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All Journal Jurnal Penelitian Saintek Agrikultura Bionatura Journal of Tropical Soils Value Added : Majalah Ekonomi dan Bisnis IJOG : Indonesian Journal on Geoscience Agrovigor: Jurnal Agroekoteknologi Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Journal of Degraded and Mining Lands Management Jurnal Agroekoteknologi Jurnal Agroteknos Jurnal Agro Kultivasi Business and Finance Journal Agroekoteknologi Tropika Lembab Soil REns Media Agribisnis Jurnal Tanah dan Iklim Indonesian Journal on Geoscience Indonesian Journal on Geoscience

Mahfud Arifin

Departemen Ilmu Tanah Dan Sumber Daya Lahan Fakultas Pertanian Universitas Padjadjaran

Author-ID : 232664

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Public Health Social Sciences

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Hubungan Karakteristik Topografi dengan Sifat-Sifat Fisika Tanah Studi Kasus: Sub DAS Citarik, DAS Citarum Hulu Ade Setiawan; Mahfud Arifin; Rachmat Harryanto; Apong Sandrawati
Soilrens Vol 16, No 1 (2018)
Publisher : Fakultas Pertanian Universitas Padjadjaran

The proper understanding about spatial soil diversity is very important to simulate environmental model and to manage land resources in the landscape scale. Information of soil diversity is also noteworthy for environmental academics, forestry, civil engineering, and land use planner. Until now, most of the soil information are derived from conventional soil maps which are lack of detailed information. This condition can increase the uncertainty of model output and can also be an obstacle to the future development of spatial distribution model. According to this situation, the research was conducted in Sub Watershed of Cikeruh, Citarik, and Citarum Hulu. These areas are located in the 6o53’00”S - 6o53’15” S and 107o45’21”E - 107o45’55”E at 780-1800 m asl, The rainfall is classified as type C according to the Schmidt and Fergusson classification with mean rainfall around 1795.66 mm per year. The soils in the research areas are classified as Inceptisols. The research aims to analyze and elucidate the relation between topographic characteristics and soil physical properties. Some parameters studied in this research are elevation, aspect, plan curvature, profile curvature, topographic wetness index (TWI), topographic position index (TPI), and some soil physical properties, such as soil texture (clay, silt, and sand), soil organic carbon, soil bulk density, soil available water capacity, soil porosity and permeability. The results showed that all topographic parameters were related to one or some soil physical properties, except aspect and slope. Topographic variables that are frequently related to soil properties are TPI and TWI. Keywords: topographic characteristics, elevation, aspect, curvature, TWI, TPI, soil physical properties

Analisa Kualitas Tanah Pada Berbagai Penggunaan Lahan di Sub Sub DAS Cimanuk Hulu Nurina Hanum Ayuningtias; Mahfud Arifin; Maya Damayani
Soilrens Vol 14, No 2 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Soil quality test is needed to find out the influence of landuse change due to soil quality dan characteristics. This research aims to comparing various land use that influence the physical, chemical and biological soil on Andisol and Inceptisol, obtain information of soil quality at various land uses on Andisol and Inceptisol, and study the relationship between soil quality and erosion at various land use The study was conducted in Sub Sub watershed Hulu Cimanuk with an area of 16.171 hectares. The study was conducted on four different types of land use namely forest land, agriculture land, tea garden and mixed garden. The study was conducted with survey methods, descriptive and comparative. Erosion calculation using the RUSLE formula.Analysis of soil quality is calculated based on criteria Mausbach & Seybold (1998) and modified in accordance with the conditions of the study area. The results showed that each land use has a different effect on soils quality nor with erosion. Soil quality on forest land has higher value than other land use and erosion that occurs most low at 0.2 tonnes / ha / year. The use of dry land has the lowest value of soil erosion begitupula highest of 387 tonnes / ha / year.Key words: erosion, landuse change, soil quality, and watershed.

Kajian Mineral Fraksi Pasir pada Andisol yang Berkembang dari Hasil Erupsi Gunung Tangkuban Parahu dan Gunung Patuha, Jawa Barat Rina Devnita; Mahfud Arifin; Ridha Hudaya
Soilrens Vol 14, No 2 (2016)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Mineral content of the soil determines various properties including nutrient that can bereleased during the weathering process. The research to identify the minerals in Andisol developedfrom the eruption of Mt. Tangkuban Parahu and Mt. Patuha had been conducted to determine theminerals content in the sand fraction. This research was conducted in several steps: the field survey,soil sampling, and laboratory analysis. The field locations were in the forest of Cikole, Lembang,West Java derived from the eruption Mt. Tangkuban Parahu and in the forest of Patengan,Rancabali, West Java derived from the eruption of Mt. Patuha. Sand fraction was separated from siltand clay by wet sieving method, using the 50 micron siever. Microscopic observation for identifyingthe minerals was done with polarization microscope to the color, luster, shape of grains and crystals,cleavage, hardness, transparency, translucent, and magnetic properties. The results showed that thesand fraction of Andisol derived from Mt. Tangkuban Parahu and Mt. Patuha had the mineralcontent as hypersthene, diopside, orthoclase, oligoclase, anorthite, andesine, hornblende, biotite,quartz, corundum, magnetite dan sulphur, showed that the weathering those minerals cancontribute some nutrients like Mg, Ca, K Fe, and S to the soilKey words: hyperstene, diopside, anorthite, hornblende, biotite

Utilization of Steel Slag in Agriculture (Review) Rina Devnita; Apong Sandrawati; Mahfud Arifin
Soilrens Vol 19, No 1 (2021)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v19i1.35090

The process of refining iron by Blast Furnace (BF) or Electric Arc Furnace (EAF) produces steel and by-product: steel slag. This by-product can be used for various fields such as construction, industry and agriculture. This paper aimed to discuss the use of steel slag in agriculture as fertilizer, lime and ameliorant in the soils. The content of elements and compounds in steel slag is the basic component for the utilization of this material, therefore they are displayed quite completely. The presence of other contents like of heavy metals which are classified as hazardous toxic materials is also stated. Utilization of steel slag for agriculture has been carried out widely in various countries such as Japan, Germany and the United States. There have been many studies of steel slag in Indonesia that prove the benefits of steel slag in adding nutrients and improving soil reactions. However, the use of this material is still limited to research field, has not been widely used. Meanwhile, many research has proven that steel slag can improve some chemical characteristics like pH and CEC, as well improve Ca, Mg and Si content. Steel slag can release P from retention and fixation and Andisols and Ultisols. Research showed that steel slag improved the yield of rice, maize, horticultural and industrial plants.

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

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

Karakterisasi dan Klasifikasi Ultisols Yang Berkembang dari Dua Bahan Induk di Kabupaten Serang, Provinsi Banten Mahfud Arifin; Ganjar Herdiansyah; Apong Sandrawati; Rina Devnita
Soilrens Vol 19, No 2 (2021)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v19i2.38362

The effort to utilize the soils optimally, especially Ultisols, requires an appropriate understanding related to their characteristics. The characteristics of Ultisols are sturdily influenced by soil-forming factors, viz. climate, parent material, pedogenic age and topography. The purposes of this study were to determine the chemical, physical, mineralogical characteristics and soil development classification level of Ultisol from two different types of parent rock. This research was conducted in Kampungbaru Village, Petir District and Sukalaksana Village, Curug District, in Serang Regency, Banten Province. These two villages represented different parent materials, namely andesite lava parent material of Holocene age (Kampungbaru Village) and tuff dacite parent material of early Pleistocene age (Sukalaksana Village). The research method was descriptive, comparative and survey. Soil classification was based on the Soil Survey Staff. The results showed that Ultisols developed from dacite tuff and andesite lava did not show contrasting differences in soil properties. The level of weathering of the two pedons was at the senile stage and the level of soil development of the two pedons was at the argillic stage. The soil classification of Kampungbaru pedon was Typic Palehumults, very fine, kaolinitic, isohyperthermic, while the Sukalaksana pedons was Arenic Paleudults, fine, kaolinitic, isohyperthermic

Investigation of Heavy Metal Cd, Pb and Cr in Andisols as Affected by the Amelioration of Steel Slag and Rice Husk Bokashi Rina Devnita; Mahfud Arifin; Apong Sandrawati; Rija Sudirja
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.v18i1.29040

The application of steel slag and bokashi of husk in Andisols has been acknowledge to decrease P-retention and increase available P. However, steel slag contains heavy metals that may harm soils. The objective of this research was to find out the effect of amelioration steel slag and bokashi of husk in Andisols on the heavy metals contents (Cd, Pb and Cr) in the soil. The treatments were arranged in randomized block designed in factorial pattern with two factors: steel slag and bokashi of husk, each consisted of four level: 0, 2.5, 5.0 and 7.5 % in 10 kg soil weight (w/w), thus the total was 16 combined treatments and repeated three times. The treatments were incubated for four months and then the P-retention, available P, Cd, Pb and Cr contents in the soil were analyzed. The results showed that steel slag and bokashi of husk interacted in decreasing 6.67% of P-retention and increasing 60 ppm of available P. This research also informed that Cd, Pb and Cr contents in the soil after the treatments were still lower than the critical value that were permitted.

Pedogenesis Dan Klasifikasi Tanah Yang Berkembang Dari Dua Formasi Geologi Dan Umur Bahan Erupsi Gunung Tangkuban Perahu Mahfud Arifin; Rina Devnita; Ridha Hudaya; Apong Sandrawati; Daud Siliwangi Saribun; Rachmat Harryanto; Ganjar Herdiansyah
Soilrens Vol 15, No 1 (2017)
Publisher : Fakultas Pertanian Universitas Padjadjaran

The efforts to utilize the agricultural land need a proper understanding of the soil characteristics. The soil characteristics themselves are influenced by the factors that regulate and control the soil forming and pedogenesis processes. The main soil forming factors in this study was the different ages and composition of parent materials from the eruption of Mt. Tangkuban Parahu in West Java. This research was done to comprehend the pedogenesis and to figure out the soil classifications that developed in two geological formations (Qyd and Qvu) and two ages of eruption (Holocene and Pleistocene) of Mt. Tangkuban Parahu. The study was conducted in Ciater, Subang Regency and Jatinangor, Sumedang Regency in West Java Province. The study consisted of four stages: preparation, field survey and soil sampling, laboratory analysis and presenting the report. The results showed that Pedon of Jatinangor consisted of three different stratifications of ages. The clay mineralogical composition was dominated by kaolinite, whereas mineralogical composition of the sandy fractions (heavy fractions) was augite-hypersthene. Pedon of Ciater also consists of three different stratifications of age. The clay mineralogical composition was dominated by allophane, while mineralogical compositions of the sandy fractions (heavy fractions) were green amphibole-hypersthene in the overlying horizons and amphibole-augite in the underlying horizons. The stage of soil formation on both pedon were cambic or viril. The soil classification according to Soil Taxonomy were Acrudoxic Durudands, medial over loamy-skeletal, isohyperthermic in Ciater Pedon and Fluventic Eutrudepts, fine, kaolinitic, isohyperthermic in Jatinangor Pedon.Key words: slow sand filter, activated carbon, silica sand, sand, gravel, zeolite

Co-Authors A. Leonardo, Patrick Abraham Suriadikusumah Ade Setiawan Ade Setiawan Aisyah, Ayu Siti AKTAVIA HERAWATI Anindita, Sastrika Anne Yuliana Anni Yuniarti Apong Sandrawati Apong Sandrawati Apong Sandrawati Ari Ganjar Herdiansah Asep Purnama Hidayat Bambang Syairudin, Bambang Benny Joy Benny Joy Darsiti, Tita Daud Siliwangi Saribun Dedi Widayat Dewi Dahliani Diyan Herdiyantoro Emma Trinurani Sofyan Fahmi Aprianto, Fahmi Fajri Syahid Nurhakim Ferdy Firmansyah Ferina Rosiana Fetty Rahmayanti Fuad Achmadi Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah Ganjar Herdiansyah, Ganjar Hasbullah Syaf Herman Soeriaatmadja Iin Handayani Iin Susilawati Indra Permana Jajang Sauman Hamdani Kaffah, Ruhnayati Mauludy, Noor Muhammad Maya Damayani Maya Damayani Mieke Rochimi Setiawati Muhammad Amir Solihin Muhammad Amir Solihin Nenny Nurlaeny Novarina Darmawan Putri Nur Azizah Nurina Hanum Ayuningtias Oktaviani, Nurrani Pradhinto Dwi Nugroho Pujawati Suryatmana Putri, Noviani Rachmat Harryanto Ramadhan, Ilmi Reginawanti Hindersah Ridha Hudaya Ridha Hudaya Ridha Hudaya Ridha Hudaya Ridha Hudaya Rija Sudirja Rina Devnita Rina Devnita Rina Devnita Rina Devnita Rina Devnita Rudi Priyadi Sandrawati, Apong Santi Rosniawaty Siswanto, Shantosa Yudha Solihin, Muhammad Amir Sumbada, Rifyal Achmad Rivaldi Sunarya, Yaya - Teddy Marpaung Tien Turmuktini Tualar Simarmata Tualar Simarmata Umami JM, Agnes Iko Umar Dani, Umar Yayan Sumekar Yuliati Machfud Yuyun Yuwariah

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