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Penguatan Keterampilan Riset dan Penulisan Tugas Akhir Mahasiswa Fisika Universitas Jambi Anggraini, Rista; Lucky Zaehir Maulana; Yoza Fendriani; Samsidar; Husnul Hamdi; Frastica Deswardani; Febri Berthalita Pujaningsih; Jesi Pebralia; Alrizal; M. Ficky Afrianto; Ichy Lucya Resta
Journal Of Rural Community Development Vol. 3 No. 2 (2026): Volume 3 Nomor 2 2026
Publisher : Jurusan Ilmu Sosial dan Ilmu Politik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/zkmjvj19

Abstract

The completion of a final project is an essential component of higher education and often presents significant challenges for students, including those in the Physics Study Program at Universitas Jambi. Various obstacles, such as difficulties in selecting research topics, formulating research problems, designing research methodologies, and producing academic writing in accordance with scientific standards, may hinder the timely completion of studies. Therefore, this community service activity aimed to enhance students' understanding of research skills and final project writing through a webinar on research and scientific writing enhancement. The activity was conducted online via Zoom Meeting on November 20, 2025, involving students from the Physics Study Program of Universitas Jambi. The methods employed included training and academic assistance through lectures, discussions, and interactive question-and-answer sessions. The effectiveness of the activity was evaluated using pre- and post-webinar questionnaires. The results indicated an improvement in participants' understanding across all assessed aspects. The average percentage of participants categorized as not understanding and having low understanding decreased from 10.92% and 45.22% to 0.92% and 14.44%, respectively. In contrast, the average percentage of participants categorized as moderately understanding and highly understanding increased from 34.78% and 8.54% to 49.32% and 37.16%, respectively. These findings demonstrate that the webinar effectively improved students' understanding of final project preparation. Similar activities should be conducted continuously to support the improvement of scientific writing quality and the timely completion of students' studies.
UJI KORELASI PENGARUH PERUBAHAN PH TANAH DENGAN UNSUR HARA MAKRO DAN MIKRO Tarigan, Vitri Julianta Br; Windhanu, Ilham Jaya; Pebralia, Jesi; Lista, Rizkia Maulida; Septianto, Dimas; Pujaningsih, Febri Berthalitha; Samsidar, Samsidar
JOURNAL ONLINE OF PHYSICS Vol. 11 No. 3 (2026): JOP (Journal Online of Physics) Vol 11 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v11i3.56856

Abstract

Ph tanah merupakan salah satu faktor penting yang mempengaruhi ketersediaan unsur hara dan kesuburan tanah, terutama pada tanah ultisol yang umumnya bersifat masam.  Dimana tanah ultisol merupakan salah satu ordo tanah yang banyak ditemukan di Indonesisa yaitu sekitar 25% dari total keseluruhan daratan di Indonesia. Penelitian ini dilakukan untuk menganalisis hubungan antara pH tanah dengan kandungan unsur hara makro dan mikro pada tanah Ultisol di kabupaten Muaro Jambi. Penelitian menggunakan data sekunder yang dianalisis menggunakan uji Korelasi Pearson. Variabel yang dikaji meliputi pH tanah, unsur hara N, P, K, Ca, Mg, S, Fe, Mn. Zn dan Cl. Hasil penelitian menunjukkan bahwa pH tanah memiliki hubungan yang berbeda terhadap setiap unsur hara. Korelasi positif sangat kuat ditemukan antara pH dengan unsur Ca (r = 0,88), sedangkan pH dan unsur Mg menunjukkan korelasi positif kuat (r = 0,63). Sebaliknya, hubungan pH dengan unsur N, P, K, S, Fe, Mn, dan Zn tergolong lemah hingga sangat lemah. Hasil ini menunjukkan bahwa peningkatan pH tanah cenderung meningkatkan ketersediaan kation basa, terutama pada unsur Ca dan Mg, sementara ketersediaan unsur hara lainnya lebih dipengaruhi oleh faktor-faktor lain seperti bahan organik, pelapukan mineral, kandungan Fe dan Al, kondisi redoks, dan proses pencucian