Risma Neswati, Risma
Jurusan Ilmu Tanah, Fakultas Pertanian, Universitas Hasanuddin, Makassar

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PENINGKATAN UNSUR HARA FOSPOR TANAH ULTISOL MELALUI PEMBERIAN PUPUK KANDANG, KOMPOS DAN PELET Pasang, Yafet Hendri; Jayadi, Muh.; Neswati, Risma
Jurnal Ecosolum Vol 8, No 2 (2019): DESEMBER
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (601.6 KB) | DOI: 10.20956/ecosolum.v8i2.7872

Abstract

Ultisol soil has high potential for the development of dryland agriculture. However, this soil use faces obstacles because the nutrient content in Ultisol soils is generally low. This study aims to determine the effect of manure and straw compost on increasing nutrient content of phosphorus in ultisol soil. This study used a completely randomized design (CRD) with 9 levels of treatment, namely P0 = control, P1 = manure 10 tons / ha, P2 = manure 5 tons / ha, P3 = compost 5 tons / ha, P4 = compost 10 ton / ha, P5 = manure 5 tons / ha + compost 10 tons / ha, P6 = manure 10 tons / ha + compost 5 tons / ha, P7 = pellet compost 5 tons / ha, P8 = compost pellets of 10 tons / ha. The treatment was repeated 3 times. The results showed that giving 10 tons / ha of manure plus 5 tons / ha of compost had a significant effect on reducing Al-dd content, and increasing P-available, pH, base saturation, cation exchange capacity and C-organicon Ultisol soil. Giving pellet fertilizer 10 tons / ha gives a real influence on the growth of maize plants. 
Landuse Changes Refer to Spatial Planning Regulations at Kelara Watershed Area: An Analysis Using Geospatial Information Technology Ramlan, Andi; Neswati, Risma; Baja, Sumbangan; Nathan, Muhammad
Forum Geografi Vol 29, No 1 (2015): Forum Geografi
Publisher : Forum Geografi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this study is to analyze land use changes in the Kelara watershed and to assess the suitability of current land use changes with the spatial planning regulation of Jeneponto within Kelara basin. This study integrates various survey techniques, remote sensing, and geographic information system technology analysis. Geospatial information used in this study consists of Landsat ETM 7+ satellite imagery (2009) and Landsat 8 (2014) as well as a number of spatial data based on vector data which is compiled by the Jeneponto Government. Remote sensing data using two time series (2009 and 2014) are analyzed by means of supervised classification and visual classification.  The analysis indicated that land use type for the paddy fields and forests (including mangroves) converted become a current land use which is inconsistent with the spatial planning regulation of Jeneponto.The use of land for settlement tends to increase through conversion of wetlands (rice fields). These conditions provide an insight that this condition will occur in the future, so that providing the direction of land use change can be better prepared and anticipated earlier.
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.
Landuse Changes Refer to Spatial Planning Regulations at Kelara Watershed Area: An Analysis Using Geospatial Information Technology Ramlan, Andi; Neswati, Risma; Baja, Sumbangan; Nathan, Muhammad
Forum Geografi Vol 29, No 1 (2015): July 2015
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v29i1.795

Abstract

The purpose of this study is to analyze land use changes in the Kelara watershed and to assess the suitability of current land use changes with the spatial planning regulation of Jeneponto within Kelara basin. This study integrates various survey techniques, remote sensing, and geographic information system technology analysis. Geospatial information used in this study consists of Landsat ETM 7+ satellite imagery (2009) and Landsat 8 (2014) as well as a number of spatial data based on vector data which is compiled by the Jeneponto Government. Remote sensing data using two time series (2009 and 2014) are analyzed by means of supervised classification and visual classification.  The analysis indicated that land use type for the paddy fields and forests (including mangroves) converted become a current land use which is inconsistent with the spatial planning regulation of Jeneponto.The use of land for settlement tends to increase through conversion of wetlands (rice fields). These conditions provide an insight that this condition will occur in the future, so that providing the direction of land use change can be better prepared and anticipated earlier.
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.%p

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.
DRYLAND LAND-USE CONFLICTS IN HUMID TROPICS: AN ANALYSIS USING GEOGRAPHIC INFORMATION SYSTEMS AND LAND CAPABILITY EVALUATIONS Neswati, Risma; Baja, Sumbangan; Arif, Samsu; Hasni, Hasni
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 17, No 1 (2020): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1301.717 KB) | DOI: 10.20961/stjssa.v17i1.37824

Abstract

This study analyses land-use conflicts in specific dryland agricultural areas in relatively dry humid tropics based on the Regional Spatial Land Use Planning Regulations and land-capability evaluation. This research was conducted in the Regency of Jeneponto, South Sulawesi, Indonesia. The observation site was chosen based on several maps overlapping to produce 30 land units spread across 14 land systems in Jeneponto. This study integrates ground surveys and geographic information systems technology. The land capability analysis used a simple approach factor, according to United States Department of Agriculture definitions. The results indicate that land capability was dominated by Class IV, which covered 35,133 ha or 63.1%. Class VI covered 12,581 ha or 22.6%, Class III covered up to 4,378 ha or 7.9%, and Class VIII covered 3,130 ha or 5.6%. Class VII covered only 486 hectares, or 0.9%, the smallest area. These results indicate that the dryland area which had become a land-use conflict was delineated by Regional Spatial Land Use Planning Regulations. The drylands found in Jeneponto cover 22,214 ha or 39.9%, which has been divided into two: an area where non-dryland agriculture was converted into dryland farming (16,503 hectares, or 29.6%), and an area where dryland-farming was converted into non-agricultural dryland area (5,711 hectares, or 10.3%). Interviews with 50 farmers in the study location revealed factors that had changed agricultural dryland use into non-agricultural dryland use; lower incomes due to decreased soil fertility was a crucial factor.
PERBAIKAN KUALITAS TANAH PURNA TAMBANG NIKEL DENGAN PENGGUNAAN MIKORIZA DAN BIOCHAR TANDAN KOSONG KELAPA SAWIT Angelita, Titah Kasih; Rasyid, Burhanuddin; Neswati, Risma
Jurnal Ecosolum Vol 9, No 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.7250

Abstract

Nickel mining decreases the quality of soil properties, it is not suitable for agriculture so alternative technology is required such us using biochar made from oil palm empty fruit bunch and mycorrhiza. This study aims to examine the effect of biochar made from oil palm empty fruit bunch and mycorrhiza to improve the nickel post-mining soil quality. This study used two-factor factorial randomized group design. The first factor is biochar made from oil palm empty fruit bunch with 4 levels; B0 (0 g), B1 (300 g), B2 (450 g), and B3 (600 g), the second factor is mycorrhiza with 4 levels; M0 (0 g), M1 (2 g), M2 (4 g), each treatment was repeated 3 treatments so that the total experiment was 36 units. The results showed that the use of bio-ameliorant waste from oil palm empty fruit bunch with dosage of 120 g / kg, improved the chemical properties of nickel post-mining soil regarding the parameter of C-organic, pH, available phosphorus, cation exchange capacity, exchangeable aluminum, Ca-dd and Mg -dd and increasing plant growth significantly. The treatment of mycorrhiza 0.4 g / kg significantly affected the soil properties regarding the parameters of root volume, root length and percentage of root infection and improvement of soil chemical properties in available phosphorus to plants and exchangeable aluminum parameters. The treatment of biochar with dosage of 120g / kg of soil and mycorrhiza 0.4 g / kg of soil is the best interaction of mycorrhiza and biochar made from oil palm empty fruit bunch as amelioration material of post-mining soil which is characterized by the decrease of exchangeable aluminum value. The application of biochar made from oil palm empty fruit bunch and mycorrhiza can improve the nickel post-mining soil quality
PERBAIKAN KUALITAS TANAH PURNA TAMBANG NIKEL DENGAN PENGGUNAAN MIKORIZA DAN BIOCHAR TANDAN KOSONG KELAPA SAWIT Angelita, Titah Kasih; Rasyid, Burhanuddin; Neswati, Risma
Jurnal Ecosolum Vol 9, No 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.7250

Abstract

Nickel mining decreases the quality of soil properties, it is not suitable for agriculture so alternative technology is required such us using biochar made from oil palm empty fruit bunch and mycorrhiza. This study aims to examine the effect of biochar made from oil palm empty fruit bunch and mycorrhiza to improve the nickel post-mining soil quality. This study used two-factor factorial randomized group design. The first factor is biochar made from oil palm empty fruit bunch with 4 levels; B0 (0 g), B1 (300 g), B2 (450 g), and B3 (600 g), the second factor is mycorrhiza with 4 levels; M0 (0 g), M1 (2 g), M2 (4 g), each treatment was repeated 3 treatments so that the total experiment was 36 units. The results showed that the use of bio-ameliorant waste from oil palm empty fruit bunch with dosage of 120 g / kg, improved the chemical properties of nickel post-mining soil regarding the parameter of C-organic, pH, available phosphorus, cation exchange capacity, exchangeable aluminum, Ca-dd and Mg -dd and increasing plant growth significantly. The treatment of mycorrhiza 0.4 g / kg significantly affected the soil properties regarding the parameters of root volume, root length and percentage of root infection and improvement of soil chemical properties in available phosphorus to plants and exchangeable aluminum parameters. The treatment of biochar with dosage of 120g / kg of soil and mycorrhiza 0.4 g / kg of soil is the best interaction of mycorrhiza and biochar made from oil palm empty fruit bunch as amelioration material of post-mining soil which is characterized by the decrease of exchangeable aluminum value. The application of biochar made from oil palm empty fruit bunch and mycorrhiza can improve the nickel post-mining soil quality
KARAKTERISASI LAHAN SAWAH BUKAAN BARU HASIL KONVERSI LAHAN HUTAN DI DESA KALOSI KECAMATAN TOWUTI KABUPATEN LUWU TIMUR Felix, Irfandi; Neswati, Risma; Lias, Syamsul Arifin
Jurnal Ecosolum Vol 9, No 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.9115

Abstract

The conversion of the function of productive agricultural land to non-agricultural land has taken place and is difficult to avoid as a result of the rapid rate of growth and development in an area so that agricultural production must be increased, especially food production to meet food needs with efforts to expand planting areas and the printing of new fields, but generally constrained by low-quality land. This study aims to determine the characteristics of the new openings paddy fields converted from forest land in the Village of Kalosi District Towuti for the development of irrigated paddy fields. This research method is descriptive, data collection is done by observations in the field and laboratory tests. The determination and sampling of soil in this study is purposive sampling. The results showed that the research location was suitable to be used as an irrigated field which had rainfall of ± 2329 - 3631 mm/year, an average temperature of 27oC, a minimum temperature of 23oC, a maximum temperature of 32oC, slope 0-8%, clay texture, dusty clay, sandy clay loam, H2O soil reaction 5.6 - 5.9, CEC 35 - 60 cmol/kg clay, C-organic > 2%, salinity 0.15 - 1.20 dS m-1, base saturation > 40%, base cation can be exchanged 11 ? 19 cmol kg-1, the dominant type of mineral found kaolinite clay mineral and irrigation water quality has a pretty good standard of water quality.
KARAKTERISASI LAHAN SAWAH BUKAAN BARU HASIL KONVERSI LAHAN HUTAN DI DESA KALOSI KECAMATAN TOWUTI KABUPATEN LUWU TIMUR Felix, Irfandi; Neswati, Risma; Lias, Syamsul Arifin
Jurnal Ecosolum Vol 9, No 1 (2020): JUNI
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ecosolum.v9i1.9115

Abstract

The conversion of the function of productive agricultural land to non-agricultural land has taken place and is difficult to avoid as a result of the rapid rate of growth and development in an area so that agricultural production must be increased, especially food production to meet food needs with efforts to expand planting areas and the printing of new fields, but generally constrained by low-quality land. This study aims to determine the characteristics of the new openings paddy fields converted from forest land in the Village of Kalosi District Towuti for the development of irrigated paddy fields. This research method is descriptive, data collection is done by observations in the field and laboratory tests. The determination and sampling of soil in this study is purposive sampling. The results showed that the research location was suitable to be used as an irrigated field which had rainfall of ± 2329 - 3631 mm/year, an average temperature of 27oC, a minimum temperature of 23oC, a maximum temperature of 32oC, slope 0-8%, clay texture, dusty clay, sandy clay loam, H2O soil reaction 5.6 - 5.9, CEC 35 - 60 cmol/kg clay, C-organic > 2%, salinity 0.15 - 1.20 dS m-1, base saturation > 40%, base cation can be exchanged 11 ? 19 cmol kg-1, the dominant type of mineral found kaolinite clay mineral and irrigation water quality has a pretty good standard of water quality.