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Pengaruh Pemberian Pupuk Organik Cair Jakaba terhadap Pertumbuhan dan Hasil Tanaman Selada (Lactuca sativa L.) Septenius Waruwu; Dian Agung Sanora Laia; Natalia Kristiani Lase; Helmin Parida Zebua
Jurnal Riset Rumpun Ilmu Tanaman Vol. 5 No. 2 (2026): Oktober: JURRIT: Jurnal Riset Rumpun Ilmu Tanaman
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrit.v5i2.10365

Abstract

This study aimed to determine the effect of applying Jakaba liquid organic fertilizer (LOF) on the growth and yield of lettuce (Lactuca sativa L.), as well as to identify the optimal dose of Jakaba LOF. The study was conducted in Ombolata Ulu Village, Gunungsitoli District, Gunungsitoli City, North Sumatra, from April to June 2026, using a non-factorial Randomized Group Design (RGD) consisting of four Jakaba LOF dose levels (P0 = control, P1 = 100 mL/L, P2 = 300 mL/L, P3 = 500 mL/L) and four replicates, resulting in 16 experimental units. The observed parameters included plant height, number of leaves, and leaf area at 7, 14, 21, and 28 days after planting (DAP), as well as fresh plant weight at harvest. Data were analyzed using analysis of variance (ANOVA) at the 95% significance level (α = 0.05), followed by Duncan's Multiple Range Test (DMRT) when significant effects were found. Treatment P3 (500 mL/L) consistently produced the highest mean values for all parameters and differed significantly from the other treatments, with the highest fresh weight of 112.66 g, a significant increase compared to the control (P0) at 49.33 g. It is concluded that Jakaba LOF enhances the growth and yield of lettuce, with a dose of 500 mL/L providing the best response among the levels tested, which can be considered an alternative organic fertilization strategy in lettuce cultivation.
Pengaruh Peningkatan Konsentrasi POC Kulit Bawang Merah dan Air Kelapa terhadap Pertumbuhan dan Hasil Tanaman Sawi Pahit (Brassica juncea var rugosa) Selvian Suarni Gulo; Januari Dawolo; Natalia Kristiani Lase; Dian Agung Sanora Laia
Jurnal Riset Rumpun Ilmu Tanaman Vol. 5 No. 2 (2026): Oktober: JURRIT: Jurnal Riset Rumpun Ilmu Tanaman
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrit.v5i2.10372

Abstract

This study was motivated by the importance of using organic fertilizer as an alternative to enhance the growth and yield of bitter mustard. Red onion skins and coconut water can be utilized as ingredients for making liquid organic fertilizer (LOF), which has the potential to provide nutrients and compounds that support plant growth. The nutrient and plant growth regulator content in the LOF used in this study was not directly analyzed in the laboratory; therefore, the interpretation of the LOF’s potential content is based on relevant literature. This study aims to determine the effect of increasing concentrations of LOF made from red onion skins and coconut water on the growth and yield of bitter mustard plants, as well as to identify the concentration that yields the best results. The study was conducted in Ombolata Ulu, Gunungsitoli City, from April to June 2026. An experimental design using a completely randomized design (CRD) was employed, consisting of four treatments and four replicates. The treatments were as follows: P0 as the control, and P1, P2, and P3 as treatments with increasing concentrations of LOF. The parameters observed included plant height, number of leaves, leaf width, root length, and fresh plant weight. The results of the study showed that increasing the concentration of onion peel LOF and coconut water had a significant effect on the growth and yield of bitter mustard. Thus, treatment P3 was the most effective of the various LOF concentrations tested under the conditions of this study in enhancing the growth and yield of bitter mustard.
Pola Pertumbuhan Akar Timun di Polybag: Implikasinya pada Penyerapan Nutrisi dan Ketahanan Hidup Perti Citra Damarni Waruwu; Della Howu Howu Zendrato; Joy Blesswan Endiyanti Mendrofa; Karisman Putra Gulo; Natalia Kristiani Lase
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 1 (2025): Februari : Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i1.215

Abstract

This study aims to explore the root growth patterns of cucumber (Cucumis sativus L.) cultivated in a polybag system, and examine the implications for nutrient absorption efficiency and plant survival. The method used was a systematic literature review, with narrative analysis of recent studies in the last five years. Data were analyzed to identify the relationship between root architecture, growing medium, and nutrient absorption efficiency. The results showed that the polybag system, with its limited root growing space, promoted adaptation of root growth patterns, including an increase in lateral root density and a reduction in primary root length. Coconut fiber- and vermiculite-based growing media were shown to increase nutrient absorption capacity by up to 30%, while inoculation of rhizosphere microorganisms, such as mycorrhiza, increased phosphorus use efficiency by up to 25%. In addition, optimal root zone temperature plays an important role in supporting root metabolic activities. The conclusion of this study confirms that optimizing root growth patterns through growing media, temperature management, and utilization of microorganisms can significantly increase the productivity of cucumber plants. These findings provide a basis for developing more efficient and sustainable cultivation strategies in modern horticultural systems.
Pengaruh Pupuk Organik pada Pengolahan Lahan di Desa Dahana Iren Forjun Telaumbanua; Priska Rahmat Yanti Zega; Manyupril Lukevin Fatlow Zai; Faristina Laia; Natalia Kristiani Lase
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 1 (2025): Februari : Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i1.216

Abstract

The use of organic fertilizers in agriculture in Dahana Village has significant potential in improving soil fertility and crop productivity. Organic fertilizers, which are derived from natural materials such as agricultural waste and animal manure, serve to improve soil structure, increase water retention capacity, and provide nutrients needed by plants. This study explored different methods of applying organic fertilizers and their impact on plant growth and the quality of agricultural produce. Results show that organic fertilizer not only improves vegetative growth but also yield quality, making it an essential component in sustainable agricultural practices. Thus, this study emphasizes the importance of integrating the use of organic fertilizers in land management strategies to achieve optimal and sustainable agricultural yields in Dahana Village.
Analysis of The Effectiveness of Organic Fertilizer in Improving The Quality And Yield of Cucumber Crops Nisiyari Halawa; Arni Lestari Waruwu; Feberkat Abdi Mosinema Waruwu; Elman kasih Saputra Gulo; Natalia Kristiani Lase
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 1 (2025): Februari : Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i1.217

Abstract

This study examines the effectiveness of organic fertilizers in improving the quality and yield of cucumber (Cucumis sativus L.) plants through a comprehensive literature study. A systematic review was conducted on recent scientific publications that discuss various types of organic fertilizers, including chicken manure, bokashi, organic liquid fertilizer, and eco-enzyme. The research method used a literature study approach by analyzing articles from 2020-2024, focusing on the effectiveness of organic fertilizers in increasing the growth and productivity of cucumber plants.The results showed that organic fertilizers do not merely provide nutrients, but transform as agents of soil ecosystem regeneration. Each type of organic fertilizer has a unique mechanism in influencing plant growth, including increased microbiological activity, optimization of soil structure, and stimulation of the root system. Variations in plant responses depend on genotype, fertilizer composition and environmental conditions. The research resulted in practical recommendations for sustainable organic fertilization strategies, emphasizing the importance of a precision and holistic approach in cucumber crop nutrient management. The findings make a significant contribution in the development of sustainable agriculture.
Peran Teknologi dalam Meningkatkan Efisiensi Pertanian Julvin Saputri Mendrofa; Martirah Warni Zendrato; Nisiyari Halawa; Elias Elwin Zalukhu; Natalia Kristiani Lase
Tumbuhan : Publikasi Ilmu Sosiologi Pertanian Dan Ilmu Kehutanan Vol. 1 No. 3 (2024): September : Tumbuhan : Publikasi Ilmu Sosiologi Pertanian Dan Ilmu Kehutanan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/tumbuhan.v1i3.111

Abstract

Abstracts. This research examines the role of genetic technologies in the conservation of threatened marine species with a focus on the effectiveness of methods and the successful application of advanced techniques. The background of this research is driven by the biodiversity crisis affecting marine species, which requires innovative approaches for protection and recovery. The main objective of the study was to evaluate various genetic methods in improving the conservation of threatened species and determine their success in practice. The methods used included an in-depth literature review of genetic techniques, case studies of field applications, and analysis of results obtained from various sources. Findings suggest that genetic methods, such as CRISPR and DNA barcoding techniques, have significant potential to improve the effectiveness of marine species conservation by providing solutions to specific problems related to threatened species. Implications of this research include recommendations for the application of genetic techniques in conservation programs as well as encouragement for further research to address complex conservation challenges. This research contributes to the development of more effective genetics-based conservation strategies, offering practical guidance for future policies and actions.
Optimalisasi Teknik Pembukaan Lahan dalam Mendukung Keberlanjutan Pertanian di Wilayah Tropis: Studi Kasus Desa Dahana Tabaloho Lilis Sartika Gulo; Nofianti Zebua; Julfan Solala Zebua; Diferman Gulo; Natalia Kristiani Lase
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 2 No. 1 (2025): April : Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v2i1.180

Abstract

This research aims to explore the optimization of land clearing techniques in supporting agricultural sustainability in Dahana Tabaloho Village, Gunungsitoli District, North Sumatra. This research involved students of the University of Nias Agrotechnology Study Program who applied land clearing techniques which included weed removal, soil loosening, drainage and bed making. The methods used in this study were direct observation, interviews, and measurement of soil parameters before and after the application of the techniques. The results showed that the combination of traditional and modern techniques in land management can improve tillage efficiency and environmental sustainability. The use of cultivators for soil loosening is proven to speed up the process, but still requires organic fertilizer to maintain the quality of the soil structure. Good drainage is effective in managing excess water and ensuring water availability during the dry season. In addition, making beds with proper direction supports optimal plant growth. The 15% increase in organic matter content and the stability of soil pH to remain neutral are indicators of the success of the applied techniques. Overall, this study provides evidence that proper land management can support sustainable agricultural productivity in the tropics.
PENGARUH MEDIA PEMBELAJARAN BENCANA ALAM BERBASIS AUGMENTED REALITY TERHADAP HASIL BELAJAR MURID DI UPTD SD NEGERI 075063 TETEHOSI Prima Sari Gulo; Natalia Kristiani Lase; Netti Kariani Mendrofa; Maret Markus Harefa
Jurnal Ilmiah Pendidikan Dasar (JIPDAS) Vol 6 No 4 (2026): Vol. 6 No. 4 September - November 2026
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Fakultas Pendidikan Ilmu Pengetahuan Sosial dan Bahasa Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/jipdas.v6i4.6179

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh media pembelajaran bencana alam berbasis Augmented Reality terhadap hasil belajar murid di UPTD SD Negeri 075063 Tetehosi. Penelitian ini dilatarbelakangi oleh rendahnya hasil belajar murid, dimana dari 31 murid, hanya 14 orang (45,16%) yang nilainya  mencapa KKM 68 pada mata pelajaran IPAS. Kondisi tersebut ditemukan dalam pembelajaran yang masih didominasi buku teks dan gambar statis.  Penelitian ini menggunakan metode kuasi eksperimen (quasi-experimental) dengan desain Nonequivalent Control Group Design. Populasi penelitian berjumlah 31 murid. Sampel penelitian terdiri atas 16 murid kelas eksperimen dan 15 murid kelas kontrol yang menggunakan teknik sampling jenuh. Teknik pengumpulan data menggunakan tes hasil belajar berupa pretest dan posttest sebanyak 20 butir soal. Data dianalisis menggunakan uji instrumen butir soal, dilanjut dengan uji normalitas, uji homogenitas, uji  Independent Sample t-Test  dan perhitungan N-Gain.  Hasil penelitian menunjukkan bahwa rata-rata pretest kelas eksperimen sebesar 49,37 dan rata-rata posttest sebesar 84,37, sedangkan rata-rata pretest kelas kontrol sebesar 47,66 dan rata-rata posttest sebesar 75,33. Nilai N-Gain kelas eksperimen sebesar 0,71 dengan kategori tinggi, sedangkan nilai N-Gain kelas kontrol sebesar 0,55 dengan kategori sedang. Hasil Independent Sample t-Test memperoleh nilai (t) sebesar -2,124 dengan derajat kebebasan sebesar (df) sebesar 29, dan nilai Sig. (2-tailed) sebesar 0,042 < 0,05. Dengan demikian, H₀ ditolak dan H₁ diterima. Hasil tersebut menunjukkan bahwa terdapat pengaruh media pembelajaran bencana alam berbasis Augmented Reality terhadap hasil belajar murid.
PENGEMBANGAN INSTRUMEN PENILAIAN AFEKTIF PADA MATA PEMBELAJARAN IPAS DI SD NEGERI 075027 SILIMA OMO Winner Mastirani Dohona; Natalia Kristiani Lase; Dernius Hura; Noveri Amal Jaya Harefa
EDUCATIONAL : Jurnal Inovasi Pendidikan & Pengajaran Vol. 6 No. 4 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/educational.v6i4.14840

Abstract

Affective assessment is an important component of learning because it provides information about students' attitude development that cannot be fully represented by cognitive assessment results alone. Preliminary observations at SD Negeri 075027 Silima Omo indicated that attitude assessment was still based on general observations and was not supported by a structured instrument with clear operational indicators. This study aimed to develop an affective assessment instrument for third-grade IPAS learning that met validity and practicality criteria and received positive responses from teachers as users. The study employed a Research and Development (R&D) method using the 4D model, consisting of the define, design, develop, and disseminate stages. The participants consisted of three expert validators, namely material, language, and evaluation experts, one third-grade teacher, and 23 third-grade students at SD Negeri 075027 Silima Omo. The developed product consisted of a teacher observation sheet, attitude scale, self-assessment sheet, and peer-assessment sheet covering five affective aspects: curiosity, cooperation, responsibility, honesty, and scientific attitude. The results of the second-stage validation showed average scores of 3.88 from the material expert, 3.78 from the language expert, and 3.90 from the evaluation expert, all of which were categorized as highly feasible. The second-stage practicality test obtained a percentage of 97.5%, while the teacher's response to the use of the instrument also reached 97.5%, both categorized as very good. Therefore, the developed affective assessment instrument met the criteria of validity and practicality and received a positive response from the teacher, making it feasible for use in third-grade IPAS learning within the context of the study. ABSTRAK Penilaian afektif merupakan bagian penting dalam pembelajaran karena memberikan informasi mengenai perkembangan sikap peserta didik yang tidak dapat direpresentasikan melalui hasil penilaian kognitif saja. Hasil observasi awal di SD Negeri 075027 Silima Omo menunjukkan bahwa penilaian sikap masih dilakukan berdasarkan pengamatan umum dan belum didukung instrumen yang terstruktur dengan indikator operasional yang jelas. Penelitian ini bertujuan mengembangkan instrumen penilaian afektif pada mata pelajaran IPAS kelas III yang memenuhi kriteria valid dan praktis serta memperoleh respons positif dari guru sebagai pengguna. Penelitian menggunakan metode Research and Development (R&D) dengan model 4D yang meliputi tahap define, design, develop, dan disseminate. Subjek penelitian terdiri atas tiga validator ahli, yaitu ahli materi, ahli bahasa, dan ahli evaluasi, satu guru kelas III, serta 23 peserta didik kelas III SD Negeri 075027 Silima Omo. Produk yang dikembangkan terdiri atas lembar observasi guru, skala sikap, lembar penilaian diri (self-assessment), dan lembar penilaian antarteman (peer-assessment) yang memuat lima aspek afektif, yaitu rasa ingin tahu, kerja sama, tanggung jawab, kejujuran, dan sikap ilmiah. Hasil validasi tahap II menunjukkan skor rata-rata ahli materi sebesar 3,88, ahli bahasa sebesar 3,78, dan ahli evaluasi sebesar 3,90, yang seluruhnya berada pada kategori sangat layak. Uji kepraktisan tahap II memperoleh persentase 97,5%, sedangkan respons guru terhadap penggunaan instrumen memperoleh persentase 97,5%, keduanya berada pada kategori sangat baik. Dengan demikian, instrumen penilaian afektif yang dikembangkan memenuhi kriteria valid dan praktis serta memperoleh respons positif dari guru dan layak digunakan pada pembelajaran IPAS kelas III sesuai dengan konteks uji coba penelitian.
PENGARUH JENIS MULSA (MULSA SABUT KELAPA DAN PLASTIK) TERHADAP PERTUMBUHAN DAN HASIL PANEN TANAMAN MENTIMUN (Cucumis sativus L.) Yuwan Marthyn Ziliwu; Natalia Kristiani Lase; Desti Kurniawan Gulo; Putra Hidayat Telaumbanua
Jurnal Riset Rumpun Ilmu Tanaman Vol. 5 No. 2 (2026): Oktober: JURRIT: Jurnal Riset Rumpun Ilmu Tanaman
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrit.v5i2.10350

Abstract

Declines in cucumber (Cucumis sativus L.) production and the accumulation of plastic in the soil are major obstacles to achieving productive and sustainable cultivation. This study aims to analyze the effects of different mulch types—coconut fiber mulch (P1), plastic mulch (P2), and no mulch (P0)—on the growth and yield of cucumber plants, as well as to determine which mulch type yields the best results. The study was conducted in Lasara Sowu Village, North Gunungsitoli Subdistrict, Gunungsitoli City, from March to May 2026 using a non-factorial Randomized Group Design (RGD) with three treatments and four replicates. The parameters observed included plant height, number of leaves, number of branches, number of fruits, fruit weight, and fruit length. The results of the study showed that the type of mulch treatment had a significant to highly significant effect on all parameters tested. The coconut husk mulch treatment yielded the highest values and was significantly different compared to the no-mulch and plastic mulch treatments, with an average plant height of 165.16 cm, 38.58 leaves, 3.83 branches, 22.42 fruits, a fruit weight of 4,191.58, and a fruit length of 84.74. In contrast, the treatments without mulch and with plastic mulch generally showed no significant differences. Thus, coconut coir mulch is the most effective type of mulch and is recommended as an alternative to plastic mulch in cucumber cultivation, as it can enhance growth and crop yield while supporting environmentally friendly farming practices.
Co-Authors Antorius Waruwu Areani Zebua Arif Indra Jaya Gea Arlin Elvinyanti Laoli Arni Lestari Waruwu Betzy Victor Telaumbanua Budieli Putra Zalukhu Cahya Masaindah Zendrato Cipta Kasih Zebua Conny Fresh Junardin Syukur Mania Lase Cynthia Florentina Mendrofa Darman Laia Della Howu Howu Zendrato Denius Hulu Dernius Hura Desep Aferius Laoli Desepi Aferius Laoli Desman Telaumbanua Desti Kurniawan Gulo Destini Friska Bestari Waruwu Dian Agung Sanora Laia Diferman Gulo Ekhalis Dedi Kasih Zendrato Elias Elwin Zalukhu Elman Kasih Saputra Gulo Ester Twenty Aprilian Zendrato Faristina Laia Feberkat Abdi Mosinema Waruwu Friska Hastika Gea Gusti Fanolo Bate’e Hardikupatu Gulo Hardikupatu Gulo Harefa, Agnes Renostini Harefa, Noveri Amal Jaya Helmin Parida Zebua Inca Paskahlia Waruwu Indah Wijaya Lase Iren Forjun Telaumbanua Januari Dawolo Jefon Citrawan Halawa Joy Blesswan Endiyanti Mendrofa Joy Blesswan Endriyanti Mendrofa Julfan Solala Zebua Julvin Saputri Mendrofa Juwita Sartika Halawa Karisman Putra Gulo Kasih Iman Gulo Krisdayani Harefa Lase, Berkat Persada Lilis Sartika Gulo Listari Harefa Lukas Lisman Gulo Manyupril Lukevin Fatlow Zai Maret Markus Harefa Marni Putri Gea Marta Tristanti Mendrofa Martha Tyen Lase Martirah Warni Zendrato Masalena Harefa NETTI KARIANI MENDOFA Newyear Krisman Jaya Harefa Niatman Harefa Nince Anjeli Gulo Nince Anjelin Gulo Ningsi Kristiani Mendrofa Nisiyari Halawa Nofianti Zebua Novelina Andriani Zega Okniel Zebua Orderzil Orderzil Patricia Zeni Febriani Waruwu Perti Citra Damarni Waruwu Prima Sari Gulo Priska Rahmat Yanti Zega Putra Hidayat Telaumbanua Putri Novi Kristiani Waruwu Ridho Victory Nazara Romanus Restu Gulo Selvian Suarni Gulo Septenius Waruwu Septin Melindra Gulo Serlin Jessica Mendrofa Silvanus Mendrofa Silvia siska Halawa Sonnia Tentri Yanti Gea Sri Oktafiyanti Lombu Teguh Wa&#039;asaro Zebua Teguh Wa’asaro Zebua Tiesland Zebau Torozidulu Waruwu Veniman Gulo Victoris Julman Waruwu Viktoris Julman Waruwu Waruwu, Toroziduhu Wince Amsyah Natalia Zai Winner Mastirani Dohona Yanalia Telaumbanua Yarman Gulo Yertamina Waruwu Yoel Melsaro Larosa Yuwan Marthyn Ziliwu ZAI, EKA PERIAMAN