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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 6 Documents
 1 
Search results for , issue "Vol 21, No 2 (2023)" : 6 Documents clear
Analisis Terrain Pada Lahan Berlereng Melalui Interpretasi Foto Udara Drone Solihin, Muhammad Amir; Siswanto, Shantosa Yudha; Kencana, Dika
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.v21i2.53452

Abstract

Terrain analysis on land can be done through field activities or remote sensing. The development of aerial photography technology through drones can be used to identify land conditions, especially on narrow land, and requires large-scale maps. Terrain characterization can use a Digital Elevation Model (DEM) generated through aerial photography with drone vehicles. This study aimed to determine the research location's topographic characteristics, scale, and class of map geometry accuracy. The research location is in the Eastern Region of Padjadjaran Jatinangor University, Hegarmanah Village, Jatinangor District, part of the Cikeruh Sub Das. The method used is a descriptive survey method and quantitative data analysis. The results showed that the topographic characteristics of the study location had an elevation of 715 – 747 m above sea level and a flat slope class (0 – 3%) – steep (>60%), which was dominated by a steep slope class (26 – 40%) on 55 land units. The aerial photography used meets the standard of map accuracy class at a scale of 1:2,500 class 3
Effect of biofertilizer with reduced dose of nutrient solution on yield of Pak Choy on Nutrient Film Technique System Hindersah, Reginawanti; Maulana, Nurzen; Damayani, Maya; Setiawati, Mieke Rochimi; Suryatmana, Pujawati; Fitriatin, Betty Natalie; Setiawan, Ade
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.v21i2.53445

Abstract

The Nutrient Film Technique (NFT) in hydroponic crop production systems generally uses chemical nutrient solutions to provide plant nutrients, even though biofertilizer inoculation can enrich liquid nutrients. The purpose of this experiment was to observe the effect of liquid biofertilizers applied with chemical nutrient solutions on changes in the acidity and electrical conductivity of nutrient solutions, as well as the growth and yields of pak choy (Brassica rapa L.) grown in Nutrient Film Technique. This experiment was set up in a completely randomized design with three nutrient solution treatments and eight replications. The treatments included the application of 100% chemical nutrient solution (control), and 75% and 50% concentrations of chemical nutrient solution enriched with a consortium biofertilizer. The results showed that at the end of the experiment, the acidity of all nutrient solutions increased, but their electrical conductivity (EC) was reduced. The fresh weight of pak choy shoots in medium B (75% chemical nutrition with biofertilizers) was 34% lower than the control (A), although statistically it was not significant. However, 50% chemical nutrition with biofertilizers produced the same shoot weight as the recommended dose of chemical nutrition. Moreover, 75% chemical nutrient with biofertilizers increased root weight. This current experiment verified that a reduced concentration of nutrient solution enriched with biofertilizer can be used to maintain the yield of pak choy grown in NFT.
Pengaruh Pupuk N Bio-organomineral terhadap pH, Nitrat, C-organik, Kandungan Pb Tanah dan Serapan Pb Tanaman 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 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.v21i2.53453

Abstract

Lead pollution in rice fields in Rancaekek is attributed to the inadequate processing of waste from the textile industry. This phenomenon engenders a decline in soil fertility, thereby posing a threat to both food quality and agricultural sustainability. Employing N Bio-Organomineral fertilizer stands as one of the measures aimed at ameliorating the quality of rice fields afflicted by heavy metal contamination, particularly lead (Pb). This study seeks to elucidate the impact of N Bio-Organomineral fertilizer on various soil parameters, namely pH, NO3 - , soil organic carbon (C-organic), soil Pb solubility, and plant Pb uptake. The research was conducted in Linggar Village, Rancaekek, spanning from December 2019 to April 2020. Utilizing a Randomized Block Design as the experimental setup consisted of eight treatments with four replications, including: a control (0), urea at 250 kg/ha, and varying doses of the fertilizer at 250, 500, 750, 1000, 1250, and 1500 kg/ha. N Bio-Organomineral fertilizer represents a modified form of nitrogen fertilizer comprising urea, zeolite, activated charcoal, and compost enriched with Bacillus subtilis, formulated in a ratio of 60:20:10:10, respectively. The findings indicate that the application of N Bio-Organomineral fertilizer leads to an augmentation in soil NO3 - and C-organic content, while concurrently mitigating the uptake of Pb by plants. Among the treatments, the application of 500 kg/ha of N Bio-Organomineral fertilizer emerges as the most efficacious in enhancing soil NO3 - and C-organic content, as well as diminishing Pb accumulation in plants
Pengaruh Pupuk Hayati dan Azolla (Azolla pinnata) terhadap Beberapa Sifat Kimia Tanah, Pertumbuhan, dan Hasil Padi Sawah (Oryza sativa L.) Setiawati, Mieke Rochimi; Ilyas, Ichsan; Suryatmana, Pujawati; Setiawan, Ade
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.v21i2.53446

Abstract

Application of Biofertilizer and Azolla (Azolla pinnata) to Improve Several Soil Chemical Properties, Growth and Yield of Rice Plants (Oryza sativa L.). Efforts to increase agricultural production through intensification programs cannot be separated from using artificial chemical fertilizers. However, the continuous use of artificial chemical fertilizers must be balanced by providing organic matter to avoid a deficiency of land-available nutrients, organic matter, and beneficial microorganisms. Using biofertilizers and Azolla can help provide nutrients and improve the biological properties of the soil. This research aimed to determine the effect of the interaction of biofertilizer and Azolla in increasing soil N and lowland rice yields. This research was conducted in a greenhouse, experimental garden, Ciparanje, Jatinangor, Faculty of Agriculture, Universitas Padjadjaran. The experimental design used was a factorial randomized block design with two factors. The first factor, the dose of Azolla pinnata (A), consisted of 4 levels: without Azolla, Azolla 10 t ha-1, Azolla 20 t ha-1, and Azolla 30 t ha-1. In comparison, the second was the dose of solid biofertilizer (H), which consisted of 3 levels, without biofertilizer, 12.5 kg ha-1 biofertilizer, and 25 kg ha-1 biofertilizer, repeated three times. The results of the study showed that there was no interaction between biofertilizer and A. pinata on total soil N, plant N concentration, soil C/N ratio, and lowland rice (Oryza sativa L.) yields; however, the application of Azolla 30 t ha-1 increase the number of productive tillers. The application of biofertilizer and Azolla has yet to increase rice plants' Dry Harvested Grain (DHG). However, the DHG tends to increase by 9.58% and 9.95%, respectively, compared to the control
Perubahan Komposisi Mikrob dalam Proses Fermentasi Kopi Honey dan Natural Kamaluddin, Nadia Nuraniya; Solihin, Eso; Suryatmana, Pujawati; Januar, Dodi Ganjar; Rainaldi, Rainaldi; Setiawan, Ade
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.v21i2.53447

Abstract

This study investigates the microbial populations during different coffee fermentation processes and their impact on coffee quality. Bacillus, Pseudomonas, and endophytic populations in coffee beans undergoing natural saccharic and natural lactic fermentation remained unchanged compared to fresh coffee beans. However, a notable increase in Bacillus population occurred in honey saccharic fermentation, possibly attributed to the high sugar content in the mucilage, supporting bacterial growth. Additionally, the introduction of Lactobacillus and Saccharomyces during fermentation enhanced sugar consumption and influenced the final coffee quality, particularly aroma profile and nutritional composition. Varietal differences were observed, with Bacillus population decreasing slightly post-fermentation, especially in honey saccharic and natural lactic processes. This decline may be attributed to the dominance of Saccharomyces and Lactobacillus, antagonistic to Bacillus, and the fermentation conditions leading to decreased pH, unfavorable for Bacillus. These findings highlight the intricate microbial interactions and their implications for coffee fermentation and quality.
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.

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