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Jurnal Ilmu Tanah dan Lingkungan

jtanah
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Published by Institut Pertanian Bogor

ISSN : 14107333 EISSN : 25492853 DOI : https://doi.org/10.29244/jitl.28.1.1-10

Core Subject : Agriculture, Social,

Agriculture, Biological Sciences & Forestry Environmental Science

Focus and Scope Journal of Soil Science and Environment Jurnal Ilmu Tanah dan Lingkungan is a media that presents articles on the results of research and studies of the latest developments in the fields of soil and land resources, water and environmental sciences as the main study material.

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

Articles 306 Documents

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Ucapan Terima Kasih: Aknowledgement Admin Admin
Jurnal Ilmu Tanah dan Lingkungan Vol 19 No 2 (2017): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

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RESPON VARIETAS PADI IR64 DAN IR64-SUB 1 TERHADAP PERENDAMAN DAN PEMUPUKAN N Ikhwani Ikhwani; Gagad R Pratiwi; Abdul Karim Makarim
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 1 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

There are many new rice varieties have been produced, introduced and breed at IRRI and the other National Agriculture Research Institutes that are tolerance to submergence condition to anticipate global warming and flash flooding around theworld. Among others are IR64-Sub 1, Suwarna-Sub 1, Inpara-1, Inpara-2, inpara-3 etc. However, those new varieties have not been tested widely yet, and the method of rice cultivation under submergence condition have not been adjusted, including the nutrient management.A greenhouse experiment was conducted at Muara Research Station, Bogor during 2008 dry season. The objectives of this experiment are (1) to study the effects of time of submergence and N application on plant growth and yield of R64 and IR64-Sub 1 rice varieties; (2) to find the best nutrient management for submergence rice varieties. The experiment was conducted during 2008 dry season at greenhouse, Muara Research station, Bogor. The design of the experiment was a Completely Randomized Factorial Design with three eplications. Factor 1 is rice variety (IR64 and IR64-Sub 1); Factor 2 is time of submergence (without submergence or control, submergence at vegetative phase (15 to 25 d.a.t), and at generative phase (35 to 45 d.a.t)). Factor 3 is N application, namely (F1) 300 kg Urea/ha 3x applications at 7 d.a.t- 30 d.a.t – 55 d.a.t; (F2) Mudball urea –300 kg Urea/ha applied once at 7 d.a.t. (F3) compost; and (F4) compost and urea; (F5) Urea and silikat.urea-N application at four time 0 d.a.t – 7 d.a.t – 30 d.a.t – 55 d.a.t (factor C). The results of experiments showed that submergence changes rice plant growth pattern (mainly tiller number and plant height), increased dry grain weight of IR64, namely 35.9 g at early vegetatif phase and 29.9 g at late vegetatif phase, while for IR64-Sub 1 32.6 g and 30.3 g at the same respective phase. Mudball urea and silicate application improved plant resistant to submergence and increase rice yield.

EMISI CO2 PADA KEBUN KELAPA SAWIT DI LAHAN GAMBUT: EVALUASI FLUKS CO2 DI DAERAH RIZOSFER DAN NON RIZOSFER Etik Puji Handayani; Komarudin Idris; Supiandi Sabiham; Sri Juniwati; Meine van Noordwijk
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 1 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Sources of CO2 from the soil include root respiration, decomposition of newly fallen aboveground litter and decomposition of old soil organic matter. Rhizosphere processes play a key role in soil respiration which is the main carbon efflux from peatland ecosystem to atmosphere. Plant rhizodeposits supply low-molecular weight carbon substrates to the soil microbial community, resulting in elevated levels of activity surrounding the root. We studied the effects of rhizosphere in oil palm plantation on the fluxes of CO2. Carbon dioxide emission flux of peatland was collected in Meulaboh, West Aceh using cylindrical chambers and analysis air samples of chamber by gas chromatograph. Five-point transects perpendicular to drainage canal provided variation in depth of water table for the samples. The data confirmed that The CO2 flux from rhizosphere chamber with additional roots was one to four times higher than from bulk soil chamber.

KAJIAN RISIKO LINGKUNGAN UNTUK PENGGUNAAN AGEN HAYATI DI BIDANG PERTANIAN Dwi Andreas Santosa
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 1 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

In Indonesia, the biological agents have been widely used in the agriculture for reducing chemical fertilizers uses, for controlling plant pest and pathogens, and for increasing rate of composting process. The application of biological agents is especially important in the organic agriculture practices. The agents consist of microorganisms both fungi and bacteria, and in some extent are also viruses, that part of them are imported from other countries. Based on their characteristics, any biological agents that are released into the environment can pose potential problems to the environment or the ecology. There is a Ministerial Decree that require an environmental risk assessment (ERA) for getting a permission of an importation of biological agents. Unfortunately, there is not any guidance to conduct ERA of biological agents. This paper reviews ERA and using of the approach to do a risk assessment of biological agents that will be used in agriculture.

HUBUNGAN KARAKTERISTIK LAHAN DENGAN PRODUKTIVITAS TBS (Studi Kasus pada PT. Perkebunan Nusantara VIII Cimulang, Bogor) Komarsa Ganda Sasmita; Basuki Sumawinata; Sry Nurmala
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 1 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Oil palm (Elaeis guineensis Jacq) is an important crop for Indonesia as one of non fuel export commodities. Development, improvement of quality and productivity of oil palm is influenced by a lot of factors, among others are land characteristics. This research was aimed to know the relationship between oil palm productivity and physical land characteristic including soil, slope and the crop age. The results of this research were expected to be useful to improve oil palm productivity and the oil palm plantation development.This research was done within the site of PT. Perkebunan Nusantara VIII at Cimulang, Bogor. In this research, analyzing correlation between productivity of blocks that have homogenous land characteristic with physical land characteristic parameter including soil and slope. Block with homogenous land characteristic was block which 75% or more of it’s area had similar characteristics. These blocks were determined by overlying block map, slope map and soil map. The result show that were 20 homogenous blocks out of all the 38 blocks of the site the PT. Perkebunan Nusantara VIII at Cimulang. Average production was depend on crop age. At study areas, the highest average fresh fruit bunch production obtained from plants 5 years, which was equal to 22.87 tons acre-1 year-1 and the lowest average fresh fruit bunch production obtained from plants 3 years, which was equal to 0.66 tons acre-1 year-1. Based on soil, the highest average fresh fruit bunch production obtained from the SPT 11 (Typic Eutrudox), which was equal to 12.54 tons/acre/year and the lowest average fresh fruit bunch production obtained from SPT 1 (Oxic Dystropept), which was equal to 9.51 tons/acre/year. Based on slope class, the highest average fresh fruit bunch production obtained from block with slope class B (8-15%), which was equal to 12.54 tons/acre/year, and the lowest average production was equal to 9.98 tons/acre/year from the slope class.

MODEL HUBUNGAN ANTARA JUMLAH PENDUDUK DENGAN LUAS LAHAN PERTANIAN DAN PERMUKIMAN (Studi Kasus DAS Cidanau, Provinsi Banten) Khursatul Munibah; Santun R P Sitorus; Ernan Rustiadi; Komarsa Gandasasmita; Hartrisari Hartrisari
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 1 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Increasing of population will effect to economic development that need the appropriation of lands for settlement, industry, infrastructure and service. Purposes of this research were to project population on 2018 and 2030; analyze land use change on period 2006-2018 and 2018-2030; analyze correlation between population with agriculture area and population with settlement area. Analysis of land use change was obtained by overlapping multitemporal land use maps. Regression approach was used to project population on 2018 and 2030; correlate between population with agriculture area and population with settlement area. The Result showed that 48% of villages which its population projection based on saturation model and 52% based on exponential model. Increasing rate of Agriculture area and settlement were 1,48%/12 years and 0,86%/12 years, respectively. Correlation between population with agriculture area were linier with R2 = 0, 7167 (2006); 0, 6343 (2018) and 0, 5082 (2030). Correlation between population with settlement were linier with R2 = 0, 7168 (2006); 0, 7312 (2018) and 0,568 (2030). Dynamical of R2 values showed contributory influence of population factor in increasing of agriculture area and settlement area.

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Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 1 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

ANALISIS KONVERSI LAHAN PERTANIAN DI KEBUPATEN TANGERANG Santun R P Sitorus; Riezkiana Putri; Dyah R Panuju
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 2 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Land conversion is a term that describes phenomenon of changing land-use from one to other uses permanently. Factors closely associated with land conversion were population growth, economic, and infrastructure development. This study aims are: (1) to determine rate and pattern of farmland conversion in Tangerang District, (2) to know growth rate of population density, economic growth, and development of Tangerang District, and (3) to determine factors affecting conversion of agricultural land in Tangerang District. Land conversion in Tangerang District caused areas of agricultural land decreased 2.4% per year. The agricultural lands were converted into built land. Population density grew unevenly in Tangerang District. The highest population density growth rate occurred ( during 1997-2007 ) in Pasar Kemis (19% ) and Kronjo faced the lowest rate (0.2%). The economic growth rate in the Tangerang District can be seen from the 1997-2007 Gross Regional Domestic Product (GRDP) Tangerang District. In general, service sector has the highest growth rate (3.9%) followed by industrial sector (0.9%) and agriculture sector (0.6%). Meanwhile, mining sector decreased by 4.1% per year. Level of development in Tangerang District analyzed with scalogram shows that in 2003 most of the villages (60.98%) were on 3rd hierarchy, while the rest on 2nd hierarchy (30.18%) and 1st hierarchy (8.84%). In the year 2006, there were an increase in number of villages on 2nd hierarchy and a decrease in number of villages on 3rd hierarchy, while the number of villages on 1st hierarchy were the same. Factors with highly significant (p-level <0.05) influencing agricultural land conversion were GRDP growth of services sector, GRDP of agricultural sector, GRDP of manufacturing industry, educational facilities, economic facilities, accessibility to health facilities, and accessibility to government centre, whereas accessibility to educational facilities was the significant factor (p-level <0.1).

PERAN DAN KOORDINASI LEMBAGA LINTAS SEKTORAL DALAM KONSERVASI SUMBERDAYA AIR (STUDI KASUS DAS GUMBASA KABUPATEN DONGGALA PROVINSI SULAWESI TENGAH) Muhammad Ansar; Suria Darma Tarigan; Dwi P T Baskoro
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 2 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Watershed management consists of multi stakeholders. Therefore, institutional aspect for regulating interaction among stakeholders is very important to be taken into consideration in watershed management. Watershed management will only be efficient if institutional aspect functioning in harmony. Objective of this research is to study role and coordination of cross sectoral government institutions in management of water resource conservation. In this research five elements of water resource conservation were analized, there are: 1) involved organizations, 2) related regulations, 3) management function performance (planning, execution, and controlling), 4) coordination aspect, and 5) priority instrument. Each of those elements was sub-divided into sub-elements according to analysis model used in this research. Two models were used in this analysis. Those are Interpretative Structural Modeling (ISM) and Analytical Hierarchy Process (AHP). Base on the analysis it is concluded that Big Agency of Lore Lindu National Park (BBTNLL), Agency of Watershed Management (BPDAS) Palu-Poso, and Forestry and Plantation Service of Donggala Regency were the most influential organizations in planning, execution, and controlling water resources conservation. Role of those organizations in the management activities were mainly regulated in the respective regulations. Coordination among acting organization is still weak due so the sectoral-ego and lack of qualified human resources.

PHOSPHORUS SORPTION KINETIC ON ACID UPLAND SMECTITIC SOIL AMENDED WITH CALCIUM CARBONATE AND CALCIUM SILICATE Arief Hartono
Jurnal Ilmu Tanah dan Lingkungan Vol 11 No 2 (2009): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Acid upland smectitic soil is identified by high amount of exchangeable Al due to the weathering of aluminum (Al) octahedral layer by H+ saturation and by very low phosphorus (P) status. Calcium carbonate (CaCO3) and calcium silicate (CaSiO3) were commonly used to decrease exchangeable Al and increase soil pH. Laboratory experiments were conducted with clayey smectitic Typic Paleudults from Gajrug region, West Java. The CaCO3 and CaSiO3 were added at rates to replace 0, 1.5 or 3 times of exchangeable Al. After one month of incubation, P sorption kinetic experiments were conducted. The changes in some chemical properties after one month incubation showed that both CaCO3 and CaSiO3 increased the soil pH, exchangeable Ca, and base saturation but did not increase the cation exchange capacity. The results of the experiment showed that both CaCO3 and CaSiO3 decreased the rate constant value of first order kinetic equation (k) and the P sorbed maximum (a) at given amount of added P compared to Control.The CaCO3 was better than CaSiO3 in decreasing k values and on the contrary for a values. The decrease in P maximum sorption and the rate constant of the soil amended with CaSiO3 and CaCO3 due to occupation of P sorption sites by silicates and hydroxyl ions. The CaCO3with the rate to replace 1.5 x exchangeable Al was recommended to decrease the rate constant of P sorption. However, the CaSiO3 at the rate to replace 3 x exchangeable Al was recommended to decrease the maximum P sorption.

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Department of Soil and Land Resources, Faculty of Agriculture, IPB University Jl. Meranti Wing 18 Lv 6, Darmaga Campus of IPB, Bogor 16680 Tel. 02518629360; Fax. 02518629358

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Contact Name Prof. Dr. Ir. Widiatmaka, DAA, IPU

Contact Email jitl@apps.ipb.ac.id

Phone +6285217342125

Journal Mail Official jtl@apps.ipb.ac.id

Editorial Address Department of Soil and Land Resources, Faculty of Agriculture, IPB University Jl. Meranti Wing 18 Lv 6, Darmaga Campus of IPB, Bogor 16680 Tel. 02518629360; Fax. 02518629358

Location Kota bogor, Jawa barat INDONESIA

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Prof. Dr. Ir. Widiatmaka, DAA, IPU

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jitl@apps.ipb.ac.id

Phone
+6285217342125

Journal Mail Official
jtl@apps.ipb.ac.id

Editorial Address
Department of Soil and Land Resources, Faculty of Agriculture, IPB University Jl. Meranti Wing 18 Lv 6, Darmaga Campus of IPB, Bogor 16680 Tel. 02518629360; Fax. 02518629358

Location
Kota bogor,

Jawa barat

INDONESIA