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Study of Arbuscular Mycorrhizal Fungi status at Rehabilitation Post-Nickel Mining Area (Case study at PT INCO Tbk. Sorowako, South Sulawesi) Yadi Setiadi; Arif Setiawan
Jurnal Silvikultur Tropika Vol. 2 No. 2 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.2.%p

PT INCO Tbk. is one of the biggest nickel mining company in the Asia-Pasific region and has been operated commercially in Indonesia since 1978. It is located at Sorowako, South Sulawesi Indonesia with the area up to 218.000 hectares. The mining operation process is surface mining. It eliminated the existing vegetation, and it will lead to soil erosion, loss of biodiversity, damage of wildlife habitats and degradation of watershed area, considering with these negative impacts a revegetation programme is fully needed (Setiadi 1995). Revegetation that has been done obstacled by the marginal land conditions where soil structure has been damaged and it has became a lateritic soil. It absorbs elements of phosphate (P), which is essential for plant life. It will be poor of P-available that can be absorbed by plants. Therefore input for more effective technology and environmentally friendly is needed, among others by applying a bio-technology Arbuscular Mycorrhizal Fungi biofertilizer (AMF). It has some functions, one of them is increasing nutrients absorption, especially P. Therefore, research on the existence of mycorrhizal status needs to be done as an introduction for research and application of mycorrhizal in the rehabilitation field of post- nickel mining.

The Respons on Growth of Acacia mangium Willd. by Using Dolomit and HSC (Humic Substances Complex) on Ex Coal Mineland RESPON PERTUMBUHAN Acacia mangium WILLD. TERHADAP PENAMBAHAN KAPUR DAN HSC (HUMIC SUBSTANCES COMPLEX) PADA LAHAN PASCA TAMBANG BATUBARA Nuri Jelma Megawati; Basuki Wasis; Yadi Setiadi
Jurnal Silvikultur Tropika Vol. 5 No. 3 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.3.%p

The success rate of revegetation on ex-coal mineland is low. It is caused by the characteristic of soil that can’t support the plant growth. The objective of this research were to study the characteristic of soil in various type of A. mangium growth condition as well as the efforts for soil amandement with dolomit and Humic Substances Complex to improve soil condition and A. mangium growth on ex-coal mineland. Soil analysis was conducted in three condition of A. mangium growth. Those are normal, moderate and low. This research was conducted in the low growth of A. mangium with two factor (dolomit and Humic Substances Complex) and 16 repetition. Design research was Split Block Design. The Result showed that normal growth of A. mangium has been supported by physical, chemical and biological soil condition. The main factor of moderate and low growth of A. mangium were low pH and high Al soluble. Combination treatment dolomit and HSC have given significant influence on height of A. mangium on 3rd location. Dolomit treatment on A. mangium has given significant influence on height of A. mangium on all location. HSC treatment isn’t yet significant influence ongrowing A. mangium.Keywords : A. mangium, dolomit, ex-coal mineland, HSC, soil analysis

The Physical and Cehmical Soil Properties on Heath Forest and Ex-Tin Mined Land in East Belitung District SIFAT FISIKA DAN KIMIA TANAH DI HUTAN KERANGAS DAN LAHAN PASCA TAMBANG TIMAH KABUPATEN BELITUNG TIMUR Dina Oktavia; Yadi Setiadi; Iwan Hilwan
Jurnal Silvikultur Tropika Vol. 5 No. 3 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.3.%p

The degradation of heath forest that caused by tin mining activity effected some environmental problems such as erotion, sedimentation and lose biodiversity. Restoration is become a way to recocover the ecosystem functions. Information about soil physical and chemical properties is needed for land restoration. Soil samples were collected by cluster sampling method in heath forest and two ages succession of ex-tin mineland (less than a hundred years and more than a hundred years). Study results showed that the soils generally were low Cation Exchange Capacity (CEC), organic matter, total nitrogen, available P, macro nutrient and clay content in soil texture. However in ex-tin mineland more than a hundred years, there is a trend of increasing of clay content also some soil parameters. Natural succession supported soil development even it take a very long of time. Restoration on these soil conditions should augmented the organic matter to repare the texture and make up the CEC by applying Legume Cover Crop (LCC) and Seed Soil Augmentation (SSA) technique.Keywords : heath forest, restoration, soil properties, SSA, tin mining.

Selection of Plants Species Adaptation in Petroleum Contaminated Soil Seleksi Adaptasi Jenis Tanaman pada Tanah Tercemar Minyak Bumi Yadi Setiadi; Fadliah Salim; Yahdiyani Silmi
Jurnal Silvikultur Tropika Vol. 5 No. 3 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.3.%p

The soil contaminated by Petroleum from oil operation contents Total Petroleum Hydrocarbon (TPH). Phytoremediation is the use of plant potential to reduce the level of TPH in the soil. We should select the appropriate plants species before starting phytoremediation activity. The aims of this study was to select the adaptability of the fourth plants species (Sorghum bicolor, Pueraria javanica, Tagetes erecta and Paspalum conjugatum); characterize their growth performance at the contaminated soil and investigate the most adaptive plant for phytoremediation activity. They were grown in the petroleum contaminated soil with the concentrations of TPH 1.41%, 4.69%, 8.15% and the control was 0.43%. The parameters measured were the plant length, the number of leaf, leaf color, root length, root performance and total dry weight. The result shown, fourth plants species adaptived in all TPH concentration. However, the growth decreased in the soil with the TPH concentration 8.15%.Keywords: adaptation test, petroleum, plant performance, total petroleum hydrocarbon

Early Detection of Aluminum Toxicity on Bridelia monoica Merr. to Post Coal Mined Land in PT. Jorong Barutama Greston, South Kalimantan DETEKSI DINI KERACUNAN ALUMINIUM TANAMAN Bridelia monoica Merr. PADA TANAH PASCA TAMBANG BATU BARA PT. JORONG BARUTAMA Yadi Setiadi; Fiona Citra Anira
Jurnal Silvikultur Tropika Vol. 6 No. 2 (2015): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.6.2.%p

High solubility of Aluminium (Al) and toxic on post coal mined land cause low level of growth plant. Soil analysisused to ensure toxic level, thus the plant growth failure can be minimized. On the other hand, soil analysis is timeconsuming and costly. A simple and effective method to detect the existence of Al in the soil is needed. Bridelia monoicais a dominant pioneer tree which grow around mine location. This plant can survive on the dry land with low fertility, hasmany utility and easily found around mining area. It is expected that B. monoica can be used as biologic indicator of Altoxicity. The aim of this research was to determine the B. monoica response to Al toxicity on the post coal mined land atPT. Jorong Barutama Greston. This research conducted at four different colours of soil (three colours from post coalmined and original soil as control) with three replication. The data observed were root length, shape of root, amount ofleaf, leaf colour, and dry weight. This research resulted Al toxicity can decrease root length, amount of leaf, and dryweight, and changing the root shape on B. monoica. The research concluded B. monoica can be used as biologicindicator of Al toxicity.Key words: Aluminium, Bridelia monoica, post coal mined soil

The Growth Response of Gmelina arborea Roxb. by Growth Stimulant at Nursery Permanen Dramaga IPB RESPON PERTUMBUHAN BIBIT Gmelina arborea ROXB TERHADAP PENAMBAHAN Growth Stimulant DI PERSEMAIAN PERMANEN IPB Arif Irwansyah; Yadi Setiadi; Basuki Wasis; Noor Faiqoh Mardatin
Jurnal Silvikultur Tropika Vol. 7 No. 2 (2016): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.7.2.%p

The objective of this research was to study the growth response of G. arborea seedling with growth stimulant at nursery seedling area. Three months of age seedlings were selected and used. The research was conducted three concentrations of BioNature-50 in completely randomized design with 3 replications.. The best results for G. arborea was reached on GSA-1 (1,21 liter BioNature-50 dissolved into 15 liter water). The parameter on plant such as height, stem diameter, and shoot root ratio were significantly affected.Key words: BioNature-50, concentration

Adaptability Trial of Paspalum conjugatum Berg, Setaria splendida Stapf and Vetiveria zizanoides (L.) Nash on Aluminum Toxicity UJI ADAPTABILITAS Paspalum conjugatum Berg, Setaria splendida Stapf, DAN Vetiveria zizanoides (L.) Nash PADA TOKSISITAS .... Jenny Rumondang; Yadi Setiadi; Iwan Hilwan
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.7.3.211-216

Quartz sand mining operated by PT Holcim creates the soil minerals such as aluminum (Al). Setiadi (2012) explained that Al > 3 me/100 g soil is a toxic. Problem safter mining operational PT Holcim Tbk are: 1) Al toxicity. 2) soil compaction; 3) Ca < Mg which lead to stagnant growth. The presence of Al affected root growth, signed by swelling and browning root. Reducing Al concentration needs expensive cost. Thus, other biological alternatives which more effective and cost less are needed.This research objective was to observe plant growth at media which consist of Al toxicity. Using of Paspalum conjugatum, Setaria splendida, and Vetiveria zizanoides where use as plant indicator. The treatment were concentration of micro lime and humic substances complex. The experiment conducted at factorial design.. The resulted shows performances of three grass species planted in tailing soil gave varied result. P. conjugatum was more sensitive to Al than two others, where as S. splendida and V. zizanoides were more adaptive to Al. S. splendida can reduced Al until 61.23% and combination V. zizanoides with lolime 3g/L + HSC 2.5% can reduced Al 60.03%. V. zizanoidesis and S. splendida were potential for phytoremediation (plant which can reduce toxicity in soil).Key words: Alumunium, P. conjugatum, S. splendida, V. zizanoides

GROWTH IMPROVEMENT OF Rhizophora mucronata Lamk WITH LATERAL ROOT MANIPULATION TECHNIQUE (LRM) IN MUARA ANGKE, NORTH JAKARTA Cecep Kusmana; Ageng Nurtya; Yadi Setiadi
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.7.3.S15-S18

Mangrove has a strategic functions as a primer producer that able to support the stability between aquatic and terrestrial ecosystems. The damage mangrove plants needs an intense handling to avoid the destruction of mangrove ecosystem. It requires an environmental modification to increase growth quality of mangrove, one of various techniques that can be applied is lateral root manipulation (LRM). This study was aimed to examine the growth response of Rhizophora mucronata seedlings toward the frequency of fertilization by terabuster polymer fertilizer, and addition by rock phosphate and HSC (humate substance complex) fertilizer. Our treatments on this study were different frequency of flushing by 0.5% terabuster polymer fertilizer combined with addition of 500 g rock phosphate, and 0.2% HSC, by using two factorial experiment design on randomized complete block design. The application of LRM combined by addition of rock phosphate and HSC which is flushed by terabuster polymer give a significant effect to the height and stem diameter seedlings. The result of interaction between the treatment fertilization addition and flushing frequency shows that RHF1 (mixed rock phosphate and HSC with flushed by terabuster in a frequency one time in a week) give a significant effect to the stem diameter of seedlings with average growth as large as 0.61 cm (about 254.02% compared to control).Key words: heigth growth, humat substance complex, lateral root manipulation, Rhizophora mucronata Lamk., rock phosphate, stem diameter growth, terabuster.

RESPON PERTUMBUHAN BIBIT ANGSANA (Pterocarpus indicus Willd.) TERHADAP MEDIA TUMBUH, PEMOTONGAN AKAR LATERAL DAN PEMBERIAN URIN SAPI Response of Angsana (Pterocarpus indicus Willd.) Seedling on Growing Media, Lateral Roots Cutting, and Cow’s Urine Hariadi Saputra; Yadi Setiadi; Iwan Hilwan
Jurnal Silvikultur Tropika Vol. 8 No. 3 (2017): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.8.3.154-159

Nursery is a process in producing good quality seedlings. Seedling quality is determined by physical-physiological quality including woody stem, health, height, diameter, number of leaves, leaf color and compactness of media. The quality of angsana seedlings in this study was observed using some growth media, lateral root cutting, and cow’s urine addition with various concentration and liquid organic fertilizer for 13 weeks. The study was conducted in a completely randomized design (CRD) in split plot with 3 growth mediums, 10 combinations of root-cutting and fertilizing treatment using 9 seedlings per treatment. Parameters observed during this study were seedling height (cm), seedling diameter (mm), total dry weight (g), shoot - root ratio (RPA) and compactness of roots. The results showed the media contain mixture of soil and manure (M2) with root-cutting treatment, addition of 20% cow urine and 5% EM4 (A2) was the best treatment for angsana seedlings with average value of 46.25 cm plant height, 6.09 mm diameter, 7.77 g total dry weight, shoot root ratio 1.89 and compactness of roots including the compact category.Key word : cow’s urine, lateral roots cutting, Pterocarpus indicus Willd., seedling quality.

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