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All Journal Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Jurnal Lahan Suboptimal Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Journal of Smart Agriculture and Environmental Technology
Armanto, M Edi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Veterinary

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Journal : Jurnal Lahan Suboptimal

 1 
Land Suitability and Agricultural Technology for Rice Cultivation on Tidal Lowland Reclamation in South Sumatra Momon Sodik Imanudin; Probowati Sulistiyani; M Edi Armanto; A Madjid; Anton Saputra
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 10 No. 1 (2021): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/JLSO.10.1.2021.527

Abstract

Tidal lowland is one of the potential lands for agriculture that is found very widely in coastal areas of South Sumatra. There are about 400,000 hectares (ha) was reclaimed for agriculture purpose. However, in many parts, the rice production is still low (<3 ton/ha), mainly in the high part of hydrotopography class (Type C) that the tidewater could not possibly irrigate the land.  This study aimed to evaluate the level of actual and potential suitability of tidal swamps for rice plants. This research has been carried out in Bandar Jaya Village, Air Sugihan Subdistrict, Ogan Komering Ilir Regency. This research used a survey level method with very detailed (intensive) with a scale of 1:6,000 covering a research area of 16 ha. The results showed that actual suitability for rice plants in the study site is N-n with an area of 5 ha and N-f, n with an area of 11 ha with limiting factors of soil pH and P nutrient. The potential land suitability class for rice plants in the study location is S3-n with an area of 5 ha and S3-f, n with an area of 11 ha. Land quality improvement was done by using the lime application and control water table at a depth of at least 10 cm from the soil surface during rice growth.  Rainwater should be retained in the tertiary block as much as possible to fulfill crop water requirements. Setting the planting time (November-January) and balanced fertilization will be able to increase the land suitability class to S1 (highly suitable).
Using the kriging method to establish a spatially reliable interpolator for peat depth variability Armanto, M Edi; Zuhdi, Mohd; Setiabudidaya, D; Ngudiantoro, Ngudiantoro; Wildayana, Elisa
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 14 No. 1 (2025): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.14.1.2025.708

Abstract

Peatlands (according to the Governmental Regulation nr 71/2014) can be utilized for agriculture and plantation if the peat depths are less than 3 m or more than 3 m, peatlands have to be conserved or restored. Determining peat depths can be conducted in the fields by intensive surveys which were so expensive, inefficient, and ineffective, therefore it was essential to find our simple alternative methods how to measure peat depths easily. The research aimed to establish a spatially reliable interpolator for peat depth variability by utilizing the kriging method. The research was conducted in Seponjen Village, Kumpeh, Muaro Jambi, Jambi Indonesia. Primary data were processed by applying ArcGIS 10.3 software. The interpolated dataset of peat depths validated their actual dataset and performed an excellent relationship (indicated by a positive correlation coefficient, r = 0.920) and a coefficient of determination (R2 = 0.847). It indicated that the interpolated dataset could be utilized to make maps by kriging. The very deep peat (Site A) and the deep peat (Site B) showed a tendency for a strong autocorrelation of the data distribution of peat depths. Autocorrelation tended to be anisotropic towards the river on the shallow peat (Site C). A good interpolator of peat depth variability can be generated using the kriging method.
Co-Authors A Madjid Abdul Madjid Anton Saputra Dedi Setiabudidaya DESSY ADRIANI Elisa Wildayana Heri Junedi Imanudin, M.S. Junedi, H. Maryadi Miftahul Momon Sodik Imanuddin Momon Sodik Imanudin Nearti, Yuwinti Ngudiantoro . Probowati Sulistiyani R.H. Susanto Setiabudidaya, D Siti Masreah Bernas Zuhdi, Mohd Zuhdi, Mohd.