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INDONESIA
Jurnal Tanah dan Iklim
Published by Balai Besar Penelitian dan Pengembangan Sumberdaya lahan Pertanian
ISSN : 14107244     EISSN : 27227723     DOI : http://dx.doi.org/10.21082/jti.v44n1.2020.19-29
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal TANAH dan IKLIM memuat hasil-hasil penelitian bidang tanah dan iklim dari para peneliti baik dari dalam maupun dari luar Balai Besar Litbang Sumberdaya Lahan Pertanian. Jurnal ini juga dapat memuat informasi singkat yang berisi tulisan mengenai teknik dan peralatan baru ataupun hasil sementara penelitian tanah dan iklim.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "No 25 (2007): Juli 2007" : 6 Documents clear
THE INFLUENCE OF VOLCANIC MATERIALS ON THE PROPERTIES OF PADDY SOILS PRASETYO, BAMBANG HENDRO; SUGANDA, HUSEIN; KASNO, ANTONIUS
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

Three pedons of paddy soils classified as Oxyaquic Eutrudepts from Pati, Typic Endoaquerts from Ngawi and Vertic Endoaquepts from Klaten have been studied pedogenetically based on their physical, mineralogical and chemical properties. For this purpose as many as 15 soil samples were analyzed in Laboratory. The results indicated that all pedons were influenced by different materials. The top soil of paddy soil from Pati wascovered by sediment material which was dominated by quartz, while sub soils was influenced by volcanic materials consist of association labradorite-hornblende minerals. Paddy soil from Ngawi continuously influenced by volcanic materials in all profile with association of labradorite-hornblende, while paddy soil from Klaten which was derived from volcanic alluvium showed domination of primary mineral in their association, e.g labradoritehornblende- augite-hypersten. The clay mineral composition in all paddy soils were dominated by smectite, with a lesser extends kaolinite and halloysite. The higher content of kaolinite in the top layer of paddy soil from Pati was formed from sediment materials, while in all sub soils kaolinite and haloisite were formed from weathering of labradorite from volcanic materials. Chemically, all pedons are fertile, the main difference is on the ratio of Ca/Mg. Paddy soils from marl (Pati and Ngawi) have Ca/Mg ratio ranging between 5:1 and 12:1, while paddy soil from alluvium (Klaten) is about 2:1. The influence of volcanic materials gives a positive impact on paddy field properties, especially in the source of nutrients but could not modify the Ca/Mg ratio.
Detecting Tidal Flood Pattern with Landsat TM Remote Sensing Data in South Sumatra Coastal Area KUSUMO NUGROHO; U.S WIRADISASTRA; S. ARSYAD; HIDAYAT PAWITAN; . SUDARSONO
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

Detecting the availability of sufficient water in tidal land management is important for agriculture. Tidal flood pattern provides an information of area where has tidal flood as well as drought by time and places. The objectives of this research are 1) to study the tidal flood spatial pattern by using real time data and digital data image processing, 2) to determine a tidal flood classification based on ground water level on a specific locationand time, and 3) to study the hydrological factors affecting the flood. The tidal flood pattern can be classified within a block by their ground water fluctuation. The visual analysis with four image of different time, gives a clear differences between tidal flood pattern change and tidal fluctuation. The classification on the moist Landsat TM image after a Tesseled Cap transformation can produce classified image with similar flooded condition with the same range of ground water level. After the test, the tidalflooded pattern was found similar with the classification results. The tidal flood pattern is also recognized having a specific relationship with land use or land utilization type. The land use and land management affect the pattern. The application of geographical information system, especially remote sensing digital image data analysis, will help in determining tidal flood pattern as well as the ground water spatial pattern.
Characteristics and Management of Acid Soils Derived from Volcanic Rocks for Extensification of Maize in Sukabumi, West Java DJADJA SUBARDJA
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

Acid soils derived from volcanic rocks on wet climate of upland agriculture in the centre of maize production areas in Sukabumi, West Java are characterized by acid to strongly acid soil reaction (pH<5.5), low to very low base saturation, low to medium cation exchange capacity of clay, and medium to high aluminum saturation which could be a toxic and influencingphosphate availability. Composition of sand fraction indicates that parent material of soils was an intermediated volcanic rock, dominated by intermediated plagioclass i.e. andesine and labradorite, and mafic minerals of ferromagnesian i.e. hyperstene, hornblende, while clay fraction is dominated by type of 1:1 (halloysite and kaolinite). Generally, soils are deep, brown to reddish brown, clayey textured, crumb to fine sub angular blocky structured, friable, well drained, and moderatelly wellpermeability. Soils have an isohyperthermic temperature regime and udic soil moisture regime. Soils are classified as Brown Latosol and Reddish Brown Latosol or equal to Humic Dystrudepts and Typic Hapludults. Typic Hapludults much more developed and weathered than Humic Dystrudepts, therefore it has low fertility. Physically, soils are good medium for development of maize roots. But chemically are not suited for maize growth especially on Typic Hapludults. Therefore, they need specific soil management to improve soil productivity by increasing input of fertilizers, liming and organic matter based on soil characteristics and crop needs.
Evaluation of Soil Properties of the Alluvial Landform in Three Locations of Donggala Regency, Central Sulawesi . HIKMATULLAH; . SUKARMAN
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

Alluvial landforms in Donggala Regency, Central Sulawesi, are main agricultural land, but information of soil properties has not been yet studied and published. The objectives of the study were to evaluate soil physical, chemical and mineralogical properties of alluvial landform and potential fertility for agriculture. Five pedons from Palu valley, five pedons from northcoast and three pedons from west coast of Donggala regency were selected for laboratory analyses. The pedons represent dominant soil groups, consisting of Ustifluvents, Haplustepts, Eutrudepts, and Endaoquepts. To evaluate soil property differences among the locations, a paired test comparison was applied. To compare clay or organic carbon contents with CEC soils, a multiple linier regression was applied. The results indicatethat the soils of the areas have loamy sand to sandy clay loam textures, slightly acid to slightly alkaline, low to very low organic carbon contents, high P2O5 and K2O (extracted by HCl 25%) contents, medium to high available P2O5 (extracted by Olsen), low soil CEC, high clay CEC and base saturation. The soil properties showed wide variation with coefficient variation (CV) ranging from 23 to 98%, except for pH and base saturation (CV<20%). The results of pair test comparison indicated that sand content, total K2O, and available P2O5 were differ very significantly for all pairs, whereas clay, silt, and organic carbon contents, CEC soil and CEC clay were differ very significantly only for two pairs of the locations that was between Palu vallley and north coast and west coast. The results of multiple linierregression analyses show that clay content has closer relationship to CEC soil rather than organic carbon content. Composition of sand mineral fraction was dominated by quartz and rock fragments, but it shows relatively high weatherable minerals (12-46%), while clay mineral was a mixture of smectite and illite. The potential fertility of the soils was relatively good,with main contraints of low organic matters and low soil CEC. Incorporation of organic matters, such as green manure and crop residues, is suggested to improve and increase CEC soils and nutrient availability.
The Characteristic of Soil Developed from Felsic Sediments in West Kalimantan Province and Its Implication to Land Manageme NATA SUHARTA
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

Reconnaisance soil survey at 1:250.000 scale in West Kalimantan Province has been done covering 5.5 billion hectare. Result show that parent material governs formed soil properties. This research aimed to discuss soil properties developed from felsic sediment parent material in West Kalimantan Province and its implication to land management. As much as 100 pedons from felsic sediment parent material has been investigate in the field and in the laboratory for particle size distribution and chemical properties. Results show that particle size distribution or soil texture depend on parent material (sandstone, siltstone or claystone). Developed soil show acid soil reaction, ion organic material, ion P and K, ion exchangeable bases, ion base saturation, variable cation exchange capacity. Meanwhile, Al saturation is high and correlate positively with clay content. Soil properties that influence land management are particle size distribution and chemical properties. Land management showed be directed to increase soil pH, to decrease Al reactivity, to increase soil P and K, organic matter and exchangeable bases.
Effect of Ball Milling under Various Conditions on Several Physicochemical Properties of Rock Phosphate Fertilizer JOKO PRIYONO
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Abstract

A laboratory study was conducted to identify the effects of milling under various conditions, including use of water and potassium as milling lubricants, on several physicochemical properties of rock phosphate fertilizer. The identified properties were the XRD patterns, particle size distribution, surface area, and NaHCO3-extractable P of the fertilizer. Milling for 2 hourssignificantly reduced particle size, promoted amorphization,increased surface area and amount of extractable P in 1N NaHCO3 of rock phosphate fertilizer, with those effects for dry milling were much greater than for wet milling. Wet milling and use of additives (KCl and K-feldspar) minimized the occurrence of agglomeration during milling process. Although further tests in soil-plant system are required, dry milling may be recommended as a simple method for manufacturing an agronomically effective P + K fertilizer.

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