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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Agronomi Tanaman Tropika (JUATIKA) AGROVITAL : Jurnal Ilmu Pertanian Jurnal Agrotek Lestari Jurnal Agroplasma AGRINULA: Jurnal Agroteknologi dan Perkebunan International Journal Of Science, Technology & Management (IJSTM) Jurnal Visi Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Tjut Nyak Dhien PERTANIAN TROPIK Contributions of Central Research Institute for Agriculture All Fields of Science Journal Liaison Academia and Sosiety Journal Liaison Academia and Society
Roswita Oesman
Program Studi Agroteknologi Fakultas Pertanian Universitas Pembinaan Masyarakat Indonesia
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Journal : Jurnal Agroplasma

 1 
Pengaruh Pemberian Pupuk Organik Cair VIT-O Dan Media Tanam Terhadap Pertumbuhan Tanaman Cabai Rawit (Capsicum frutescens L.) Waruwu, Derianus; Zulfida, Ida; Oesman, Roswita
JURNAL AGROPLASMA Vol 10, No 2 (2023): JURNAL AGROPLASMA VOLUME 10 NO 2 TAHUN 2023
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v10i2.4955

Abstract

Chili is a seasonal fruit plant. It is very popular because of its spicy taste and has been a spice component in every dish for a long time. Almost every native Indonesian dish uses chilies. Furthermore, in 2019, cayenne pepper production was 49,246 tons. Furthermore, in 2020, cayenne pepper production will reach 61,160 tons. Furthermore, in 2021, production will reach 78,663 tons (BPS, 2022). Liquid organic fertilizer (POC) is a type of fertilizer made from organic materials. Organic fertilizer is the result of the decomposition of organic materials that are broken down (renovated) by microbes, the final result of which can provide the nutrients needed by plants for plant growth and development. Apart from using liquid organic fertilizer, the composition of soil media also plays an important role in increasing the growth of cayenne pepper plants. Planting media play an important role in supporting plant growth and providing a supply of nutrients for plants. This research used a randomized block factororial design that consisted of two factors, namely Factor 1. Various types of Vit-O liquid organic fertilizer concentrations consisting of 3 treatment levels, namely P0 = control (Vit-O liquid organic fertilizer), P1 = 100 ml liquid organic fertilizer Vit-O, and P2 = 200 ml liquid organic fertilizer Vit-O. Factor 2. Planting Media Composition M1 = 25% cowshed compost + 25% husk charcoal + 50% soil; M2 = 50% cowshed compost + 25% husk charcoal + 25% soil; M3 = 25% cowshed compost + 50% husk charcoal + 25% soil. Based on the research results, it can be concluded that: the single effect of giving Vit-O organic fertilizer is significantly different on plant height at the ages of 14 dap, 28 dap, and 35 dap, but is not significantly different at the ages of 21 dap, 42 dap, and 49 dap, and number of leaves at 14 days after; The single effect of differences in the composition of the planting media was significantly different on plant height at 14 dap, 28 dap, and 35 dap, and number of leaves at 14 dap and 21 dap, but was not significantly different on plant height at 21 dap, 42 dap, and 49 dap, and number of leaves at 28 days after planting, 35 days after planting, 42 days after planting, and 49 days after planting. The interaction effect of providing Vit-O organic fertilizer was significantly different on the production of sample plants in harvest I, but not significantly different in harvest II and harvest III, plant height, and number of leaves.
Pengaruh Pemberian Pupuk Organik Cair Nasa dan Zat Pengatur Tumbuh Terhadap Pertumbuhan dan Hasil Produksi Tanaman Pakcoy (Brassica rapa L.) Padang, Lulu Aprianti; Yana, Yelfi; Oesman, Roswita
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7880

Abstract

This study aims to analyze the effect of using NASA liquid organic fertilizer and growth regulators on the growth and production of pak choy (Brassica rapa L.). This study used an experimental method with a randomized block design (RAK) consisting of two main factors, namely the dosage of NASA liquid organic fertilizer and growth regulators. The dosage of liquid organic fertilizer used was 2 ml/L of water, 5 ml/L of water, and 8 ml/L of water, while the dosage of growth regulators used was 150 ml/L of water, 200 ml/L of water, and 250 ml/L of water. The parameters observed included plant height, number of leaves/sample, number of leaves/plot, and fresh weight/sample. The results showed that the combined use of NASA liquid organic fertilizer and growth regulators had a significant effect on pak choy growth parameters. Keywords: NASA liquid organic fertilizer, growth regulators, pakchoy
Pengaruh Biostimulan dan Pupuk Kandang Sapi Terhadap Produksi Tanaman Cabai Rawit (Capsicum frutescens L.) Zai, Andi Rahhman; Oesman, Roswita; Dewi, Dora Silvia
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7887

Abstract

This study aims to determine the effect of biostimulant and cow manure on the production of cayenne pepper plants (Capsicum frutescens L.). The research problem departs from the fluctuations in cayenne pepper production in North Sumatra, which is influenced by the availability of nutrients in the soil. The study was conducted using a Group Random Design (RAK) with two factors, namely the dose of biostimulants B0 (0 ml/L), B1 (10 ml/L), B2 (15 ml/L) and B3 (20 ml/L) with a dose of cow manure S0 (0 g/polybag), S1 (100 g/polybag), S2 (200 g/polybag) and S3 (300 g/polybag). The observed parameters are production weight per sample and per plot. Data were analyzed using ANOVA and Duncan follow-up test (DMRT) at a confidence level of 5%. The results showed that the interaction of biostimulants and cow manure had a significant effect on the production weight per sample, with the best combination of B1S3 treatment (10 ml/L of biostimulant and 300 g/polybag of cow manure) yielding an average of 103.67 g per sample. Meanwhile, the single application of cow manure had a significant effect on the production weight per plot, with the highest dose of S3 (300 g/polybag) yielding 159.75 g per plot. The conclusion of the results of this study is that the use of a combination of low-dose biostimulants and high-dose cow manure can increase the production of cayenne pepper (Capsicum frutescens L.) plants, significantly compared to no treatment or low doses of cow manure.  Keywords: cayenne pepper, biostimulant, cow manure
Respon Pertumbuhan dan Produksi Bawang Merah (Allium ascalonium L.) Terhadap Pupuk NPK dan Dolomit Laia, Desmawati; Dewi, Dora Silvia; Oesman, Roswita
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7921

Abstract

This study was conducted at the experimental field of the Indonesian Community Development University (UPMI), Jalan Balai Desa Pasar 12 Marendal II, Patumbak District, Deli Serdang Regency, Medan. The elevation of the site is approximately 40 metres above sea level. The study was conducted from May to July 2025. The efforts required to meet the production needs of red onions involve enhancing soil productivity by utilising NPK fertiliser and dolomite to achieve maximum red onion production. This study employed a randomised block design (RBD) with two factors: NPK fertiliser and dolomite fertiliser. For precision, the experiment was repeated three times. The first factor was NPK fertiliser (N) with four levels: N0 = Control, N1 = 10 g/polybag, N2 = 20 g/polybag, and N3 = 30 g/plant. The second factor was dolomite (D) with four levels: D0 = Control, D1 = 10 g/polybag, D2 = 20 g/polybag, and D3 = 30 g/polybag. The results of the ANOVA test that showed significant effects were followed up with a 5% DMRT test. The response of NPK fertiliser treatment to plant height at 2 mst was significantly influenced, but at plant height observations of 3 mst, 4 mst, number of leaves, number of tubers per plant, tuber diameter, and tuber weight, there was no significant effect but an increase in each treatment. The best treatment average in this study was N2 = 20 g/plant. In this case, the dose or level of dolomite treatment should be increased further to achieve maximum production. Keywords: shallots, dolomite fertiliser, NPK fertiliser
Co-Authors Abdul Rauf Abdul Rauf Ade Parlaungan Nasution, Ade Parlaungan Afriani, Astri Alinur, Alinur Arisandi, Nadila Dahrul Aman Harahap Deni Elfiati Fitra Syawal Harahap Fitra Syawal Harahap Fitra Syawal Harahap Fitra Syawal Harahap Fitra Syawal Harahap Harahap Gulo, Ali Momon Hilwa Walida Hilwa Walida Hiya, Nirmadarningsih Ida Zulfida, Ida Iman, Arman Laia, Desmawati Lutfi Henderlan Harahap Mahuli, Jenda Ingan Mulya Rafika Padang, Lulu Aprianti Rahmaniah Rahmaniah . Rahmaniah Rahmaniah Rahmaniah Rahmaniah Rahmaniah, Rahmaniah Refnizuida, Refnizuida Rini Susanti Saragih, Wismaroh Sanniwati Sibuea, Nunti Sinta Diana Siti Aisyah Situmorang, Mananda Tafonao, Oktapianus Waruwu, Derianus Waruwu, Marinus Mintodeus Wizni Fadhillah Yana, Yelfi Zai, Andi Rahhman Zamriyetti, Zamriyetti