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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 34 (2011): Desember 2011" : 6 Documents clear
CARBON EMISSION AND ABSORPTION OF AMELIORANT AMENDMENTS IN PEAT SOIL PADDY RICE SUSILAWATI, H.L.; SETYANTO, P.; ARIANI, M.
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 34 (2011): Desember 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n34.2011.26-32

Abstract

Agricultural land extensification on peat land is one solution to fulfill national needed on food. Peat soil contains organic matter therefore it becomes one source of greenhouse gas emissions (GHG), i.e. Dioxide carbon (CO2), metahne (CH4), and NO2. Land use for agricultural activities will change the natural condition of peat soil. The changes could increase GHG emissions. One way to reduce GHG emissions and to increase rice production in peat soils is by adding of ameliorant. The aim of this study was to determine the effect of ameliorant on carbon balance at peat soil paddy rice. The experiment was conducted at research station of Agricultural Environmental Research Institute in 2008. Samples of peat soil as much as 8 tons was carried from South Kalimantan and placed into 12 microplots. The size of microplot was 1.5 x 1.5 x 0.8 m. Experimental design used randomized block design with four treatments: control, dolomite 2 t ha-1, rice straw 2 t ha-1 and animal manure 2 t ha-1 which was repeated three times. Rice variety was Batanghari and transplanted at age 21 days after seeding. Fluxes of CH4 were measured automatically using GC which equipped with FID (Flame Ionization Detector). Emissions of CO2 and N2O were measured manually using GC which equipped with ECD detector (electron capture detector) and TCD (thermal conductivity detector). The content of organic carbon in plants was determined by dichromate oxidation technique-titration. The lowest of net carbon/ carbon budget is animal manure treatment: 4,962.0 kg-C ha-1 followed by dolomite, without ameliorant, and rice straw: 5,270.2; 9,534.7; and 10,115.6 kg-C/ha respectively. The highest yield is rice straw, followed by dolomite, without ameliorant and manure: 4.98, 4.92, 4.69, and 4.54 t ha-1 respectively. Dolomite treatment has the highest ratio of yield GWP-1 : 933.58 kg of yield/ton of CO2-C followed by animal manure 913.30 kg of yield /ton of CO2-C, without ameliorant and rice straw: 492.13 and 491.59 kg of yield/ton of CO2-C respectively.
Nitrous Oxide Emission on Cropland Management System in Rainfed Rice Field M. ARIANI; R. KARTIKAWATI; P. SETYANTO
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 34 (2011): Desember 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n34.2011.33-39

Abstract

Organic material application for cultivated crops is assumed to be improving the activity of denitrification microbe and N2O emission. Natural N2O emission can increase due to agricultural activity. This activity directly adds the nitrogen input into soil and can be converted into N2O form. The amount of 1,25% N applied into soil as organic manure was transformed into N2O. This research objective is to study the emission of nitrous oxide (N2O) from rainfed ricefield with various crop management system. This research was conducted at Indonesian Agricultural Environment Research Institute (IAERI) in RS 2009 and designed in Randomized Block Design replicated three times with six treatments, ie. (1) Non-Integrated Crop Management (Non ICM)/control ; with anorganic fertilizer as farmer’s suggestion (120 kg ha-1 N, 90 kg ha-1 P, and 90 kg ha-1 K); without organic materials; continuous irrigation (continously flooded), seeds 25 DAS and plant distance 20 x 20 cm. : (2) Non-ICM/Control ; equal to treatment 1 but using the intermittent irrigation; (3) ICM with the continous irrigation, young seed (15 DAS) one seed per hole, fertilization pursuant to schema of leaf colour chart (BWD), organic materials equal to 2 ton / ha, continuous irrigation (continously flooded) and legowo planting system with legowo 2:1 (20-10 cm) x 40 cm. (4) ICM; equal to treatment 3 but using the intermittent irrigation (5) SRI with the intermittent irrigation; organic manure equal to 15 t ha-1, young seed 15 DAS, without anorganic fertilization and plant distance 30 x 30 cm; (6) Semi-SRI, equal to treatment 5 but with half of farmer’s dosage of anorganic fertilizer, with the intermittent irrigation. The result shows that the highest N2O emission yielded by treatment Non ICM equal to 0.23 kg ha-1 season-1 followed by treatment continuously flooded ICM , Non ICM intermitten,SRI intermitten, Semi SRI Intermitten and ICM intermitten 0.22; 0.21; 0.18; 0.13; and 0.10 kg ha-1 season-1 respectively. While, the highest rice yield is gained from treatment Non ICM Intermittent that is equal to 7.99 t ha-1, followed successively treatment of ICM Intermitten, ICM continuously flooded, Non ICM continuously flooded, Semi SRI intermitten and SRI intermitten each of 7.83; 7.42; 7.28; 6.20; and 4.74 t ha-1
CARBON LOSS FROM SEVERAL LANDUSE TYPE ON TROPICAL PEAT LANDS DRAINED MASWAR, .; HARIDJAJA, O.; SABIHAM, SUPANDI; VAN NOORDWIJK, M.
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 34 (2011): Desember 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n34.2011.13-25

Abstract

Conversion Conversion and drainage of peat land stimulate soil organic matter (SOM) mineralization, which substantially increase carbon loss from soils. Carbon losses from peat lands are probably a major component in global greenhouse gas emissions. The objectives of this study are to evaluate carbon loss from several land use of peat drained, and to evaluate factors affected carbon loss from several land use on peat drained. The study was conducted in Nanggroe Aceh Darussalam Province from May 2008 until October 2009. Carbon losses were calculated by interpretation data of bulk density (BD), ash content and carbon content from 0-50 cm top soil of peat lands. Peat lands characteristics i.e. physical, chemical and biological properties were investigated by field observation and analysis of peat soil samples on the laboratorium. The results showed that: 1) ash content and bulk density of the peat are related, indicating the partial lost of soil C during decomposition and compaction, 2) an ?internal tracer? estimate of peat C loss yields estimates of CO2 flux up to 56 t CO2-eq ha-1 year-1 for young oil palm, highly correlated with the measured rates of subsidence of the surface, 3) landscape level variation in maximum water table, salinity and Fe of peat are correlated with measured peat carbon loss.
The Controling of Iron (Fe) Toxicity with Humic Matter from Rice Straw Compost and Water Management to Increasing Productivity Established Rice Field at Sitiung, West Sumatra Herviyanti Herviyanti; T. Budi Prasetyo; F. AHMAD; M. Harianti
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 34 (2011): Desember 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n34.2011.40-47

Abstract

This experiment is held to sudy the potency of humic matter extracted from composted rice straw, combined with the various water management systems, in controlling the iron (Fe) toxicity in new-established rice field. The objective of this research is to get break through technology of controlling the iron toxicity in new-established rice field using the the humic substances and water management systems in order to get the optimum yield. This experiment uses a split-plot design with main plots are having three water management systems : continuous flooding; one week flooding and two weeks in field capacity; and two weeks flooding and two weeks in field capacity and sub-plots are having three levels of humic matter application : no humic matter; with 150 ppm humic matter = 300 kg ha-1; and with 300 ppm humic matter = 600 kg ha-1. The result shows that the application of humic matter extracted from composted rice straw decreases the Fe2+ concentration to be 135.67 ppm and 222.33 ppm in all three water management systems after eight weeks flooding. The best treatment combination is the plot with 600 kg ha-1 humic matter and 1 week flooding-2 weeks in field capacity, for it decreases Fe2+ concentration from 694 ppm down to 310 ppm, and the dry weight of grain is 1,819.7 g plot-1 (1 plot = 6 m2) or raising 770.8 g plot-1 compared with those plots with no humic matter and with continuous flooding.
Effect of Application of Rock Phosphate on Soil P Adsorption and Fractionation at Dystrudepts of Cibatok, Bogor Dedi NURSYAMSI; L. ANGGRIA; . NURJAYA
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 34 (2011): Desember 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n34.2011.1-12

Abstract

Phosphorous fertilization in both lowland and upland is an activity that must be done to increase agricultural production in Indonesia. Farmers typically use an acidulated rock phosphate, such as: TSP, SP-36, or SP-18 where its effectiveness varies depending on the type of soil and cultivated crops. Rock phosphate fertilizers have a high prospect to be used directly inacid upland soils because of its effectiveness equals the acidulated rock phosphate but the price is cheaper. Laboratory experiments aimed at studying the effect of the rock phosphate application on soil P adsorption and fractionation as well as determining the critical level of soil P for maize P-12 variety growth have been carried out using soil samples taken from rock phosphate fertilization experiment in the field, at volcanic Dystrudepts soil in Cibatok, Bogor. Analysis for soil P adsorption Fox and Kamprath (1970) methods were used, while its fractionation used modified Sekiya (1983) methods. The results showed that the use of rock phosphate increased soil soluble P therefore its availability for plant growth increased too. Beside that, it increased all soil P forms as well as soil HCl-P and Bray I-P significantly. P forms in tested soil from high to low were the residual-P > organic-P > Fe-P > Al-P > Ca-P in which the form of residual-P, Fe-P, and total-P played an important role in controlling the availability of soil P. Critical level of soil Fe-P, residual-P, and total-P for maize P-12 variety growth in the soil were 320, 510, and 1,250 mg P2O5 kg-1 respectively.
A Preliminary Criteria and Classification of Land Degradation Level on Dryland (Case Study : Dryland in Bogor Regency) SANTUN R.P. SITORUS; B. SUSANTO; O. HARIDJAJA
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 34 (2011): Desember 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n34.2011.48-65

Abstract

Optimization of dry land utilization in Indonesia including in Bogor Regency is generally still has a lot of constraints. One of the causes is land degradation. At the moment, land degradation inventory is still resulting tentative acreages, since the criterion and overcome priority were different among institutions. This research aims (1) to know variables affecting level of land degradation, and (2) to compose criterion (classes range) andclassification of land degradation level in dry land both for reconnaissance and semi-detail scales based on variables affecting level of degradation. The research was conducted at three subdistricts, namely Sukamakmur, Babakan Madang and Cigudeg subdistricts. Data was collected on surveys through a case study. Biophysical data and soil samples were collected at60 key regions (derived from 3 subdistricts x 5 land critical levels x 4 replications). On each key region, undisturbed and composite soil samples were collected, altogether 60 undisturbed and 60 composite soil samples. The data were analyzed using discriminant analysis and cluster analysis. This research was resulting three criterions (range of classes) for five variables determining level of land degradation for reconnaissance and eight variables for semi-detail scales. The five variables for reconnaissance scale were type of bedrock, slope, conservation practices (P-value), silt percentage, and land use/vegetation (Cvalue). The eight variables for semi-detail scale were type of bedrock, slope, conservation practices (P-value), silt percentage, land use/vegetation (C-value), P-available, exchangeable Al, and H. This research had also generated three degradation levels for reconnaissance and semi-detail scales. The classification of land degradation for reconnaissance scale were (1) slightly degraded land (score <16), (2) moderately degraded land (score 16-39),and (3) strongly degraded land (score >39). Whilst, the classification of land degradation for semi-detail scale were (1) slightly degraded land (score <15), (2) moderately degraded land (score 15-38), and (3) strongly degraded land (score > 38).

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