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The Characteristics of Rice Soils Derived from Alluvial Deposite and their Management PRASETYO, BAMBANG HENDRO; SETYORINI, DIAH
Jurnal Sumberdaya Lahan Vol 2, No 01 (2008): Juli 2008
Publisher : Indonesian Center for Agriculture Land Resource Development

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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).

Institutional Innovation of Integrated Cropping Calendar Information System to Support Climate Change Adaptation for National Food Security Runtunuwu, Eleonora; syahbuddin, haris; Ramadhani, Fadhlullah; Setyorini, Diah; Sari, Kharmila; Apriyana, Yayan; Susanti, Erni; Haryono, Haryono
Pengembangan Inovasi Pertanian Vol 6, No 1 (2013): Maret 2013
Publisher : +622518321746

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Government of Indonesia has set the rice surplus target of 10 million tons in 2014. This program requires integrated and comprehensive efforts of all stakeholders in central and local levels. The policy was set forth in form of Permentan No. 45/2011 and then implemented by the Director General of Indonesian Agency for Agricultural Research and Development (IAARD) through a decree No. 178.1/Kpts/OT.160/I/7/2012 about For- mation of Integrated Cropping Calendar and Climate Change Task Force in each Assessment Institute for Agricultural Technology (AIAT) for whole Indonesia. Additionally, IAARD has developed an Integrated Cropping Calendar Information System as a reference for policy makers in planning food crop management. The information system contains the next planting season estimation at sub-district level, which includes the initial time of planting, disaster-prone areas (flood, drought, and pests/diseases), as well as technology recommendation (varieties, seed, and fertilizer). In order to make an operational standard for AIAT Task Force, the Technical Guideline of Integrated Cropping Calendar and Climate Change is imperative. This article contains the summary of the technical guideline for AIAT Task Force in support of Permentan No. 45/2011 and climate change adaptation for food security. An implication of implementation of the AIAT Task Force is an important part in improving the content of Integrated Cropping Calendar Information System that fits the needs of farmers and extension workers in the field in order to achieve the rice surplus target.Â Â Â

KEMAMPUAN SISWA KELAS VII SMP PLUS AT-THOIBA KOTA PEKANBARU T.A 2013/2014 DALAM MEMBACA CEPAT Nazirun, Nazirun; Hermaliza, Hermaliza; Setyorini, Diah
Perspektif Vol 5 No 9 (2014): Perspektif Pendidikan dan Keguruan
Publisher : UIR Press

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Reading is an important activity, they are a fast readingandsilent reading. To boost reading skills one of them is fast reading. The problem of this research is how much the speed reading of class VII SMP PLUS AT-THOIBA Pekanbaru AcademicYear 2013/2014. How students class VII PLUS ATTHOIBA Pekanbaru academic year 2013/2014 in speed reading. This study aims to describe, analyze, interpret ability of the student class VII PLUS AT-THOIBA Pekanbaru academic year 2013/2014 in speed reading. The population is full sample comprised 28 students of class VII PLUS AT-THOIBA. This research method is descriptive method with quantitative approach. The theory used is Henry Guntur GM (1986), Abdul Razak (2005), Tampubolon (2008), Dalman (2010), Sudirman (2010), Nurgiantoro (2011). Analysis using the formula based on Tampubolon research, and evaluation criteria based SBC (2007) The results of the research capabilities of the first hypothesis stated that speed reading at class VII SMP PLUS AT- THOIBA Pekanbaru academic year 2013/2014 city in fast reading is low with less speed 60-90 wpm and students read high category is 104 wpm. The second hypothesis states that the reading ability of students of class VII PLUS AT-THOIBA Pekanbaru academic year 2013/2014 in fast reading is enough to 50-69 with less categoriy. It is shownthat the average of students’ ability who obtained 80. As summary,fast reading at class VII SMP PLUS AT- THOIBAPekanbaru academic year 2013/2014 is high category with 104 wpm, and the ability of the student class VII PLUS AT-THOIBA Pekanbaru academic year 2013/2014 is quick fast in reading category.

THE CHARACTERISTICS OF RICE SOILS DERIVED FROM ALLUVIAL DEPOSITE AND THEIR MANAGEMENT PRASETYO, BAMBANG HENDRO; SETYORINI, DIAH
Jurnal Sumberdaya Lahan Vol 2, No 1 (2008)
Publisher : Indonesian Center for Agriculture Land Resource Development

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).

Response of Peanut due to Application of Dolomite Plus Sutriadi, Mas Teddy; Setyorini, Diah
JOURNAL OF TROPICAL SOILS Vol 17, No 2: May 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i2.143-150

Most developing areal for peanut crop (Arachis hoypogeae) is upland, that is dominated by parent soil and has acidcharacteristis. Main constraints for this soil are pH and low soil productivity. Dolomite plus is a dolomite ameliorant,with phosphate nutrient. The dolomite plus beside as the ameliorant and a source of magnecium and calciumnutrients, also as a source of phosphate nutrient. The objective of the research was to study effectivity of dolomiteplus on peanut growth in Inceptisols soil. This research was conducted in the greenhouse using a randomizecompletely designed with 8 treatments and 5 replications. The treatments were control, NPK, and combinations ofNPK with six dolomite plus levels. Relative Agronomic Effectiveness (RAE) analyses was used determine to theeffectivity of dolomite plus. The result showed that application of dolomite plus 1,600 kg ha-1 with NPK fertilizerincreased dry weight of grain yield untill 27% (11.53 to 14.65 g plant-1) compared to NPK fertilizer application alone,that was showed by RAE > 100% or among 171-251%. Application of dolomite plus with NPK increased soil pH, soilavailable P (Bray 1), Ca and Mg exchangeable, and CEC as 1.9 unit; 6.2 mg kg-1; 15.87 cmol(+) kg-1; 14.27 cmol(+)kg-1; and 17.29 cmol(+) kg-1 respectively. Maximum rate of dolomite plus was 2,500 kg ha-1 with the yield was 14.2 gplant-1 grain dry weight. The rate of dolomite plus that was higher than 2,500 kg ha-1 could decrease the yield[How to Cite: Sutriadi MT and D Setyorini. 2012. Response of Peanut due to Application of Dolomite Plus. J Trop Soils 17: 143-150. Doi: 10.5400/jts.2012.17.2.143]Â [Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.2.143]

Solubility of Rock Phosphate and its Effect to the Growth and Yield of Maize on Ultisols Kasno, Antonius; Setyorini, Diah; Dwiningsih, Sutisni
JOURNAL OF TROPICAL SOILS Vol. 13 No. 1: January 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i1.11-22

Phosphor is a macro nutrients and it becomes the main limiting factor for maize growth on Ultisols. Rock phosphate is one of P fertilizer sources contains high P and Ca content, slow release and soluble under acid condition, suitable for acid soil. The objective of this research is to study the solubility of rock phosphate and its influence to the growth and yield of maize on Ultisols.Â This research was conducted in the research laboratory and the green house of Indonesia Soil Research Institute (ISRI). Ultisols soil samples were taken from oil palm plantation in North Sumatera. Christmas Island Rock Phosphate (CIRP) and Tunisia rock phosphate was used in this research. There are two activity conducted simultaneously, which is application of rock phosphate on Ultisols under plant indicator and without plant. The experimental design is randomized complete block design with 5 treatments and 3 replications. The pot experiment without plant was conducted using1 kg of soil sample mixed with rock phosphate treatment and placed into plastic plot.Â During 3 months of incubation, soil water content was maintained under field capacity by aquadest.Â The dosages of P fertilizer were 0, 157.6 and 315.2 kg P2O5 ha-1. Soil samples were taken on 1, 2, and 3 months after P fertilization for measuring pH, P content (by HCl 25 %, Bray 1 and Olsen extraction), P-inorganic fractionation (Al-P, Fe-P, Rs-P and Ca-P), exchangeable acidity (Al and H), Al and free of Fe oxide. The pot experiments with maize were conducted using 7.5 kg soil samples mixed with 2 different rock phosphates as a treatment. The dosages of rock phosphate were similar with experiment 1. Urea 300 kg and 150 kg KCl ha1 were applied as a basal fertilizer. Maize was planted two seed per pot and maintain until harvest time. The result of the research shows that soil P content increase with RP application, Tunisia rock phosphate give higher response than the CIRP. Direct application of rock phosphate with Fe and Al content did not increase significantly the Aldd, Al2O3 and Fe2O3 content on soil.Â Application of CIRP and Tunisia rock phosphate increased maize growth and yield significantly.

Penentuan Kebutuhan Pupuk Kalium dengan Uji K-Tanah untuk Tanaman jagung di Typic Kandiudox Sutriadi, Mas Teddy; Setyorini, Diah; Nursyamsi, Deddi; Murni, Andarias Makka
JOURNAL OF TROPICAL SOILS Vol. 13 No. 3: September 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i3.179-187

Fertilization of K is very important to increase product agriculture besides fertilization of N and P. In this time usage fertilizer not yet proportional and rational, such as those which happened in usage rice field fertilizer of K for the crop of paddy tend to excessively. The other way in the upland needing more fertlizer but fertilized slimmer or is not fertlized K. Proportional and rational fertilization can reach if pay attention the nutrients dynamics and soil status, and also requirement of nutrient for this crop to reach optimum production. This approach can be executed better and profit if fertilization recommendation based on by result of research soil testing.Â Research goal to to determine requirement of K fertilizerÂ for maize in Typic Kandiudox. The experiments used split-plot design, as main plot are five status nutrients and as sub plot are five treatments of K levels, three replications. The levels of K treatment were 0, 20, 40, 80, and 160 kg K/ha from KCl fertilizer and as indicator crop was maize cultivar P-12. Â The result showed that NH4OAc. pH 4,8, NH4OAc. pH 7,0, and HCl 25% were selected extraction methode to estimate K fertilizer requirementÂ for Maize (Zea mays L.) in Typic Kandiudox and NH4OAc. 1 N pH 4,8 was the best extractan, because get highest coefisien corelation. The K status can be grouped into three classes of availability of K are low, medium, and high with the critical limit for each extractan are 5,0; 10,0; dan 130 mg kg-1 K2O for NH4OAc. 1 N pH 4,8, NH4OAc. 1 N pH 7,0, and HCl 25 % extractants respectively. Optimum dosages of K fertilizer was 150 kg ha-1 and 75 kg ha-1 KCl each for the low and medium status and do not be fertilized for the high status.

Response of Peanut due to Application of Dolomite Plus Sutriadi, Mas Teddy; Setyorini, Diah
JOURNAL OF TROPICAL SOILS Vol. 17 No. 2: May 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i2.143-150

Most developing areal for peanut crop (Arachis hoypogeae) is upland, that is dominated by parent soil and has acidcharacteristis. Main constraints for this soil are pH and low soil productivity. Dolomite plus is a dolomite ameliorant,with phosphate nutrient. The dolomite plus beside as the ameliorant and a source of magnecium and calciumnutrients, also as a source of phosphate nutrient. The objective of the research was to study effectivity of dolomiteplus on peanut growth in Inceptisols soil. This research was conducted in the greenhouse using a randomizecompletely designed with 8 treatments and 5 replications. The treatments were control, NPK, and combinations ofNPK with six dolomite plus levels. Relative Agronomic Effectiveness (RAE) analyses was used determine to theeffectivity of dolomite plus. The result showed that application of dolomite plus 1,600 kg ha-1 with NPK fertilizerincreased dry weight of grain yield untill 27% (11.53 to 14.65 g plant-1) compared to NPK fertilizer application alone,that was showed by RAE > 100% or among 171-251%. Application of dolomite plus with NPK increased soil pH, soilavailable P (Bray 1), Ca and Mg exchangeable, and CEC as 1.9 unit; 6.2 mg kg-1; 15.87 cmol(+) kg-1; 14.27 cmol(+)kg-1; and 17.29 cmol(+) kg-1 respectively. Maximum rate of dolomite plus was 2,500 kg ha-1 with the yield was 14.2 gplant-1 grain dry weight. The rate of dolomite plus that was higher than 2,500 kg ha-1 could decrease the yield[How to Cite: Sutriadi MT and D Setyorini. 2012. Response of Peanut due to Application of Dolomite Plus. J Trop Soils 17: 143-150. Doi: 10.5400/jts.2012.17.2.143]Â [Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.2.143]

Calibration of Soil Phosphorus Test for Upland Rice Grown on Typic Kandiudox, Way Pangubuan, Lampung Sutriadi, Mas Teddy; Setyorini, Diah; Nursyamsi, Dedi
JOURNAL OF TROPICAL SOILS Vol. 23 No. 2: May 2018
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2018.v23i2.81-89

Calibration of soil P test was conducted for Typic Kandiudox derived from Way Pangubuan, Lampung. A field experiment was carried out in dry and wet seasons. The dry season experiment in 2013 was designed by applying various soil P status: 0 X (very low), Â¼ X (low), Â½ X (medium), Â¾ X (high), dan X (very high), in which X was the amount of P required to obtain P concentration of 0.2 mg P L-1 in soil solution. The wet season experiment was conducted in 2013/2014 with the P treatments of P fertilizer at 0, 8, 16, 33, dan 66 kg P ha-1 in the form of SP-36 with 3 replicates. The results showed that Colwell, Morgan-Wolf, and Olsen extraction methods were not suitable to determine P requirement for upland rice grown on Typic Kandiudox. Extraction methods of Bray-1, Truog, Mehlich, HCl 25%, dan Bray-2 were appropriate to estimate P fertilizer requirement for upland rice. Among all of these extractions, Bray-1 and Truog were the most appropriate. The level of soil P availability extracted using Bray-1 were classified into low (< 12.0 ppm P2O5), medium (12.0-26.0 ppm P2O5), and high status (> 26.0 ppm P2O5), whereas soil P availability status extracted using Truog consisted of low (< 9.0 ppm P2O5), medium (9.0-15.5 ppm P2O5), and high (> 15.5 ppm P2O5).Â Phosphorus fertilizer recommendation for upland rice grown on Typic Kandiudox with low, medium, and high soil P availability status were 33, 8, and 0-4 kg P ha-1, respectively, which equal to 200, 50, and 0-25 kg SP-36 ha-1, respectively.

The Effects of Micronutirents on Growth and Yield of Lowland Rice Grown on Typic Dystrudept Soil Husnain, Husnain; Setyorini, Diah; Asmarhansyah, Asmarhansyah; Andriati, Andriati
JOURNAL OF TROPICAL SOILS Vol. 24 No. 1: January 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i1.1-10

Fertilizers and fertilization technology have important roles in increasing crop production including lowland rice. In response to the issue, a field experiment was conducted to study the effects of micronutrients on growth and yield of lowland rice. The experiment was carried out at Cihideung Ilir Village, Dermaga Sub-district, Bogor Regency from November 2015 until March 2016. The experiment consisted of 8 treatments, namely control (without fertilization), NPK-standard, NPK-standardÂ + Â¼ dosage of Hortigro Rice fertilizer, and Â¾ NPKÂ + Â¼Â until 11/4 dosages of Hortigro Rice fertilizer as a source of macronutrients N, P, K and micronutrients of Mn, Cu, Zn, B, and Mo. The treatments were arranged in a Randomized Block Design with 3 replications. Parameters observed during the research were plant height, tiller number, and yield of grain and straw of INPARI-32 lowland rice as crop indicator. TheÂ resultsÂ showed that among other treatments, the highest plant height was resulted from the application of Â¾ NPK-standard + Â¼ Hortigro Rice, i.e. around 124 cm at 60 days after planting. The highest harvesting dry weight of grain and straw were observed in NPK-standard + 1/4 of Hortigro Rice fertilizer treatment, i.e. around 9.0 Mg ha-1 and 25.9 Mg ha-1, respectively. This yield showed a significant difference with Â¾ NPK-standard combined with Â¾Â -11/4 dosages of Hortigro Rice. The highestÂ dry weight ofÂ milled grains wasÂ resulted in the application ofÂ Â¾ NPK-standard + 1/2 Hortigro Rice, i.e. around 7.3 Mg ha-1, which is significantly different from that in Â¾ NPK-standard combined with 1.0 - 11/4 dosages of Hortigro Rice treatments, while the highest dry weight of straw was provided by NPK-standard, i.e. around 14.0 Mg ha-1. The highestÂ dry weight of 1000 milled grains and ratio ofÂ dry weight of milled grain to straw were provided by Â¾ NPK-standard + 1/2 Hortigro Rice around 32.0 gram andÂ 0.63, respectively. The results indicated that the application of micronutrient fertilizer of Hortigro Rice in combination with NPK fertilizers can potentially increase lowland rice productivity due to the micronutrients content of Mn, Cu, Zn, B, and Mo in it.

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