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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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Evaluasi Keberhasilan Reklamasi Lahan Bekas Tambang Pasir (Galian C) dengan Tanaman Gamal (Gliricidia sepium (Jacq.) Steud) (Studi Kasus di Desa Cibeurem Wetan, Cimalaka, Sumedang, Jawa Barat) Ikrar Nusantara Putra; Dhea Rakhmat Ginanjar; Apong Sandrawati
Soilrens Vol 12, No 1 (2014)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v12i1.29432

Abstract

Cimalaka is well known for its high quality sands for building material. Unfortunately, the sand mines opened in Cimalaka areas are less managed and have degraded. Usually, the soil has no organic horizon so that no vegetation covered the soils. The land was mined repeatedly without appropriate reclamation effort, thus supported the invasive plants species to cover the site. Gliricidia sepium has known as invasived plants. This research was conducted to evaluate ecosystem function of post-sand mining land Cimalaka, Sumedang, West Java that revegetation with Gliricidia sepium. The research showed that Gliricidia sepium was high potentially improved soil quality in eks sands mining. The roots of Gliricidia sepium increase the content of organic in soils, so that with the litters. The enhancement of organic content potentially impacted increasing organism activities that would impact to soil quality improvement. Soils quality improvement showed by increasing soil pH and organics contents into more suitable for organism growth.
Pengaruh Pupuk NPK Majemuk terhadap N-Total, Serapan N, dan Hasil Umbi Bawang Merah (Allium ascalonicum L.) pada Inceptisols Asal Jatinangor Shindy Widiana; Anni Yunarti; Emma Trinurani Sofyan; Dirga Sapta Sara
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29042

Abstract

Shallot (Allium ascalonicum L.) is a horticulture commodity that has a lot of benefits and also prospective due its increasing demand. Annual shallot productivity in Indonesia is unstable due to nutrient degradation on agricultural land, therefore efforts are needed to promote the productivity of shallot. One of the solution using NPK fertilization. This experiment aimed to determine the effect of NPK compound fertilizer on N total, N-uptake, and shallot bulb yield. This research conducted at the Soil Chemical and Plant Nutrition Experiments Field, Faculty of Agriculture, Padjadjaran University, Jatinangor, from February to June 2019. The experimental design used was Randomized Block Design (RBD) consisted of one control treatment, one N, P, K single fertilizer treatment (250 kg ha-1 Urea, 125 kg ha-1 ZA, 200 kg ha-1 SP-36, and 250 kg ha-1 KCl), and eight NPK compound fertilizer treatments in various doses with three replications. The results showed that the NPK compound treatment affected the total N, N uptake, and shallot bulbs yield. Treatment of 75% NPK compound (675 kg ha-1) gave the highest results of fresh bulbs weight at 41.64 g/clump and dry bulbs weight at 25.27 g/clump.
Potensi Bakteri Pereduksi Sulfat dan Jenis Bahan Organik dalam Pengolahan Air Asam Tambang menggunakan System Constructed Wetland Tanaman akar Wangi (Vetiveria zizanioides L) Pujawati Suryatmana; Apong Sandrawati; Ikrar Nusantara Putra; Nadia N. Kamaluddin
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32075

Abstract

Acid mine drainage (AMD) is a waste product from coal mining process. Acidic waste will impose a serious environmental issue such as organism annihilation and destruction of environmental ecosystem. Proper AMD management is required in order to restore polluted water to the proper standard condition. The Constructed Wetland system with Akar Wangi (Vetiveria zizanioides L.) and various organic growth medium compositions and sulphate-reducing bacteria and the composition of the media for several types of organic matter with sulfate-reducing bacteria (SRB) inoculation as stimulant was deemed a promising solution. This study was designed in randomized block design (RBD) consisted of nine treatments with three replicates. The treatments were: (A) = without organic matter and without SRB inoculation (control), (B) = 100% compost, (C) = 100% sawdust, (D) = 50% compost + 50% sawdust, (E ) = no organic matter + SRB inoculation (105 MPN ml-1), (F) = 100% compost + SRB inoculation, (G) = 100% sawdust + SRB inoculation, H = 50% compost + 50% sawdust + SRB inoculation, I = 75% compost + 25% sawdust + SRB inoculation. Results showed that 100% compost and SRB application increased polluted water pH. Application of 100% sawdust with or without SRB inoculation gave the highest reduction in sulfate content. SRB also has the potential to increase the height of Akar Wangi plant.
Pengaruh Inokulan Blue-green Algae dan Pupuk N terhadap Populasi BGA, Kandungan N-total tanah, Serapan N, Konsentrasi N dan Berat Kering Tanaman Padi (Oryza sativa L.) pada Inceptisols Asal Jatinangor Mieke Rochimi Setiawati
Soilrens Vol 12, No 1 (2014)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v12i1.29428

Abstract

This study aims to determine the effect of the combination of BGA inoculant and N fertilizer on total-N of the soil, N uptake, N concentration and dry weight of paddy rice (Oryza sativa L.) in Inceptisols Jatinangor. This research was conducted in the green house of the Faculty of Agriculture, University of Padjadjaran, Jatinangor, Sumedang. The study used a randomized block design (RAK) factorial, with two treatment factors, namely N fertilizer (N) 4 levels of factors, namely; n1 = 0.326 g pot-1 urea, urea n2 = 0.652 g pot-1, n3 = 0.978 g pot-1 urea and urea n4 = 1.304 g pot-1. The second factor is the BGA inoculants (B) which consists of 3 levels of factors, namely; b0 = no inoculant BGA, b1 = 0.025 g inoculant BGA pot-1 and b2 = 0.05 g pot-1 inoculant BGA each repeated 3 times. The results showed there was an interaction between N fertilizer with Blue-green Algae inoculant on the increasing in dry weight of the canopy, but not the total-N content of the soil, N uptake, and N concentration of rice plants. N fertilizer and Blue-green algae inoculants affected the increaseing on total-N soil. Based on the increasing in dry weight of rice plant canopy, BGA inoculant application can save the use of fertilizer N half of a given dose of urea fertilizer
Efektifitas Pembuatan Kompos Limbah Pabrik Teh Hijau (Tea Fluff) Menggunakan EM4 dan Pupuk Kandang Sapi Restu Wulansari; Anni Yuniarti; Erdiansyah Rezamela
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29036

Abstract

One of the way to use green tea factory waste (tea fluff) as a source of plant nutrients is in the form of compost. The aim of this research was to get the appropriate composition of composting of green tea factory waste using a combination of EM4 and cow manure and composted for 5 weeks (35 days). This research was designed in randomized block with 6 treatments and four replications. Compositions of tea fluff and manure compost consisted of: P1 = Control; P2 = Tea Fluff + cow manure (1: 1); P3 = Tea Fluff + cow manure (1: 2); P4 = Tea Fluff + cow manure (1: 3); P5 = Tea Fluff + cow manure (2: 1); and P6 = Tea Fluff + cow manure (3: 1). Data related to composting process such as physical quality (color, texture, and odor) and chemical analysis (pH, C-organic, N-total and C/N ratio) were taken. Based on the results of daily temperature and pH fluctuations, composting proces ran normally. Based on the results of chemical analysis, the parameters of pH, organic C and N-total compost showed significant differences. Within 5 weeks, all compost parameters that have been analyzed chemically and the results has fulfilled the quality standards according SNI 19-7030-2004 standard. Combination of tea fluff:cow manure (3: 1) showed the highest C-organic and N-total results among all treatments.
Aplikasi Pupuk Urea, Pupuk Hayati Penambat Nitrogen Dan Amelioran Untuk Meningkatkan pH, C-Organik, Populasi Bakteri Penambat Nitrogen dan Hasil Jagung pada Inceptisols Mieke Rochimi Setiawati; Yudith Silfani; Nadia Nuraniya Kamaluddin; Tualar Simarmata
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32071

Abstract

Inceptisols is known as one of the less-fertile dryland soil order that is widely used for corn cultivation. Proper type and dose of fertilizer can overcome the plant nutrition deficiency and increase corn yield in Inceptisols. This research aimed to examine whether the application of Urea with different doses, N-fixing biofertilizer and ameliorant can affect pH, Organic C, N-fixing bacteria population, and corn yield. The research was conducted at Balai Pengembangan Benih Hortikultura dan Aneka Tanaman Pasir Banteng, Jatinangor from January to June 2020. This research used Randomized Block Design with 16 treatments. The result showed that application of Urea with different doses, N-fixing biofertilizer and ameliorant significantly affected N-fixing bacteria population and corncob weight. 40% dose of Urea and 2 ton ha-1 ameliorant gave the best increase in corncob weight per plant of Bisi-2 by 345 g.
Efisiensi Pupuk dan Peningkatan Hasil Padi Gogo dengan Aplikasi Pupuk Hayati dan Arang Tempurung Kelapa Betty Natalie Fitriatin; Tien Turmuktini; Muhamad Iqbal Kusma Sudana; Dzakaria Yogaswara; Randy Nugraha
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29043

Abstract

The intensive application of inorganic fertilizers has a negative impact on soil health. Furthermore, the price of inorganic fertilizers has increased hence the production costs will also increase. Efforts to improve fertilizer efficiency and encourage environmentally friendly crops can be done by application of biofertilizers and organic ameliorants. The field experiment has been carried out to study the effect of biofertilizers application and coconut shell charcoal to increase inorganic fertilizers efficiency and yield of upland rice at Rancakalong, Sumedang, West Java. The experiment used factorial randomized block design consisted two factors. The first factor were biofertilizers and coconut shell charcoal and the second factors were inorganic fertilizers doses. Biofertilizers with consortia of Azotobacter chroococum, Azospirillum sp., Pseudomonas mallei, Burkolderia sp., Aspergillus niger, and Penicillium sp. and organic ameliorant was coconut shell charcoal. NPK fertilizers were applied in 25%, 50%, 75% and 100% of recommended doses. The results revealed that biofertilizers and coconut shell charcoal increased growth and yield of upland rice. This finding concludes that applica
Pengaruh Kombinasi Pupuk NPK dengan Suplemen Pupuk Organik Cair terhadap Jumlah Bakteri dan Jamur Total di Rizosfer serta Hasil Tanaman Sawi Putih (Brassica pekinensis L.) pada Andisols Lembang Dirga Sapta Sara; Reginawanti Hindersah; Mieke Rochimi Setiawati
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32076

Abstract

Large P fixation on Andisols can be overcome by adding P fertilizer into soil. However, to support good plant growth required the provision of nutrients N, K, micro nutrients and hormones. Research objective was to find out effect of NPK fertilizer with liquid organic fertilizer on total bacteria and fungi in the rhizosphere and plant yield of chinesse cabage (Brassica pekinensis L.) grown in Andisols. Experiment was conducted from March until May 2011 at experimental field of PT. Multiguna Indah Lestari, Kayu Ambon village, Lembang subdistrict, Bandung regency, West Java, with altitude of 1000 m above sea levels. The experimental design was Randomized Block Design with nine treatments and three replications which consisting of combination. The fertilizer rates were without treatment (A), 1dose of NPK (B), 1 dose of liquid organic fertilizer (C), 1 dose of NPK + ½ dose of liquid organic fertilizer (D), 1 dose of NPK + ½ dose of liquid organic fertilizer (E), ½ dose of NPK + 1 dose of liquid organic fertilizer (F), ½ dose of NPK + 1 dose of liquid organic fertilizer (G), 1 dose of NPK + 1 dose of liquid organic fertilizer (H), 1 dose of NPK + 1 ½ dose of liquid organic fertilizer (I). The results showed that NPK fertilizers and liquid organic fertilizer influenced total bacterial as well as fungi in the rhizosphere and plant yield of chinesse cabage. Fertilization treatments that demonstrated the best effect on both microbial population and chinese cabbage yield was application of ½ recommended dose of NPK with 1 recomended dose of liquid organic fertilizer gives the best result of 54,72 kg per plot (54,18 ton ha-1).
Pengaruh Kemiringan Lereng dan Penggunaan Lahan terhadap beberapa Sifat Fisika Tanah di Sub-DAS Cikapundung Hulu Abraham Suriadikusumah; Ridha Hudaya; Adhe Sigit Sutanto
Soilrens Vol 12, No 1 (2014)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v12i1.29429

Abstract

This research was conducted to find out the effect of various slope classes and land use types on porosity, permeability and soil's aggregate stability index. The research was carried out from June up to December 2009 in Upper Cikapundung Sub Watershed which area was located in West Bandung Regency and Subang Regency, West Java. The method used in this research was explorative survey method. Sampling technique which used based on purposive stratified sampling method. Soil sampling was carried onto three various slope classes in three various land uses, which consist of: 8- 15% slope classes in pine forest, 8-15% slope classes in secondary forest, 8-15% slope classes in tea plantation, 15-30% slope classes in pine forest, 15-30% slope classes in secondary forest, 15-30% slope classes in tea plantation, 30-45% slope classes in pine forest, 30-45% slope classes in secondary forest and 30-45% slope classes in tea plantation. The result of this research showed that highest soil total porosity achieved in 8-15% slope classes in secondary forest, 8-15% slope classes in pine forest, 15-30% slope classes in all land use and 30-45% slope classes in all land use. Highest permeability achieved in 8-15% slope classes in all land use, 15-30% slope classes in tea plantation, 15-30% slope classes in pine forest and 30-45% slope classes in tea plantation. Soil index aggregate stability achieved in 8-30% slope classes in secondary forest, 8-30% slope classes in tea plantation and 30- 45% slope classes in all land use
Potensi Tanaman Sorgum (Sorghum bicolor L.), Azotobacter sp. dan Pseudomonas sp. Sebagai agen biologis dalam proses Fitoremediasi Hidrokarbon minyak bumi Pujawati Suryatmana; Alyani Shabrina; Nadia Nuraniya Kamaluddin; Betty Natalie Fitriatin; Reginawanti Hindersah; Mieke Rochimi Setiawati
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29039

Abstract

Phytoremediation using Sorghum (Sorghum bicolor L.) plant is an alternative green technology to overcome oil polluted soil. Improving of the phytoremediation performance are needed stimulating agent to enhance the rate of hydrocarbon biodegradation and increase the plant growth. One of the bioagent that can act as biostimulant is Azotobacter sp. and Pseudomonas sp., because thouse bioagent can provide elements N and P, and phytohormone for sorghum plants. The purpose of this study is to examine the role of Azotobacter sp. and Pseudomonas sp. as a biostimulant for Sorghum bicolor L. in the process of biodegradation of petroleum hydrocarbon in soil system. The factorial randomized block design was used as the experimental design. The treatment consisted of 4 application levels of Azotobacter sp. and 4 levels of application of Pseudomonas sp. The results showed that there was no interaction between Azotobacter sp. and Pseudomonas sp. aplication on the efficiency of hydrocarbon degradation of the population of Azotobacrer spp., Pseudomonas spp. and plant height increase. Azotobacter sp. and Pseudomonas sp. also did not show an increase in value on each test variable. While, the potential of sorghum plants without the application of Azotobacter sp. and Pseudomonas sp. (control treatment) showed the value of the efficiency of biodegradation in the range of values of 60.442% - 68.165% during 14 weeks period and not significantly different from other treatments.

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