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Soil REns

soilrens
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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 120 Documents

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Ketidaksinambungan Litologi dan Karakteristik Pedogenetik pada Beberapa Andisols di Jawa Barat Rina Devnita; Mahfud Arifin; Ridha Hudaya; Apong Sandrawati; Ade Setiawan
Soilrens Vol 16, No 2 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

ABSTRACT Andisols developed from parent materials of volcanic eruptions. Volcanic eruptions can occur within several periods, resulting in a sequence of soil layers that can differ from each period and produced lithologic discontinuity in the soil profile. Lithologicac discontinuity was investigated in Andisols developed from the eruptions of Mt. Tangkuban Parahu (Holocene, andesitic) and Mt. Tilu (Pleistocene, basaltic) in West Java through morphological observations of three profiles at each location. The results showed that there was lithologic discontinuity in all profiles indicated by changed in color by Munsell Soil Colour Chart, organic carbon, texture and structure as the specific A buried horizon that developed from the parent material of the earlier eruption period than the horizons above. It is recommended to carry out the mineralogical and micromorphological analyses to determine the differences in minerals and micromorphology of the discontinue horizons and carbon-dating analysis in the buried layer to determine the age of the soil and the period of eruption that developed the soil.Keywords: A buried horizon, Munsell Soil Colour Chart, organic carbon, soil mineralogy, soil morphology

Pengaruh Kombinasi Pupuk NPK dan Pupuk Hayati terhadap Populasi Total Mikroba Tanah dan Hasil Jagung Manis (Zea mays L. saccharata) pada Inceptisols Jatinangor Septyani Sofatin; Betty Natalie Fitriatin; Yuliati Machfud
Soilrens Vol 14, No 2 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Biofertilizer and N, P, K fertilizer combination is expected to decreased the application dosage of inorganic N, P, K fertilizer and increased the yield of maize. This experiment was conducted to describe the effect of N, P, K fertilizer and biofertilizer combination to the population total of soil microbes and yield of maize (Zea mays L. saccharata) on Inceptisols Jatinangor. This experiment was carried out Ciparanje Experimental Station, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor with altitude 820 meters from October 2015 to January 2016. This experiment was arranged in randomized block design which consisted of ten combinations and three replications. Ten combinations were: control; NPK standard dosage; biofertilizer standard dosage; ¼ of NPK + 1 of biofertilizer; ½ of NPK + 1 of biofertilizer; ¾ of NPK dosage + 1 of biofertilizer; 1 of NPK + 1 of biofertilizer; ¾ of NPK + ¼ of biofertilizer; ¾ of NPK + ½ of biofertilizer; and ¾ of NPK + ¾ of biofertilizer. The experiment showed that the combination of NPK and biofertilizer gave a significant effect to increased yield of maize. The standard dosage of biofertilizer reduced 50% of the NPK application and increased the yield of maize by 13,85% efficiently.Keywords: biofertilizer, NPK uptake, soil microbe, maize

Pengaruh Formula Pupuk Urea-Zeolit-Arangaktif terhadap pH, N-total, KTK tanah dan Residu Pb pada Tanah Tercemar Limbah Industri Rija Sudirja; Santi Rosniawaty; Ade Setiawan; Rhendika Indra Yunianto
Soilrens Vol 14, No 1 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

One of the factors inhibiting the production of rice is not efficient in the use of fertilizers and ecosystem damage due to toxic hazardous materials such as heavy metals. the use of Urea, Zeolite, Activated charcoal based fertilizer is expected to increase the production of paddy rice crops in rice fields heavy metal contaminated. The experiment was conducted in the village of the District Linggar Rancaekek Regency Bandung from March to May 2015. The experiment used randomized block design with four single treatment, that is A = urea : zeolite (95:5), B = urea : zeolite : activated charcoal (50:45:5), C = urea : zeolite : activated charcoal (50:25:25), D = urea : zeolite (60:40), each with five replicates. Rice varieties used are Inpari 30. The results showed that administration RS fertilizer formula is proven to reduce the solubility of approximately 30% Pb and increases the cation exchange capacity (CEC) of the soil. RS fertilizer no real effect on pH and N-Total soils. Formulation urea : zeolite : activated charcoal (50:25:25) can decrease the solubility of Pb, while the CEC best demonstrated by the increase in formulation urea : zeolite : activated charcoal (50: 45: 5). Key words: heavy metals, RS fertilizer, wetland rice

Potensi Pemanfaatan Tanaman Thypa sp dan Cyperus sp dalam Proses Remediasi Air Asam Tambang dengan Sistem Rawa Buatan Apong Sandrawati; Darmawan Darmawan; Dyah Tj. Suryaningtyas; Gunawan Djadjakirana
Soilrens Vol 16, No 1 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Acid mine drainage (AMD) is the main problem in open pit mining due to extremely low pH and high solubility of metals. Metal solubility can be reduced biochemically in an anaerobic condition. This research was aimed to design and test artificial wetland system constructed. The artificial wetland has been constructed, it contains with two organic wall, two growing pond, and one collecting pond, each component bounded by dike. Organic wall was placed next to growing pond that planted by Typha sp and Cyperus sp. Collecting pond was planted by Eichornia crassipes. Iron and Manganese were accumulated in the root of each plant. Cyperus sp has a fibril type while Typha sp has rhizome type. The fine roots such as root of Cyperus sp could accumulation Fe higher than a rhizome roots such as root of Typha sp. Productivity of biomass was 31,38 ton/ha for Eichornia crassipes, 17,11 ton/ha for Typha sp, and 16,67 ton/ha for Cyperus sp. Eichornia crassipes has a higher biomass than other plants, but the size of this plant become smaller, it because the lack of nutrient in collecting ponds. Cyperus sp seems more prospective, this plant has better of growth rate than other plants.

Keterkaitan parameter nilai pH, C-organik, N-Total, C/N dan alofan pada beberapa Andisols di Jawa Barat Rina Devnita; Mahfud Arifin; Ridha Hudaya; Ade Setiawan; Apong Sandrawati
Soilrens Vol 15, No 1 (2017)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v15i1.13459

The correlation of chemical parameters and soil mineralogy one to another in Andisols were interesting to be studied, to increase the understanding of soil reactions, nutrient availability and soil mineral content. Andisols from three locations and derived from three different volcanic eruptions namely G. Tangkuban Parahu, G. Patuha and G. Tilu, with andesite, andesite-basalt and basalt parent materials respectively, were examined the correlation of several soil parameters. The values of pH, organic carbon, total nitrogen, C/N and allophane content were obtained from the soil analysis of every horizon of the soil profiles at each site. Correlation analyses were used to see the relationship of the parameters. The results showed a negative correlation between pH and organic carbon (r = -590 *). The soil pH values were positively correlated with the amount of allophane (r = 0.687 *). The pH values were correlated positively with imogolite content (r = 0.356 *). The pH values were negatively correlated with organic carbon (r = -0.590 *). The organic carbon content was negatively correlated with depth (r = - 0.582 *). The organic carbon content was negatively correlated with allophane (r = 0.707 *). Total nitrogen values were negatively correlated with increasing depth (r = -0.531 *).Keywords: Mt. Tangkuban Parahu, Mt. Patuha, Mt. Tilu, andesit, andesit-basalan, alophane

Pengaruh Macam Bahan Organik terhadap Nilai pH, pH0, Retensi P dan P tersedia pada Andisol Asal Ciater Apong Sandrawati; Teddy Marpaung; Rina Devnita; Yuliati Machfud; Mahfud Arifin
Soilrens Vol 16, No 2 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

ABSTRACT High phosphate (P) retention is a major problem in Andisol that causes low phosphate availability. This study was conducted to determine the effect of various organic matters for pH0, P retention and available P on Andisol obtained from Ciater, West Java. Organic matters used in this experiment consisted of humic acid, straw compost, cow manure, goat manure and chicken manure. This experiment was conducted from April to September 2017 at Soil Physics Laboratory, Faculty of Agriculture, Padjadjaran University. The design used in this experiment was a non Factorial Completely Randomized Design (RAL) with eleven treatments and three replicates. The treatments were control, humic acid (2 ml and 4 ml), straw compost (5% and 10% of the soil weight), cow manure (5% and 10% of the soil weight), goat manure (5% and 10% of the soil weight) and chicken manure (5% and 10% of the soil weight). The result showed that humic acid and various types of organic matter incubated for 3 months decreased pH0 and P retention, improved available P, but decreased pH0 and P retention as well as a negligible increase in available P.Keywords: Andisol, incubation, Humic Acid, pH0, P Retention, available-P

Pengujian Filter Fisik (Slow Sand Filter) Untuk Menurunkan Kadar Pestisida Golongan Organoklorin Siska Rasiska; Aditya Bintan Pratama; Fitri Widiantini
Soilrens Vol 15, No 1 (2017)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Organochlorine pesticide is one of the pesticide that has high persistency and toxic. One of the attempt to degrade organochlorine pesticide using cheaper and easier way is using the slow sand filter technology. The research aimed to test the slow sand filter and to obtain the best filter media combination for degrading organochlorine pesticide. The experiment was conducted at the Laboratory of Pesticide and Toxicology, Laboratory of Plant Protection Biotechnology and Laboratory of Chemical and Soil Fertility, Faculty of Agriculutre, Padjadjaran Univeristy from December 2016 – May 2017. The experimental design used the observative and descriptive design with 8 treatments and repeated twice. P1 (activated carbon and gravel), P2 (sand and gravel), P3 (silica sand and gravel), P4 (activated carbon and zeolite), P5 (sand and zeolite), P6 (silica sand and zeolite), P7 (activated carbon, silica sand and zeolite), P8 (activated carbon, sand and gravel). The result showed that all treatments of slow sand filter were able to degrade organochlorine pesticide and the best filter media combination was from P7 with ability to degrade the pesticide level by 82,86%.Key words: slow sand filter, activated carbon, silica sand, sand, gravel, zeolite

Pembentukan, Karakterisasi Serta Manfaat Asam Humat Terhadap Adsorbsi Logam Berat Firda Firda; Oviyanti Mulyani; Anni Yuniarti
Soilrens Vol 14, No 2 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Soil is a very complex and dynamic system, consisting of the solid, liquid and gas. The solid parts of soil is made from minerals and organic materials (rough and smooth). Organic materials with smooth from is called humic acid. This product is a result from oxidation polimeritation of compounds like phenol, lignin and proteins from plants also from the metabolism of microorganism in the ground. In general, the composition of organic matter is dominated by humin with large, medium and lower of molecular weight. Humic acid has the composition of elements like carbon (40-80%), nitrogen (2-4%), sulfur (1-2%), phospor (0-0,3%) and also oxygen. Humic acid has unique characteristics compared with fulvic acid and humin. One of the most spesific character is the bonding to interact with metal ions, oxide, hydroxide, minerals, organic, and toxic materials.Key words: Adsorbtion, Characterization, Heavy metals, Humic Acid

Aplikasi Pupuk N, P, K dan Konsorsium Pupuk Hayati terhadap Retensi Hara, Serapan, dan Hasil Kedelai (Glycine max (L.)) pada Inceptisol Anni Yuniarti; Yuliati Machfud; Eso Solihin; Yogi Sudirman; Apong Sandrawati
Soilrens Vol 16, No 1 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Inceptisol is a widespread soil order with low fertility. Hence it is necessary to improve its quality status through the application of chemical and biological fertilizers. The main objecttive of this study is to determine the effect of NPK fertilizer and biofertlizer consortia (BC) combinations in Inceptisols towards N and P availability in soil and uptake by soybean (Glycine max L.). Experiments were carried out from April to August 2016 at Ciparanje Experimental Farm, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor, Sumedang at the approximate altitude of 720 meters above the sea level. Randomized Block Design experimental design consisted of ten treatments and three replications was used in this study. Treatments consisted of control (no treatment), Recommended NPK dosage, 0 NPK + 1 BC, ¼ NPK + 1 BC, ½ NPK + 1 BC, ¾ NPK + 1 BC, 1 NPK + 1 BC, ¾ NPK + ¼ BC, ¾ NPK + ½ BC and also ¾ NPK + ¾ BC. Experimental results showed that the combination of NPK fertilizer and soybean-spesific biofertilizer consortium increased soil total phosphate content, nitrogen uptake by plant, and soyben yield significantly. Keywords: Biofertilizer, Soybean, total-N, Uptake of N, Inceptisols

Pengaruh Pupuk Kombinasi Urea – Zeolit - Arang Aktif (UZAA) terhadap pH, Eh, Amonium dan Nitrat pada Tanah Sawah Rancaekek, Kabupaten Bandung Restiana Maulinda; Maya Damayani; Benny Joy
Soilrens Vol 15, No 2 (2017)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Urea is N fertilizer that often used by Indonesian’s famers. Zeolite and activated charcoal is known to be able to increase efficiency Nitrogen from urea fertilizer on paddy soils. This research was conducted to study the urea-zeolite-activated charcoal fertilizer combination for acidity (pH), Redox Potential (Eh) level, slow release NH4+ (ammonium) and NO3-(nitrate) on paddy soils. Experiment was carried out at greenhouse and experimental field, Departement of Soil Science and Land Resources Management, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. The experimental design was Randomized Block Design consisted of five treatments and five replications. The treatments consisted of A (control), B (50% Urea + 25% Zeolite + 25% Activated charcoal), C (50% Urea + 45% Zeolite + 5% Activated charcoal), D (60% Urea + 40% Zeolite) and E (95% Urea + 5% Zeolite). Experimental result showed that the application zeolite and activated charcoal increased the pH and decreasead Eh level. Application of urea-zeolite-activated charcoal fertilizer (50%:45%:5%) is the best for slow release ammonium. This experiment showed that application of Urea-Zeolite-Activated Charcoal (UZAA) fertilizer could reduce the usage of urea fertilizer.Keyword: urea, zeolite, activated charcoal

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rija.sudirja@unpad.ac.id

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