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Rinto Manurung
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INDONESIA
Jurnal Ilmu Tanah dan Sumber Daya Lahan
Published by Universitas Tanjungpura
ISSN : 2443101X     EISSN : 25799800     DOI : https://10.26418/pedontropika
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Research and study in soil science and other fields related, include : Soil physics and conservation Soil chemistry and fertility, Soil biology and biotechnology Clay mineralogy Plant nutrient Pedogenesis Geology and Mineralogy Soil survey and classification Soil reclamation and remediation Soil and Water Quality
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah
Articles 6 Documents
 1 
Search results for , issue "Vol 8, No 2 (2022): Agustus" : 6 Documents clear
Kesesuaian Lahan Sawah Pasang Surut dan Faktor Pembatas Utama Tanaman Padi di Kecamatan Sinaboi, Kabupaten Rokan Hilir Mhd Roqi Muntazar
Pedontropika : Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 8, No 2 (2022): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v8i2.57038

Abstract

The paddy production is decreasing due to land characteristics that are not suitable for its crop requirements. This study aims to identify the inhibiting factors of growth and production and evaluate land suitability based on the factors that inhibit growth and production of tidal paddy fields. The research method used is a soil survey. Soil sampling points were determined based on the overlay results of the current paddy field map and the map of land and soil units. The suitability assessment of paddy fields is carried out using a matching system in actual and potential conditions. The actual land suitability of all SLH is not current suitable (N1) with a very high Fe inhibiting factor. Limiting factors of Fe content can be overcome by making one-way drainage channels, adding organic matter, liming, fertilizing and or using tolerant varieties. The potential land suitability of all SLH is marginally suitable (S3).
Metode Klasifikasi Normalized Difference Vegetation Index Berbasis Citra Landsat 8 untuk Identifikasi Sebaran Kondisi Kesehatan Tanaman Kelapa Sawit di PT. Andira Agro, Sumatera Selatan Rosa Bela Yurianda; Dwi Setyawan; Warsito Warsito
Pedontropika : Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 8, No 2 (2022): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v8i2.56431

Abstract

Kesehatan tanaman merupakan hal yang penting karena dapat meningkatkan produktivitas tanaman dan keberlanjutan produksi tanaman tersebut. Perkebunan kelapa sawit merupakan areal yang luas sehingga dalam pengamatan kesehatan kelapa sawit ini dapat menggunakan penginderaan citra satelit. Penilaian secara cepat kesehatan tanaman kelapa sawit dengan menggunakan metode NDVI berbasis citra Landsat 8 dapat dengan cara menganalisis tingkat kehijauan daun. Penelitian ini bertujuan untuk menilai kondisi kesehatan tanaman sawit dan untuk mengetahui tingkat akurasi penilaian kesehatan kelapa sawit berbasis citra Landsat 8. Penelitian ini dilaksanakan di PT. Andira Agro, Kabupaten Banyuasin, Sumatera Selatan. Penelitian ini menggunakan metode klasifikasi NDVI dengan band komposit 562. Hasil analisis kandungan klorofil total tertinggi terdapat pada tahun tanam 1999 sebesar 26,13 mg/L dan nilai kandungan klorofil total terendah terdapat pada tahun tanam 2008 sebesar 16,67 mg/L. Nilai kesehatan tanaman kelapa sawit di PT. Andira Agro dapat dibagi menjadi tiga kelas yang menunjukkan kesehatan vegetasi buruk terdapat pada rentang nilai berkisar 0,11 hingga 0,22. Kesehatan vegetasi normal berkisar 0,22 hingga 0,42; sedangkan, kesehatan vegetasi baik berkisar 0,42 hingga 0,72. Nilai hasil prediksi dan hasil pengukuran lapangan memiliki hubungan yang positif.
STATUS KESUBURAN TANAH INCEPTISOL PADA PENGGUNAAN LAHAN KELAPA SAWIT DI DESA PENGADANG KECAMATAN SEKAYAM KABUPATEN SANGGAU Suhemi Emi
Pedontropika : Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 8, No 2 (2022): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v8i2.57060

Abstract

ABSTRACTSeveral constraints on the chemical properties of inceptisol soils, including acid soil reactions, soil organic matter generally varies, as well as the value of cation exchange capacity, bases can be exchanged, base saturation, nutrient reserves and nutrient status of P and K are low, but have saturation (Al) tall one. The purpose of the study was to analyze the nutrient status and soil fertility of Inceptisols on oil palm land use in Pengadang Village, District, Sekayam, Sanggau Regency and suggestions for fertilization to support maximum oil palm production. Soil sampling was carried out on 5-year-old oil palm plantations. Diagonal soil sampling method with three replications. Analysis of chemical properties consisting of pH, C-organic, N-total, P-total, P-available, K-total, K-dd, CEC, KB, and soil Al were carried out in the soil chemistry and fertility laboratory. The results of the average nutrient status on oil palm land are N-total nutrient status of 0.20% (low), available P of 15.09 ppm (low), CEC of 9.06 cmol (+) kg-1 (low ), C-organic by 1.42% (low). P-total status is 37.5 ppm (very low), K-total is 87.5 ppm (very low), K-available is 32.5 ppm (very low), KB is 19.30% (very low) , Al saturation is 39.55% (high) and the soil fertility status of oil palm land is classified as very low. Suggestions for single fertilization of urea is 255.56 kg/ha, TSP is 142.81 kg/ha and KCL is 509.13 kg/ha and Phonska 15:15:15 NPK compound fertilizer is 428.40 kg/ha, and urea is 85 ,84 kg/ha and KCL 402,01 kg/ha, to increase the lack of nitrogen and potassium elements in the soil. The need for dolomite lime is 2,400 kg/ha.  
Evaluasi Tingkat Bahaya Erosi Beberapa Penggunaan Lahan di Kecamatan Sidoharjo, Wonogiri, Jawa Tengah dengan Metode USLE (Universal Soil Loss Equation) Aktavia Herawati; Sutarno Sutarno; Mujiyo Mujiyo; Yogi Sukma Mahendra
Pedontropika : Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 8, No 2 (2022): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v8i2.56395

Abstract

Erosion is one of the problems in agricultural activities. Soil erosion can cause loss of topsoil that contains nutrients for plants. The diversity of land use in agricultural activities affects the amount of erosion that occurs. This research aims to identify the level of erosion hazard in several agriculture land use and the determine factor of erosion, as well as provide direction for conservation in Sidoharjo District, Wonogiri, Central Java. This research is a survey research with exploratory descriptive approach based on the results of field observation and laboratory analysis. Sampling points were determined purposively on 12 land units. Parameters observed were soil texture, soil structure, organic matter, permeability, slope length and slope, vegetation, and conservation management. The results showed that the level of erosion hazard in the study area contained light, moderate, and severe erosion hazard levels, and moorland have the highest level and paddy field have the lowest level of erosion hazard. The determinant factors of soil erosion are plant management / vegetation and slope length/slope gradient. Conservation directions that can be carried out in Sidoharjo District for land use management improvement are a combination of vegetative conservation techniques such as the use of organic mulch and plant management to increase organic matter and mechanical conservation techniques such as terrace repairs to minimize soil loss.
Uji Kombinasi Dosis Biochar Tankos dan Kotoran Ayam untuk Perbaikan Kesuburan Tanah Sawah Urai Suci Yulies; Rini Hazriani; Mulidi Maulidi
Pedontropika : Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 8, No 2 (2022): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v8i2.59150

Abstract

Paddy is the main crop in the tidal land farming system. The use of tidal land, especially for rice plants, faces many obstacles, in general it has low fertility due to the lack of macronutrients N, P, K as well as high and varied agrophysical constraints. For this reason, in rice cultivation, Alluvial land needs ameliorant that is easy to obtain and cheap in price, to help increase Alluvial soil fertility in addition to N, P and K fertilizers. The research was carried out by taking soil samples in Sei Kakap in 2 different locations, and then the samples were analyzed at the Chemistry and Soil Fertility Lab of Faperta Untan. This study used a dose of empty fruit bunches (tankos) biochar and chicken manure with a ratio of 25% : 75%, 50% : 50% and 75% : 25%. The treatment was repeated 5 times, so there were 15 treatments. The design used is the completely randomized design. The results of the study explain that from the incubation experiment between biochar tankos, chicken manure, for 4 weeks the C/N ratio was <20%, besides that base saturation and CEC were higher than 2 weeks incubation, indicating that the use of organic biochar tankos + chicken manure with a ratio of 25:50 and 50:50 can increase the fertility of paddy fields.
Analysis of Land Water Balance to Set The Planting Time of Upland Rice in Kampar District Asri Dwilika Pratiwi; Besri Nasrul
Pedontropika : Jurnal Ilmu Tanah dan Sumber Daya Lahan Vol 8, No 2 (2022): Agustus
Publisher : Soil Science Department, Faculty of Agriculture, Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pedontropika.v8i2.58827

Abstract

Upland rice productivity in Kampar has decreased due to inappropriate planting time with rainfall. Plant water needs will not be met during the dry season and are at risk of crop failure. This study aims to determine the level of availability of groundwater based on land water balance analysis and determine the planting time of upland rice. The method used in this research was a survey method. Soil data of bulk density, field capacity water content, permanent wilting point moisture content, soil texture, and C-organic content were obtained with ring and composite soil samples. Soil sampling points were determined based on the results of overlaying the soil map and land use map using GIS techniques. Climate data for the period 1990–2019 was obtained from the Sumatra River Region III Center. Analysis of land water balance was carried out using the Thornthwaite-Matter method. The results showed that Kampar Regency was classified as a wet area with an annual rainfall of 2,508 mm (Oldemann D1). Soil water content was classified as a sufficient criterion every month, except for June–August. The planting of upland rice at SLH 1–SLH 7 (inpago variety) can be done in January, May, and September, while at SLH 8, it is done in January and September. Planting using local varieties at SLH 1–SLH 7 can be done in February and September, while at SLH 8, it is done in March and September. Alternatif planting can also be done by planting inpago varieties in February and local varieties in September.

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