and to identify the optimal salinity range for improving seed quality in brackish-water aquaculture. Methodology: This study used a Completely Randomized Design with four salinity treatments. Incubation utilized fiberglass tanks (100 L), a Milwaukee MA887 refractometer, Hanna HI98107 pH meter, Lutron DO-5509 DO meter, and digital thermometers. Fertile eggs from the Kunti strain broodstock were acclimated and incubated. Data were analyzed using Shapiro–Wilk, Levene, One-Way ANOVA, LSD/Tukey tests in SPSS 26. Main Findings: Shapiro–Wilk and Levene tests confirmed that the data were normal and homogeneous. One-Way ANOVA showed significant effects of salinity on hatching rate and survival. The 10 ppt treatment produced the highest hatchability and larval survival, significantly outperforming the 0,5, and 15 ppt groups. Post-hoc LSD identified 10 ppt as the optimum level. Overall, moderate salinity consistently yielded the best early-performance outcomes for Oreochromis niloticus larvae. Novelty/Originality of this study: This study provides new insights by identifying the optimal salinity range for maximizing hatchability and early larval survival of Oreochromis niloticus using controlled embryonic incubation. Unlike previous works, it integrates precise salinity treatments, standardized hatchery instrumentation, and rigorous statistical testing to define an evidence-based salinity benchmark. The findings advance seed-production strategies for brackish-water aquaculture systems.
Co-Authors Linh, Ta Thi Thuy Razak, Nurul Fasihah Santiag, Cecilia S