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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 5 Documents
 1 
Search results for , issue "No 23 (2005): Desember 2005" : 5 Documents clear
The influence of Land Quality on Productivity of Maize in Soils Derived from Volcanic and Sedimentary Rocks in the Bogor Area DJADJA SUBARDJA; . SUDARSONO
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 23 (2005): Desember 2005
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n23.2005.%p

Abstract

Land quality has a good relationship with the productivity of maize which is influenced by parent materials and soil development, especially the nutrient retention and aluminum toxicity. Nutrient availability is strongly influenced by land management. On the intensively land use and continuously fertilizer applied is showing a high content of available P at top soil and give a high yielding of maize. Result of land evaluation in the study area by using the existing criteria of land suitability of maize indicated the same class of land suitability of S3 and therefore not suited to the field condition. The main limitation was a nutrient retention (i.e. pH, base saturation). Nutrition availability of available P and toxicity of aluminum are excluded in the criteria. Land suitability criteria of maize were built by relevant land qualities and productivity of maize gave more realistic and quantitative results of land suitability of the area. The most influenced of land quality to the maize productivity are nutrient availability, nutrient retention and aluminum toxicity by mean of land characteristics of available P, pH and exchangeable Al. A few data required for land evaluation and therefore it will be easily to be processed, faster, efficient and accurately. Application of the P fertilizer and liming are strongly recommended for the area, especially on the acid soils of sedimentary rock to increase the productivity of maize.
CHARACTERISTICS OF VOLCANIC ASH SOILS FROM SOUTHERN PART OF MT. TANGKUBAN PERAHU, WEST JAVA YATNO, EDI; ZAUYAH, S.
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 23 (2005): Desember 2005
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n23.2005.%p

Abstract

Three soil pedons developed on young andesitic volcanic ash with high mineral deposit and high P retention, granular soil structure, high porosity, and low bulk density, were differentiated based on their morphological, physical, chemical and mineralogical characteristics. Pedons 1 and 3 are discontinue or bisequm pedons characterized by the presence of more contrast colour and new buried materials on layer 4, while pedon 2 isrelatively younger than pedons 1 and 3. Mineralogical composition of pedons 1 and 3 is very different compared with pedon 2. Pedons 1 and 3 have high total porosity resulting in easy to the soil leaching. Pedon 2 with higher bulk density tends to be more compact although its soil texture is light, indicating soil character of Andisols from this young volcanic material. High P retention and low base saturation may bring about high Pfertilizer need. Pedons 1 and 3 have lower feldspar content as K sources compared with pedon 2, while the content of opaque minerals is higher in pedons 1 and 3 indicating more developed pedons. The top layer of pedon 1 has lower opaque minerals but higher hornblende than pedon 3 due to different land use. The presence of alophane minerals in pedon 1 and 3 can be detected from the results of Selective Dissolution Analysis, but they do not detected on X-ray diffraction patterns. In pedon 2, however, alophane minerals show convex diffraction patterns. Based oncharacteristics of their soil physics, chemistry, and mineralogy, pedons 1 and 3 were classified as Thaptic Hapludands, and pedon 2 as Typic Melanudands. The increase of P availability on the three pedons can be done by P fertilization and liming to accelerate substitution of Al-P to Ca-P and increase of soil pH.
Soil Quality of the Land under Coffee-Based Farming System (Case Study at Sumberjaya, West Lampung) AI DARIAH; F. AGUS; . MASWAR
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 23 (2005): Desember 2005
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n23.2005.%p

Abstract

Forest conversion to coffee-based farming systems has raised concern among many stakeholders since it may create serious impact to the deterioration of forest functions, declining soil productivity in particular and land degradation in general. Study on the impact of forest conversion on changes of soil quality, and the role of coffee for soil quality recovery has been conducted at Bodong and Laksana Sub Village of Sumberjaya Village, West Lampung. In Laksana, the observed landuse consisted of young (< 3 years) coffee plantation, mature (> 10 years) coffee, mix farming (multistrata), caliandra and forest, while in Bodong are young and mature coffee plantations and forest. The soil quality parameters used in this experiment were soil organic matter status and soil physical properties. Changes of soil quality as affected by forest conversion to coffee farming depends on soil resistance (resilience to structural break down). Soils with low resistance are easier to degrade than those with high soil resistance. The mix (multistarata) system shows better impact on soil quality than monoculture system does.
Maize (Zea mays, L.) response on Fertilization of Russian MOP in Inceptisols and Ultisols DEDI NURSYAMSI; . HUSNAIN; ANTONIUS KASNO; DIAH SETYORINI
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 23 (2005): Desember 2005
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n23.2005.%p

Abstract

Indonesia’s agricultural lands commonly require fertilization of K to attain optimum plant yield. So far, most farmers use K fertilizer from KCl, apart to the fact that its effectiveness varies with soils and plants. It is expected that Russian MOP fertilizer is more effective and economically morebeneficial than KCl fertilizer. Field experiment aimed to test the effectiveness of Russian MOP for maize and was conducted in Inceptisols (of Cibatok-Bogor) and Ultisols (of Jagang-North Lampung) in dry season of 2004. The experiment applied Randomized Completely Block Design with 3 replicates, and maize of Lamuru variety was as plant indicator. The treatment consisted of 5 levels of Russian MOP fertilizer: 0, 25, 50, 100,and 200 kg ha-1 and one treatment of KCl fertilizer of 100 kg ha-1 as a reference. The result showed that the use of Russian MOP increased soil HCl-K and NH4OAc-K as well as dry matter and grain yield. RAE at Russian MOP level of > 100 kg ha-1 was 138 and 115 in Inceptisols of Cibatok and 314 in Ultisols of Jagang. The maximum profits using Russian MOP fertilizer in Inceptisols and Ultisols were Rp 4.4 and Rp 1.9 million ha-1 season-1, respectively, and were greater than those of using KCl fertilizer in both studied soils. IBCR values of the Russian MOP fertilizer were 2.44-10.37 (Inceptisols) and 0.69-3.41 (Ultisols) and were greater than those of KCl fertilizer. The requirements of Russian MOP fertilizer to achieve maximum profit were 119 and 105 kg ha-1 or equal to 71 and 63 kg K2O ha-1 for Inceptisols of Cibatok and Ultisols of Jagang, respectively. Considering its effectiveness and benefit, Russian MOP fertilizer can be used as alternative of K fertilization.
Ultisols from Andesitic Volcanic Materials: the Differentiation in Fertility and Management Potential BAMBANG HENDRO PRASETYO; DJAJA SUBARDJA; B. KASLAN
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 23 (2005): Desember 2005
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n23.2005.%p

Abstract

Ultisols from andesitic volcanic material in lower slope of Mt. Ungaran are different from other Ultisols, especially in their exchangeable aluminum content, P nutrient status (retention and available P), and mineralogy of sand fraction which is dominated by opaque mineral. Interpretation results of physical, chemical, and mineralogical data from six representative soil profiles inform that Ultisols in the reconnaissance map of Central Java consist of three groups: (1) Oxisols (pedons P1 and P2) due to their clay CEC of < 16 cmolc kg-1, even though the soil structure is angular blocky, (2) Ultisols (pedons P3, P4, and P5), and (3) transition from Inceptisols to Ultisols (pedon P6) due to the unclear argillic horizon and broad form of x-ray diffraction pattern. Domination of opaque mineral indicates that nutrient retention is low for a long time. Exchangeable aluminum in the first and second group are very low and not detectable, except in the third group. Available P in the first group is moderate, while in the second group is low (P3 and P5) and high in P4. This condition indicates that theavailable P is influenced not only by aluminum but also by other factors needed to be further studied. Low available P in the third group is due to fixation of P by aluminum. Based on the soil fertility characteristics, mineralogy, and pedogenesis of every group, development of tree crops (such as rubber) in the second group should consider to overcome clay accumulation (or argilic horizon) which may constrain root development. The first group needs addition of organic matter to increase nutrient retention and improve soil stucture.

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