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I Gusti Ketut Arya Arthawan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Kajian Kelayakan Finansial Alat Pengusir Burung Tanaman Padi Berbasis Sinar Laser Hyacintha Dinda Septiana Putri; I Wayan Widia; I Gusti Ketut Arya Arthawan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 12 No 2 (2024): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2024.v12.i02.p15

Abstract

Bird s attack of rice plants can cause losses for farmers by reducing rice production. To overcome this problem, a laser light - based rice bird repelle r was developed. This repeller consists of a laser transmitter unit , frame unit , control and remote - control unit , and ener gy generator unit designed into one so that it can function as expected. Technically, this repeller can potentially reduce damage from bird s attack , but more information is needed regarding its financial feasibility. Th is study aimed to assess the economic feasibility of a laser - based rice bird repelle r . The data used in this study include investment costs, fixed costs, operational costs, reduction of losses, reduction of labor, residual value, and depreciation value. The assumptions applied in this study are that the a nnual fixed costs are the same throughout the analysis period, the economic life is five years, and the analysis interest rate is 6% /year. There are four criteria used to assess financial feasibility, namely Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period, and Benefit Cost Ratio (BCR). The results show that the laser - based bird repelle r can be declared financially feasible, as indicated by an NPV value of IDR 10.381.941,88 , an IRR value of 23,91%, a Payback Period of 2,83 years and a BCR of 1 , 21 . Based on the sensitivity analysis results, it shows that this repeller remains financially not fe asible under economic conditions of declining revenue and simultaneous increases in expenses by 10%, 20%, and 30% annually , and it indicates that changes in interest rates have the most significant impact on the NPV value
Analisis RWS dan RIS Pada Budidaya Padi dengan Metode AWD dan Metode Genangan Leonard Tampubolon; I Wayan Tika; I Gusti Ketut Arya Arthawan; Frizt Reynara Abimael Wahongan; Nanda Setya Pradita; Mentari Kinasih
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 14 No 2 (2026): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jbeta.2026.v14.i02.p20

Abstract

Pengelolaan irigasi yang efisien sangat krusial dalam budidaya padi untuk menjaga produktivitas dan keberlanjutan sumber daya air. Penelitian ini bertujuan untuk menganalisis dan membandingkan kinerja tata air pada metode Alternate Wetting and Drying (AWD) dan metode genangan konvensional menggunakan indikator Relative Water Supply (RWS) dan Relative Irrigation Supply (RIS). Penelitian eksperimental ini dilaksanakan di Subak Sigaran. Hasil penelitian menunjukkan bahwa metode AWD secara konsisten lebih efisien dibandingkan metode genangan. Laju perkolasi pada metode AWD (4,82 mm/hari) lebih rendah dibandingkan metode genangan (5,62 mm/hari), yang menunjukkan efisiensi penahanan air yang lebih baik. Nilai RWS pada kedua metode berada di atas 1, namun AWD menunjukkan efisiensi yang lebih unggul dengan nilai yang lebih mendekati batas ideal. Analisis RIS mengungkapkan tingkat pemborosan yang signifikan pada metode genangan (mencapai angka 59,69 pada petakan tertentu), sementara metode AWD berhasil menekan penggunaan air dengan nilai RIS musiman yang jauh lebih rendah (2,46 – 2,62). Uji statistik T-test mengonfirmasi adanya perbedaan yang sangat nyata (P-value 0,00211 < 0,05) pada efisiensi air irigasi antara kedua metode. Disimpulkan bahwa metode AWD mampu menekan penggunaan air irigasi secara drastis melalui fase pengeringan terkontrol tanpa mengganggu kebutuhan fisiologis tanaman.
Co-Authors Dandy Zulfikar Sulthan Siata Frizt Reynara Abimael Wahongan Hyacintha Dinda Septiana Putri I Wayan Tika I Wayan Widia Leonard Tampubolon Mentari Kinasih Nanda Setya Pradita Yohanes Setiyo