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All Journal Jurnal Ilmu Pertanian Jurnal Penelitian Pendidikan IPA (JPPIPA) jurnal Ilmu Pertanian (Agricultural Science) Majalah Ilmiah Bijak Jurnal Agrotek Lestari Biologica Samudra J-PEN Borneo : Jurnal Ilmu Pertanian Jurnal Indonesia Raya Jurnal ADAM : Jurnal Pengabdian Masyarakat PERTANIAN TROPIK JUSTER: Jurnal Sains dan Terapan Jurnal Sapta Agrica International Journal of Science and Environment Abdi Wina : Jurnal Pengabdian Kepada Masyarakat Universitas Kristen Wira Wacana Sumba Jurnal KALANDRA Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA) BIOGENIC: Jurnal Ilmiah Biologi Jurnal Agricultural Science Aksi Kita: Jurnal Pengabdian Kepada Masyarakat Journal Agro-Livestock
Siti Hardianti Wahyuni
Dosen Fakultas Pertanian Universitas Graha Nusantara Padangsidimpuan Kampus I Tor Simarsayang Padangsidimpuan
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Effect Of Combination Of Extracts Of Several Rhizomes On Mortality Of Armyworm (Spodoptera sp.) On Sweet Potato Plants (Ipomoea batatas L.) Simbolon, Syamsuddin; Wahyuni, Siti Hardianti; Friska, Meiliana
Jurnal Agricultural Science Vol 19 No 2 (2024): NOVEMBER
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v19i2.283

Abstract

The use of a mixture of rhizome extracts of red ginger, turmeric, and kencur to control armyworms (Spodoptera litura F.) is an important prospect in increasing the yield of sweet potato crops, because plant-based pesticides can be used in single or mixed forms. The study aimed to determine the influence of various mixed effects of different concentrations of extracts of several rhizomes on the mortality of Grayak caterpillar pest (Spodoptera litura F.) on sweet potato plants (Ipomoea batatas L.). As well as determining the concentration of rhizome extract mixture that is more effective in controlling Grayak caterpillar pests (Spodoptera sp.) on sweet potato plants (Ipomoea batatas L.). This study used a method with a Group Random Design (RAK) consisting of 5 treatments and 5 replicates. The treatment is: 1. Control (sterile water application), 2. A mixture of red ginger, turmeric, and kencur rhizome extracts 40%, 50%, 60%, 70%, 80%, 90% through food (Stomach poison). The experiment was arranged in a complete randomized design of four replicates each using instar 2 larvae of Spodoptera sp. as many as 280 heads. Research Results The observation results showed that there was an influence of each concentration tested on the pest Spodoptera sp. through food (Stomach poison) against the larvae of the second instar where the level of attack caused in the instar is very high, so the concentration used is 40%-90%. All concentrations showed a real effect on the larvae of the two instars, at a concentration of 40% a mortality rate of 11.50%, and the highest concentration was 90% with a mortality rate of 80%..
Effect Of Lantana Camara Plant Leaf Extracts On Black Soybean (Glycine soja L.) Plant Pests Simanjuntak, Maria Phibertha; Wahyuni, Siti Hardianti; Dini Puspita Yanty
Jurnal Agricultural Science Vol 19 No 2 (2024): NOVEMBER
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v19i2.294

Abstract

This study aims to determine the effect of leaf and flower extracts (Lantana camara) in controlling pod borers (Etiella zincknella) on black soybean (G. soja (L) Merril). This research was conducted in February-June 2024. The study used the non-factorial RAK (Randomized Group Design) method with treatments: PO = No treatment. P1 = Concentration of 5 grams of Lantana camara leaf extract /L. P2 = Concentration of 10 grams of Lantana camara leaf extract /L. P3 = Concentration of 15 grams of Lantana camara leaf extract /L. P4 = Concentration of 20 grams of Lantana camara leaf extract /L. P5 = Concentration of 25 grams of Lantana camara leaf extract /L. The parameters observed were: Plant height, number of leaves, weight of filled pods, percentage of attack. The treatment of Lantana camara leaf extract did not significantly affect the height, number of leaves and weight of pods of black soybean plants. In the percentage of treatment P0, P1, P2, P3 showed no significant difference to the percentage of black soybean pod sucking pest attack but the four treatments were significantly different from the P4 and P5 treatments.
Effect of pruning on the growth and yield of cucumber (Cucumis sativus L.) Mercy Varieties Gulmat Siregar; Parmanoan Harahap; Wahyuni, Siti Hardianti
Jurnal Agricultural Science Vol 19 No 2 (2024): NOVEMBER
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v19i2.306

Abstract

This study aims to determine the effect of pruning on the growth and yield of cucumber variety Mercy. This research was organized using a Randomized Group Design (RAK) with treatments, namely: No pruning (P0), pruning shoots on the main stem (P1), pruning shoots of all lateral branches after the third internode (P2) and pruning 2 lateral branches that appear first after the 3rd internode (P3) with 5 replications. The variables observed in this study consisted of; plant length, number of leaves, total number of fruits, number of harvestable fruits, harvestable fruit length, harvestable fruit diameter, and harvestable fruit weight. Data were analyzed using the F test and if there were significant differences followed by the 5% BNT test. The results showed that the treatment without pruning (P0) was able to produce a better number of fruits than the pruning treatment, but the number of fruits produced was of poor quality. The best plant results were found in the shoot pruning treatment on the main stem (P1) because it was able to increase the number of leaves 24.19% compared to no pruning treatment (P0).
The Effect of Cow Manure Application on the Growth and Production of Cucumber Plants (Cucumis sativus L.) Jusnita Siregar; Wahyuni, Siti Hardianti; Jumaria Nasutiom
Jurnal Agricultural Science Vol 19 No 2 (2024): NOVEMBER
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v19i2.307

Abstract

Cucumber (Cucumis sativus L.) is one of the vegetable plants that has many benefits, namely besides being able to be used as vegetables, fresh vegetables, salads or pickles, cucumbers are also beneficial for health because the nutritional value of cucumbers is quite good as a source of minerals and vitamins. Efforts to increase cucumber plant production can be influenced by many factors, one of which is fertilization. Fertilization is a determining factor in efforts to increase the availability of nutrients for plants, thus the expected impact of fertilization is not only to increase the yield per unit area but also to be efficient in the use of fertilizers. The method in this research is Non Factorial Randomized Group Design with four treatments and six replications, namely A0 (Control), A1 (Cow dung manure dose of 3 kg / polybag), A2 (Cow dung manure dose of 5 kg / polybag) and A3 (Cow dung manure dose of 7 kg / polybag). The results showed that the treatment of cow dung manure gave a significant effect on the parameters of plant height and fruit weight. The best treatment is found in A3, which is the application of cow dung manure at 7 kg/polybag.
The Effect of NPK Fertilizer on Peanut Crop Production (Arachis hypogaea L.) Andrian Imam Rahmadi; Wahyuni, Siti Hardianti; Meiliana Friska
Jurnal Agricultural Science Vol 19 No 2 (2024): NOVEMBER
Publisher : FAKULTAS PERTANIAN UNIVERSITAS RATU SAMBAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jas.v19i2.308

Abstract

The need for peanuts from year to year continues to increase in line with the increasing population, community nutrition needs, food diversification, and the increasing capacity of the feed and food industry in Indonesia. N, P, and K are important factors and must be available to plants because they function as metabolic and biochemical processes of plant cells. Nitrogen is used as a builder of nucleic acids, proteins, bioenzymes, and chlorophyll. The purpose of this study was to determine the effect of NPK fertilizer on the growth and production of peanut plants. This research was conducted from January 2023 to April 2023 at the Faculty of Agriculture, Graha Nusantara University Padangsidimpuan. The method in this research is Non Factorial Randomized Group Design (RAK) with 4 types of calcium fertilizer treatments: 0 g/polybag (C0), 3 g/polybag (C1), 5 g/polybag (C2) and 7 g/polybag (C3). The results showed that NPK fertilizer affected the number of pods, pod weight and seed weight. The calcium fertilizer treatment that gives the best results on soybean crop production is in the C2 treatment, namely a dose of 5 3 g / polybag.
Kejadian serangan hama pada Perkebunan Kelapa Sawit (Elaeis guineensis Jacq.) di PTPN IV Sosa Wardi Siregar; Siti Hardianti Wahyuni; Jumaria Nasution
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/tghwvv77

Abstract

This study identifies and analyzes the occurrence of pest attacks on oil palm plants in the TBM 3 area. Observations were conducted from August 2023 to November 2023 at PTPN IV Sosa, Padang Lawas Regency. The observation began with conducting a survey at the sample collection sites, which are in the oil palm plantation area of PTPN IV Sosa, Padang Lawas Regency. Samples were taken from several areas, namely TBM 1, TBM 2, TBM 3, and TM. The area observed in each section was 1 hectare, with a population of 143 trees in each observation area. The samples used comprised 10% of the total population, resulting in a total of 14 trees observed per area. Observations started from the 10th row at the 5th tree from the roadside, continuing to the 15th tree, and so on, following that pattern. The results indicate that rats, particularly Rattus rattus tiomanicus, are the most significant pests, with an attack percentage reaching 37.16%. In contrast, the incidence of termite attacks is significantly lower, at 2.87%. Although the impact of termite attacks is not as severe as that of rats, continuous monitoring of termite pest attacks remains necessary, especially on younger, more vulnerable plants. These findings highlight the need for effective and sustainable pest control strategies to maintain the health and productivity of oil palm plants.
Penggunaan Air Kelapa sebagai Sumber Nutrisi Alternatif pada Pertumbuhan Kangkung Darat (Ipomoea reptans Poir.) Zulpan Efendi Nasution; Siti Hardianti Wahyuni; Parmanoan
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/nq297h65

Abstract

The fermentation process with a mixture of coconut water as ZPT and EM4 as a bioactivator. The purpose of this study is to determine the effect of administering several doses of coconut water and enriched with EM4. This study used a Complete Random Design (RAL) with 6 treatments, namely manure and urea (positive control), negative control (no fertilizer), A1 (Coconut Water Fermentation) 10%, A2 20%, A3 30%, and A4 40%. Data analysis using ANOVA was followed by DMRT tests with the SPSS application. The results showed that Based on the results of the study, it can be concluded that the fermentation of coconut water enriched with EM4 has a real effect on the parameters of leaf area and plant height (28 HST) and the number of leaves on the plant (28 HST). The dose of coconut water that gave the best results for plant growth in this study was P4, 
Dinamika Serangan Hama Utama pada Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) di Periode Pra-Produksi Muharram; Parmanoan Harahap; Siti Hardianti Wahyuni
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/qe53vh35

Abstract

This main pest can damage oil palm crops at the unproductive harvest stage (TBM). The purpose of this study is to determine the prevalence of severe pest attacks on non-producing oil palm (TBM) plants. Unproductive crops (TBM) were selected for data collection on the main pest infestation areas. Data from the available regional pest attack observations were obtained by selecting local pest attack data. The observed parameter is the severity of pest attacks in 2022. Observation results show that the rate of rat attacks increases in the dry season, while other pests decrease in the rainy season. From the observation results, it can be concluded that the proportion of damage caused by rats increases in the dry season, while other pests decrease in the rainy season. From June to July, rats (0.35%), horned beetles (0.35%), and yellow beetles (0.15%) were exposed to pests, and from July to August, rats (0.5%) were exposed to horn beetles (0.1%) and beetles. and brown beetles (0.15%). The pest infestation category (rats, horn beetles, and brown beetles) is classified as a light attack.
Potensi Metarhizium anisopliae dalam Menurunkan Populasi Larva Kumbang Badak (Oryctes rhinoceros L.) pada Tanaman Kelapa Sawit Paisal Henri Hasibuan; Siti Hardianti Wahyuni; Meiliana Friska
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/4atjqb69

Abstract

This research was carried out in June 2023 – September 2023. The study was designed using a Complete Randomized Design (RAL) with 4 treatments and 10 replicates. The parameters observed in this study were the percentage of mortality and infection, changes in the behavior of O. rhinoceros larvae, the morphology of O. rhinoceros larvae that showed symptoms of being infected with M. anisopliae and tissue damage at each stage of infection symptoms caused by M. anisopliae fungi. The highest mortality occurred in the M3 treatment (Applied with M. Anisopliae fungus on 25 grams of corn media/jar) with a mortality percentage of 91% on the 20th day after application, while for the M1 and M2 treatments, there was also mortality, but it took longer. Damage to the tissue of O. rhinoceros larvae in each symptom of infection due to the treatment of entomopathogenic fungi M. anisopliae consists of attachment and penetration of fungal spores, infection and growth of mycelium in internal tissues, production of toxins fungi, degradation of hemolymph and vital organs, death and growth of external fungi and the drying and decomposition of the larval body occurs.
Pengaruh Pemberian Pupuk Organik Cair (POC) dan Pupuk Anorganik Terhadap Pertumbuhan dan Produksi Bawang Merah (Allium Ascolonicum L.Varietas Bima) Surya Handayani; Siti Hardianti Wahyuni; Meiliana Friska; Jumaria
Journal Agro-Livestock Vol. 2 No. 02 (2024): JAL - Oktober
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/hf6v8738

Abstract

Shallots are a horticultural commodity that has an important role in the Indonesian economy. The use of liquid organic fertilizer (POC) in shallot cultivation can reduce the use of excess inorganic fertilizer. The aim of this research was to determine the effect of applying liquid organic fertilizer (POC) and inorganic fertilizer on the growth and production of shallots. The research used a randomized block design (RAK) with two factors. The first factor is the POC dose (0, 16 ml, 32 ml), the second factor is the anosganic fertilizer percentage dose of 0%, 50% and 100%. POC is applied every week 8 times, while inorganic fertilizer is applied 7 days after planting (DAP) and 30 DAP. Data analysis used analysis of variance (ANNOVA) and DMRT further test. The results showed that giving POC and a combination of both fertilizers had no significant effect (P>0.05), while giving inorganic fertilizer had a very significant effect on the growth and production of shallots (P<0.01). Providing a 50% dose of inorganic fertilizer produced the tallest plant (38.21 cm), the highest number of leaves (47.53), the highest number of tubers (22.10), the heaviest wet tuber weight (150.05 g) and the heaviest dry weight (132.22 g). ). The effect of giving the best fertilizer on the growth and production of shallots was obtained at a dose of 50% inorganic fertilizer.
Co-Authors Abdul Rahman Suleman Akhiruddin Pulungan Amir Mahmud Andri Pratama Nasution Andrian Imam Rahmadi Arryannur Siregar, Deasy Basitu Rahmat Harahap Cindy Febriany Batubara Dini Puspita Yanti Nst Dini Puspita Yanti Nst Dini Puspita Yanty Dini Puspita Yanty Dini Puspita Yanty Doharni Doharni Pane Doharni Pane Edison Purba Edison Purba Erin Alawiyah Siregar Erin Alawiyah Siregar Erin Alawiyah Siregar, Erin Alawiyah Gulmat Siregar Handayani, Surya Handayanti, Surya Harahap, Darmadi Erwin Harahap, Parmanoan Harahap, Sriwinaty Hasanuddin Hasanuddin Hasanuddin Jumaria Jumaria Jumaria Nasutiom Jumaria Nasution Jumaria Nasution Jusnita Siregar Maulana, Mizan Meiliana Friska Muhammad Darwis Muhammad Darwis Muhammad Noor Hasan Siregar Muharram Muharram Fajrin Harahap Mukhlis Nasution, Andri Pratama Nasution, Zakiyah Paisal Henri Hasibuan Pane, Doharni Parmanoan Parmanoan Harahap Parmanoan Harahap Retna Astuti Kuswardani Rizky Amnah Ryanov Louis Fernando Simanjuntak , Maria Phibertha Simanjuntak, Maria Phibertha Simbolon, Syamsuddin Siregar, Muhammad Saidi Sriwinaty Harahap Sriwinaty Harahap Surya Handayani Surya Handayani Surya Handayani Surya Handayani Surya Handayani Surya Handayani Surya Handayani Surya Handayani Syamsul Arifin Tanjung, Yulia Windi Wardi Siregar Yanty, Dini Puspita Yusriani Nasution Zakiyah Nasution Zulheri Noer Zulpan Efendi Nasution