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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 212 Documents
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Association of Soil Minerals and Organic Matter and Their Impact on pH Value MARKUS ANDA
Jurnal Sumberdaya Lahan Vol 2, No 1 (2008)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v2n1.2008.%p

Abstract

Clay and organic colloids are two factors that control major, if not all, chemical, physical and biological processes and soil properties but maintaining soil organic matter content under tropical conditions is difficult. The objectives of this review are to explore association between minerals and organic substances, mechanisms underlying the stabilization of soil organic matter, and their implication on pH0 of soil variable charge component. The modes of interaction in clay-humus complexes may occur through anion and ligand exchange to the crystal edges, cation or water bridge to basal surfaces, H-bonding to the siloxane or gibbsite sheetby van der Waals forces attraction (physical bonds), entrapment in crystal pores and intradomain regions, and adsorption in interlayer spaces. Organic matter preservation was related to amount of clay fraction, type of clay mineral present and aggregate formation. High preservation occurs in soils having high clay content, the presence of 2:1 minerals and amorphous minerals (allophane and imogolite), and a larger aggregate size. Current knowledge indicates that the mechanisms of soil organic matterstabilization are: (i) chemical recalcitrance involves elemental composition, the presence of functional groups, and molecular conformation of organic substances against decomposition by microbes and enzymes; (ii) chemical stabilization occurs through adsorption of functional groups to clay mineral surfaces and amorphous sesquioxides; (iii) physical protection involves organic substances being protected by clay fractions in soil pores, especially mesopres (2-50 nm) that limits the accessibility of microbes andenzymes. Soil organic matter is powerful in masking reactive mineral surfaces and generating soil negative charge, which is revealedby the low value of pH.
Empowerment of Land Resource to Increase Competitiveness and Added Value of Agricultural Product SUBOWO GITOSUWONDO
Jurnal Sumberdaya Lahan Vol 3, No 2 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n2.2009.%p

Abstract

In global free trade action, Indonesia has many rivalry constrain to involve on standart product quality need which determined by developed countries from subtropical area. Agriculture product added value based on tropical natural resource is not accommodated proportionally, so that the Indonesian farming system has faced many obstacle resulting low competitive. Competitiveness digging of Indonesian specific land resource is a step in the right direction to do, besides it can increase competitiveness and has protected by regionally regulation. The Indonesian spatial competitiveness are sun energy, rainfall, mineral deposit, diversity of agricultural commodities, geographical position, and agricultural land availability for spell of production. Agricultural production arrangement that considering land capacity and specific competitiveness will increase production efficiency, added value, and selling product. Arrangement of spatial plan of various commodities and correct zonation based on need and location of market will increase competitiveness and farmer welfare. Functional food development, commodity choice, harvest area placement and harvest time arrangement are absolute competitiveness of Indonesian agricultural product and can not be competed by other region.
Capturing the Benefit of Groundwater for Water Resources Sustainability POPI REJEKININGRUM
Jurnal Sumberdaya Lahan Vol 3, No 2 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v3n2.2009.%p

Abstract

Groundwater is the water contained in soil or rock layer below the surface. Ground water is one of the limited water resources and the damage can give a broad impact, whereas its recovery is difficult. In addition to river water and rain water, ground water also has a very important role, especially in maintaining the balance and availability of raw water for domestic or industrial purposes. In some areas, dependency on fresh water and ground water supplies has reached ± 70%. Lack of understanding on groundwater condition that occurred in the community, arises problems that become the lost and threaten to life sustainability of the community itself. It is necessary for planning the utilization of groundwater that environmentally oriented based on the stage that includes an inventory of potential groundwater, utilization planning, licensing, monitoring and controlling, and conservation of groundwater. Inventoring of potential groundwater utilization planning, licensing, monitoring and controlling should be based on existing procedures so that utilization can be optimized without causing negative impacts.
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.
DEVELOPMENT OF NATIONAL CLIMATE DATABASE SYSTEM FOR SUPPORTING AGRICULTURE RESEARCH ELEONORA RUNTUNUWU
Jurnal Sumberdaya Lahan Vol 4, No 1 (2010)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v4n1.2010.%p

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
Karakteristik Tanah dan Strategi Rehabilitasi Lahan Bekas Tambang Timah di Provinsi Kepulauan Bangka Belitung S. Sutono; Umi Haryati; Fahmuddin Agus
Jurnal Sumberdaya Lahan Vol 12, No 2 (2018)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v12n2.2018.99-116

Abstract

Abstrak. Pasca penambangan timah menyisakan sebagian berupa lahan pasir tailing yang mempunyai tekstur pasir dengan proporsi fraksi pasir >80%, debu dan liat keduanya <20%. Lahan ini merupakan lahan sangat miskin bahan organik dan hara, sukar menyimpan air, sulit merehabilitasinya karena memerlukan input tinggi. Tulisan ini membahas karakteristik dan dinamika hara tanah pada lahan bekas tambang timah serta teknik pendekatan rehabilitasi lahan tepat guna menanggulangi faktor pembatas lahan pasir tailing timah agar mampu menghasilkan produk berupa komoditas pertanian. Sampai saat ini tanah mineral liat dan bahan organik merupakan bahan yang secara ekonomis murah dan secara teknis mudah dilakukan. Memperbaiki kemampuannya menyimpan hara dan air merupakan kunci keberhasilan merehabilitasi lahan pasir tailing timah. Pendekatan inilah yang seharusnya menjadi pedoman umum dalam merehabilitasi lahan pasir tailing timah untuk dijadikan lahan pertanianAbstract. Post tin mining leaves a portion in the form of tailings sand which has a sand texture with a proportion of sand fraction >80%, both silt and clay <20%. This land is a very poor of organic matter and nutrients, it is difficult to store water. Therefore to rehabilitate it is very difficult and high input is needed. This paper examines the characteristic and dynamics of soil nutrients in abandoned tin-mining area and the appropriate land rehabilitation techniques to overcome the limiting factor for tin tailings sand to be ability and can produce agricultural commodity products. Clay soil mineral and organic material is a material that is economically inexpensive and technically easy to do. Improving its ability to store nutrients and water is the key to the success of rehabilitating tin tailings sand fields. This approach should be a general guideline in rehabilitating tin tailings sand land to be used as agricultural land.
Harnessing Nutrients From Seawater For Plant Requirment M PRAMA YUFDY
Jurnal Sumberdaya Lahan Vol 2, No 2 (2008)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v2n2.2008.%p

Abstract

Numerous research findings have informed that nutrients for plant requirement can be explored from seawater. Apart of its high salinity, seawater contain high amount of cations. Efforts have been done to produce K fertilizer from seawater. In some countries, seawater based agriculture has also developed. Though, sodium concentration is very high in seawater, it is known as a beneficial nutrient to plant, and in some cases it can replace part of K function. Numerous research findings have shown that Na is essential for non-halophyte crops such as rice and tomato. Sodium is also essential for many crassulacean acid metabolism (CAM) species. Since pineapple is classified as CAM species, it has proven in a study indicated that some of K requirement can be substituted by Na from seawater when it was applied in diluted solution. Thirty percent of K fertilizer substitution by Na from seawater plus 70% K from KCl for pineapple can play the role of 100% K (300 kg/ha) for production of fruit fresh weight, without having any negative effects on the soil and plant. To make seawater worth pursuing for nutrients source, it needs to identify the potential crops that tolerant to salinity and the potential crops that require Na as nutrient as well as to partially substitute K. The opportunity is very high in Indonesia since the country has very large agricultural areas located close to the sea.
Efficiency Strategy of Organic Matter Use for Soil Fertility and Productivity by Soil Biology Resources Empowerment SUBOWO GITOSUWONDO
Jurnal Sumberdaya Lahan Vol 4, No 1 (2010)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v4n1.2010.%p

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.
Silvopasture and its Impacts to Microclimates, Soil Properties, and Carying Capacity on Semi Arid Grass Land of West Nusa Tenggara Province, Indonesia I GEDE PUTU WIGENA
Jurnal Sumberdaya Lahan Vol 5, No 1 (2011)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v5n1.2011.%p

Abstract

In West Nusa Tenggara Province, natural pasture is one of important forage sources for cattle feed. Due to its agroclimate condition, carrying capacity of the native pasture is usually low. Wider variation has been observed between wet and dry seasons, and it has significant effects to cattle population. Based on the issue, a medium term of land management by introducing of silvopasture combined with legume trees, high yielding varieties of grasses, and fast growing leguminous shrubs, has been done during 1995/96-1998/99 period. The aim of the research was to increase carrying capacity of the natural pasture based on the improvement of microclimate condition, soil properties, and carrying capacity. The experiment used split-plot design with three replications. Implementation of silvopasture in the form of wind breaker (WB) and non wind breaker (NWB) are as main plot, carrying capacity estimation (grazing and cut systems) as sub plot, while introducing high yielding varieties of grasses and fast growing legume as sub-sub plot. Observation during four years showed that silvopasture could improve microclimate conditions indicated by decreasing of air temperature from 27.9-40.0oC into 22.0-38.9oC, increasing of air humidity from 62.6-93.6% into 77.1-89.1% and decreasing of saturation steam pressure deficit from 3.4-26.3 into 0.5-14.8. Soil organic matter increased almost 200% on the 3rd year and soil nitrogen increased almost 300% on the 4th year of experiment. Silvopasture system (wind breaker treatment) could increase carrying capacity grass land that varied from 1.16 to 1.75 animal unit (AU) of cattle/ha/year, while carrying capacity of non wind breaker varied from 1.10 to 1.37 animal unit (AU) of cattle/ha/year.
The Characteristics of Rice Soils Derived from Alluvial Deposite and their Management BAMBANG HENDRO PRASETYO; DIAH SETYORINI
Jurnal Sumberdaya Lahan Vol 2, No 1 (2008)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v2n1.2008.%p

Abstract

Rice soils derived from alluvial deposite were spread almost in all Indonesian archipelago, due to the fact that the parent materials were resulted from sedimentation processes after erosion or weathering either in the upper course of river or the higher place, from the far or short distance. Generally the more distance of sediment material from the source of erosion or weathering, the more variation in the properties, and the closer of sediment material from the source of erosion or weathering, the more homogeny of the sediment material properties. The content and kind of weatherable mineral which were act as important source of nutrient inthe rice soils were influenced by parent materials. Among the parent materials, the sediment from intermediate to basic volcanic materials was the best supplier of nutrients. The most constrain in the alluvial rice soils are acidity and the nutrient content or source of nutrients. A balanced fertilizing based on soil testing is the best way to manage alluvial rice soils. For the area which is already had P and K nutrient status map at 1:50,000 scale, the fertilizing recommendation of primer macro nutrients could be refered to the map, while for the area that do not has a P and K nutrient status, the soil testing analyses should be done. Return straw to the ricefield is strongly recommended, because returned straw could be thrifty application of fertilizer, especially kalium (K).

Page 16 of 22 | Total Record : 212

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