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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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The Role of Subsidized Fertilizers on Rice Production and Income of Farmers in Various Land Typologies Wildayana, Elisa; Armanto, M Edi
Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Vol 20, No 1 (2019): JEP 2019 (In Progress Issue)
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jep.v20i1.7081

Abstract

The research aimed to analyze the role of subsidized fertilizers on rice production and income of farmers in various land typologies. The sampling used is cluster method and followed with an experimental research by using Split Plot Design. The compound fertilizer costs are one-half times higher than single fertilizer, but the rice yield difference is enhanced by the provision of fertilizer reaching more than two-times higher compared to a single fertilizer. The rice yields can be increased more than three-times higher, but the income of farmers can be increased only about one and half times. The Government needs to make a policy of the lowest rice price, then income of farmers can be automatically increased and at the same time the welfare of famer’s families will be also increased.
Kajian Faktor Pembatas dan Rekomendasi Perbaikan Lahan untuk Budidaya Jagung di Lahan Rawa Pasang Surut Tipologi C: Study of Limiting Factors and Land Rehabilitation Recommendations for Corn Cultivation in Tidal Swamp Land of Tipology C Momon Sodik Imanudin; Abdul Madjid; Edi Armanto; Miftahul
Jurnal Ilmu Tanah dan Lingkungan Vol 22 No 2 (2020): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.22.2.46-55

Abstract

Penelitian bertujuan untuk mengkaji beberapa faktor pembatas lingkungan lahan yang selanjutnya disusun rekomendasi perbaikan, agar tanaman bisa tumbuh sesuai standar produksi. Metode penelitian adalah survai lapangan, monitoring dan pengkajian. Hasil penelitian menunjukan faktor pembatas utama sangat tergantung kepada tingkat kedalaman lapisan firit, dan fluktuasi muka air tanah harian. Selama petani bisa mengendalikan muka air tanah mendekati zona akar maka fakor pembatas lainnya bisa diperbaiki. Beberapa faktor pembatas yang bisa diperbaiki adalah pH tanah masam, hara makro rendah (nitrogen,phospor dan kalium), dan ketersediaan air karena sistem tata air yang buruk. Kajian budidaya tanaman pada kondisi iklim normal ( basah) diama curah hujan dengan bulan kering hanya 2-3 bulan tidak ditemukan pembatas utama yang permanen. Perbaikan tata air dan kesuburan tanah telah mampu menciptakan produksi optimal tanaman jagung 7 ton/ha. Namun pada kondisi iklim kering dimana masa kemarau selama 4-5 bulan maka akan muncuk faktor pembatas utama permanen yang disebabkan oleh oksidasi lapiran firit. Hal ini terjadi karena muka air tanah turun tajam >90 cm. Pada kondisi ini produksi jagung menurun lebih dari 50% area tanam gagal panen karena kekeringan, dan keracunan. Petani yang berhasil adalah yang melakukan penanaman lebih awal yaitu bulan Mei. Sementara yang tanam Juli semua gagal panen. Selain karena curah hujan yang kering juga karena petani tidak melakukan konservasi air. Pintu air tidak dioperasikan untuk menahan air di saluran tersier sehingga kehilangan air lebih cepat. Dampaknya air tanah pada bulan September turun dibawah 90 cm dan terjadilah oksidasi firit. Oleh karea itu operasi pintu sebaiknya dibuka pada saat pasang dan ditutup pada saat surut operasi ini berlansung sampai belum masuk air asin (Agustus). Dan memasuki bulan September dimana telah terjadi intrusi air asin, maka pintu air ditutup permanen. Dari kondisi diatas maka pada kondisi kemarau lebih dari 4 bulan, rekomendasi utama adalah percepatan waktu tanam, pemberian bahan pembenah tanah dan operasi pintu air dengan sistem fullretention.
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).
Mapping and Analyzing Spatial Variability of Peat Depths by Using Geostatistics Armanto, M Edi; Setiabudidaya, Dedi; Ngudiantoro; Wildayana, Elisa; Zuhdi, Mohd
Journal of Smart Agriculture and Environmental Technology Vol. 2 No. 3 (2024): December 2024, Published, 2024-12-07
Publisher : Indonesian Soil Science Society of South Sumatra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2024.2.3.100-106

Abstract

Determining peat depths can be done by intensive surveys which are expensive, inefficient, and ineffective, therefore, it is essential to find simple alternative methods for measuring peat depths. The research objective was to estimate and make maps of peat depths by applying Geostatistics analysis. This research was conducted on Muaro Jambi District, Jambi (Seponjen Village, Kumpeh) peatlands. The primary data was analyzed by ArcGIS 10.3 and Geostatistics programs. The spatial variability of peat depths on Site A (peat depth of 8.10–15.00 m) and Site B (3.10–8.00 m) showed maximum values at 271 and 242 m distances, respectively. On-Site C (0.00–3.00 m), maximum variability was found at the distance of 63 m. Peat depths variability may be interpolated at a maximum of 271 m (for Site A) and 242 m (for Site B). More than the above distances, peat depths cannot be interpolated. Site A must be conserved because of peat depths of > 3 m, only Site C can be cultivated for agriculture and plantations. Unfortunately, all areas have been cultivated for the oil palm plantation because the government has granted concession permits to plantations before knowing how deep the permissible peatlands are for the whole area.
Bridging the Gap between Land Suitability and Local Wisdom Species in South Sumatra Peatlands, Indonesia Armanto, M Edi; Wildayana, Elisa
Journal of Smart Agriculture and Environmental Technology Vol. 3 No. 1 (2025): April 2025, Published 2025-04-07
Publisher : Indonesian Soil Science Society of South Sumatra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2025.3.1.8-17

Abstract

The primary issue with peatlands until now was people’s ignorance about land suitability. Changes in patterns and details of the distribution of peatland use based on Local Wisdom Species (LWS) are increasingly  unclear. We don’t know the suitable locations of cultivated LWS, so peatland productivity is declining and degradation continues. This research aims to evaluate land suitability for LWS in South Sumatra peatlands, Indonesia. Local Wisdom Species and soil samples were taken based on the type of peat land uses, and then laboratory work was carried out. Local Wisdom Species showing direct benefit are divided into two groups, namely LWS producing quickly are usually Purun Tikus (Eleocharis dulcis), water spinach (kangkung), bitter melon (paré), floating rice, and auction system for fishing, and LWS recognizing commercially are usually coconut, honeybees, gelam, sago, and jelutong. The level of land suitability of these two groups is S1 (highly suitable); and S2 (moderately suitable) with the only limiting factors being nutrient availability and nutrient retention (except coconut). By using science and technology, such as liming, fertilizing, improving water systems, and avoiding burning, all of these limiting factors can be overcome. Based on local knowledge, four strategies are suggested for sustainable peatland restoration, namely decentralized; conservative; protective; and optimal strategies.
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.
Optimizing Replanting Strategies for Oil Palm Plasma: Financial Patterns and Farmer Concerns in South Sumatra, Indonesia Wildayana, Elisa; Armanto, M Edi; Maryadi; Adriani, Dessy; Nearti, Yuwinti
Journal of Smart Agriculture and Environmental Technology Vol. 3 No. 2 (2025): August 2025, Published 2025-08-19
Publisher : Indonesian Soil Science Society of South Sumatra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2025.3.2.72-79

Abstract

This study examines the financial feasibility of different replanting patterns for oil palm plasma and assesses farmers’ concerns regarding replanting decisions. The research was conducted in three districts of South Sumatra (OKI, Muara Enim, and Musi Banyuasin) with plasma farmers as respondents. Three financing patterns were  analyzed: self-financing through savings, insurance-based financing, and bank loans. The research used a survey method and sampling was determined with a balanced random sampling technique with 90 respondents. The research concluded that the financing pattern of oil palm replanting can be done through savings, insurance, and bank loans. The best financing pattern for replanting is conducted by using their savings because it can produce the highest net B/C value; NPV; and the shortest payback period. Sensitivity analysis showed that Fresh Fruit Bunch (FFB) price reduction is the most sensitive for the financing patterns of their savings and bank loans, however for the financing patterns of insurance, the decrease in FFB production is mentioned as the most sensitive. The government has to maintain stable FFB pricing, and it is advised that they use their funds, which are arranged by KUD, to support the oil palm replanting. Five factors -complexity, compatibility, relative profitability, trialability, and observability - will be used to gauge farmers’ concerns about oil palm replanting. 
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.