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All Journal Jurnal Konsepsi Journal of Agriculture (JoA)
Putri, Nazwa Dwi
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Agriculture, Biological Sciences & Forestry Education Languange, Linguistic, Communication & Media Other

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Pengembangan Modul Pembelajaran Berbasis Self Directed Learning Tema Sumber Energi di Madrasah Ibtidaiyah Putri, Nazwa Dwi; Rosdiana, Rosdiana; Aswar, Nurul
Jurnal Konsepsi Vol. 13 No. 1 (2024): Jurnal Konsepsi (Mei)
Publisher : P3I Luwu Raya

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Abstract

Penelitian ini membahas pengembangan modul pembelajaran berbasis Self Directed Learning untuk siswa kelas III di Madrasah Ibtidaiyah (MI) 26 Batusitanduk. Tujuan penelitian adalah untuk menganalisis kebutuhan modul, mengembangkan modul, menilai validitas, dan menguji kepraktisan modul pembelajaran tersebut. Metode yang digunakan dalam penelitian ini adalah Research and Development (R&D) dengan model pengembangan ADDIE, yang mencakup lima tahap, yaitu analisis, desain, pengembangan, implementasi, dan evaluasi. Instrumen penelitian meliputi wawancara dengan guru dan angket kepada siswa. Modul pembelajaran yang dikembangkan divalidasi oleh tiga validator: ahli desain, ahli bahasa, dan ahli materi. Analisis data menggunakan metode kualitatif dan kuantitatif. Hasil analisis kebutuhan menunjukkan bahwa siswa kelas III MI 26 Batusitanduk memerlukan modul pembelajaran berbasis Self Directed Learning. Modul yang dikembangkan berhasil divalidasi dengan hasil penilaian: ahli materi 87,5%, ahli bahasa 84,3%, dan ahli desain 92,5%. Secara keseluruhan, modul ini memperoleh nilai validitas sebesar 84,61%, yang dikategorikan sangat valid. Selain itu, angket kepraktisan yang diberikan kepada siswa menunjukkan nilai 92,85%, yang dikategorikan sangat praktis. Dengan demikian, modul pembelajaran berbasis Self Directed Learning ini sangat praktis digunakan dan dapat meningkatkan pemahaman siswa dalam belajar secara mandiri.
Organic Fertilizer Efficiency for Food Security Support in Secanggang, Langkat Hakim, Mukti; Wahyuni, Henny; Putri, Nazwa Dwi; Noviana, Monica
Journal of Agriculture Vol. 4 No. 02 (2025): Research Articles July 2025
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v4i02.6396

Abstract

The heavy reliance of Indonesian rice farmers on inorganic fertilizers has led to land degradation and declining productivity, necessitating a shift toward more sustainable approaches. This study analyses the technical efficiency of organic fertilizer use in rice farming in Secanggang Subdistrict, Langkat Regency, employing an input-oriented Data Envelopment Analysis (DEA) model on a sample of 45 farmers. Input variables include land area (0.2–1.2 ha), organic fertilizer quantity (200–500 kg/ha), labor (15–30 person-days/season), and production costs (IDR 3–5 million/season), while outputs consist of productivity (4–6 tons/ha) and income (IDR 8–12 million/season). The DEA results indicate an average technical efficiency of 78% under the Constant Returns to Scale (CRS) model and 85% under the Variable Returns to Scale (VRS) model, with 22% of farmers achieving optimal efficiency levels (>90%). Further analysis reveals that farmers cultivating more than 0.5 hectares attained 12% higher efficiency compared to those with smaller plots (p < 0.05), and farming experience of over 10 years contributed to an 8% efficiency increase (p < 0.1). Economically, organic fertilizer use reduced production costs by 15–20% through the substitution of chemical inputs and increased average seasonal income by approximately IDR 1.2 million. The key findings of this study are: (1) there is a 22% potential gain in efficiency through input optimization; (2) managerial factors (experience, education) have a greater influence on efficiency than technical factors; and (3) an organic fertilizer dosage of 300–400 kg/ha yielded the most efficient outcomes.
Co-Authors Aswar, Nurul Hakim, Mukti Henny Wahyuni Noviana, Monica Rosdiana Rosdiana