Hartono, Arif
Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB, Jalan Meranti, Kampus IPB Darmaga 16680

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Fraksi Fosfor Tanah pada Lapisan Olah dan Korelasinya dengan Beberapa Sifat Kimia Tanah Hutan dan Perkebunan Kelapa Sawit di Jambi Desy Djata; Arief Hartono; Syaiful Anwar; Budi Nugroho
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 10 No. 2 (2020): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.10.2.209-219

Abstract

Perubahan penggunaan lahan hutan menjadi perkebunan kelapa sawit diduga mengubah distribusi fraksi fosfor (P) tanah. Penelitian ini bertujuan untuk mengevaluasi fraksi P pada lapisan permukaan tanah di lahan hutan dan perkebunan kelapa sawit di Jambi, serta korelasinya dengan sifat kimia tanah. Sampel tanah diambil dari lapisan atas tanah hutan dan perkebunan kelapa sawit. Beberapa sifat kimia tanah dan fraksi-fraksi P dianalisis. Fraksionasi P dilakukan dengan menggunakan metode Tiessen dan Moir. Hasil penelitian menunjukkan bahwa fraksi P agak labil yaitu NaOH-Porganik (-Po ) dan -Pinorganik (Pi) merupakan fraksi yang ditemukan dominan di hutan dan perkebunan kelapa sawit. Persentase P labil (resin-Pi, NaHCO3-Pi,-Po) dan P organik agak labil (NaOH-Po) dari total fraksi P ditemukan lebih tinggi di lahan hutan dibandingkan dengan perkebunan kelapa sawit. Fraksi NaOH-Pi di perkebunan kelapa sawit lebih tinggi nilainya dibandingkan dengan di hutan. Hal ini menunjukkan bahwa secara alami perubahan penggunaan lahan hutan menjadi kelapa sawit mengubah distribusi fraksi P sebagai akibat dari perubahan kandungan karbon (C) organik tanah. Analisis korelasi menunjukkan bahwa hampir semua fraksi P berkorelasi positif dengan C organik, mengidentifikasikan bahwa mineralisasi C organik mempengaruhi distribusi fraksi P yang artinya C organik tanah mengontrol distribusi fraksi P pada lapisan permukaan tanah di lahan hutan dan perkebunan kelapa sawit.
Assessment of heavy metals pollution in sediment of Citarum River, Indonesia Mutia Oktarina Permai Yenny; Arief Hartono; Syaiful Anwar; Yumei Kang
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 10 No. 4 (2020): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.10.4.584-593

Abstract

Heavy metals have been reported to accumulate in sediment of Citarum River. The measurement of total heavy metals may not be able to provide information about the exact dimension of pollution, thus the determination of different fractions assumed great importance. This study was performed to determine chemical fractions of heavy metals (Cu, Ni, Cr, Pb and Cd) in sediment collected at 8 locations from Citarum River. The sequential extraction procedure was used to extract heavy metals in water-soluble, acid-soluble, MnO occluded, organically bound, FeO occluded and residual fraction in sediment. Bioavailability and potential ecological risk level of heavy metals were evaluated based on bioavailability factor (BF) and risk assessment code (RAC) method. The results showed that Cu, Ni, Cr were mostly in residual form, indicate those from geological sources. Cu had low bioavailability and no risk in all sediment samples of Citarum River. Ni and Cr each was found to have risk at 2 locations. Pb and Cd were found dominantly in non-residual fraction, suggest those from anthropogenic sources. BF and RAC analysis of Pb and Cd suggest that there is a potential risk to the aquatic environment.
Pengaruh Residu Terak Baja terhadap Sifat Kimia Tanah Gambut dan Hasil Padi Sawah Putro Hairutomo Setiko; Suwarno Suwarno; Arief Hartono
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 39, No 2 (2015)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v39n2.2015.127-136

Abstract

Potential Use of Alkaline-Activated Indonesian Pumice Powder as Lead Adsorbent in Solution System Faridlotul Hasanah; Syaiful Anwar; Arief Hartono; Untung Sudadi
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 16, No 2 (2019): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1051.07 KB) | DOI: 10.20961/stjssa.v16i2.34621

Abstract

Pumice is a volcanic material that found abundant in Indonesia. Owing to its physicochemical characteristics it can be utilized as a low-cost natural adsorbent for cationic contaminants. This study aimed to assess the performances of adsorbents prepared from NaOH-activated powder of Lombok and Kediri pumices for lead removal in solution systems based on their maximum adsorption capacity and removal efficiency parameters. The adsorption tests were done in batch experimentation using pumice powder of 74 μm particle size activated with 0.5, 1, and 2 M NaOH and lead solutions with initial concentrations of 0-260 mg.L-1. The most favorable NaOH activation concentration for both pumices was 0.5 M which resulted from Lombok pumice prepared-adsorbent with Pb maximum adsorption capacity based on linearized conventional and rearranged Langmuir isothermal adsorption models of 236.4 and 186.3 mg.g-1, while those of Kediri pumice were of 218.4 and 210.8 mg.g-1, respectively. The removal efficiency of both adsorbents were >80% at the initial Pb concentration of <100 mg.L-1 and around 50-80% at 100-260 mg.L-1. Both pumices are therefore considered potential to be utilized as an adsorbent for cationic contaminants in solution systems with reliable performances.
Harvesting of Residual Soil Phosphorus on Intensive Shallot Farming in Brebes, Indonesia Muliana Muliana; Arief Hartono; Syaiful Anwar; Anas Dinurohman Susila; Supiandi Sabiham
AGRIVITA, Journal of Agricultural Science Vol 40, No 3 (2018): OCTOBER
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i3.1868

Abstract

Accumulated residual soil phosphorus (P) on shallots farming in Brebes can be harvested through the application of ameliorants or bio-fertilizers. The information on the effect of ameliorants and bio-fertilizers on soil P fractions is limited. The study objective was to evaluate the transformation of accumulated P to available forms by adding humic substance (CHS), bio-fertilizers (CBF), phosphate solubilizing bacteria (PSB), or phosphate solubilizing fungi (PSF) on soil from Brebes. The experiment was conducted in rhizobox that has two compartments, namely inner compartment (rooting area) and outside compartment (non-rooting area). Shallots were planted for 26 days, observed for their growth, and analyzed for their P absorption. Soil samples in rooting and non-rooting area were analyzed for their P fractions after planting. The results indicated that the addition of CHS, CBF, PSB or PSF increased the harvesting of residual soil P through its transformation to a more labile P as high as 0.67% in rooting area. The dynamic of transformation in rooting area gave better information of harvesting P. The capability of harvesting accumulated P was in the order of CBF, CHS, PSF and PSB. For harvesting residual P, addition of humic substance or bio-fertilizers should be made in the rooting area.