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All Journal Pedagogi: Jurnal Ilmu Pendidikan Jurnal Agro Industri Perkebunan
Sibarani, Ebenezer Muaratama
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Agriculture, Biological Sciences & Forestry Education

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Keefektivan Ekstrak Daun Sirih Hutan Sebagai Pengendali Serangan Hama Penggerek Buah Kopi (Hypothenemus hampei Ferrari) di Lapangan Pardosi, John Agus Sahputra; Wibowo, Arif Ravi; Sibarani, Ebenezer Muaratama
Jurnal Agro Industri Perkebunan Vol. 12 No. 3 (2024)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v12i3.3470

Abstract

The coffee berry borer (CBB), caused by the Hypothenemus hampei Ferrari insect, is a significant pest for coffee farmers, particularly attacking the berries and affecting both the quality and quantity of coffee production. CBB attacks can reduce the quantity and quality of coffee plant production. CBB can be controlled by using botanical pesticides. One such botanical pesticide is derived from the Piper aduncum L. plant, which contains various compounds including dilapiol, piperamidin alkaloid, flavonoids, saponins, steroids, polyphenols, tannins, and terpenoids. This study aimed to test the effectiveness of botanical pesticides from P. aduncum L. in controlling CBB. This experiment used a non-factorial randomized block design (RBD) with one factor studied, namely the effect of variations in the provision of botanical pesticides of Piper aduncum L. with treatments P0 = control; P1 = 15%; P2 = 25%; P3 = 35%; and P4 = chemical pesticides. This experiment consisted of 5 treatment levels with three replications, each containing ten pests. The results showed that treatment P3 (35%) was the most effective concentration in controlling CBB. Botanical pesticides at a concentration of 35% had the same effect as chemical pesticides on the parameters of mortality observation and suppression of pest attack intensity.
PENGARUH KULIAH KERJA PROFESI TERHADAP TINGKAT PENGETAHUAN MAHASISWA TENTANG MANAJEMEN PERKEBUNAN KELAPA SAWIT Wibowo, Arif Ravi; Sibarani, Ebenezer Muaratama; Kusnendi, Faizal Shofwan; Putri, Halida Adistya; Madusari, Sylvia; Handini, Aline Sisi
Pedagogi: Jurnal Ilmu Pendidikan Vol 25 No 1 (2025): Pedagogi: Jurnal Ilmu Pendidikan
Publisher : Fakultas Ilmu Pendidikan Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pedagogi.v25i1.2324

Abstract

In vocational education, field practice is not only considered as a complement, but also as the core of learning that can produce graduates who are ready to contribute directly to the world of work. Professional Job Lecture (PJL) is a mandatory courses in the sixth semester. All learning is carried out practically. This research aims to examine the level of knowledge of students who are participants in the PJL. The research was conducted on 15 August until 31 October 2023 at the Citra Widya Edukasi Oil Palm Polytechnic on all students of the Production Technology of Plantation Crops study program for the year entering 2021. The number of students in the survey was 37 people. The student has participated in PJL activities at the Subang oil palm educational plantation of the Citra Widya Edukasi Oil Palm Polytechnic for 20 days. Primary data was used in this research through filling out questionnaires. Level of confidence and knowledge of students measured by submitting statements and questions in online questionnaire. Questionnaire-filling was carried out on the first day of the PJL and 2 months after the activity was completed. The level of knowledge of students PJL about oil palm plantation management was medium to very high level based on hypothetical data categorization. The majority of students have a high level of knowledge as much as 62.86%. Effective communication based on SKKN topic for Plantation Asisstants was the highest percentage of corecct answers namely 89.86. Self-confidence was increased after PJL with the number of students by 31 people.
Co-Authors Arif Ravi Wibowo Handini, Aline Sisi Kusnendi, Faizal Shofwan Pardosi, John Agus Sahputra Putri, Halida Adistya Sylvia Madusari