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All Journal Jurnal Teknik Industri Jurnal Edukasi Elektro Journal of Tropical Soils Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL EKONOMI PENDIDIKAN DAN KEWIRAUSAHAAN Asian Journal of Agriculture Journal of Vocational Education Studies Abdimas Galuh : Jurnal Pengabdian Kepada Masyarakat Jurnal Wana Tropika Journal of Vocational and Technical Education (JVTE) Jurnal Wana Tropika
Putu Sudira
Fakultas Teknologi Pertanian Universitas Gadjah Mada, Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Physics Social Sciences Other

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Effect of Poultry Manure and Vertisols Matter on Availability and Leaching of Macronutrients in Coastal Sandy Soil Purwantono, Anung Slamet Dwi; Indradewa, Didik; Sudira, Putu; Kertonegoro, Bambang Djadmo
JOURNAL OF TROPICAL SOILS Vol. 16 No. 1: January 2011
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2011.v16i1.17-24

Abstract

The poultry manure and vertisols matter have potency for reclaiming a soil. The research objectives was to study the effect of poultry manure (PM) and vertisols matter (VM) on availability and leaching of macro nutrient in coastal sandy soil treated by rainfall simulation. A laboratory experiment was conducted with lesymeters to measure nutrient leaching. The factorial 4 × 4 treatment applied was arranged by randomized completely block design with three replications. The first factor was level of PM consisted of 0, 20, 40, and 60 Mg ha-1. The second one wasthe level of VM consisted of 0, 5, 10, and 15%. Variables observed were soil physical and chemical properties such as bulk density (BD), particle density (PD), porosity, pF 2.54, pF 4.2, available water capacity (AWC), permeability, cation exchange capacity (CEC), available macro nutrients (N, P, K, Ca, Mg, and S) by Morgan Wolf extraction, and the rate of macro nutrient leaching measuared by Spectrophotometry and Atomic Absorption Spectrophotometry. Result of the research showed that application of PM and VM in the sandy soil decreased soil PD and BD, increased soil porosity and AWC, decreased soil permeability, and slightly increased soil CEC. Application of PM and VM increased soil available nutrient in the sandy soil. Up to 60 Mg ha-1 dose PM increased soil available nutrient, while 10 to 15% dose, VM did not increased it. The rank of nutrient leaching from high to low by rain simulation was N-NO3 -> SO4 = > K+ > Ca2+. Leaching of K and N-NH4+ could be reduced by soil amendment. Combination of PM 60 Mg ha-1 and VM 10% was the best soil amendment for increasing nutrient availability and decreasing nutrient leaching in the sandy soil.Keywords: available nutrient, coastal sandy soil, leaching, poultry manure, vertisols matter
Needs Analysis and Design of Digital Electronics AR with the PjBL Model Hartati; Sudira, Putu; setiawan, Dedi
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.9756

Abstract

The rapid advancement of educational technology, particularly in vocational education, has opened new opportunities to address learning challenges in complex technical subjects. This study aims to analyze the needs and design Augmented Reality (AR)-based learning media for the Digital Electronics subject using the Project-Based Learning (PjBL) model. The AR media is designed to assist students in understanding abstract and complex concepts in Digital Electronics, such as logic circuits and digital systems, in an interactive and visual manner. The research method employed is Research and Development (R&D) following the ADDIE development model, which includes the stages of analysis, design, development, implementation, and evaluation. Needs analysis results indicate that students face difficulties in understanding digital electronics concepts without additional visualization. Furthermore, both teachers and students expressed high interest in using AR technology to support a more effective and engaging learning process. PjBL-based AR media is expected to enhance students’ conceptual understanding and practical skills in Digital Electronics, as well as provide a deeper learning experience through applicative projects. By demonstrating this synergy between AR and PjBL, the study establishes a foundation for integrating immersive technologies into science and technology education, thereby enriching conceptual understanding while cultivating critical thinking, creativity, and other essential 21st-century competencies.
CHINESE FAMILY EDUCATIONAL PATTERNS IN CULTIVATING ENTREPRENEURIAL SPIRIT: A THEMATIC ANALYSIS IN SURAKARTA Abdurrahman, Afif; Sudira, Putu; Hidayati, Tuti; Rizki, Darlin; Dewi, Ayuana Kartika
JURNAL EKONOMI PENDIDIKAN DAN KEWIRAUSAHAAN Vol. 13 No. 2 (2025)
Publisher : UNIVERSITAS NEGERI SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jepk.v13n2.p385-404

Abstract

The entrepreneurial spirit within Chinese-Indonesian families has long been recognized as a factor in their economic resilience, yet the educational patterns that transmit this spirit across generations remain underexplored. This study aims to examine how family-based education fosters entrepreneurial character among Chinese youth in Surakarta, focusing on the interplay of cultural values, practical immersion, and adaptive strategies. The central research question asks: How do educational practices within Chinese-Indonesian families contribute to cultivating entrepreneurial spirit in the next generation? This research employs a qualitative approach using thematic analysis to interpret data gathered through in-depth interviews, observations, and documentation. The findings reveal three major themes: first, practical immersion as pedagogy, where children are engaged in family business tasks from an early age to internalize perseverance, discipline, and interpersonal competence; second, familial trust and solidarity as social capital, where kinship bonds and moral values of honesty, responsibility, and integrity sustain intergenerational continuity; and third, the negotiation of formal education, experiential learning, and technology, where families balance schooling with hands-on practice and cautiously integrate digital tools as both opportunities and risks. The study concludes that entrepreneurial education in Chinese-Indonesian families is not merely an economic strategy, but a cultural and ethical practice embedded in family life. Theoretically, this study shows that entrepreneurial spirit is socially enacted within kinship structures rather than taught solely in schools. Practically, the findings suggest that entrepreneurship programs can be strengthened through family-based approaches that emphasize early immersion, trust, ethics, and guided use of technology.
Co-Authors Aanggraini, Yussi Abdurrahman, Afif Agung B. Supangat Anggraini, Yussi Azwar Maas Bambang Djadmo Kertonegoro Bayu Rinawan, Rangga Benito Heru Purwanto Budiadi Dedi Setiawan Dewi, Ayuana Kartika Didik Indradewa Ernawati, Enik Erny Poedjirahajoe HARTATI Haryono Supriyo Hidayati, Tuti I WAYAN WINDIA Irfan Luthfi, Muhammad Jaya, Daniel Jesayanto Kumalajati, Erlynda Lilik Sutiarso Mochamad Bruri Triyono MULYONO, NITISAPTO Nikodemus P.P.E. Nainiti, Nikodemus P.P.E. Nining Wahyuningrum Nurdiansyah, Ferizal Nuryadin Eko Raharjo Nuryake Fajaryati Pipit Utami Purwantono, Anung Slamet Dwi Rinawan, Rangga Bayu Sabarnudin, Sambas Sahid Susanto Sumiyati, S