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Magnesium Fertilizer Increased Growth, Rhizome Yield, and Essential Oil Content of Ginger (Zingiber officinale) in Organic Field Sardiana, I Ketut; Kusmiyarti, Tati Budi; Roni, Ni Gusti Ketut
PLANTA TROPIKA Vol 10, No 2 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i2.11406

Ginger (Zingiber officinale) is the main biopharmaceutical export commodity of Indonesia. However, its productivity and quality are low because it is not cultivated using optimal techniques. This study aimed to examine the effect of magnesium (Mg) fertilizer on the growth, rhizome yield, and essential oil content of two ginger varieties in the organic field. The two factors tested were the rate of Mg fertilizer application (0, 50, 100, and 150 kg MgOha-1) and the variety of ginger (elephant ginger [Zingiber officinale var. officinarum] and red ginger [Zingiber officinale var. rubrum]). The variables measured were plant height, number of leaves, number of tillers, rhizome weight, and essential oil content. Mg fertilizer application rate and ginger variety significantly affected growth, yield, and essential oil content. No interaction effects were found between the two factors. Mg fertilizer applied at 150 kg MgOha-1 resulted in the highest rhizome yield and essential oil content, with an increase of 21.74% and 15.38%, respectively, compared to the control (0 kg MgOha-1). The yield of elephant ginger was 29.41% higher than that of red ginger, whereas the essential oil content of the red ginger was 16.67% higher than that of the elephant ginger.

Magnesium Fertilizer Increased Growth, Rhizome Yield, and Essential Oil Content of Ginger (Zingiber officinale) in Organic Field Sardiana, I Ketut; Kusmiyarti, Tati Budi; Roni, Ni Gusti Ketut
PLANTA TROPIKA Vol. 10 No. 2 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i2.11406

Ginger (Zingiber officinale) is the main biopharmaceutical export commodity of Indonesia. However, its productivity and quality are low because it is not cultivated using optimal techniques. This study aimed to examine the effect of magnesium (Mg) fertilizer on the growth, rhizome yield, and essential oil content of two ginger varieties in the organic field. The two factors tested were the rate of Mg fertilizer application (0, 50, 100, and 150 kg MgOha-1) and the variety of ginger (elephant ginger [Zingiber officinale var. officinarum] and red ginger [Zingiber officinale var. rubrum]). The variables measured were plant height, number of leaves, number of tillers, rhizome weight, and essential oil content. Mg fertilizer application rate and ginger variety significantly affected growth, yield, and essential oil content. No interaction effects were found between the two factors. Mg fertilizer applied at 150 kg MgOha-1 resulted in the highest rhizome yield and essential oil content, with an increase of 21.74% and 15.38%, respectively, compared to the control (0 kg MgOha-1). The yield of elephant ginger was 29.41% higher than that of red ginger, whereas the essential oil content of the red ginger was 16.67% higher than that of the elephant ginger.

Inovasi Pengendalian Rayap Kayu Kering (Cryptotermes spp.): Pengujian Multiaspek Biopestisida Nabati Berbasis Ecoenzyme Terhadap Mortalitas, Repelensi, dan Perlindungan Substrat Triwahyuningsih, Nike; Shafira, Amrina Yasmine; Kusmiyarti, Tati Budi; Maulana, Alief Yahya
Agroteknika Vol 8 No 3 (2025): September 2025
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v8i3.583

Rayap kayu kering (Cryptotermes spp.) merupakan hama perusak kayu yang menyebabkan kerugian ekonomi signifikan, dan penggunaan pestisida kimia konvensional menimbulkan masalah lingkungan dan kesehatan. Inovasi penggunaan biopestisida perlu dilakukan untuk meningkatkan efikasi dan stabilitasnya. Sebuah penelitian dilakukan untuk mengevaluasi pengaruh pemberian biopestisida berbasis ecoenzyme terhadap mortalitas, repelensi, dan daya cegah serangan rayap kayu kering. Biopestisida-ecoenzyme dibuat dengan cara memfermentasi 7 bahan nabati sebanyak 12,5% di dalam ecoenzyme selama 30 hari. Pada uji aplikasi biopestisida dan penentuan LC50, percobaan disusun menurut rancangan acak lengkap dua faktor dengan tiga ulangan. Faktor pertama adalah cara pemberian (uji mortalitas, uji repelensi, dan uji proteksi) dan faktor kedua adalah dosis biopestisida (0, 10, 20, 30, 50, dan 75%). Hasil penelitian menunjukkan bahwa biopestisida-ecoenzyme secara signifikan efektif dalam mengendalikan populasi rayap kayu kering melalui tiga mekanisme utama, yaitu: 1) bio-pestisida mampu menyebabkan kematian pada rayap kayu kering dengan nilai LC50 5,90%; 2) biopestisida mampu mengusir rayap kayu kering dengan nilai LC50 35,77%; 3) biopestisida mampu mencegah serangan rayap kayu kering dengan nilai LC50 56,97%. Dengan demikian biopestisida berbasis ecoenzyme memiliki potensi besar sebagai agen pengendali hama rayap kayu kering yang efektif. Pada uji frekuensi pemberian biopestisida, percobaan disusun menurut rancangan acak lengkap dua faktor dengan tiga ulangan. Faktor pertama adalah dosis biopestisida (0, 6, 36, dan 57%) dan faktor kedua adalah frekuensi pemberian (1, 2, dan 3 minggu sekali). Hasil pengujian frekuensi pemberian biopestisida menunjukkan mortalitas rayap sangat tinggi (lebih dari 80%) dengan aplikasi hanya setiap 3 minggu sekali menggunakan konsentrasi 6%.

Strategic Development of Community-Based Tourism Entrepreneurship in Volcanic Ecotourism Destinations Triwahyuningsih, Nike; Kusmiyarti, Tati Budi; Noviastuti, Nina
Pinisi Journal of Entrepreneurship Review Vol. 4 No. 1 (2026): Pinisi Journal of Entrepreneurship Review
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62794/pjer.v4i2.219

This study aims to formulate strategic directions for the development of community-based tourism entrepreneurship in a volcanic ecotourism destination by examining its internal and external conditions. The analysis employed the Internal Factors Analysis Summary, External Factors Analysis Summary, and SWOT framework to identify the main strategic priorities for sustainable destination development. Secondary data derived from visitor perceptions and management assessments were used to evaluate the destination’s strengths, weaknesses, opportunities, and threats. The findings indicate that internal strengths, particularly the attractiveness of the volcanic landscape and strong community participation, slightly outweigh existing limitations such as inadequate amenities and limited accommodation capacity. The external environment is also relatively favorable, supported by increasing demand for nature-based tourism and educational tourism activities, although challenges remain in the form of volcanic hazards and potential environmental degradation. The integration of IFAS, EFAS, and SWOT results highlights several strategic priorities, including geotourism development, community-based homestay expansion, hazard mitigation systems, and infrastructure improvement. This study contributes a context-sensitive strategic framework that integrates conservation, disaster risk awareness, and local entrepreneurship within community-based tourism development. The findings provide practical implications for policymakers, destination managers, and local communities in promoting sustainable ecotourism development in environmentally sensitive tourism areas.

Magnesium Fertilizer Increased Growth, Rhizome Yield, and Essential Oil Content of Ginger (Zingiber officinale) in Organic Field I Ketut Sardiana; Tati Budi Kusmiyarti; Ni Gusti Ketut Roni
PLANTA TROPIKA Vol. 10 No. 2 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i2.11406

Ginger (Zingiber officinale) is the main biopharmaceutical export commodity of Indonesia. However, its productivity and quality are low because it is not cultivated using optimal techniques. This study aimed to examine the effect of magnesium (Mg) fertilizer on the growth, rhizome yield, and essential oil content of two ginger varieties in the organic field. The two factors tested were the rate of Mg fertilizer application (0, 50, 100, and 150 kg MgOha-1) and the variety of ginger (elephant ginger [Zingiber officinale var. officinarum] and red ginger [Zingiber officinale var. rubrum]). The variables measured were plant height, number of leaves, number of tillers, rhizome weight, and essential oil content. Mg fertilizer application rate and ginger variety significantly affected growth, yield, and essential oil content. No interaction effects were found between the two factors. Mg fertilizer applied at 150 kg MgOha-1 resulted in the highest rhizome yield and essential oil content, with an increase of 21.74% and 15.38%, respectively, compared to the control (0 kg MgOha-1). The yield of elephant ginger was 29.41% higher than that of red ginger, whereas the essential oil content of the red ginger was 16.67% higher than that of the elephant ginger.

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