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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 3, No 1 (2009)" : 5 Documents clear
Characteristics of Spodosols, Limitation and Usage Potential NATA SUHARTA; EDI YATNO
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Spodosols characterized by the presence of spodic and albic horizons, are problem soils due to low productivity, coarse texture and low nutrient status. This soil was generally covered by alang-alang or shrub and bush. The soils were generally distributed in cold climate or wet tropical areas with high rainfall. The objectives of this paper were to discuss the characteristics ofSpodosols in Kalimantan and Sumatra and the possibility of their utilization. In Indonesia, this soil is found in Kalimantan, Sulawesi, Sumatra, and Papua Islands. Parent materials of the soils were originated from quartz sand, sediment or acid sedimentary rocks (quartz sandstone) with low nutrients status. Physiographically, the soils were distributed in alluvial plain, colluvial, sand beach, sand dune, tectonic plain and sandstone plateau on elevation of 5 to >1,500 m asl, with flat to nearly undulating relieves. The soil physical properties were characterized by coarse texture and the presence of root limiting layer such as fragipan, duripan, or placic horizon (organo-metal complex) with various depth. The soil chemical properties were characterized by acid soil reaction, very low exchangeable bases, P and K nutrient, and mineral reserve. Cation exchange capacity of the soils depends on their soil organic matter content. Based on the soil characteristics, most Spodosols were not suitable for agricultural land development. Therefore the Spodosols usages should be directed not only for production increases but also for environmental healthiness and soilcare. The Spodosols land that have been opened needs to be optimally used in order to increase soil quality through appropriate soil and plant management. The new land cleared for agriculture and production forest needs carefully actions with localizing the Spodosols distribution in order to maintain the natural vegetations as conservation forest or recreation areas.
Prospect of Soybean Extensification in Indonesia ANNY MULYANY; . SUKARMAN; ACHMAD HIDAYAT
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Indonesia which covers 188.2 million ha of land area has great opportunities for soybean expansion. Until now, domestic need for soybean is still complied from import. Soybean is one of the strategic commodities for food and industrial needs, which in 2008 became a national issue because of the scarcity in the market. Therefore, the Department of Agriculture launched a selfsufficiency policy on soybeans targetted in the year 2014 through breakthrough efforts. To support the target, suitable land for soybean has been identified in 17 provinces. The results showed that land suitable for soybeans is around 16.7 million ha, scatteredin various location, namely 4.9 million ha in wetland area, 1.7 million ha in dry land area, 1.7 million ha in plantation area, 2.9 million ha in mix garden area, and 5.5 million ha in grass land area. If 30% of the assumed land suitable for soybeans in ricefield and upland can be utilized, these can produce 2.4 million tons of soybeans with the assumption that the average productivity levels is 1.2 tonnes/ha and once a year planting to maintain the balance of others commodity production. By utilizing 2 million ha of ricefield and upland, soybean self-sufficiency can be achieved in 2015. The development and extensification of soybean planting area should consider land suitability level. Area selection which historically has became soybean production center in 1990 is also has to take into account as well as farmer’s habit in soybean farming system. To accelerate the soybean self sufficiency, the improvement of human resources must be supported in form of assisting, motivation, extention, training, and plot dmeonstration, in order to gain optimal land productivity and technological application. In addition, the government supports are needed for the provision ofproduction facilities, capital, building the marketing chain, as well as conditions to create reasonable prices so that there isincentive for communities to develop soybeans.
Potential Development of Agriculture Commodity High Economy Value in Daerah Istimewa Yogyakarta Province SUBOWO GITOSUWONDO
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Indonesia has been able to reach self sufficiency for rice, but the problem is decreasing farmer economic value exchange. For that reason besides pursuing increase land productivity and agriculture commodities development, the improvement farmer income must be done. Daerah Istimewa Yogyakarta Province has ± 0,319 million ha within land typology from mountainous vulcanize until sand shore. The problem is narrow land tenure, so that to increase farmer income the development of agriculture commodity with high economics value should be executed based on land carrying capacity. High diversity of land typology with good irrigation network and farm road infrastructure make DI Yogyakarta Province potential to be developed as agriculture seed centre and off season commodity planting. The minerals deposit of volcanous Merapi mountain and marine can increase quality ofagricultural product which good for health, therefore it is potential for development of functional food and improvement livestock reproduction for calf production. Through agricultural product that has high economics value, farmer income and public prosperity are expected to increased.
Red Soils from Various Parent Materials in Indonesia: The Prospect and Their Management Strategic B.H PRASETYO
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Distribution of red soils is about 50 million hectares, and generally potential for agricultural development in Indonesia. The soil was formed from various parent materials, such as andesitic-basaltic rock, acid tuff, limestone, ultra mafic rock, clay stone and sand stone. Generally the red soils were very developed soils, so that the sand mineralogy was dominated by minerals thatresistent to weathering such as quartz and opaque. The clay mineral was dominated by variable charge minerals which depends on pH like kaolinite followed by gibbsite, goethite, and hematite. These soils have very acid to slightly alkaline reaction, low exchangeable bases, low to high cation exchange capacity, and positive correlation to organic-C in the soil. The red soils according to Soil Taxonomy system could be classified as Inceptisols, Alfisols, Ultisols, and Oxisols. Characterization of the red soils areneeded before they are utilized for agriculture.
Sectoral Impact and Current Coping Mechanisms: Water Resources and Agriculture KASDI SUBAGYONO; ERNI SUSANTI
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n1.2009.%p

Abstract

Available water resources and its quality in Indonesia have been deteriorated as an impact of climate change (and/or) environmental degradation. This could affect on farming processes particularly and agricultural development in general. Virtual available surface water gives a figure that available water decreased temporally and spatially. For instance, in Java island with cover 65% of total population only has 4.5% of the total available water in the country. Agriculture is the biggest use of water (about70%), but it will be difficult for farmers to accomplish water requirements. Other users such as domestic (about 6%), industry (about7%), and municipal (about 4%) are also the major users of water in the country, which may raise a conflict among the users in covering the needs. Current mechanisms to cope climate change in water resources management has been executed through adaptation and mitigation measures for supporting farming system. Integrated water resources management plays critical role in coping climate change. This includes prioritizing water requirements, water harvesting, water conservation, appropriate water allocation, and pollution control. For sustainable farming system development, mitigation strategy should also be included in themechanism covering practices of intermittent irrigation to over come high rate of methane emission. Combining water management and tolerance crops to drought and submergence conditions is very valuable in implementing the mechanisms.

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