USN Scientific Journal Publisher (Universitas Sembilanbelas November Kolaka - USN-SJ)
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Assessment of Soil Damage for Biomass Production in Slope Area Used as Agricultural Land in Tanggetada District, Kolaka Regency
Get PDFThis study aimed to assess the soil degradation level for biomass production in sloping areas used as agricultural land. This research was conducted in Tanggetada District, Kolaka Regency. This research was conducted using a field survey method with a slope class approach which is used as agricultural land with a slope of 8-15%, 15-25%, 25-45%, and 45%. The results of the study show that the status of soil damage in sloped areas used as agricultural land in Tanggetada District, Kolaka Regency, for slope classes 8-15%, 15-25%, and 25-45% included in the lightly damaged category while slope classes 45% included in the moderately damaged category. The limiting factors for soil damage status at this location are surface rock, microbial count, bulk density, permeability, and redo
EFFORTS TO IMPROVE SYLLABLE READING ABILITY THROUGH LETTER CARD MEDIA IN CLASS B, PELANGI KIDS SCHOOL, TANJUNG KERANGT SCHOOL, ACADEMIC YEAR 2022-2023
No full textKindergarten education has a very important role in developing children's personalities and preparing them to enter the next level of education. Reading is a language skill and is an integrated learning consisting of; recognize letters, words, sounds, meanings and get the essence of what is read. Media is considered important, because children need concreteness. Where one of the principles of learning in PAUD is concreteness. Letter cards are a tool that can be used to convey material by looking at pictures, symbols or letter shapes
Study of Cocoa Farmers' Motivation (Thebroma Cacao) as an Effort to Improve the Welfare of Farming Communities in Rakadua Village, Bombana Regency
Get PDFFarmers try to have other jobs to meet household needs. The total income of farmer households measures the welfare of the farming community, both income obtained from cocoa farming activities and activities other than cocoa farming. Farmers will spend this total income to meet their various life needs. This study aimed to determine the motivation of cocoa commodity farmers to improve welfare in Rakadua Village, Poleang Barat District, and Bombana Regency. The type of research used is quantitative research. The results of the study showed that the average farmer's motivation assessment was high because each farmer has motivation such as the responsibility of each farmer so that they know what they have to do so that their desired goals can be achieved, namely to be able to develop farming well to get more profit and 75 samples of cocoa farmers in Rakadua Village are included in the prosperous category because the income they receive can meet their family needs such as food, clothing, and children's education. The results of the data analysis show an average value of farmer motivation of 76.9% and an average value of farmer welfare of 78.7%, with each categorized as high, which means that the higher the farmer motivation, the higher the level of welfare of farmers in Rakadua Village. Work motivation itself is supported by indicators that drive motivation to increase welfare
Growth Response of Phalaenopsis Seedling on Various Concentrations of Hyponex Leaf Fertilizer
No full textThe aim of the study was to determine and analyze the effect of Phalaenopsis seedling growth at various concentrations of Hyponex foliar fertilizer. This study was conducted in Cempalagi Village, Tempe Sub-district, Wajo Regency. By using a randomized block design consisting of five concentrations of hyponex fertilizer, namely: 1.0 g/liter of water, 2.0 g/liter of water, 2.5 g/liter of water, 3.0 g/liter of water and 3.5 g/liter of water. Results of study showed that the concentration of hyponex fertilizer at 2.5g/liter of water obtained the best results on leaf number, leaf length, leaf thickness, root number and root length of Phalaenopsis orchid
Application of Various Organic Materials and Urea on Soybean Growth and Production in Nickel Contaminated Soil
Get PDFThe research was conducted at the Experimental Garden of Hasanuddin University (UNHAS) located in Baraya, Makassar, South Sulawesi from March to June 2022. This research was in the form of experiments conducted in soybean plant pots. The media used was soil obtained from post-nickel mining in Sorowako, East Luwu Regency, South Sulawesi. Research in the field is arranged according to a Randomized Block Design (RAK) with 3 replications. The treatment design used a 2-factor factorial design. The first factor is the type of Organic Material or Compost (K) consisting of 4 levels, namely; K0 (without organic matter), K1 (Kirinyuh compost), K2 (gamal compost) and K3 (rice husk compost) and the second factor is Urea (U) fertilization treatment consisting of 4 levels, namely; U0 (without Urea fertilizer), U1 (100 kg ha–1 Urea), U2 (200 kg ha–1 Urea), U3 (300 kg ha–1 Urea). The number of pots used was 4 units per treatment so there were 192 units of observation. The two factors tested resulted in 16 treatment combinations. The results showed that gamal compost (Gliricidia sepium) gave the best effect in increasing plant height, number of soybean leaves and weight of 100 soybean seeds. The results showed that urea dose of 100 kg ha–1 gave the best effect in increasing plant height and number of soybean leaves. The results showed that there was no interaction between the administration of the type of organic matter and the dose of ure
Evaluation of Seedling Tray Selection for the Screening of Saline-Tolerant Rice
Get PDFThis study aimed to identify the effectiveness of seedling trays in screening rice for salinity tolerance. The study was conducted at the greenhouse, Faculty of Agriculture, Hasanuddin University, from August 2022 to October 2022. The genotypes used consisted of 4 dihaploid lines (F37, F42, F46, and F47), which were tolerant to salinities in nutrient culture screening. The Duncan Multiple Range Test (DMRT) with STAR 2.0.1 software and regression analysis with Microsoft Excel were used to analyze the interaction between genotype and environment. The results showed that the characters of shoot length (SL) and shoot fresh weight (SFW) were significantly influenced by all sources of diversity. In addition, the F37 and F42 genotype had a stable tolerance to saliency stress. The SFW character of F42 was more affected by SL than SL in the screening with soil media in trays. Based on the two evaluation characters (SL and SFW), fixed crown height is recommended as a selection criterion with SFW for the screening of saline-tolerant rice.Â
ANALYSIS OF SHALLOW GROUNDWATER QUALITY FOR DRINKING WATER NEEDS
No full textThis research is based on water conditions in the Village of 19 November. There are some wells that do not meet the standards of clean water issued by the Ministry of Health of the Republic of Indonesia Number 492/Menkes/Per/IV/2010. The purpose of this study was to determine the quality of shallow groundwater (wells) in 19 November Village. Based on regulations, the parameters measured consist of physical and chemical parameters.Physical parameters consist of odor, color, taste, temperature, and total dissolved solids, while chemical parameters consist of pH, BOD, and COD. The data in this study were collected using observation techniques and laboratory analysis. Furthermore, the data is analyzed using descriptive statistics and the storet method. Based on the results of the analysis, it was found that the quality of shallow groundwater in 19 November Village was in the moderately polluted class and did not meet the standards. This is because the concentration of physical and chemical parameters has exceeded the set threshold
Implementation of Discovery Learning Models to Improve Understanding of Soci-Cultural Change Material at SMP Negeri 02 Rumbia, Indonesia
No full textThis study aimed to improve students’ understanding of socio-cultural change in class IX at SMP Negeri 02 Rumbia through the implementation of the Discovery Learning model. The research was conducted using Classroom Action Research (CAR) over three cycles, each consisting of planning, action, observation, and reflection. The participants were class IX students, and data were collected from both students and teachers through observation and written tests, then analyzed qualitatively using descriptive analysis. The findings showed that students’ understanding gradually improved across the cycles. In Cycle I, the average learning outcome was 72.22 with 61% of students achieving mastery. Cycle II showed an increase to an average score of 79.17 with 75% mastery, and in Cycle III, the average score reached 89.72 with 100% of students achieving mastery, categorized as “Very Good.” These results indicate that the Discovery Learning model effectively enhances students’ comprehension of socio-cultural change, fostering active engagement, critical thinking, and collaborative learning
Developing the Students' Ability in Reading Through Speed Reading Technique at the First Year Students of SMKN 1 Watunohu
No full textThis Classroom Action Research (CAR) aimed to improve first-year students’ reading ability through the application of a speed reading technique at SMKN 1 Watunohu during the 2014/2015 academic year. The participants of this study were 26 first-grade students. The research was conducted in two cycles, each consisting of four stages: planning, acting, observing, and reflecting. Data were collected using observation checklists to examine students’ engagement during the learning process and multiple-choice tests to measure students’ reading achievement. The collected data were analyzed descriptively to evaluate improvements in students’ speed reading performance across the cycles. The findings revealed that in Cycle I, students’ reading ability did not meet the minimum achievement criteria, indicating that the implementation of the technique had not yet been effective. However, significant improvement was observed in Cycle II, where students demonstrated better reading speed and comprehension, and the minimum achievement standard was successfully achieved. These results indicate that the speed reading technique can effectively enhance students’ reading ability when systematically implemented through reflective instructional cycles.This Classroom Action Research (CAR) aimed to improve first-year students’ reading ability through the application of a speed reading technique at SMKN 1 Watunohu during the 2014/2015 academic year. The participants of this study were 26 first-grade students. The research was conducted in two cycles, each consisting of four stages: planning, acting, observing, and reflecting. Data were collected using observation checklists to examine students’ engagement during the learning process and multiple-choice tests to measure students’ reading achievement. The collected data were analyzed descriptively to evaluate improvements in students’ speed reading performance across the cycles. The findings revealed that in Cycle I, students’ reading ability did not meet the minimum achievement criteria, indicating that the implementation of the technique had not yet been effective. However, significant improvement was observed in Cycle II, where students demonstrated better reading speed and comprehension, and the minimum achievement standard was successfully achieved. These results indicate that the speed reading technique can effectively enhance students’ reading ability when systematically implemented through reflective instructional cycles
Improving Students' Learning Outcomes in Indonesian Language Subject on Writing Texts of Fantasy Materials Through the Application of Problem Based Learning Learning Models
No full textThis study aimed to investigate the effect of the Problem-Based Learning (PBL) model on students’ writing performance and learning outcomes in Indonesian class VIII. The research employed a Classroom Action Research (CAR) design conducted over two cycles with 32 students as participants. Each cycle consisted of planning, implementation, observation, and reflection. Data were collected using student learning outcome tests and analyzed through descriptive quantitative statistical techniques. The findings revealed a progressive improvement in students’ performance: the average score increased from 77 in the first cycle to 82 in the second cycle. Observations indicated that PBL enhanced students’ engagement, collaboration, and ability to apply knowledge to solve problems. Moreover, students demonstrated improved critical thinking and creativity in writing fantasy stories. The results suggest that the PBL model effectively fosters active learning, promotes higher-order thinking skills, and enhances student learning outcomes in Indonesian language education. Implementing PBL encourages collaborative problem-solving, the integration of knowledge and skills, and the application of learning to authentic tasks. These findings provide practical implications for educators seeking to improve student achievement and engagement through innovative instructional strategies