Jurnal Mahkota Agribisnis

Efektivitas Konsentrasi AB Mix dan Zat Pengatur Tumbuh Terhadap Pertumbuhan dan Hasil Seledri (Apium Graveolens L.) Secara Hidroponik

Reflianta Sinaga — 2026-03-31

Celery (Apium graveolens L.) is a leafy vegetable plant with high economic value and is widely used as a food ingredient and traditional medicine. Hydroponic celery cultivation is an effective alternative to increase productivity because it can provide optimal nutrients and water. The success of hydroponic cultivation is greatly influenced by the concentration of AB Mix nutrients and the use of plant growth regulators (PGRs). This study aims to determine the effectiveness of various concentrations of AB Mix and PGRs on the growth and yield of hydroponic celery plants and to determine the best treatment combination. The study was conducted using a factorial Completely Randomized Design (CRD) consisting of two factors. The first factor is the concentration of AB Mix which consists of three levels, namely 800 ppm, 1,200 ppm, and 1,600 ppm. The second factor is the concentration of PGRs which consists of three levels, namely 0 mL L⁻¹, 2 mL L⁻¹, and 4 mL L⁻¹. Each treatment combination was repeated three times. The parameters observed included plant height, number of leaf stalks, and plant fresh weight. Data were analyzed using analysis of variance (ANOVA) followed by Duncan's Multiple Range Test (DMRT) at the 5% level. The results showed that AB Mix concentration significantly affected the number of celery leaf stalks. PGR application also significantly affected the number of leaf stalks and plant fresh weight. The interaction between AB Mix concentration and PGR on celery growth and yield was not significant for all parameters.

Analisis Karakteristik Biofisik Lahan Salin di Desa Sei Siur, Kecamatan Pangkalan Susu

Muhammad Nazarul Yanis — 2026-03-31

Saline land is one of the limiting factors in agricultural land management, particularly in lowland coastal areas that are affected by seawater intrusion, poor drainage, evaporation, and salt accumulation. This study aimed to analyze the biophysical characteristics of saline land in Sei Siur Village, Pangkalan Susu District, Langkat Regency, North Sumatra. The research was conducted using a descriptive survey method through field observation and direct measurement at ten sampling points. The observed parameters included geographic coordinates, slope condition, altitude, soil moisture, and soil temperature. The results showed that all sampling points were located at an altitude of 5–10 m above sea level, with the land slope classified as slightly sloping. Soil moisture varied widely among sampling points, ranging from 0% to 90%, with an average value of 37.6%. The highest soil moisture was recorded at sampling point III, while several points showed very dry conditions. Soil temperature ranged from 30.4°C to 33.0°C, with an average of 31.82°C, indicating a relatively warm lowland soil environment. The variation in soil moisture and temperature indicates differences in micro-land conditions, vegetation cover, drainage, and surface exposure. These conditions may influence salt movement and accumulation in the soil surface layer. Therefore, saline land management in Sei Siur Village should focus on improving drainage, maintaining soil moisture, increasing organic matter input, and using ground cover vegetation to reduce evaporation. Further research involving electrical conductivity, pH, soil texture, bulk density, porosity, and permeability is recommended to determine the salinity status and physical soil quality more accurately.

Analisis Pertumbuhan Usaha Tani Gambir dan Kontribusinya Terhadap Subsektor Perkebunan di Kabupaten Pakpak Bharat

Marino Manik — 2026-03-31

Gambier is one of the plantation commodities that has an important role in improving the economy of rural communities and supporting the plantation subsector. Pakpak Bharat Regency has considerable potential in the development of gambier farming due to its suitable agroclimatic conditions. This study aims to analyze the growth of gambier farming and its contribution to the plantation subsector in Pakpak Bharat Regency. The research method used is descriptive quantitative using secondary data obtained from the Central Bureau of Statistics, Plantation Office, and various related scientific literature. Data analysis was carried out using growth rate analysis, Compound Annual Growth Rate (CAGR), contribution analysis, and descriptive analysis. The results showed that gambier farming experienced fluctuating growth in terms of land area and production during the observation period. Nevertheless, gambier commodities contributed significantly to the plantation subsector and became one of the sources of income for the local community. Factors affecting the development of gambier farming include market prices, land productivity, cultivation technology, and government support. Therefore, sustainable development strategies are needed to improve productivity and competitiveness of gambier commodities in Pakpak Bharat Regency.

Transmisi Harga dan Efisiensi Rantai Pemasaran Pisang Kabupaten Karo

Nelva Meyriani Ginting — 2026-03-31

This study aims to evaluate price transmission and the efficiency of the banana marketing chain in Karo Regency through a simulation of monthly price data for the 2020–2025 period. The variables analyzed include producer prices in Karo, wholesale prices in Berastagi, retail prices in Medan, and retail prices in Deli Serdang. The analysis was conducted using descriptive statistics, marketing margins, the ratio of margins to producer prices, price correlations, log-log price transmission elasticity, unit root tests, Johansen cointegration, and Granger causality summaries. The results indicate that the average margins for the Medan-Karo and Deli Serdang-Karo segments are larger than the Berastagi-Karo. This indicates that distribution costs, damage risk, sorting, and the structure of the marketing chain are important factors shaping retail prices. Long-run elasticity approaching one suggests that changes in Karo producer prices are relatively passed on to the destination market, but the size of the margins indicates that marketing efficiency is not yet optimal. Policy implications include strengthening farmer institutions, improving quality standards and grading, developing price information systems, and coordinating collective transportation to ensure that the share of the price received by farmers can increase.

Upaya Pengembangan Usaha Tani Padi Sawah dan Padi Ladang di Provinsi Kalimantan Tengah

Riska Elsa Rianty Sinaga — 2025-03-31

Rice is a major food commodity that plays a vital role in national food security. Central Kalimantan Province has great potential for the development of irrigated and upland rice farming through various government programs. This study aims to examine efforts to develop irrigated and upland rice farming in Central Kalimantan Province. The research method used is a descriptive method employing a literature review and documentation from various relevant sources. The results of the study indicate that the development of irrigated rice is carried out through the One Million Hectare PLG Program, the Rice Field Expansion Program, and the Food Estate initiative, while the development of upland rice is conducted through the assessment of dryland farming systems and the implementation of Integrated Crop Management (ICM). However, the implementation of these programs still faces challenges such as low productivity, limited agricultural infrastructure, and unfavorable land conditions.