Journal Of Berastagi Agriculture (JOBA)

Comparison of Planting Media Types on Vegetative Growth of Mini Potato Cuttings (Solanum Tuberosum L.) Granola L Variety

Harun Pratama Sitepu, Wajib Pandia, Sumatera Tarigan — Mon, 30 Jun 2025 00:00:00 -0700

Potato (Solanum tuberosum L.) is a horticultural plant that is one of the commodities that plays an important role and priority to be developed and has the ability in food diversification. This study aims to determine the effect of planting media on the vegetative growth of potato mini cuttings and to determine what media composition provides the best results for the vegetative growth of potato mini cuttings. The study was conducted in Kebayaken Village, Naman District, Teran, Karo Regency at an altitude of ± 1,200 meters above sea level. The study was conducted for 3 months, starting from November to January. The study was designed with a Completely Randomized Design (CRD) Non-Factorial with 8 factors with 2 replications. The factors studied were (A0) Soil, (A1) Compost, (A2) Rice Husk Charcoal, (A3) Cocopeat, (A4) Chicken Manure, (A5) Compost + Chicken Manure (1:1), (A6) Rice Husk Charcoal + Chicken Manure (1:1), (A7) Cocopeat + Chicken Manure (1:1). The results of the study showed the effect on the vegetative growth of mini potato cuttings, namely the percentage of death, crown diameter, stem diameter, plant height, number of leaves, and shoot length. The planting medium that gave the best results was found in A7 (Cocopeat + Chicken Manure (1:1).

The Effect of Compost and Mutiara Grower Fertilizer on the Growth and Yield of Shallots (Allium ascalonicum L.) Batu Ijo Variety

Elsa Sepanya Br Ginting, Sumatera Tarigan, Agus Susanto Ginting — Mon, 30 Jun 2025 00:00:00 -0700

Shallots are one of the horticultural commodities used by Indonesian people as a seasoning and traditional medicine. Almost every type of Indonesian cuisine uses shallots as the main seasoning that must be included. This study aims to determine the combination dose of compost and mutiara grower fertilizers on the growth and yield of shallots (Allium ascalonicum L.) of the batu ijo variety. This research was conducted in Nangbelawan Village, Simpang Empat District, Karo Regency from September 2024 to February 2025. This study used a single-factor Randomized Block Design (RBD) method, was applied: a combination of compost fertilizer (K) and mutiara grower (N): K0N0, K0N1, K0N2, K0N3, K1N0, K1N1, K1N2, K1N3, K2N0, K2N1, K2N2, K3N2 K3N3, which is K0: control, K1: 25 tons ha-1, K2: 50 tons ha-1 K3: 75 tons ha-1, N0: control, N1: 250kg ha-1, N2: 500kg ha-1, N3: 750kg ha-1. The results showed that the combination of compost and mutiara grower fertilizers did not significantly affect plant height, number of leaves, number of bulb or bulb diameter but had a very significant effect on wet tuber weight per plot. The best dose of compost and mutiara grower fertilizer combination was found at 50 tons ha-1 compost and 500kg ha-1 mutiara grower.

Identification of Soil Chemical Properties in Citrus Plants (Citrus Sp.) in Garingging Village, Merek District, Karo Regency

Alek Wanson Munthe, Chaula Lutfia Saragih, Roida Ervina Sinaga — Mon, 30 Jun 2025 00:00:00 -0700

The aim of this research is to identify the soil chemical properties of orange plants in Garingging Village, Brand District, Karo Regency. This research was carried out from October 2024 to March 2025 on research land and in the laboratory. This research was carried out in 3 stages: (1) preparation stage and preliminary survey (2) main survey and sampling (3) laboratory analysis. Preparation stage and preliminary survey, at this stage secondary data is collected regarding the location where the research will be carried out. A preliminary survey was carried out to determine the condition of the research location in the field and determine sampling points. Main survey and sampling, soil sampling was carried out on orange land that was still productive. Laboratory analysis of soil parameters carried out included soil pH, C-organic, base saturation, cation exchange capacity, N-total, P-available, K-available in productive orange fields. The research results showed that Cation Exchange Capacity was low, Base Saturation was low, organic C was low, total N was low, available P was very low, available K was very low, and soil acidity (soil pH) was slightly acidic.

Evaluation of Land Suitability for Arabica Coffee Plants (Coffea Arabica) in Garingging Village, Merek District, Karo Regency

Karel Sinar Malolikosa Silaban, Roida Ervina Sinaga, Chaula Lutfia Saragih — Mon, 30 Jun 2025 00:00:00 -0700

This study aims to evaluate the suitability of land for Arabica coffee plants (Coffea arabica) in Garingging Village, Merek District, Karo Regency. The methods used are land survey, soil sampling by purposive sampling with a diagonal system, and laboratory analysis of soil physical and chemical parameters. The results of the study showed that the average temperature, soil texture, pH, cation exchange capacity (CEC), soil depth, and C-organic content are in class S1 (very suitable). However, rainfall and base saturation are in class S3 (marginally suitable), while slope is in class S2 (quite suitable). Overall, the actual land suitability is in class S3 and can be increased to class S2 through improvements to the drainage system and soil liming. These results indicate that the land has good potential for the development of Arabica coffee if proper land management is carried out. This study is expected to be a reference for farmers and stakeholders in planning sustainable coffee cultivation in the area.

FACTORS THAT AFFECT THE PRODUCTIVITY OF RED CHILI CURLY (Capsicum Annum L) BUKIT VILLAGE, DOLAT RAYAT DISTRICT, KARO REGENCY

Nurita Br Sembiring, Fauzul Azhimah, Sarah Gracia — Mon, 30 Jun 2025 00:00:00 -0700

This study aims to determine the factors that affect the productivity of curly red chili in Bukit Village, Dolat Rayat District, Karo Regency. The sample of this study used the slovin method with a total of 40 respondents of peacock curly chili farmers in Bukit Village, Dolat Rayat District, Karo Regency. The data collection technique is quantitative where quantitative data includes data for variables such as chili production, agricultural land area, seed use, amount of fertilizer and planting distance on curly red chili farming land in Bukit Village, Dolat Rayat District, Karo Regency. Data analysis methods consist of multiple linear analysis, normality test, heteroscedasticity test, multicollinearity test, t-test, f-test and determination coefficient analysis test (R2). The results of the study indicate that 1) Seed, fertilizer, pesticide, labor and planting distance factors partially have a significant influence on the productivity of curly red chili in Bukit Village, Dolat Rayat District, Karo Regency where the calculated t value of seeds is 2.007> 1.685, the calculated t value of fertilizer is 10.612> 1.685, the calculated t value of pesticide is 10.686> 1.685, the calculated t value of labor is 2.963> 1.685 and the calculated t value of planting distance is 2.007> 1.685, 2) Seed, fertilizer, pesticide, labor and planting distance factors together have a significant positive influence on the productivity of curly red chili in Bukit Village, Dolat Rayat District, Karo Regency where the test results of the Fcount test are 347.740> Ftable 2.38 and the level of significance is 0.000 <0.05 and the results of the determination coefficient test indicate that the contribution of the independent variables, namely seeds, fertilizers, pesticides, labor and planting distance affect the dependent variable, namely red chili productivity by 97.7%. The remaining 2.3% is influenced by other variables not included in this study

COMPARISON OF GROWTH AND YIELD OF WATER SPINACH (Ipomoea reptans Poir) HYDROPONIC SYSTEM TOWARDS AB MIX NUTRITION AND LIQUID ORGANIC FERTILIZER (POC) NUTRITION

Inka Ilfana Br Tarigan, Liskawati Sihaloho, Wajib Pandia — Mon, 30 Jun 2025 00:00:00 -0700

This study aims to compare the effects of two types of nutrients AB Mix and Liquid Organic Fertilizer (POC) on the growth and yield of water spinach (Ipomoea reptans Poir.) using the wick hydroponic system. The observed parameters included plant height, leaf length, number of leaves, root length, and fresh weight.Statistical analysis using Independent Samples T-Test and Mann-Whitney Test showed significant differences in all parameters between the AB Mix and POC treatments. Therefore, AB Mix is more effective in promoting the growth and yield of water spinach in hydroponic systems compared to Liquid Organic Fertilizer (POC).The results of the study were tested using the Independent Samples T-Test and if the data was not normally distributed, the Mann-whitney test was continued to obtain results from each parameter tested that AB Mix nutrients provided better growth and results compared to Liquid Organic Fertilizer (POC).

COMPARISON OF POTATO (Solanum tuberosum L.) VEGETATIVE GROWTH WITH TOMATO EXTRACT AND COCONUT WATER IN MORASHIGE AND SKOOG MEDIA

Hana Friska, Agus Susanto Ginting, Chaula Lutfia Saragih — Mon, 30 Jun 2025 00:00:00 -0700

The purpose of this study was to determine the Comparison of Potato Vegetative Growth (Solanum tuberosum L.) With the Administration of Tomato Extract and Coconut Water With a Tissue Culture System on Morashige and Skoog Media. This research was carried out from September 2024 to February 2025 at the Laboratory of the Kutagadung Berastagi Horticulture Main Agency. This research was carried out from 1) Preparation of Materials and Tools, 2) Morashige and skoog solution, 3) Making each treatment media 4) Making each planting media. 5) Planting Potato Explants into Planting Medium 6) Explants inoculated with culture media, 7) Periodic observations during the incubation period. The results showed that the concentration of tomato extract 10 ml of tissue culture system on Morashige and Skoog media, can affect the height, number of leaves, number of roots, on the vegetative growth of potatoes (Solanum tuberosum L.). Coconut water concentration of 15 ml tissue culture system on Morashige and Skoog media, can affect the height, number of leaves, number of roots, on the vegetative growth of potatoes (Solanum tuberosum L.). The concentration of a mixture of tomato extract and coconut water of 18 ml tissue culture system on Morashige and Skoog media, can affect the height, number of leaves, number of roots, on the vegetative growth of potatoes (Solanum tuberosum L.).

EFFECTIVENESS OF MUNG BEAN (Vigna radiata L.) AS A COVER CROP IN IMPROVING SOIL CHEMICAL PROPERTIES ON DEGRADED AGRICULTURAL LAND

Nabila Syahmita, Chaula Lutfia Saragih, Roida Ervina Sinaga — Mon, 30 Jun 2025 00:00:00 -0700

Degraded agricultural land is a serious issue, particularly due to the loss of topsoil, which significantly reduces soil fertility. This study aims to analyze the effectiveness of mung bean (Vigna radiata L.) as a cover crop in improving the chemical properties of soil on degraded farmland in Rumah Kabanjahe Village, Kabanjahe District, Karo Regency. The research was conducted from November 2024 to March 2025 using a descriptive method by collecting soil samples before and after mung bean planting, which were then analyzed in a laboratory. Observed parameters included organic carbon (C- organic), total nitrogen (N), available phosphorus (P), exchangeable potassium (K), soil pH, and cation exchange capacity (CEC). The results showed increases in C-organic from 0.15% to 1.36%, total N from 0.10% to 0.18%, K from 0.49 me/100g to 2.38 me/100g, and CEC from 10.89 to 26.04 me/100g. However, available P decreased from 10.08 ppm to 2.98 ppm, and pH declined from 6.70 to 6.34. These findings indicate that mung bean is effective in enhancing soil fertility through organic matter input and biological activity, particularly nitrogen fixation. Nevertheless, the decline in phosphorus and pH values suggests the need for supplementary treatments to maintain soil nutrient balance. Thus, mung bean has strong potential as a cover crop for sustainable rehabilitation of degraded agricultural lands.

Analysis of Red Onion Farming (Allium Cepa) (Case Study: Nagalingga Village, Merek District, Karo Regency

Sarah Gracia, Roida Ervina Sinaga, Sareyanti Ginting, Rohealth Glory — Mon, 30 Jun 2025 00:00:00 -0700

This study was conducted to determine the level of income of shallot farming in the research area is feasible to be cultivated, secondly to analyze the level of feasibility of shallots in the research area is feasible to be cultivated. In sampling using random sampling technique with a sample size of 30 shallot farmers. To analyze the formulation of problem 1, namely analyzing the income of shallot farming. Income is obtained by calculating the difference between the income of shallot farming and all costs used. To test the 2nd hypothesis, namely analyzing the feasibility of shallot farming in the research area, the R/C Ratio and B/C Ratio methods are used. The results of the study showed that the total cost of shallot farming per season is Rp. 13,240,896. where the total income from shallot farming activities is Rp. 42,425,000. The income of shallot farmers in Nagalingga Village is Rp. 29,184,104 per farmer and Rp. 114,218,137 per hectare. And the feasibility of red onion farming is known that the R/C value of red onion farming activities is 3.20 and B/C 2.02, the R/C and B/C values are >1, indicating that red onion farming is economically feasible to be carried out.

THE LEVEL OF FARMERS' TECHNOLOGY ADOPTION TOWARDS THE PROGRAM TO IMPROVE RICE PRODUCTIVITY IN THE VILLAGE OF PEGAGAN JULU VI, SUMBUL DISTRICT, DAIRI REGENCY

Tiur Roma Uli Br Tamba, Sri Hara Bintang Simbolon, Fauzul Azhimah — Mon, 30 Jun 2025 00:00:00 -0700

This study aims to (1) describe the adoption of technology by rice farmers and (2) analyze the level of technology adoption by farmers in the rice productivity improvement program in Pegagan Julu VI Village, Sumbul District, Dairi Regency. The sampling method used was simple random sampling, and data were collected through direct interviews with 30 rice farmers. Data collection used was primary and secondary data. The data analysis technique used was the Rating Scale formula. The level of innovation adoption by rice farmers in Pegagan Julu VI Village, Sumbul District, Dairi Regency is categorized as high. The adoption of technologies such as tractors, organic fertilizers, inorganic fertilizers, pesticides, superior varieties, harvesting machines, and rice threshers has been carried out by rice farmers in Pegagan Julu VI Village, Sumbul District, Dairi Regency. The adoption of this technology in farming can affect productivity. The partial level of technology adoption for the rice paddy productivity improvement program in Pegagan Julu VI Village, Sumbul District, Dairi Regency, based on the research results, includes three stages categorized as high: assessment, trial, and acceptance, and two stages: awareness and interest categorized as medium. Simultaneously, the level of farmer adoption for all stages of technology adoption is categorized as high, with an average value of 2.41.

FARMERS' PERCEPTION OF FACTORS RELATED TO RED CHILI AGRIBUSINESS IN BARUS JAHE DISTRICT, KARO REGENCY

Rajiv Ginting, Bahagia Sibotolungun Sipahutar — Mon, 30 Jun 2025 00:00:00 -0700

Farmers' harvests are sold to wholesalers at low prices, and these wholesalers then sell them to retailers at prices different from the purchase price, creating a price gap between farmers and retailers. This problem necessitates government involvement in maintaining stable prices and ensuring profitability for farmers. Government efforts to maintain stable red chili prices in the market are inseparable from policies designed to maintain stocks and increase red chili production. Many factors can influence the success of red chili production, including the use of superior seeds. Government efforts to maintain stable red chili prices in the market are inseparable from policies designed to maintain stocks and increase red chili production. One factor influencing the success of a government program is the perception of farmers as the program implementers. A positive perception of the program will motivate them to strive to ensure the program's success, thus improving their welfare. From farmers' perceptions, the government, as the program creator, can also identify areas of the program that are not working properly. This will serve as an evaluation tool for the government in developing and implementing the program.