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Lopulisa, Christianto
Department Of Soil Science, Faculty Of Agriculture, Hasanuddin University, Makassar, South Sulawesi, Indonesia
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Other

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Journal : Journal of Tropical Soils

 1 
Land Suitability Index for Estimating Sugar Cane Productivity in the Humid Tropics of South Sulawesi Indonesia Risma Neswati; Christianto Lopulisa; Muhammad Nathan; Andi Ramlan
JOURNAL OF TROPICAL SOILS Vol 21, No 2: May 2016
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2016.v21i2.115-122

Abstract

This research was completed using mixed qualitative and quantitative methods. Field surveys were executed in sugar cane plantation throughout South Sulawesi Indonesia. Land suitability analyses were performed using a parametric approach with Storie’s index equation followed up with  correlation analysis using the Pearson correlation. Results revealed that the period for sugarcane crop growth in the humid tropic relatively dry regions of South Sulawesi Indonesia lasted for the months of November to July.  The land suitability for sugar cane in the research location was moderately suitable (S2c) and marginally suitable (S3c, S3s, S3s,f and S3c,w) with limiting factors such as relative humidity during crop maturation phase, the duration of sunlight, soil depth, soil texture, soil pH and soil drainage. Land suitability index at the research location ranged from 25.2 to 55.0; sugar cane yields ranged from 30.3 to 62.0 Mg ha-1 year-1. Pearson correlation coefficient (r) between LSI with cane and sugar productivity were 0.81 and 0.84 respectively, signifying the strength of the correlation between the two values. This also indicates that land suitability index can be estimating the potential crop yield in the humid tropicsthat relatively dry climate regions.
Soil Development from Volcanic Ash Based on Different Pyroclastic Composition Asmita Ahmad; Muchtar Salam Solle; Christianto Lopulisa
JOURNAL OF TROPICAL SOILS Vol 24, No 3: September 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i3.135-140

Abstract

Potential volcano in several provinces in Indonesia played a significant role in the formation and quality of soil development. Soils that developed from the volcanic ashes often thought to contribute greatly to improve soil fertility, without regard to the nature and composition of the volcanic ash produced. Volcanic ash generated from the results in volcanic activity has a different composition, there are basaltic, andesitic and granitic, thereby affecting the process of formation and characteristics of the soil. The Objective of this study is to determine the soil development from different types of pyroclastic generated from Lokon volcano in North Sulawesi. The coordinates of research was in 1o 21' 18.0" N and 124o 49' 20.2"E. this research used ARL Quant X (EDXRF Analyzer) for X-Ray Fluorescence (XRF), Shimadzu XRD-7000 for  X-Ray Diffractometer (XRD), geology map (scale 1:250,000), topographic map (scale 1:50,000), XRD software, GIS 10.3 software. Soil analysis for texture, pH, C-Organic, and cation exchange capacity (CEC). There are two types of pyroclastic as the source of soil development from volcanic ash, there are; 1) basaltic pyroclastic with 43.26% Si02 that are resulted from the first magmatic eruption and 2) andesitic pyroclastic with 5.09% Si02 that are resulted from the late magmatic eruption. Basaltic pyroclastic contains Fe 37.63%, Al 11.35%, Ca 13.17% and Mg 5.69%, while andesitic pyroclastic contains Fe 38.35%, Al 6.87%, and Ca 8.61%. Rainfall ranges from 2000-3500 mm/yr helped the soil formation and influenced the character of the soil, such as sandy loam of soil texture, 3.08% of soil C-organic content, 23.24 cmol+/kg of CEC and 148.93 cmol+/kg of clay CEC. Clay minerals content of the soil is vermiculite, kaolinite and, halloysite. Cation supply from basaltic pyroclastic influenced the formation of vermiculite mineral, whereas andesitic pyroclastic more influences the formation of the kaolinite mineral. Formation of soil texture with a predominance of the sand fraction is more influenced by the type of andesitic pyroclastic that more resistant to weathering processes.Keywords: Soil; volcanic ash; pyroclastic; vermiculite; kaolinite
Characterization and Classification of Soils from Different Topographic Positions under Sugarcane Plantation in South Sulawesi, Indonesia Risma Neswati; Christianto Lopulisa; Ahmad Faudzan Adzima
JOURNAL OF TROPICAL SOILS Vol 24, No 2: May 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i2.93-100

Abstract

The varied topography will influence the soil formation. This study aims to characterize and classify the soil selected on different topography positions of the sugarcane plantation area. The research was conducted in sugarcane plantation area of Camming, District of Bone, South Sulawesi, which was carried out from November 2017 to March 2018. This study used a descriptive method, observation and description of the nine soil profiles at three transects. Each transect consisted of three profiles points located in different positions, consisting of summit, backslope, and valleys. Each horizon soil samples were analyzed for their physical, chemical and micromorphology characteristics in the laboratory. Soil classification system was done by using soil taxonomy to the level of subgroups. The results showed that an average rainfall annual on the research location was 2.200 mm per year. Soil characteristics such as soil solum, cation exchange capacity, and sum of basic cations tended to increase in parts of the valley than in the back and summit. The primary mineral from the sand fraction included quartz, calcite, biotite, opaque, and orthoclase found especially in the position of the back and valley. The pore types consisted of vugh and packing void pores. Pedofeature type of soil was generally in the form of concretions and nodules that showed the process of oxidation and reduction. The soil type in the study area was classified into Typic Haplustepts and Typic Haplustalf.
Land Suitability Index for Estimating Sugar Cane Productivity in the Humid Tropics of South Sulawesi Indonesia Neswati, Risma; Lopulisa, Christianto; Nathan, Muhammad; Ramlan, Andi
JOURNAL OF TROPICAL SOILS Vol. 21 No. 2: May 2016
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2016.v21i2.115-122

Abstract

This research was completed using mixed qualitative and quantitative methods. Field surveys were executed in sugar cane plantation throughout South Sulawesi Indonesia. Land suitability analyses were performed using a parametric approach with Storie’s index equation followed up with correlation analysis using the Pearson correlation. Results revealed that the period for sugarcane crop growth in the humid tropic relatively dry regions of South Sulawesi Indonesia lasted for the months of November to July. The land suitability for sugar cane in the research location was moderately suitable (S2c) and marginally suitable (S3c, S3s, S3s,f and S3c,w) with limiting factors such as relative humidity during crop maturation phase, the duration of sunlight, soil depth, soil texture, soil pH and soil drainage. Land suitability index at the research location ranged from 25.2 to 55.0; sugar cane yields ranged from 30.3 to 62.0 Mg ha-1 year-1. Pearson correlation coefficient (r) between LSI with cane and sugar productivity were 0.81 and 0.84 respectively, signifying the strength of the correlation between the two values. This also indicates that land suitability index can be estimating the potential crop yield in the humid tropicsthat relatively dry climate regions.
Soil Development from Volcanic Ash Based on Different Pyroclastic Composition Ahmad, Asmita; Solle, Muchtar Salam; Lopulisa, Christianto
JOURNAL OF TROPICAL SOILS Vol. 24 No. 3: September 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i3.135-140

Abstract

Potential volcano in several provinces in Indonesia played a significant role in the formation and quality of soil development. Soils that developed from the volcanic ashes often thought to contribute greatly to improve soil fertility, without regard to the nature and composition of the volcanic ash produced. Volcanic ash generated from the results in volcanic activity has a different composition, there are basaltic, andesitic and granitic, thereby affecting the process of formation and characteristics of the soil. The Objective of this study is to determine the soil development from different types of pyroclastic generated from Lokon volcano in North Sulawesi. The coordinates of research was in 1o 21' 18.0" N and 124o 49' 20.2"E. this research used ARL Quant X (EDXRF Analyzer) for X-Ray Fluorescence (XRF), Shimadzu XRD-7000 for  X-Ray Diffractometer (XRD), geology map (scale 1:250,000), topographic map (scale 1:50,000), XRD software, GIS 10.3 software. Soil analysis for texture, pH, C-Organic, and cation exchange capacity (CEC). There are two types of pyroclastic as the source of soil development from volcanic ash, there are; 1) basaltic pyroclastic with 43.26% Si02 that are resulted from the first magmatic eruption and 2) andesitic pyroclastic with 5.09% Si02 that are resulted from the late magmatic eruption. Basaltic pyroclastic contains Fe 37.63%, Al 11.35%, Ca 13.17% and Mg 5.69%, while andesitic pyroclastic contains Fe 38.35%, Al 6.87%, and Ca 8.61%. Rainfall ranges from 2000-3500 mm/yr helped the soil formation and influenced the character of the soil, such as sandy loam of soil texture, 3.08% of soil C-organic content, 23.24 cmol+/kg of CEC and 148.93 cmol+/kg of clay CEC. Clay minerals content of the soil is vermiculite, kaolinite and, halloysite. Cation supply from basaltic pyroclastic influenced the formation of vermiculite mineral, whereas andesitic pyroclastic more influences the formation of the kaolinite mineral. Formation of soil texture with a predominance of the sand fraction is more influenced by the type of andesitic pyroclastic that more resistant to weathering processes.Keywords: Soil; volcanic ash; pyroclastic; vermiculite; kaolinite
Characterization and Classification of Soils from Different Topographic Positions under Sugarcane Plantation in South Sulawesi, Indonesia Neswati, Risma; Lopulisa, Christianto; Adzima, Ahmad Faudzan
JOURNAL OF TROPICAL SOILS Vol. 24 No. 2: May 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i2.93-100

Abstract

The varied topography will influence the soil formation. This study aims to characterize and classify the soil selected on different topography positions of the sugarcane plantation area. The research was conducted in sugarcane plantation area of Camming, District of Bone, South Sulawesi, which was carried out from November 2017 to March 2018. This study used a descriptive method, observation and description of the nine soil profiles at three transects. Each transect consisted of three profiles points located in different positions, consisting of summit, backslope, and valleys. Each horizon soil samples were analyzed for their physical, chemical and micromorphology characteristics in the laboratory. Soil classification system was done by using soil taxonomy to the level of subgroups. The results showed that an average rainfall annual on the research location was 2.200 mm per year. Soil characteristics such as soil solum, cation exchange capacity, and sum of basic cations tended to increase in parts of the valley than in the back and summit. The primary mineral from the sand fraction included quartz, calcite, biotite, opaque, and orthoclase found especially in the position of the back and valley. The pore types consisted of vugh and packing void pores. Pedofeature type of soil was generally in the form of concretions and nodules that showed the process of oxidation and reduction. The soil type in the study area was classified into Typic Haplustepts and Typic Haplustalf.
Co-Authors A.M Imran, Adzima, Ahmad Faudzan Ahmad Faudzan Adzima Alamudi, Zakina Fauzi Andi Ramlan Andi Ramlan, Andi Asmita Ahmad Asmita Ahmad Asmita Ahmad Burhanuddin Rasyid Hazairin Zubair Indriyani Bali masria, masria ria Muchtar Salam Solle Muhammad Nathan Rachmad Wunangkolu Risma Neswati, Risma Solle, Muchtar Salam Sumbangan Baja Zakina Fauzi Alamudi