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All Journal Jurnal Agronomi Tanaman Tropika (JUATIKA) Journal of Horticulture Production Technology
Rennanti Lunnadiyah Aprilia
Universitas Ma'arif Nahdlatul Ulama Kebumen
Agriculture, Biological Sciences & Forestry

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Respon Empat Varietas Bayam terhadap Azotobacter dan Rhizobium Rennanti Lunnadiyah Aprilia; Khanifatun Mu’minah
Journal of Horticulture Production Technology Vol 4 No 1 (2026)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jhpt.v4i1.4926

Abstract

Excessive dependence on inorganic fertilizers in spinach cultivation may reduce soil quality; therefore, more environmentally friendly fertilization alternatives, such as biofertilizers, are needed. However, information on the effectiveness of Azotobacter and Rhizobium across different spinach varieties remains limited. This study aimed to evaluate the effects of biofertilizer type and variety on the growth and biomass of spinach. The experiment was conducted from February to July 2025 using a 2 × 4 factorial randomized complete block design with three replications. The first factor was biofertilizer type, consisting of Azotobacter (H1) and Rhizobium (H2), while the second factor was spinach variety, namely green spinach (V1), uproot spinach (V2), red spinach (V3), and batik spinach (V4). Observed variables included leaf number, plant height, leaf area, root length, plant fresh weight, root fresh weight, plant dry weight, and root dry weight. Data were analyzed using analysis of variance followed by Duncan’s Multiple Range Test at the 5% level. Variety had a highly significant effect on almost all parameters, except root length. The interaction between biofertilizer and variety had a highly significant effect on leaf number, plant height, leaf area, plant dry weight, and root dry weight, and a significant effect on plant fresh weight and root fresh weight. The best shoot performance was obtained from H1V1, with 14.44 leaves, plant height of 26.94 cm, leaf area of 637.22 cm², and plant dry weight of 1.66 g, whereas the highest root fresh weight was recorded in H2V3 at 5.09 g.
Response of Four Lettuce Varieties to the NFT Hydroponic System with 3% H2O2 Application Rennanti Lunnadiyah Aprilia; Alfi Nur Laila
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.5432

Abstract

Root health disorders are among the primary constraints in hydroponic lettuce cultivation, especially under conditions of suboptimal aeration, high temperatures, and fluctuating humidity. Hydrogen peroxide (H2O2) is commonly used to increase dissolved oxygen availability, suppress certain pathogens, and promote root health. This study aimed to evaluate the response of four lettuce varieties grown in a Nutrient Film Technique (NFT) hydroponic system with the application of 3% H2O2 and to identify the variety with the best agronomic performance. The research was conducted from October to December 2023 at Kebun Sayur 24 Hidroponik, Bojongsari Village, Alian District, Kebumen Regency. The experiment was arranged in a nonfactorial completely randomized design with four varieties—RZ Junction, Romaine, Mondai, and Rex—each replicated six times. The observed variables included plant height, root length, number of leaves, fresh plant weight, dry plant weight, fresh root weight, dry root weight, and leaf area at harvest, 45 days after sowing. Data were analyzed using analysis of variance followed by the 5% Honestly Significant Difference test. The results showed that varietal differences had a highly significant effect on plant height, number of leaves, dry plant weight, fresh root weight, dry root weight, and leaf area, but had no significant effect on root length and fresh plant weight. Romaine showed the best performance in plant height (14.37 cm), fresh root weight (9.17 g), dry root weight (0.66 g), and leaf area (671 cm²), whereas Rex produced the highest number of leaves (15.50). Therefore, Romaine was the most promising variety for NFT hydroponic lettuce cultivation under 3% H2O2 application.
Co-Authors Alfi Nur Laila Khanifatun Mu’minah