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All Journal Jurnal Agrotek Lestari J-PEN Borneo : Jurnal Ilmu Pertanian PERTANIAN TROPIK International Journal of Science and Environment Jurnal KALANDRA Journal Agro-Livestock
Siti Hardianti Wahyuni
Dosen Fakultas Pertanian Universitas Graha Nusantara Padangsidimpuan Kampus I Tor Simarsayang Padangsidimpuan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Mathematics Physics Social Sciences

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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.
Penggunaan Ekstrak Daun Pepaya (Carica papaya) sebagai Insektisida Nabati terhadap Hama Ulat Daun (Spodoptera litura) pada Sawi Doharni; Parmanoan Harahap; siti Hardianti Wahyuni
Journal Agro-Livestock Vol. 3 No. 01 (2025): JAL - Januari
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/hgdg7e24

Abstract

This study aimed to examine the effect of papaya leaf extract (Carica papaya) in controlling leaf-eating caterpillar pests (Spodoptera litura) on mustard greens (Brassica juncea). The research was conducted in Muara Pertemuan Village, Mandailing Natal Regency, from November 2023 to February 2024. The method used was a Randomized Block Design (RBD) with five treatments and six replications, resulting in a total of 30 experimental units. The treatments consisted of A0 (control), A1 (papaya leaf extract 50 g/L water), A2 (100 g/L water), A3 (150 g/L water), and A4 (200 g/L water). The observed parameters included the number of plants infested by Spodoptera litura, the number of damaged leaves, and plant yield. The results showed that increasing the concentration of papaya leaf extract effectively reduced the number of plants and leaves infested by Spodoptera litura. The highest yield was obtained from the treatment with 200 g/L papaya leaf extract, with an average production of 5700 grams.
Co-Authors Dini Puspita Yanti Nst Dini Puspita Yanti Nst Dini Puspita Yanty Dini Puspita Yanty Doharni Edison Purba Harahap, Darmadi Erwin Harahap, Parmanoan Hasanuddin Hasanuddin Jumaria Jumaria Nasution Meiliana Friska Mizan Maulana Muhammad Darwis Muharram Muharram Fajrin Harahap Paisal Henri Hasibuan Parmanoan Rizky Amnah Surya Handayani Syamsul Arifin Tanjung, Yulia Windi Wardi Siregar Zulpan Efendi Nasution