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Putra Utama
Departemen Teknik Sipil FT. UNDIP JL. Prof. H. Soedarto SH., Tembalang, Semarang 50275
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Social Sciences

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Abundance Of Soil Fauna In Beneng Taro (Xanthosoma undipes K. Koch) AT Various Altitudes Saputra, Agis; Hermita, Nuniek; Sulistyorini, Endang; Utama, Putra
Jurnal Agroekoteknologi Terapan Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.66639

Abstract

Beneng Taro (Xanthosoma undipes K. Koch) is a local food crop from Gunung Karang, Banten, with high nutritional potential whose productivity is closely related to soil biological conditions. This study evaluated soil fauna abundance and diversity in talas beneng cultivation areas across three elevations: highland (851-858 m asl), midland (590-602 m asl), and lowland (343 m asl). A quantitative exploratory approach was applied using pitfall traps with ten replications per site and composite soil sampling at 0-20 cm depth. Soil chemical properties (pH, C-organic, N-total, and C/N ratio) were analyzed, and diversity was calculated using the Shannon-Wiener index. A total of seven soil fauna orders were recorded, with Hymenoptera dominating all sites. The midland exhibited the highest abundance (67 individuals), while the lowland showed the highest diversity index (H’=1.077 medium category). Variations in abundance and diversity were associated with differences in soil pH, nitrogen availability, and C/N ratio, which influenced decomposition rates and nutrient dynamics. The findings indicate that elevation-related environmental factors significantly shape soil fauna communities and underscore the importance of soil fertility management in supporting sustainable talas beneng cultivation. Keywords: Abundace, Altitude, Beneng taro, Soil Chemical Properties, Soil Fauna.
The Effect of Rice Washing Water Concentration and Growing Media Composition on the Growth and Yield of Tomato Plants (Solanum lycopersicum L.) Sinaga, Daniel Carlos Pinondang; Rumbiak, Julio Eiffelt Rossaffelt; Utama, Putra; Firnia, Dewi
Jurnal Agroekoteknologi Terapan Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.67334

Abstract

Tomato (Solanum lycopersicum L.) production in Banten has significantly declined due to land constraints and suboptimal cultivation practices, necessitating sustainable alternatives like fermented rice wash water (RWW) and optimal planting media. This study aimed to determine the most effective combination of RWW concentration and growing media composition to enhance tomato growth and yield in polybag cultivation. The research was conducted from November 2025 to March 2026 at Universitas Sultan Ageng Tirtayasa, Banten, using a factorial Randomized Complete Block Design. Factors included RWW concentrations (0, 50, 100, and 150 mL/L) and four media compositions (soil; soil+manure; soil+husk charcoal; and soil+manure+husk charcoal).The results showed that the soil-only medium (B0) produced the best vegetative performance, particularly for plant height and stem diameter. Specifically, the interaction of 100 mL/L RWW and soil (S2B0) yielded the highest plant height of 35.60 cm at 4 weeks after transplanting. Furthermore, a significant interaction was observed in the generative phase, where 50 mL/L RWW combined with soil and rice husk charcoal (S1B2) achieved the highest productivity, reaching a fruit weight of 158.00 g and 11.33 fruits per plant. These findings suggest that integrating 50 mL/L RWW with porous media is the most effective strategy for optimizing tomato yield
Co-Authors Abdul Hasyim Sodiq, Abdul Hasyim Andi Apriany Fatmawaty, Andi Apriany Andreas Raditya Wirawan, Andreas Raditya Ayuni, Sarah Dewi Firnia Dusep Suhendar, Dusep Imas Rohmawati, Imas Khafiizhi, Muhamad Lia Uzliawati Luh Made Indah Sri Handari Adiputra Maseva, Salsabila Mieke Rochimi Setiawati Muslimah, Rahma Nurul Muztahidin, Nur Iman Natawijaya, Azis Nuniek Hermita, Nuniek Nurmayulis Rahmawati, Imas Roidelindho, Kiki Rumbiak, Julio Eiffelt Rossaffelt Saesarani, Ayu Saputra, Agis Sinaga, Daniel Carlos Pinondang Sulistyorini, Endang Susiyanti, Susiyanti Sutarto Edisono, Sutarto Yulianti Tampubolon, Melani Ratni Zahratul Millah