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INDONESIA
Jurnal Sumberdaya Lahan
Published by Kementerian Pertanian
ISSN : 19070799     EISSN : 27227731     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
diterbitkan oleh Balai Besar Litbang Sumberdaya Lahan Pertanian, Jurnal Sumberdaya lahan terbit 2 kali setahun memuat suatu tinjauan terhadap hasil-hasil penelitian atau terhadap suatu topik yang berkaitan dengan aspek tanah, air, iklim, dan lingkungan pertanian
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue " Vol 4, No 01 (2010): Juli 2010" : 5 Documents clear
DEVELOPMENT OF NATIONAL CLIMATE DATABASE SYSTEM FOR SUPPORTING AGRICULTURE RESEARCH RUNTUNUWU, ELEONORA
Jurnal Sumberdaya Lahan Vol 4, No 01 (2010): Juli 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Abstract

One of the most significant challenges for improving the agroclimate research is availability of integrated climate data. This paper reviewed several climate database systems development of national and international levels; such as those produced by Indonesian Meteorological Climatological  and Geophysical Agency (BMKG), World Meteorological Organization (WMO), and New Zealand climatic database systems. Indonesian Agency for Agricultural Research and Development (IAARD) through Indonesian Agroclimate and Hydrology Research Institute (IAHRI) has  developed a national climate database system (CDS), called as IAHRI CDS, as a basic part of agroclimatic researches. The system was integrated the numeric climate data and thematic spatial maps by applying Geographic Information System (GIS) and programming technologies. The data mainly comes from automated and manual climate stations of Ministry of Agriculture, BMKG and Irrigation service of each province. The development of IAHRI CDS is expected as a great resource for many potential applications on agriculture research in Indonesia. Keywords : Aagriculture, climate, database system, Indonesia
Retention P by Iron Oxide in Acid Sulphate Soil after Land Reclamation ANNISA, WAHIDA; PURWANTO, B.H
Jurnal Sumberdaya Lahan Vol 4, No 01 (2010): Juli 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Abstract

Acid Sulphate Soil is a kind of soil with high pyrite (FeS2) content. Miss management in land reclamation of acid sulphate soil will cause pyrite oxidation that made the soil becomes very acid. Pyrite oxidation on acid sulphate soil will produce iron oxides such as goethite (α-FeOOH) and hematite (α-Fe2O3). Goethite and hematite have ability to bind the anions and cations in the soilsuch as phosphate which produces a complex surface binuclear with model of Fe-OP(O2)-O-Fe. On acid sulphate land because of its association with soil Fe and its solubility alteration during reduction and oxidation processes of land, P is a limiting factor. More iron oxide in the soil, more P is retentioned. Each m.mol Fe in soil will bind P as much as 0,17 m.mol P.
Rice Field Necessity to Sufficient Production of Food Material RITUNG, SOFYAN
Jurnal Sumberdaya Lahan Vol 4, No 01 (2010): Juli 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Abstract

Indonesian population from year to year increasing, with growth of about 1.5%/year, thus pushing food demands continues to increase. Particularly agricultural land especially rice field, covering an area in 2005 reached 7.89 million hectares was not able to meet the food needs of Indonesia, so that needs to be supplemented by imports which in the last decade it has increased. The need for food began to increase and in the year 2020 deficit is estimated to occur if there is no additional production of 1.1 million tons of rice or equivalent to 1.8 million tons of GKG. In 2050 demand for rice will reach 48.2 million tons, an increase of 145%. Commodity corn and soybeans are expected to occured a deficit each of 2.2 million tons and 2.5 million tons in 2050. To sufficient the necessity of food until the year 2050, assuming that the conversion of rice land could be reduced to 60,000hectares/year, required the new rice fields of about 1,6-2,4 million hectares in 2020 and the cumulative area until the year 2050 is 6.0 million hectares.The potential availability of land for extensification of rice field in Indonesia is 8.28 million hectares, consists of 2.98 million hectares swamp rice field and 5.30 million hectares of non swamp rice field. The largest potential development are in Papua, Kalimantan, and Sumatra, each of 5.19 million hectares, 1.39 million hectares, and 0.96 million hectares. Rice field extensification strategies can be done through land use potential rice fields in the irrigation areas, abandoned rice field optimization in the tidal swamp and inland swamp, and extensification of rice field region scale in area large potential like Papua and Kalimantan.
Efficiency Strategy of Organic Matter Use for Soil Fertility and Productivity by Soil Biology Resources Empowerment GITOSUWONDO, SUBOWO
Jurnal Sumberdaya Lahan Vol 4, No 01 (2010): Juli 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Abstract

Indonesia is an archipelago in wet tropical volcanic regions have high soil biodiversity, high rate of weathering and high of soil erosion, but low on soil fertility and soil organic matter content. Improvement of soil fertility to plant directly with the provision of organic materials requires a large amount and expensive. Problems faced by low organic matter production ability, high decomposition rate, bulky and is in the archipelago, making it difficult in the procurement and conservation of organic matter in soil and expensive transportation costs. Provision of organic materials with the aim of empowering the soil biology resources to enhance soil fertility potential pursued. In addition to the dose of organic matters required is relatively lower may also prevent the emergence of soil born diseases are also increasing of soil organic matter conservation. In determining land suitability evaluation in wet tropical volcanic region should consider the role of soil organism populations to support crop production and protected soil organic matter content.
Reclamation of Ex-Mining Land for Agricultural Extensification DARIAH, AI; ABDURACHMAN, A.; SUBARDJA, DJADJA
Jurnal Sumberdaya Lahan Vol 4, No 01 (2010): Juli 2010
Publisher : Indonesian Center for Agriculture Land Resource Development

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Abstract

Utilization of ex-mining land for agricultural extensification is an opportunity to solve the problem of food and environment. This paper discusses prospective utilization of ex-mining land for agricultural extensification. Mining area equipped with a business license for mining in Indonesia is around 2.2 million ha under Coal Concession Agreement, and 2.9 million ha under the Contract of Effort. A part of land is already finished being mined, and be managed properly in order to benefit the community and not damage the environment. The initial steps that need to be done is mapping of mined lands, included a status of ownership (land tenure), so that subsequent use of both for agriculture and other businesses can be sustainable. Land reclamation is necessary to increase capacity and efficiency for biomass production. Determination of land use types, should be based on land tenure, bio-physical conditions of land, and the needs of the community or local government. In the future, mining land management requirements is not enough simply by opening a feasibility study for mining operations, but need to be accompanied also with itsclosure plan (planning of closures), which includes environmental protection and mitigation of socio-economic problems. This needs to be one of the terms of the granting of mining permits.

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