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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) JURNAL ILMU PERTANIAN Jurnal Penelitian Karet Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Agricultural Research Journal of Sylva Indonesiana International Journal of Basic and Applied Science Action Research Literate (ARL) Obor: Oikonomia Borneo PERTANIAN TROPIK Journal of Environmental and Development Studies
Nini Rahmawati
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Social Sciences Veterinary

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Journal : PERTANIAN TROPIK

 1 
The Effect of Gibberelin in Salin Soil on Growth of Vetiver (Vetiveria zizanioides L.) Novita, Aisar; Rahmawati, Nini; Cemda, Abdul Rahman; Nora, Silvia; Harahap, Fitra Syawal
Jurnal Online Pertanian Tropik Vol. 8 No. 1 (2021): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (620.804 KB) | DOI: 10.32734/jopt.v8i1.6359

Abstract

Salinity is one of the problems in agricultural land in the world, including in Indonesia. Vetiver is quite tolerant of planting in saline soils at a certain level of salinity, but vetiver growth is inhibited at high salinity levels. The purpose of this study was to evaluate the effect of gibberellin in saline soils on the growth and production of vetiver (Vetiveria Zizanioides L.). This research was conducted in the greenhouse of the Faculty of Agriculture, Universitas Sumatra Utara, Medan. This study used a non-factorial completely randomized design, It was salinity stress (S) which consisted of 3 factors: Gibberellin concentrations of 0 (without treatment), 50 ppm, and 100 ppm. The results of this study indicate that giving Gibberellins in salinity stress conditions has a significant effect on the observed variables of plant height, specific leaf area, and cuticle thickness.
The analysis of decomposition rate of Vermigot fertilizer (vermicompost and kasgot) by utilizing of Black Soldier Fly larvae and earthworms with and without technique feeding Sebayang, Nur Ulina Warnisyah; Sabrina, Tengku; Rahmawati, Nini; Lubis, Nursiani
Jurnal Online Pertanian Tropik Vol. 8 No. 3 (2021): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.842 KB) | DOI: 10.32734/jopt.v8i3.7423

Abstract

ABSTRACT One of the efforts in managing waste is to carry out environmentally friendly bioconversion with one of the most popular composting is vermicomposting. The use of insects in composting is also one of the new technologies, namely the Black Soldier Fly larvae. The combination of two types of decomposing organisms that are synergistic can increase the effectiveness of the decomposition process. The purpose of this study was to analyze the rate of decomposition of vermigot fertilizer in the treatment of cow manure and banana stem waste by utilizing a combination of BSF larvae and earthworms. This study used a non-factorial randomized block design method with 2 techniques (feeding and without feeding), namely D0 = without decomposers; D1 = earthworm (100%); D2 = BSF larvae (100%); D3 = earthworms: BSF larvae (50% : 50% kg); D4 = earthworms : BSF larvae (25% : 75%); D4 = earthworms: BSF larvae (75% : 25%). The results of this study showed that the pH of the vermigot ranged from neutral to slightly alkaline (6.4 - 7.8) in the non-feeding technique, while the pH of the vermigot in the feeding technique was slightly acidic (5.7 - 5.8). The temperature of the vermigot in the non-feeding and feeding technique is the same, ranging from (26 - 31oC) but in the non-feeding technique the temperature tends to rise until the 5th day and tends to decrease on the 7th day to the 21st day. Meanwhile, the temperature of the vermigot with the feeding technique tends to experience fluctuations.
Co-Authors Afifudin Dalimunthe, Afifudin Andi Setiawan Arie Hapsani Hasan Basri Asmarlaili Sahar Hanafiah Cemda, Abdul Rahman Darma Bakti Delvian Fitria Hamidah Hanum Harahap, Azmi wijayanti Harahap, Fitra Syawal Hilda Julia Hutagaol, Adventris Kurnia Selekta Etika Harefa Lubis, Nursiani Luthfi Aziz Mahmud Siregar Mariana, Merlyn Nur Ulina Warnisyah S Sebayang, Nur Ulina Warnisyah S Pratomo, Bayu prit, Kanvel Ridwansyah Rini Susanti Rosmayati Rosmayati Rosmayati Rosmayati Rosmayati Sihotang, Tambun Silvia Nora, Silvia Sinurat, Darwin Tengku Sabrina Walida, Hilwa Yaya Hasanah Yuliddar Abbas, M Astri Zulfansyah, Ichfan