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Soil REns
Published by Universitas Padjadjaran
ISSN : 14114224     EISSN : 26854058     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
SoilREns merupakan jurnal ilmiah ilmu tanah pertanian dan lingkungan. Berisi kumpulan hasil penelitian terkini mengenai isu-isu ilmu tanah pertanian dan lingkungan. Diterbitkan atas kerjasama antara Departemen Ilmu Tanah dan Sumberdaya Lahan Fakultas Pertanian UNPAD, bekerjasama dengan Himpunan Ilmu Tanah Indonesia (HITI).
Arjuna Subject : -
Articles 142 Documents
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Pengaruh pupuk N Bio-organomineral terhadap pH, NO3-, C-organik, Na-dd, kandungan Pb tanah dan serapan Pb padi (Oryza sativa L.) pada sawah tercemar limbah tekstil Sudirja, Rija; Masruri, Muhammad Kholil; Suryatmana, Pujawati; Rosniawaty, Santi; Kamaluddin, Nadia Nuraniya; Sandrawati, Apong
Soilrens Vol 22, No 1 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i1.57231

Abstract

Lead (Pb) heavy metal pollution on rice fields in Rancaekek is caused by the disposal of textile industry waste which is not perfectly processed. The impact is a decrease in soil fertility which can threaten the food quality and agricultural sustainability. The application of N Bio-Organomineral fertilizer is one of the efforts to improve the quality of rice fields polluted with heavy metals Pb and high Na content. This research aims to find out the effect of N Bio-Organomineral fertilizer on pH, NO3-, Na, C-organic soil, solubility of soil Pb and uptake of plants Pb. The experimental design used a Randomized Block Design (RBD) with eight treatments and four replications consisting of: 0 (control); urea 250 kg/ha; and the variation in the dose of fertilizer is 250; 500; 750; 1000; 1250; 1500 kg/ha. N Bio-Organomineral fertilizer is a modification of N fertilizer based on urea, zeolite, activated charcoal and compost enriched with Bacillus subtilis with formulation 60:20:10:10. The results showed that the application of N Bio-Organomineral fertilizer could increase the NO3- and C-organic content of the soil and reduce the Na-dd and Pb uptake of plants. Treatment of 500 kg/ha N Bio-Organomineral fertilizer was the best dose in increasing the NO3- and Corganic content of the soil and reducing Na-dd and Pb uptake of plants
Investigation of Lithologic Discontinuities Phenomenon in Andisols derived from Mt. Patuha Devnita, Rina; Arifin, Mahfud; Sandrawati, Apong
Soilrens Vol 22, No 1 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i1.57238

Abstract

Lithologic discontinuity reflects the distinct change between different types of soil layers that can occur due to various geological process, resulted in variation composition, colour, texture, organic matter, consistency, structure, and others characteristics. Soils derived from volcanic eruption have the possibility to have lithologic discontinuity in the depth of the soil profiles due to the different eruption that formed the soils. Soils developed from the eruption of Mt. Patuha were investigated whether lithologic discontinuity presence the soil layers. The research used descriptive and comparative method of two profiles, analysed the soil macro-morphology and soil laboratory analyses covered colour, organic carbon, texture, consistency and structure. The result showed that the unusual pattern distributed of colour, organic matter, consistency, structure indicated the lithologic discontinuities of the underlying 2Ab (A buried) horizon to the overlying horizon. The darker colour, higher organic matter content, friable consistency in 2Ab in deeper depth, were some indications of lithologic discontinuities, where in soil without lithologic discontinuities the deeper depth or horizon was normally lighter colour, lower organic matter content and firmer consistency. However, detailed analysed with instruments like XRF and VIS DRS are needed to have the precise elemental composition in every horizon which conclude the horizon from the same or different parent materials.
Pengaruh Kemiringan Lereng Terhadap Komposisi Fraksi Tanah Pada Berbagai Posisi Lereng Siswanto, Shantosa Yudha; Solihin, M. Amir
Soilrens Vol 21, No 2 (2023)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v21i2.53448

Abstract

The research is carried out to see the impact of slope steepness differences with different slope positions on the composition of soil fractions in Cikeruh catchment. The fieldwork in this research is carried out based on physiographic appearance and is also known as the free physiographic survey method. Soil samples were taken at slopes 8-15%, 15-25%, and 25-40% with four replications. Thus, there were a total of 36 sample points. The result conclude that slope steepness gave a significant impact on soil fraction composition.
Potensi Jenis Bahan Pembawa (Carrier) Pemfiksasi N untuk Meningkatkan Pertumbuhan dan hasil Kedelai (Glycine max L.) pada Inceptisol Jatinangor Suryatmana, Pujawati; Wati, Dyah Aditya; Kamluddin, Nadia Nuraniya; Setiawati, Mieke Rochimi
Soilrens Vol 22, No 1 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i1.57232

Abstract

Sustainable agriculture is the proper solution for improving the fertility of Inceptisol, which is potentially suitable for soybean cultivation. Balanced fertilization, using both inorganic fertilizers and nitrogen-fixing biofertilizers, is one appropriate solution. To enhance the effectiveness of nitrogenfixing bacteria, a suitable carrier material is needed. This study aims to assess the potential of different carrier materials for Azotobacter and Bacillus on the growth and yield of soybeans on Inceptisol in Jatinangor. The research employs a Randomized Block Design with two factors: NPK dosage (0%, 50%, and 100%) and Azotobacter sp. and Bacillus sp. in various carriers (compost, bran, and Azolla powder) with 3 replicates. The results indicate that the interaction of Azotobacter sp. and Bacillus sp. in carriers had no significant effect on the height and chlorophyll content of soybean plants. The 100% NPK dosage yielded the highest number of pods compared to the 50% and 0% dosages. The treatment of Azotobacter and Bacillus in carriers did not significantly affect the number of filled pods, plant height, or chlorophyll content.
Penerapan Euclidean Distance untuk analisis driver variable Perubahan Penggunaan Lahan dari Jarak Jalan di Sub-DAS Cikapundung A. Leonardo, Patrick; Arifin, Mahfud; Siswanto, Shantosa Yudha
Soilrens Vol 22, No 1 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i1.57248

Abstract

The Cikapundung Sub-watershed is part of the Upper Citarum Watershed, with its catchment area covering West Bandung Regency, Bandung City, and Bandung Regency. The increasing land use activities in the Cikapundung Sub-watershed have driven significant development activities in the upper areas of the subwatershed. One of the factors influencing this development is the road network, which affects the accessibility of an area, known as the driver variable. The creation of this driver variable requires GIS analysis using the Euclidean distance module, which calculates the distance from the roads. This calculation yields radial distances, ranging from the farthest to the nearest distances. It is known that local roads are the longest in the Cikapundung Sub-watershed, reaching 644.31 km. Based on the Euclidean distance calculation, the farthest distance from the road is 9504.22 meters, and the nearest is 0 meters. The map resulting from this calculation can be used to analyze the extent to which the distance from the road influences land use changes as a driver variable in the Cikapundung Sub-watershed.
Efek Aplikasi Pupuk NPK cair terhadap P-tersedia, Serapan P, dan Bobot Umbi Bawang Merah (Allium ascalonicum L.) di Tanah Inceptisol Jatinangor Sara, Dirga Sapta; Sofyan, Emma Trinurani; Citraresmini, Ania
Soilrens Vol 22, No 2 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i2.61719

Abstract

Shallots are a high-value horticultural commodity that requires optimal phosphorus (P) availability tosupport growth and bulb production. However, Inceptisol soils have limitations in providing phosphorusdue to their high fixation capacity and low organic matter content. This study aimed to examine the effectof liquid NPK fertilizer application on soil phosphorus availability, plant phosphorus uptake, and shallotbulb yield in Inceptisol soil. The experiment was conducted using a randomized complete block design(RCBD) with six treatments: control, recommended NPK fertilizer, and four doses of liquid NPK fertilizer(½, 1, 1 ½, and 2 doses), each with four replications. The results showed that liquid NPK fertilizerapplication significantly increased soil phosphorus availability, plant phosphorus uptake, and both freshand dry bulb weights compared to the control. The 1 ½-dose liquid NPK fertilizer treatment resulted in anavailable P content of 12.72 ppm, a phosphorus uptake of 3.28 mg plant⁻¹, a fresh bulb weight of 78.63 gclump⁻¹, and a dry bulb weight of 63.86 g clump⁻¹, which were not significantly different from therecommended NPK treatment. This indicates that applying 1 ½ doses of liquid NPK fertilizer can serve asan equivalent alternative to conventional granular NPK fertilizer in providing phosphorus for shallotcultivation. Thus, the application of liquid NPK fertilizer at 1 ½ times the recommended dose can beproposed as an effective and efficient fertilization strategy to improve shallot productivity in Inceptisol soil.
Land Suitability and Economic Feasibility Analysis of Peanuts (Arachis hypogaea) in Jatinangor Subdistrict, West Java Province Devnita, Rina; Solihin, Muhammad Amir; Sandrawati, Apong; Sitorus, Hasnan Pratama
Soilrens Vol 22, No 2 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i2.61720

Abstract

Jatinangor Subdistrict in West Java Province has potentiality to be grown by peanuts (Arachishypogaea) due to the proper climate and the quite spacious availabity land. The farmers in this areaare also used to grow this legume and the demand for this commodity increases by years. The objectiveof this study was to evaluate actual land suitability classes and economic feasibility of peanuts inJatinangor Subdistrict. The methodology using survey method following by sampling and laboratoryanalyses to evaluate land suitability. The assessment used matching table considering the limitingfactor for evaluating land suitability. The economic feasibility using R/C ratio (Revenue Cost Ratio).The results showed that the actual land suitability class for peanuts class S3 (Marginal Suitable) withthe limiting factors of water availability, organic carbon content and slope. Non suitable also foundwith limiting factors of coarse material and slope. The R/C ratio for peanuts was 1.52, indicating thatpeanuts were feasible and profitable to cultivate in Jatinangor Subdistrict.
Karakteristik Tanah Andisol Pasca Konversi Lahan Hutan Menjadi Semak Anindita, Sastrika; Sandrawati, Apong; Arifin, Mahfud; Devnita, Rina
Soilrens Vol 22, No 2 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i2.61737

Abstract

Land use conversion can affect characteristics of soil and also soil quality. The present study evaluate theimpact of land use conversion from pine forest to bush in tropical volcanic soils in Indonesia. We comparedtwo soil profiles from the same areas (uphill slope of Mt. Tangkuban Perahu) and analysed theirmorphological, physical, and chemical soil properties. Our study showed that there was a decrease in soilorganic carbon stock about 3.7% (382 ton C ha-1) after approximately 8-15 years of land conversion. Other physical and chemical soil properties, such as soil texture, bulk density, pH, exchangeable base and acidity,cation exchange capacity, and base saturation were relatively similar. This research provide insight intohow change in vegetation cover can affect carbon and nutrient dynamics as well as become a baseline tounderstand soil recovery potential if the land is restored to forest or bush in volcanic soils.
Efek Aplikasi Pupuk NPK cair terhadap P-tersedia, Serapan P, dan Bobot Umbi Bawang Merah (Allium ascalonicum L.) di Tanah Inceptisol Jatinangor Setiawati, Mieke Rochimi; Maharani, Nadhira Saniya; Suryatmana, Pujawati; Hindersah, Reginawanti; Fitriatin, Betty Natalie; Chotimah, Andina; Aditya, Fasa
Soilrens Vol 22, No 2 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i2.61717

Abstract

The increase in corn plant growth is greatly influenced by cultivation techniques includingfertilization. However, the use of inorganic fertilizers for a long period of time can reduce soil quality.An alternative environmentally friendly technology that can substitute for the use of inorganicfertilizers is the biological fertilizer of nitrogen-fixing endotypic bacteria. These endophytic bacteriahave benefits as growth stimulants for plants in increasing nitrogen supply through N2 fixationthrough the air. This study aims to increase the growth of corn plants through the application methodand type of nitrogen-fixing endophytic bacteria. This study used a Randomized Block Design (RBD).The treatment of types and application methods consisted of treatments without endophytic bacterialisolates, endophytic bacterial isolates Gluconacetobacter diazotrophicus Corrig, G. diazotrophicusstrain 4L, and Burkholderia gladioli with three application methods, namely seed treatment, soiltreatment, and their combinations. The results of the study showed that G. diazotrophicus 4L bacteriaapplied by seed and soil treatment gave the best effect on the growth of corn plants on the parametersof the endophytic bacterial population in leaf tissue, wet weight and dry weight of corn by 1 and 3times compared to the control and there was also a tendency to increase the dry and wet weight of thecorn plant crown
Pengaruh Dosis dan Frekuensi Pemberian Pupuk Tunggal (N,P,K) dan Pupuk Majemuk NPK Terhadap N-Total, P-tersedia dan K-dd Padi Sawah (Oryza sativa L.) pada Inceptisols Siswanto, Shantosa Yudha; Wianggadana, Rangga; Harryanto, Rachmat; Setiawan, Ade; Sonjaya Sule, Marenda Ishak
Soilrens Vol 22, No 2 (2024)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v22i2.61738

Abstract

The study was conducted to determine the effects of dosage and frequency of applying single fertilizers (N,P, K) and compound NPK fertilizers on total nitrogen (N-total) using lowland rice (Oryza sativa L.) grownin Inceptisols. The research was carried out in rice fields located in Ciparay, Jelekong Subdistrict, BaleendahDistrict, Bandung Regency. A Randomized Complete Block Design (RCBD) was employed, consisting of seventreatments with three replications: (1) Control, (2) Single NPK fertilizer (grade 123,75-36-50), Frequency3, (3) Compound NPK Pelangi fertilizer (grade 80-40-40), Frequency 3, (4) Single NPK fertilizer (grade 8040-40),Frequency 3, (5) Single NPK fertilizer (grade 123,75-36-50), Frequency 2, (6) Compound NPKPelangi fertilizer (grade 80-40-40), Frequency 2, and (7) Single NPK fertilizer (grade 80-40-40), Frequency2. The results indicated that, in general, fertilization applied twice yielded the highest N-total values.Meanwhile, fertilization applied three times resulted in higher available phosphorus (P-available) levels.However, differences in fertilization treatments did not significantly affect exchangeable potassium (K) inInceptisols.

Page 14 of 15 | Total Record : 142

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