AGROSUSTAIN

Monitoring Serangan Dan Pengendalian Hama Ulat Api (Setothosea Asigna) Pada Tanaman Kelapa Sawit Di Perkebunan Tanah Gambus Pt. Socfin Indonesia

Sixtus Hutauruk — Rab, 30 Jul 2025 00:00:00 +0200

Monitoring of Attacks and Control of Fire Caterpillar Pests (Setothosea asigna) on Oil Palm Plants at the Tanah Gambus Plantation of PT. "Socfin Indonesia" aims to describe the results of monitoring and control methods for fireworms in oil palm plantations. This research was conducted in the Three Divisions of Tanah Gambus Plantation, Batu Bara Regency, North Sumatra, from January to April 2024. The study used descriptive methods through field observations, sampling at census points, and re-censuses. Monitoring was conducted to monitor fireworm populations, while primary control was carried out through fogging with Santador 25 EC insecticide and diesel. This paper presents an integrated approach to controlling fireworms, which damage oil palm productivity. This study highlights the important role of routine monitoring, which involves mapping infestation points in specific blocks and establishing infestation criteria (light, moderate, and heavy) to determine appropriate control methods. In addition to chemical techniques, control also considered alternative control methods such as biological control with natural predators. The results showed variations in fireworm populations across blocks, influenced by environmental conditions such as high humidity. Post-control re-censtrals were conducted to measure the effectiveness of these methods

Korelasi Antara Penerapan Pestisida Serta Panen Sering, Pemangkasan, Sanitasi, Pemupukan (Pspsp) Terhadap Hasil Dan Pendapatan Petani Perkebunan Rakyat Kakao Aceh Tenggara

Anuar Ramut — Rab, 30 Jul 2025 00:00:00 +0200

Southeast Aceh is one of the regencies in Aceh Province with high potential in the agricultural sector. Most of the population are cocoa farmers. However, the potential yield is often lost due to a lack of attention to proper cocoa cultivation techniques, including frequent harvesting, fertilization patterns and dosages, sanitation, pruning, and the use of herbicides, insecticides, and fungicides. This study aims to examine the cultivation techniques used by smallholder cocoa farmers in Southeast Aceh Regency. The research was conducted in May 2025 across 12 subdistricts in Southeast Aceh Regency, Aceh Province. This study employs an ex post facto design through field research. The tools and materials used included a questionnaire (Appendix 1). Data were collected through interviews and subsequently analyzed using quantitative and qualitative descriptive methods. The results showed that the average education level of cocoa farmers in Southeast Aceh is high school. The average land area was 6,930.32 m². Sanitation was carried out 3.28 times per year, light pruning 4.43 times per year, and heavy pruning 1.50 times per year. Fertilizer dosages were 160.13 kg/year for urea, 105.02 kg/year for TSP, 91.13 kg/year for KCl, and 126.94 kg/year for manure. Herbicide usage was 2.30 liters/year, insecticides 1.11 liters/year, and fungicides 0.86 liters/year. Harvesting was conducted every 10.54 days, yielding 47.26 kg per frequent harvest, 1.23 tons annually, with an annual revenue of IDR 123,171,759.26, expenditures of IDR 14,642,949.07, and a net profit of IDR 108,528,810.19 per year. Further experimental research is needed on cocoa cultivation techniques—specifically on the application of frequent harvesting, pruning, sanitation, and fertilization—to improve the growth and yield of cocoa plants.

Pengaruh Intensitas Cahaya Matahari Terhadap Perkecambahan Dan Pertumbuhan Biji Gulma (Asystasia Gangetica L)

Lentina Sitinjak — Rab, 30 Jul 2025 00:00:00 +0200

This study aims to control the growth of Asystasia gangetica L plants and observe the effect of sunlight intensity on the germination and growth of Asystasia gangetica L plants. Asystasia gangetica L is often considered a weed that interferes with the growth of cultivated plants, including oil palm. This phenomenon is interesting to study because the growth of this weed can compete with cultivated plants. This research was conducted in the agricultural land of Santo Thomas Catholic University, Medan. North Sumatra. With an altitude of 2.5 - 37.5 meters above sea level (MDPL). This research began in August 2024 until October 2024. This research method uses a non-factorial RAK (Randomized Block Design) consisting of one treatment, namely sunlight intensity and consists of 5 levels, namely: N0: 100% light intensity, N1: 80% light intensity, N2: 60% light intensity, N3: 40% light intensity, N4: 20% light intensity with a linear model. Based on the research results, the intensity of sunlight has a significant effect on the observed parameters, namely germination at ages 1 and 2 MST, plant height at ages 2,4,6,8,10,12 MST, number of leaves at ages 2,4,6,8,10,12 MST, number of branches 4,6,8,10,12 MST, number of panicles 6,8,10,12 MST and number of tubes (capsules) 8,10,12 MST

Karakteristik Buah Dan Biji Kakao (Theobroma cacao L.) Pada Berbagai Altitude Di Dataran Tinggi

nurdin sitohang — Rab, 30 Jul 2025 00:00:00 +0200

The quality of farmers' cacao beans is generally still low today. One of the causes is because they are planted at various altitudes, especially in the highlands. The research focuses on the characteristics of cacao pod and beans at several altitudes in the highlands of North Sumatra. This research is conducted from July 2022 to December 2023 in Simalungun, Karo, Dairi, Samosir, North Tapanuli, and Humbang Hasundutan Regencies of North Sumatra Province. The parameters observed are pod length, pod diameter, pod volume, pod dry weight, bean dry weight, number of beans per pod, average weight per bean at 24 different altitudes between 815 m to 1300 m above sea level, with 10 pieces (replications) respectively in each level. The research results show that the characteristics of cacao pod and beans decrease along with increasing altitude in the highlands. The characteristics of cacao pod and beans in the highlands are still in the normal category compared to those in the lowlands

Pengaruh Pemberian Pupuk Hayati Azotobacter dan Pupuk Kandang Sapi Terhadap Pertumbuhan dan Produksi Tanaman Sawi (Brassica Juncea L.)

Handika Tamba — Rab, 30 Jul 2025 00:00:00 +0200

This research was conducted in Selayang Village, Selesai District, Langkat Regency, North Sumatra Province. Starting in May until July 2024. The purpose of this study was to determine the effect of Azotobacter and cow manure on the growth and production of mustard greens. This study used a Factorial Randomized Block Design (RAK) with 2 treatment factors. The first factor is Azotobacter with the symbol (A) which consists of 2 treatment levels, namely: A1 = 15 ml / Liter of water, A2 = 30 ml / Liter of water. The second factor is Cow Manure (K) which consists of 3 treatment levels, namely: K0 = 0 grams / polybag, K1 = 75 grams / polybag, and K2 = 150 grams / polybag. The parameters observed in this study were plant height (cm), number of leaves (strands), leaf area (cm2), plant wet weight (grams), and plant root wet weight (grams). Azotobacter treatment significantly affected the parameters of leaf area, plant wet weight, and root wet weight. The best treatment was treatment A2 (30 ml/L). Cow manure treatment significantly affected the parameters of plant wet weight and root wet weight. The best treatment was treatment K2 (150 grams/polybag). The interaction of Azotobacter and cow manure treatments significantly affected the parameters of plant height at 4 MST, number of leaves at 4 MST, leaf area, and plant wet weight. The best treatment was the A2K0 treatment (Azotobacter 30 ml/L and cow manure 0 grams/polybag).

Efektivitas Penggunaan Beberapa Jenis Ekoenzim Dalam Pengendalian Hama Ulat Bawang (Spodoptera Exigua) Pada Tanaman Bawang Merah (Allium Ascalonicum L)

Delima Panjaitan — Rab, 30 Jul 2025 00:00:00 +0200

This study aims to determine the effect of concentration and variation of eco-enzyme, as well as the interaction between these two treatments, on the control of beet armyworm (Spodoptera exigua) pests in shallot plants (Allium ascolonicum L). The research was conducted in Sempakata Subdistrict, Medan Selayang District, Medan, at an altitude of 32–50 meters above sea level, from March to August 2024. A Randomized Complete Block Design (RCBD) was used, involving two factors. The first factor was eco-enzyme concentration (E), consisting of four levels: E1 = 5 cc/L water, E2 = 10 cc/L water, E3 = 15 cc/L water, and E4 = 20 cc/L water. The second factor was eco-enzyme variation (V), also consisting of four levels: V1 = Fruit-based eco-enzyme, V2 = Fruit-based eco-enzyme + Garlic, V3 = Fruit-based eco-enzyme + Lemongrass, and V4 = Fruit-based eco-enzyme + Tobacco. Data were analyzed using analysis of variance (ANOVA). The observed parameters included plant height, stem diameter, number of leaves, fresh bulb weight per sample, fresh bulb weight per plot, pest attacks, and pest attack intensity. Based on the results, eco-enzyme concentration had a significant effect on plant height at 4 weeks after planting (WAP), number of leaves at 2 WAP, pest attack intensity at 6 WAP, and a highly significant effect on pest attack intensity at 4 WAP. Eco-enzyme variation had a highly significant effect on plant height, stem diameter at 2 WAP, number of leaves, pest attacks at 4 WAP, and pest attack intensity at 4 and 6 WAP. It also had a significant effect on pest attacks at 2 and 6 WAP and pest attack intensity at 2 WAP. The interaction between eco-enzyme concentration and variation had a significant effect on plant height at 4 WAP and pest attack intensity at 4 WAP. The most effective eco-enzyme variation was the combination of fruit-based eco-enzyme and tobacco

Dampak Pemberian Konsentrasi Eco Enzyme Dalam Upaya Menekan Insidensi Penyakit Virus Kuning Pada Tanaman Cabai Merah (Capsicum Annuum L.)

rio tarigan — Rab, 30 Jul 2025 00:00:00 +0200

This study aims to determine the effect of ecoenzyme in suppressing the intensity of yellow virus disease in red chili plants (Capsicum annum L). This study used a non-factorial Randomized Block Design (RAK), namely with one factor of adding ecoenzyme as an intensity suppressor, consisting of 5 treatment levels, namely E0: control, E1: 10 ml ecoenzyme/liter of water, E2: 20 ml ecoenzyme/liter of water, E3: 30 ml ecoenzyme/liter of water and E4: 40 ml ecoenzyme/liter of water. In carrying out this study, it is necessary to prepare the land, install mulch, fertilize, plant, replant, water, weed and harvest and apply ecoenzyme. The parameters observed were plant height (cm), stem diameter, incidence of red chili plants (Capsicum annum L) on the yellow virus, production or harvest per plot. The provision of ecoenzyme concentration did not significantly affect plant height and stem diameter at the ages of 2, 4 and 6 MST. Addition of nutrients to plants can increase growth, plant immunity to viruses and diseases and increase production for plants. The provision of ecoenzyme concentration affects the diameter of 8 MST and the weight of red chili (Capsicum annum L) per plot. The higher the concentration of ecoenzyme, the better the growth and production of red chili (Capsicum annum L). The provision of ecoenzyme concentration has an effect on suppressing the incidence of yellow virus attacks on red chili (Capsicum annum L) plants