Main Article Content
Abstract
Soil moisture prediction models on a regional scale can be developed by looking for the relationship between water balance and basic soil properties such as texture and organic matter. Our previous research has obtained soil dielectric properties measurement technology as an estimator of soil moisture that can be done quickly in the field. The purpose of this study was to apply this technology in estimating the characteristics of soil moisture insitu in the field on a district scale in Bengkulu Province. The research was conducted for three years in three different districts in Bengkulu Province. The results of the third year to early October 2021 study showed that land under thicket stands and oil palm had higher weekly groundwater fluctuations than under rubber. The highest impedace of groundwater below the thickets and palms are present at depths of 0-20 cm and 0-10 cm, respectively. However thickets have fluctuations in the depth of total groundwater (0-30 cm depth) that are higher than those of oil palms during three months of measurement. In contrast, the soil moisture content profile under the rubber stand is relatively more stable against the influence of weekly rainfall during the measurement. An analysis of the relationship between non-free variables (field capacity moisture content, permanent wilting point and water available) and free variables (sand, dust, clay and C-organic) will be carried out in November 2021
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References
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- Fitriani, N., Hermawan, B., Putri, E.L. & Hasanudin, H. (2022). Irrigation water supply patterns in several land uses with automated application of soil moisture monitoring based on Dielectric Technology. TERRA : Journal of Land Restoration, 5(1), 21–26. DOI: https://doi.org/10.31186/terra.5.1.21-26 .
- Hermawan, B., Agustian, I., Suhartoyo, H. & Sukisno. (2016) Rancang Bangun Handheld Soil Moisture Meter untuk Mengukur Kadar Air Tanah Secara Insitu. Laporan Penelitian Unggulan Perguruan Tinggi (PUPT). Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Bengkulu (tidak dipublikasikan).
- Hermawan, B., Supardjo, E., Hindarto, K.S., Silalahi, R. & Barchia, M.F. (2017) A quick dielectric method to determine insitu soil water content for precision water use under sustainable agricultural practices. International Journal on Advanced Science, Engineering and Information Technology, 7(3), 910–915. DOI: 10.18517/ijaseit.7.3.1667.
- Hermawan, B., Suhartoyo, H., Sulistyo, B., Murcitro, B.G. & Herman, W. (2020). Diversity of soil organic carbon and water characteristics under different vegetation types in Northern Bengkulu, Indonesia, Biodiversitas, 21(5), 1793–1799. DOI: 10.13057/biodiv/d210504.
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- Kargas, G., Ntoulas, N. & Nektarios, P. (2017). Soil moisture determination using the dielectric sensor TDR300 in porous media with increased salinity (January 2018). DOI: 10.17660/ActaHortic.2017.1189.51.
- Jitkokkruad, K., Jarukumjorn, K., Raksakulpiwat, C., Chaiwong, S., Rattanakaran, J. & Trongsatitkul, T. (2023). Effects of bamboo leaf fiber content on cushion performance and biodegradability of natural rubber latex. Polymers, 15(3),654. DOI: 10.3390/polym15030654 .
- Klik, A., Haas, K., Dvorackova, A. & Fuller, I.C. (2015). Spatial and temporal distribution of rainfall erosivity in New Zealand. Soil Research, 53(7), 815–825. DOI: 10.1071/SR14363.
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- Nasution, C. P. I., Harahap, F. S. & Sitanggang, K. D. (2023) Improvement of soil chemical properties in oil palm plantations at Supra Matra Abadi Aek Nabara Estate with the application of empty oil palm bunches. JUATIKA, Jurnal Agronomi Tanaman Tropika, 5(1), 37-44. DOI: https://doi.org/10.36378/juatika.v5i1. 2723.
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References
Akbar, I., & Najah, S. (2022). Literature Review: Potensi dan Pengelolaan Sumberdaya Hutan, Jurnal Sains Edukatika Indonesia (JSEI), 4(2), 38-43. https://jurnal.uns.ac.id/jsei/article/view/70943/39327.
Awotoye, O. & Dada, A.C. (2011) Impact of palm oil processing effluent discharge on the quality of receiving soil and river in South Western Nigeria impact of palm oil processing effluent discharge on the quality of receiving soil and river in South Western Nigeria. Journal of Applied Sciences Research, 7(2), 111-118. https://www.researchgate.net/publication/ 230764102_Impact_of_Palm_Oil_Processing_Effluent_Discharge_on_ the_ Quality_of_ Receiving_Soil_and_River_in_South_Western_Nigeria.
Fitriani, N., Hermawan, B., Putri, E.L. & Hasanudin, H. (2022). Irrigation water supply patterns in several land uses with automated application of soil moisture monitoring based on Dielectric Technology. TERRA : Journal of Land Restoration, 5(1), 21–26. DOI: https://doi.org/10.31186/terra.5.1.21-26 .
Hermawan, B., Agustian, I., Suhartoyo, H. & Sukisno. (2016) Rancang Bangun Handheld Soil Moisture Meter untuk Mengukur Kadar Air Tanah Secara Insitu. Laporan Penelitian Unggulan Perguruan Tinggi (PUPT). Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Bengkulu (tidak dipublikasikan).
Hermawan, B., Supardjo, E., Hindarto, K.S., Silalahi, R. & Barchia, M.F. (2017) A quick dielectric method to determine insitu soil water content for precision water use under sustainable agricultural practices. International Journal on Advanced Science, Engineering and Information Technology, 7(3), 910–915. DOI: 10.18517/ijaseit.7.3.1667.
Hermawan, B., Suhartoyo, H., Sulistyo, B., Murcitro, B.G. & Herman, W. (2020). Diversity of soil organic carbon and water characteristics under different vegetation types in Northern Bengkulu, Indonesia, Biodiversitas, 21(5), 1793–1799. DOI: 10.13057/biodiv/d210504.
Husaini, A., Fahrezi, D.D., Arbavella, M.A.& Sadewa, N.P. (2023). Analisis Ekspor Komoditi Karet di Indonesia terhadap Perdagangan Internasional 2016-2020, 2. DOI:10.55681/economina.v2i2.320.
Irwansyah, E., Santoso, A.A., Gunawan & Dzikri, I. (2023). Inteligent systems and applications in engineering estimating oil palm tree yield and soil composition using multi-scale CNN and vegetation indices. International Journal of Intelligent Systems and Aplications in Engineering, 11(1), 183–189.
Kargas, G., Ntoulas, N. & Nektarios, P. (2017). Soil moisture determination using the dielectric sensor TDR300 in porous media with increased salinity (January 2018). DOI: 10.17660/ActaHortic.2017.1189.51.
Jitkokkruad, K., Jarukumjorn, K., Raksakulpiwat, C., Chaiwong, S., Rattanakaran, J. & Trongsatitkul, T. (2023). Effects of bamboo leaf fiber content on cushion performance and biodegradability of natural rubber latex. Polymers, 15(3),654. DOI: 10.3390/polym15030654 .
Klik, A., Haas, K., Dvorackova, A. & Fuller, I.C. (2015). Spatial and temporal distribution of rainfall erosivity in New Zealand. Soil Research, 53(7), 815–825. DOI: 10.1071/SR14363.
Mangoensoekarjo, S. & Tojib, A. T. 2005. Manajemen Budidaya Kelapa Sawit. In Mangoensoekarjo, S. & Semangun, H. Manajemen Agrobinis Kelapa Sawit. Gadjah Mada University Press., Yogyakarta.
Nasution, C. P. I., Harahap, F. S. & Sitanggang, K. D. (2023) Improvement of soil chemical properties in oil palm plantations at Supra Matra Abadi Aek Nabara Estate with the application of empty oil palm bunches. JUATIKA, Jurnal Agronomi Tanaman Tropika, 5(1), 37-44. DOI: https://doi.org/10.36378/juatika.v5i1. 2723.
Xu, Y., Zhang, G. & Liu, W. (2023) Flexible multiterminal photoelectronic neurotransistors based on self ‐ assembled rubber semiconductors for spatiotemporal information processing. DOI: 10.1002/smm2.1162.