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Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment)

jtanah
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Published by Institut Pertanian Bogor

ISSN : 14107333 EISSN : 25492853 DOI : -

Core Subject : Agriculture, Social,

Agriculture, Biological Sciences & Forestry Environmental Science

Jurnal Ilmu Tanah dan Lingkungan merupakan media yang menyajikan artikel mengenai hasil penelitian dan telaah perkembangan mutakhir dalam bidang ilmu tanah, air, dan ilmu lingkungan sebagai bahan kajian utama.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah

Articles 301 Documents

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PEMANTAUAN BAHAYA KEKERINGAN DI KABUPATEN INDRAMAYU Nina Widiana Darojati; Baba Barus; Euis Sunarti
Jurnal Ilmu Tanah dan Lingkungan Vol 17 No 2 (2015): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Kekeringan sebagai peristiwa alam dan menyerang secara perlahan, telah menimbulkan kerugian bagi petani di Kabupaten Indramayu. Mengingat kekeringan merupakan kejadian yang dapat berulang, maka perlu dilakukan upaya pemantauan dan mengidentifikasi faktor-faktor bahaya kekeringan, agar dapat dikembangkan model bahaya kekeringan. Disamping itu, perlu dilakukan pemetaan untuk diketahui sebaran kekeringan sebagai salah satu pertimbangan dalam pengembangan pertanian dan kebijakan lainnya, serta dapat meminimalkan kerugian yang mungkin di alami di kemudian hari. Penelitian ini menggunakan metode dengan mengidentifikasi faktor-faktor bahaya kekeringan dan mengembangkan model kekeringan. Tiap-tiap faktor diberi skor dan bobot berdasarkan urutan kepentingan atau pengaruhnya terhadap bahaya kekeringan kemudian digabungkan dengan metode MCE (Multi Criteria Evaluation). Model diterapkan pada 3 (tiga) titik tahun yaitu 2003, 2008 dan 2012 dalam dua versi. Versi 1 yakni dengan tidak menyertakan jarak dari jaringan irigasi dan versi 2 adalah dengan menyertakan jarak dari jaringan irigasi. Hasil penelitian menunjukkan bahwa faktor bahaya kekeringan yang memiliki pengaruh paling besar sampai dengan paling rendah adalah curah hujan, penggunaan lahan, jarak ke sumber air, tekstur tanah, suhu permukaan tanah, sehingga diperoleh model dengan formulasi: H=(0.34SPI)+(0.20L)+(0.19B)+(0.17Jt)+(0.10LST). Sebaran bahaya kekeringan pada model versi 2 memiliki luasan bahaya kekeringan lebih sedikit dari model versi 1 dan memiliki nilai akurasi lebih rendah dari versi 1. Model versi 2 merupakan kondisi ideal, tetapi jaringan irigasi kurang berperan pada masa musim kemarau. Sementara itu, model versi 1 memiliki tingkat validasi yang cukup signifikan. Versi 1 merupakan kondisi yang mendekati keadaan sebenarnya di lapangan. Kata kunci: Kekeringan, bahaya, suhu tanah, evaluasi multi kriteria, Indek Standar Curah Hujan

POTENSI DAN STRATEGI PENGEMBANGAN PERTANIAN PERIURBAN DI KABUPATEN BOGOR Herwita Andriamasari; Wahju Qamara Mugnisjah; Aris Munandar
Jurnal Ilmu Tanah dan Lingkungan Vol 17 No 2 (2015): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Trend baru dalam pengembangan pertanian di dunia saat ini adalah menganalisis potensi produksi pangan di kota-kota besar dengan mengintegrasikan kebijakan dan program penggunaan lahan, manajemen sumber daya alam dan perubahan lanskap pedesaan di area metropolitan. Kabupaten Bogor merupakan bagian dari kesatuan wilayah mega-city Jabodetabek (Jakarta, Bogor, Depok, Tangerang, dan Bekasi) yang terkena dampak perkembangan kota secara langsung. Dampak ini ditandai dengan perubahan lahan, salah satunya pertanian (lahan basah dan lahan kering), mengalami perubahan menjadi lahan terbangun sebesar 47,953 ha (16.04%). Studi ini bertujuan untuk mengidentifikasi dan menganalisis potensi periurban agriculuture di Kabupaten Bogor dengan menggunakan penginderaan jauh, GIS, dan AHP. Rekomendasi utama studi ini dalam pengembangan pertanian multifungsi adalah pengembangan pertanian yang mengutamakan perlindungan lingkungan (pertanian ramah lingkungan) dengan strategi pengembangan melalui aspek ekonomi dan sosial. Kata kunci : Kabupaten Bogor, area Jabodetabek, pertanian multifungsi, pertanian peri-urban

PEMODELAN PERUBAHAN PENGGUNAAN LAHAN KABUPATEN HUMBANG HASUNDUTAN MENGGUNAKAN CLUE-S Toga Pandapotan Sinurat; Khursatul Munibah; Dwi Putro Tejo Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 17 No 2 (2015): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

The growth of a region has changed land-use pattern, not only in urban areas but also rural areas such as Humbang Hasundutan regency, North Sumatra Province. As one district that newly developed since its establishment in 2003, land-use change has affected the environment such as the emergence of degraded land due to deforestation and other environmental vulnerability issues in some sub districts. CLUE-S (the Conversion of Land Use and its Effects at Small region extents) model with a combination of dynamic systems and quantification of empirical relationships between land-use and its driving factors was chosen to predict land-use change that improves an understanding of land allocation planning. The aims of this study were to analyze land-use change in Humbang Hasundutan district and predict the changes in year 2033. The results showed Humbang Hasundutan district has 5,362 hectares of forest cover loss in period of years 2003 to 2013. Land use change simulation by using scenario with restricted area policy and forest land rehabilitation can maintain forest cover over 30 % and contribute to augment forest vegetation on degraded lands by 47.87 % in year 2033. Keywords: CLUE-S, degraded land, forest cover, land-use change

DINAMIKA PERUBAHAN PENGGUNAAN LAHAN INDUSTRI KAITANNYA DENGAN PDRB SEKTOR INDUSTRI DI JABODETABEK Dewi Setyowati; Khursatul Munibah; Setia Hadi
Jurnal Ilmu Tanah dan Lingkungan Vol 17 No 2 (2015): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

The development of industrial areas in Jabodetabek developed rapidly since the beginning of 1970. The rapid urban development in the Greater Jakarta resulted in the emergence of new areas on the outskirts of the city as a container for the growth of activities, such as industrial areas. This condition occurs because of the limited supply of urban land on a large scale, especially for industrial activities. The purpose of this study was to analyze changes in land use to non-industrial land to industrial land and its relation to the GDP in Jabodetabek industry and analyzes the factors that affect the industrial sector GDP. The method used in this research are the survey, GIS analysis and regression. The results showed that changes in land use (conversion) non industry to 1998 to the Year 2012 are in Bekasi largest by land use type housing, open space, and rice fields. Changes in land use non industry to positively correlate with changes in the industrial sector GDP in Jabodetabek.. Variables are a strong influence on the formation of GDP industrial sector, is a variable raw material. The development of industrial sites in Greater Jakarta tends to follow them main road network forease of accessibility. Keywords: Distribution of industrial land, Jabodetabek, industry

EFFECT OF AZOTOBACTER AND AZOSPIRILLUM ON GROWTH AND YIELD OF RICE GROWN ON TIDAL SWAMP RICE FIELD IN SOUTH KALIMANTAN Fakhrur Razie; Iswandi Anas
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 2 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Tidal swamp land is a potential area for rice cultivation. However, tidal swamp is fragile ecosystems, so that when this area is used for rice cultivation, it has to be done carefully. To reduce a risk of environmental pollution in the tidal swamp area due to rice cultivation, the area should be managed properly and wisely especially when using agrochemicals such as fertilizers and pesticides. In relation to this, the use of bio-fertilizer such as Azotobacter or/and Azospirillum, an atmospheric nitrogen fixing bacterium, might be an important thing for this area. The objectives of this study were to evaluate the number of NFB (i.e. Azotobacter and Azospirillum spp.) found in tidalswamp rice fields of South Kalimantan, and their ability in fixing atmospheric nitrogen and supplying this fixed nitrogen to rice, and in increasing rice yields. There were three research stages performed in this study. The first, collecting, isolating and purifying the NFB on the selective media of nitrogen free media. The second, a hydroponic experiment in the greenhouse using Yoshida nutrition solution (Yoshida et al., 1976 in IRRI, 2003) as culture media and selected Azotobacter and Azospirillum. The third experiment was to study the effect of selected Azotobacter isolates to increase growth and yield of IR64 and Margasari rice cultivars, and two Azotobacter isolates were combined with six inoculation methods for Siam Unus rice cultivar as treatments. The result showed that the number of NFB strains found in rhizospere rice cultivars were varied widely. Then, Azotobacter and Azospirillum spp selected from rice fields in the tidal land of South Kalimantan when associated with IR64 and Siam Unus rice cultivars have ability in fixing atmospheric N2 and in supplying N on the initial rice growth. Azotobacter T.B.PDST.2b and T.HM.BPMT.2b were significantly supplying N for early growth of IR64 rice cultivars (2.34 and 2.13 %N). The ability of these isolates to fix atmospheric N2 was similar to N fertilizer (urea) in supplying N (2.2% N). Only Azotobacter T.B.PDST.2b was relatively significant to supply N (1.36% N) for Siam Unus rice cultivar early growth, even though this strain has less ability than N fertilizer (1.94% N) in supplying N. Azotobacter isolates grow in media containing no urea were higher IAA produced than in media containing Urea. Furthermore, yield of IR64, Margasari and Siam Unus inoculated with Azotobacter isolates were 3.87–4.93; 4.63-5.36 and 5.44-6.42 ton/ha respectively. In conclusion, the utilization of Azotobacter and Azorpirillum spp to substitute N fertilizer would be able to increase effeciency of N nutritions and to avoid environment pollutions risks from agrochemical N fertilizer other than to increase rice yields on tidal land of South Kalimantan.Keywords: Azotobacter, Azospirillum, rice cultivars, tidal lands and rice yields.

MENENTUKAN KEBUTUHAN NITROGEN, FOSFOR DAN KALIUM UNTUK TANAMAN JAGUNG BERDASARKAN TARGET HASIL DAN EFISIENSI AGRONOMIK PADA LAHAN KERING ULTISOL LAMPUNG Anadarias Makka Murni
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 2 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

To obtain the rational fertilizer recommendation for maize in Lampung, the experiment had been conducted in three continuous years. The aims of the experiment were to determine nitrogen (N), phosphorus (P) and potassium (K) requirements for maize based on yield target. The experiments were conducted in Tegineneng, South Lampung during the rainy season of 2005, 2006 and 2007. The experiments were designed in omission plot and NPK treatments namely 1) 0 kg N +35 kg P + 100 kg K ha-1 (N0P35K100), 2) 200 kg N + 0 kg P + 100 kg K ha-1 (N200P0K100) 3) 200 kg N + 35 kg P + 0 kg K ha-1 (N200P35K0) and 4) 200 kg N + 35 kg P + 100 kg K ha-1 (N200P35K100). Randomized block design with 5 replications was used in the experiments. The results showed that the omitted N > K > P significantly reduced the yield of maize. Yield responses to fertilizer were N = 2.6-4.1, P = 0.57-2.0 and K = 1.6-2.4 t ha-1 and agronomic efficiencies of nutrients were N = 13-21, P = 19-57 and K = 16-24 kg yield kg-1 nutrient. Thus, based on the yield target agronomic efficiencies, the N, P and K requirement for maize at Lampung Ultisol are N = 125-200, P2O5 = 25-100, and K2O = 30-120 kg ha-1 with the yield target of 7-10 t ha-1.Keywords: Omission plot, NPK requirement,Ultisol, zea mays, Lampung

BIOTEKNOLOGI LINGKUNGAN UNTUK PENANGGULANGAN LIMBAH MENGANDUNG KROM Dwi Andreas Santosa; Tommy Kurniawan; F. Dian Lina
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 2 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

The biotechnological approaches for treatment of wastewater are widely studied within the last two decades. We show that this approach can be used for treatment of Cr-contaminated wastewater. The sulfate reducing bacteria Desulfotomaculum orientis ICBB 1204 is used in a laboratory experiment to treat Cr-contained wastewater from metal plating industry and the oil and gas company, PT VICO, East Kalimantan. After adaption of the bacteria for around 10 days in the wastewater containing 100 ppm Cr, the process of Cr reduction took place and the Cr in the medium were reduced 92.7% within 20 days. The similar results were achieved on the treatment of PT VICO’s wastewater. The Cr content in the wastewater decreased from 6.54-6.76 to 0.08-0.09 ppm and the pH increased from 3 to 5 – 6 within 20 days incubation period.Keywords: Cr detoxification, Desulfotomaculum orientis ICBB 1204, sulphate reducing bacteria, wastewater

INDONESIAN FARMERS CAN CONTRIBUTE IN REDUCING GREENHOUSE GASES EMISSION FROM WETLAND RICE FIELD Iswandi Anas; Nia K. Megasari; Suprihati Suprihati; Hiroyuki OHTA
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 2 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Agricultural sector contribute significantly to the total GHG emission. There are some GHG mitigation options available but so far non of these mitigation options is being implemented by farmers. There is no real action have been taken by government to encourage farmers to implement the available mitigation option to reduce GHG emission from wetland rice field. We discuss some mitigation options and we suggest two additional GHG mitigation options namely crops rotation and System of Rice Intensification (SRI) that probably more attractive to farmer to implement them. However the impacts of these two proposed options as GHG mitigation options should be studied further.Key words: Greenhouse gases (GHG), mitigation option, farmer contribution, SRI, crop rotation

PEMANFAATAN AGEN HAYATI DALAM BUDIDAYA TITONIA PADA ULTISOL Auzia Asman; Nurhajati Hakim; Agustian Agustian; Hermansah Hermansah
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 2 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Titonia could be used as alternative fertilizer to reduce up to 50% the chemical fertilizer aplication of chili, gardamon, maize, soybean and sweet potato. The titonia which grow as alley croping system(20 rows ha-1) could produced 6,6 -6,8 ton ha-1 y-1 of dry biomass with 2 months pruning period. This amount equal to 40 ton ha-1 y-1 of fresh biomass of titonia. Such amount of biomass content 150-240 kg ha-1 y-1 of N and 156 – 245 kg of K that could be used to replace the 50 % of chemical fertilizer. In the rhizosphere of titonia was observed the micro organism has role in increasing the production of biomass such as micorhizae, bacteria diluted P, Azotobacter, Azospirillium, and bacteria produced of phitohormon. We assume that the re-inoculation of those microorganism in to the rhizosphere of titonia might contribute in increasing of titonia biomass and nutrients yield. The study of the re-inoculation of such microorganism to the rhizosphere of titonia in order to find out the kind of micro organism which highly contributed in increasing of biomass was conducted. The study was conducted by using completed randomized designed with10 treatments and 5 replications. Those treatments are A=without reinoculation (control); B=bacteria diluted phosphate (bdp); C=Azotobacter; D=Azospirillium; E=bacteria produced phytohormon (bph); F=bdp+Azotobacter; G=bdp+Azospirillium; H=bdp+bph; I=bdp+Azotobacter+Azospirilliun; J=bdp+Azotobacter+Azosprilliun + bph. The result of study showed the combination of the reinoculation to the rhizospehere in increasing of biomass and nutrients yield of titonia were (1)Bacteria diluted phosphate; (2) Azospirillium; (3) Bacteri diluted phosphate + Azototobacter; (4) Bacteria diluted phosphate +Azospirillium; dan (5) Bacteria diluted phosphate +Azotobacter +Azospirillium.Keywords: Agen Hayati, Titonia, alternative fertilizer

PENGARUH SUMBER AIR PENYIRAMAN DAN FREKUENSI PENYEMPROTAN INSEKTISIDA TERHADAP PERTUMBUHAN DAN KANDUNGAN TIMBAL (Pb) PADA TANAMAN SELADA Etik Puji Handayani; Rakhmiati Rakhmiati; Yatmin Yatmin
Jurnal Ilmu Tanah dan Lingkungan Vol 10 No 2 (2008): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Water management and technology of protection insectiside could be changes availability heavy metal in soil and plant. The objective of this research was to study the effect of water source to spray vegetables and frequency sprayer insecticide on the growth and Pb contain in vegetable. The experimental design was factorial in randomized completely block design with three replications. The result showed the effect of water source to spray vegetables and frequency insecticide spray not significant on the growth vegetables, but significant on Pb contain in vegetables. The maximum Pb (7,97 ppm) in sludge from household and twice insecticide spray.Keywords: Water source, frequency insecticide, Heavy metal Pb, vegetable.

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