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POTENSI Cyperus kyllingia Endl. UNTUK FITOREMEDIASI TANAH TERCEMAR MERKURI LIMBAH TAMBANG EMAS Sugiono, Cynthia Monica; Nuraini, Yulia; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : Universitas Brawijaya

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Abstract

Small-scale gold mining activities in Sekotong District of West Lombok Regency started in 2009. Gold is recovered through a two-stage process of amalgamation and cyanidation. Tailing is discharged to land with no concern for contaminants. Phytoremediation could cost-effectively replace traditional mercury remediation strategies. The objective of this study was to elucidate the potential of Cyperus kyllingia Endl for phytoremediation of soil contaminated with mercury of gold amalgamation and cyanidation tailings in conjunction with ammonium thiosulphate to phytoextract mercury. The study was conducted at the Laboratory of Soil Brawijaya University and in a shade house located in the area of ​​Dermo, Sengkaling. Samples of tailings-uncontaminated soil were mixed with samples of tailings with the proportion of 30%: 70% (w/w). At harvest shoots and roots were analyzed for mercury concentration in treatments, Tailing (tailings cyanidation and amalgamation), ligand ( 0, 4, and 8 g/kg ). The results showed that Cyperus kyllingia was a potential local species for phytoremediation of mercury contaminated soils as this plant was able to take up mercury of 122,53 mg/kg (shoot) and 77,9 mg/kg (shoot). Based on TF (translocation factor) value that was < 1, it is a potential species for phytostabilization. Addition on 8 g ammonium thiosulphate / kg planting media enhanced mercury taken up by plant as much as 71,18%. Key words: mercury , phytoremediation, ligand
MANFAAT BIOMASA TUMBUHAN LOKAL UNTUK MENINGKATKAN KETERSEDIAAN NITROGEN TANAH DI LAHAN KERING MALANG SELATAN Dewi, Erlisa Karmila; Nuraini, Yulia; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : Universitas Brawijaya

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Abstract

A research that was aimed to study the possible use of Mucuna pruriens, Psophocarpus tetragonolubus, Phaseolus lunatus, Dolichos lablab biomass as sources of local organic matters to improve soil fertility, and growth of maize on a Typic Tropaquent of South Malang. Six treatments, i.e. Mucuna pruriens, Psophocarpus tetragonolubus, Phaseolus lunatus, Dolichos lablab, Urea, and Control (no added legume biomass and fertilizers), were arranged in a Randomized Block Design with three replicates. Results of the study showed that the highest increase of soil N was due to addition of Phaeseolus, followed by Dolichos, Mucuna, and Psophocarpus. Application of Dolichos, Phaseolus, Psophocarpus and Mucuna could substitute 66%, 36%, 30% and 28% of N supplied by urea, respectively. The percentage of N urea recovered by maize was only 23,60%, while Dolichos and Phaseolus treatments resulted in 29,60% and 24,80% N recovery.Key words: plant residue, organic materials, nitrogen revovery
PENGGUNAAN Caladium bicolor, Paspalum conjugatum, dan Comelina nudiflora UNTUK REMEDIASI TANAH TERCEMAR MERKURI (Hg) LIMBAH TAILING TAMBANG EMAS SERTA PENGARUHNYA TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN JAGUNG (Zea mayz L.) Triadriani, Lia Nova; Handayanto, Eko; Utami, Sri Rahayu
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : Universitas Brawijaya

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Abstract

Tailings, waste material from gold processing, contain heavy metals that are toxic such as mercury (Hg). One of the negative impacts is causing contamination of soil, developed through the accumulation of heavy metals. Phytoremediation is an alternative technology, using plant to clean heavy metal contaminated soil. A research, using Caladium bicolor, Paspalum conjugatum and Commelina nudiflora was then conducted as phytoremediation for contaminated soil. The research was conducted in the greenhouse using a randomized block design (RBD) with 3 factors and 3 replications. The first factor was percentage of tailings in the soil (10% and 20%). The second factor was the type of phytoectractor plants (C. bicolor, P. conjugatum and C. nudiflora). The third factor was the use of organic matter (with and without organic matter). The study was conducted in two steps, namely 1) phytoremediation, using C. bicolor, P. conjugatum, and C. nudiflora; 2) evalution of corn growth after phytoremediation. The results showed that Hg content in the soil containing 10% tailings (T1) was twice less than in the soil containing 20% tailings (T2). The addition of organic matter increased the potential for Hg absorption and consequently reduced content of Hg in the soil. C. bicolor, P. conjugatum and C. nudiflora decreased Hg content in the soil, and hence potentially used for phytoremediation. Of the three plants, C. nudiflora showed the highest Hg absorption. Decreasing content of Hg in the soil improved corn growth, as indicated by increasing height, number of leavs and dry weight.Keyword: Mercury (Hg), Hyperacumulator, Phytoremediation
PENGARUH APLIKASI BAHAN ORGANIK SEGAR DAN BIOCHAR TERHADAP KETERSEDIAAN P DALAM TANAH DI LAHAN KERING MALANG SELATAN Tambunan, Sonia; Handayanto, Eko; Siswanto, Bambang
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 1 (2014)
Publisher : Universitas Brawijaya

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Abstract

Some alternatives that can be employed to improve the soil fertility levels in South Malang are the use of fresh organic matter and biochar. The purpose of this study was to determine the effect of fresh organic matter and biochar application on availability of P and maize growth on a calcareous soil of South Malang. The experiment was conducted in a greenhouse and Soil Chemistry Laboratory, Faculty of Agriculture, University of Brawijaya, from March to May 2013. Materials used in this field study were a composite sample of upland calcareous soil at a depth of 0-20 cm, sugarcane litter biochar, maize litter biochar, fresh sugarcane litter, fresh maize litter, and maize seeds. Nine treatments (combinations of two types of biochars each at rates of 0 and 20 t/ha, and two types of fresh litter each at rates of 0 and 40 t/ha) biochar) were arranged in a completely radnomized design wirh three replicates. Maize seeds were grown on each treatment for 49 days. Results of this study showed that:(1) application of 20 t maize litter biochar / ha and 40 t maize litter/ha considerably increased soil available P by increase the 243%; (2) application of 20 maize litter biochar/ha with no application of maize litter reduced pH and exchangeable Ca by 14.47% and 27.19%, respectively; and (3) applicationof 20 t maize litter biochar /ha and 40 t maize litter / ha increased CEC by 10.40%.Key words: biochar, calcareous, available of P
FITOREMEDIASI TANAH TERCEMAR MERKURI MENGGUNAKAN Lindernia crustacea, Digitaria radicosaa, DAN Cyperus rotundus SERTA PENGARUHNYA TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN JAGUNG Siahaan, Bonauli Christianoyd; Utami, Sri Rahayu; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 1, No 2 (2014)
Publisher : Universitas Brawijaya

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Abstract

Levels of heavy metals in agricultural land can be reduced and neutralized with an inexpensive method, known as phytoremediation. The purpose of this study was to learn and know the ability Lindernia crustaceans, Digitaria radicosa, and Cyperus rotundus as fitoremediator for soil contaminated by gold mining waste containing mercury and its effects on growth and yield of maize The study was conducted in a glasshouse with sixteen treatments consisted of three plant accumulators, two soils contaminated with mercury, and two levels of organic matter application. The parameters measured were plant height, number of leaves, dry weight, crop N uptake,  Hg content, and uptake of Hg. The results showed that 10% of tailings contaminated soil (T1) contained Hg less than 20% of tailings contaminated soil (T2). The addition of organic material could assist in providing the nutrients needed by plants to improve soil fertility, so the potential for increased uptake and could reduce the content of Hg in tailing contaminated soil. Lindernia crustacea, Digitaria radicosa, and Cyperus rotundus are potential in reducing mercury concentration in tailing contaminated soils that in turn improved maize growth.
Potential Nitrification and Nitrogen Mineral of Soil in Coffee Agroforestry System with Various Shading Trees ., Purwanto; Handayanto, Eko; Suprayogo, Didik; Bako Baon, John; Hairiah, Kurniatun
Pelita Perkebunan (Coffee and Cocoa Research Journal) Vol 23, No 1 (2007)
Publisher : Indonesian Coffee and Cocoa Research Institute

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Abstract

The role of shading trees in coffee farms has been well understood to establish suitable condition for the growth of coffee trees, on the other hand their role in nitrogen cycle in coffee farming is not yet well understood. The objectives of this study are to investigate the influence of various legume shading trees on the concentration of soil mineral N (N-NH4 + and N-NO3-), potential nitrification and to study the controlling factors of nitrification under field conditions. This field explorative research was carried out in Sumberjaya, West Lampung. Twelve observation plots covered four land use systems (LUS), i.e. 1) Coffee agroforestry with Gliricidiasepium as shade trees; 2) Coffee agroforestry with Gliricidiaas shade trees and Arachis pintoias cover crops; 3)Coffee agroforestry with Paraserianthes falcataria as shade trees; and 4) Mixed/multistrata coffee agroforestry with Gliricidiaand other fruit crops as shade trees. Measurements of soil mineral-N concentration were carried out every three weeks for three months. Results showed that shade tree species in coffee agroforestry significantly affected concentrations of soil NH4 +, NO3- and potential nitrification. Mixed coffee agroforestry had the highest NH4+/N-mineral ratio (7.16%) and the lowest potential nitrification (0.13 mg NO2-kg-1 hour -1 ) compared to other coffee agroforestry systems using single species of leguminous shade trees. Ratio of NH4 + /N-mineral increased 0.8—21% while potential nitrification decreased 55—79% in mixed coffee agroforestry compared to coffee agroforestry with Gliricidia or P. falcatariaas shade trees. Coffee agroforestry with P. falcatariaas shade trees had potential nitrification 53% lower and ratio of NH4 + /N-mineral concentration 20% higher than that with Gliricidia. Coffee agroforestry with P. falcataria as shade trees also had organic C content 17% higher, total N 40% higher, available P 112% higher than that with Gliricidia. The presence of A. pintoiin coffee agroforestry with Gliricidiareduced 56% potential nitrification but increased 19.3% of NH4+/N-mineral concentration. The low soil potential nitrification in the mixed coffee agroforestry had close relationship with the high content of soil organic matter. Key words : Nitrogen-mineral, nitrification, shading trees, agroforestry, Coffea canephora, nitrate, organic matter, intercropping,Gliricidia sepium, Arachis pintoi, Paraserianthes falcataria.
PEMANFAATAN TUMBUHAN LIAR Lindernia crustacea DALAM FITOREMEDIASI TANAH TERCEMAR MERKURI LIMBAH TAMBANG EMAS SKALA KECIL Pratiwi, Riezka Setya; Nuraini, Yulia; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 3, No 1 (2016)
Publisher : Universitas Brawijaya

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Abstract

Gold processing tailings in small-scale gold mine in the form of sludge that still contain Hg and various other metal elements are commonly discharged in agricultural land and water bodies. The discharge of the tailings at Sekotong of West has inhibited growth and yield of maize in the area. The purpose of this study was to explore the potential of Lindernia crustacea for phytoremediation of soil contaminated with small-scale gold mine tailings containing mercury. Lindernia crustacea was grown on the mixture of top soil and (70% weight) and 30% (by weight) of amalgamation or cyanidation tailings for 8 weeks. To enhance uptake of mercury, ammonium thiosulphate was added with doses of 4 and 8 g kg-1 to the planting media when the plant reached 6 weeks old. The results showed that the addition of 4 g and 8 g ammonium thiosulphate increased the accumulation of Hg in the plant shoot by 61% and 27 %, respective, compared to the treatment without addition of ligand. The addition of 4 g and 8 g ammonium thiosulphate also increased 15% and 11% accumulation of Hg, respectively, in the plant root compared to the treatment without addition of ligand. Based on BCF, BAF and TR values, it was known that with or without addition of ammonium thiosulphate, Lindernia crustacean is suitable for use in pytostabilization activities
POTENSI TIGA VARIETAS TANAMAN SAWI SEBAGAI AKUMULATOR MERKURI PADA TANAH Junyo, Gema; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 4, No 1 (2017)
Publisher : Universitas Brawijaya

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Abstract

Mercury is one of heavy metals that is highly dangerous as it affects human health when it pollutes soils used for growing plants. The purpose of this study was to examine the potential of Brassica oleracea, Brassica rapa, and Brassica juncea in reducing levels of mercury in mercury-contaminated soil. Each of the three plant species was grown on a 3 kg of soil in a polybag which first contaminated with four concentrations of mercury (0 ppm, 0.5 ppm, 1 ppm, and 1.5 ppm ). The results showed that Brassica rapa accumulated mercury better then Brassica oleracea and Brassica juncea. On the soil contaminated with the lowest mercury concentration (0.5 ppm ), Brassica rapa root was able to absorb 0,081 ppm of mercury, at the concentration of 1 ppm, Brassica rapa root was able to absorb 0,091 ppm of mercury, while at the highest mercury concentration (1.5 ppm), Brassica rapa root was able to absorb 0,311 ppm. The ability of Brassica juncea roots to absorb mercury were better than those of Brassica rapa and Brassica oleracea.
DEKOMPOSISI KULIT KOPI OLEH BAKTERI SELULOLITIK YANG DIISOLASI DARI TIMBUNAN KULIT KOPI DI PERKEBUNAN KALIBENDO, JAWA TIMUR Nurfitriani, Siska; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 4, No 2 (2017)
Publisher : University of Brawijaya

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Abstract

Composting of coffee pulp takes a long time in PT.Perusahaan Perkebunan Kalibendo. To speed up the composting time from coffee pulp, a study that was aimed to isolate cellulolytic bacteria with the ability to decompose coffee pulp pulp was conducted at Soil Bology Laboratory, Faculty of Agriculture, Brawijaya University This study consisted of two phases, i.e. isolation and selection of cellulolytic bacteria originated from compost coffee pulp, and application of the selected bacteria onto the coffee pulp. Treatments tested in the secinda phase of this study were K0 (control or without the addition of isolates), K1 (with the addition of isolate SL 1), K2 (with the addition of isolate SL 2), K3 (with the addition of isolate SL 3) and K4 (with the addition of bacterial consortium). The treatments were arranged in a completely randomized design with three replicates. Parameters observed were decomposition rate, cellulose content, pH, C organic content, total N content, and physicals condition of the produced coffe pulp compost. Results of this study indicated that isolated bacteria obtained ware able to produce cellulase enzymes that could be seen from the presence of clear zone around bacterial colonies grown on Carboxymethyl Cellulose (CMC) agar medium. Three of eight isolated cellulolytic bacteria (SL1, SL2, and SL3) were capable of forming biggest clear zone on CMC medium with an average index of cellulolitic of 1.53. Bacterial isolates originated from coffee pulp compost were capable of decomposing coffee pulp. The bacteria consortium treatment (K4) was capable of decomposing coffee pulp faster than other treatments with the decomposition rate of 2.13 g/day
PENGARUH KOMBINASI BIOCHAR DAN SISA TANAMAN LEGUM TERHADAP KETERSEDIAAN N DAN P TANAH SERTA EMISI CO2 PADA LAHAN KERING Ningtyas, Wahyu; Nuraini, Yulia; Handayanto, Eko
Jurnal Tanah dan Sumberdaya Lahan Vol 2, No 1 (2015)
Publisher : Universitas Brawijaya

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Abstract

A research that was aimed to study the effect of the combination of biological charcoal (biochar) and a biomass plant Mucuna pruriens, Psophocarpus tetragonolubus, Phaseolus lunatus, Dolichos lablab the availability of N, P availability and release of CO2 from the decomposition. The research was conducted in the laboratory of Biology, Faculty of Agriculture, University of Brawijaya, Malang. Research began in October 2014 and February 2015. Materials used are fresh biomass, soil and biochar. Fresh biomass of four species of wild plants Mucuna pruriens (MP), Psophocarpus tetragonolubus (PT), Phaseolus lunatus (PL) and Dolichos lablab (DL], biochar rice hulls, bottles 100 mL plastic tube the size of 3 mL and 5 mL tube size. Observations of soil N and available P were conducted at weeks 1, 2, 4, 6, and 8. The results indicated that the combination treatment of 75 MP + 25 AH (Mucuna pruriens 3,75 t ha-1 and 1.25 t biochar ha-1) had the highest value for ammonium in (8 MSI) that was  equal to 143 mg kg-1. The highest average against ammonium was 100 PT + 0AH treatment that hada value of 79.17 mg kg-1  The treatment that had the highest value for nitrate in (8 MSI) was the treatment of 50 PL + 50 AH 236.67 mg kg-1. The treatment having the highest average for nitrate was 75 PT + 25AH of 206 mg kg-1. Combination treatment of 5 t Psophocarpus tetragolubus / ha and 0 t biochar ha-1 (100 PT + 0 AH) had the highest value of available P of 63.64 mg kg-1. The treatment having the highest average value of 75 PL + 25 AH  was 33.45 mg kg-1. The average value of the highest CO2 evolution (1.54 mg CO2 week-1) was in the treatment of 50DL + 50 AH (Dolichos lablab 2,5 t ha-1 and 2,5 t Biochar ha-1).