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Peningkatan Produktivitas Tanah Sulfat Masam dan Hasil Padi Menggunakan Bioarang dari Limbah Industri Penggergajian Kilang Kayu Bahri, Syamsul; Amin, Adnan; Saputra, Iwan
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 1 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.1.1

Abstract

The study aims to analyze three aspects. (1) Formulation of biochar from wood refinery sawmill waste at pyrolysis temperatures of 450°C and 550°C with pyrolysis times of 2 and 4 hours. (2) The best wood refinery sawing waste biochar dosage to improve the chemical quality of acidic sulfate soil through improving soil pH, Al-dd, N, P, and K of the soil. (3) Growth and production of paddy on acidic sulfate soils by application of ameliorant biochar of waste sawmill wood mill. The research was conducted in acidic sulfate soil in a screen house in the Experimental Garden of the Faculty of Agriculture, Syiah Kuala University. Soil samples and biochar were analyzed at the Soil and Plant Research Laboratory of the Faculty of Agriculture. The study was an experiment using a factorial complete randomized design with two factors: the temperature and pyrolysis time and the dose of biochar. The results showed that the application of biochar waste from sawmill wood refineries had a very significant and significant effect on improving the quality of acidic sulfate soil and the growth and production of rice fields. The formulation of biochar at a pyrolysis temperature of 550°C for 2-hour pyrolysis with 20 tons/ha is the best improvement in acid sulfate soil quality, growth, and rice field production. Keywords: acid sulphate, biochar, paddy
Analysis of The Mental Level of Competition in North Sumatra Tennis Athletes at Pon XXI Aceh – North Sumatra 2024 Riza, Ade Ros; Damanik, Saipul Ambri; Azandi, Filli; Fahrian, Muhammad Andre; Saputra, Iwan; Ishak, Muhammad; asibuan, Muhammad Rafi
Journal Coaching Education Sports Vol. 6 No. 2 (2025)
Publisher : Program Studi Pendidikan Kepelatihan Olahraga Fakultas Ilmu Pendidikan Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/ayfdb273

Abstract

This study aims to determine the mental level of North Sumatra tennis athletes competing in the XXI Aceh – North Sumatra 2024 PON and athletes participating in the PON selection, through the aspects of self-confidence, emotional regulation, concentration, and the influence of coaches during the competition. This study used a descriptive research method with a purposive sampling technique. The sample in this study consisted of 19 respondents. Data collection techniques used questionnaires via Google Forms and interviews. Data analysis was conducted by examining all data obtained from the respondents' questionnaire answers and interview results using a linker scale and converted into percentages. The results of the percentage analysis of the athletes' mental level of competition through each indicator show that the mental level of competition among North Sumatra tennis athletes at PON XXI Aceh – North Sumatra 2024 and Non-PON athletes showed a higher level of self-confidence, namely 80.75%, followed by concentration at 73.05%, and finally emotional regulation at 71.72%. This shows that North Sumatra tennis athletes at PON XXI Aceh – North Sumatra 2024 have problems controlling or managing their emotions, which is reinforced by the results of interviews conducted on the influence of coaches during matches, where athletes admit that when they are under pressure or in critical situations during matches, coaches who are able to read the game and provide the right solutions can help athletes overcome pressure and make better decisions. Understanding the mental aspect of competition will have a positive impact on the match
STUDENTS' INTEREST IN EXTRACURRICULAR FUTSAL SPORTS ACTIVITIES AT STATE MIDDLE SCHOOL 45 MEDAN Forsan Prihastowo; Saputra, Iwan; Nasution, Usman; Harahap, Agustin Sastrawan
Journal of Physical Education, Health and Sports Recreation Vol. 3 No. 2 (2025): Journal of Physical Education, Health and Sports Recreation
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpehsr.v3i2.67323

Abstract

This study aims to determine the level of student interest in futsal extracurricular activities and the factors that influence it at State Junior High School 45 Medan. The method used is a qualitative descriptive method with a survey approach using an instrument in the form of a closed questionnaire consisting of 42 statements. The subjects in this study were 30 students who participated in futsal extracurricular activities. The results of the study showed that the majority of students had a high interest in futsal extracurricular activities. Overall, the results of the study were that 23% of students were in the very high interest category, 60% of students were in the high interest category, 7% of students were in the medium interest category, 7% of students were in the low interest category, and 3% of students were in the very low interest category. Factors that influence student interest are classified into two, namely intrinsic factors (attention, feelings of pleasure, and activity) and extrinsic factors (the role of teachers/coaches, facilities, family support, and the environment). Both factors significantly contribute to the level of student interest in participating in futsal activities at school. This study demonstrates that the success of futsal extracurricular activities is significantly influenced by the efforts of coaches, the availability of adequate facilities, and a supportive environment. These findings are expected to inform evaluation and improvement for schools in managing and developing extracurricular programs to make them more engaging and beneficial for students.
PEMBERDAYAAN PETANI MELALUI PELATIHAN INSEKTISIDA NABATI DI KELOMPOK TANI BAN TIMOH, KECAMATAN SUNGAI RAYA SEBAGAI WUJUD PERTANIAN BERKELANJUTAN Iswahyudi, Iswahyudi; Saputra, Iwan; Fauzia, Arisna; Bravikawati, Marini; Mulyani, Cut
INTEGRITAS : Jurnal Pengabdian Vol 9 No 2 (2025): AGUSTUS - DESEMBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat - Universitas Abdurachman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/integritas.v9i2.7033

Abstract

Desa Buket Drien, Kecamatan Sungai Raya merupakan salah satu desa di Kabupaten Aceh Timur yang memiliki produk unggulan berupa padi dan tanaman holtikultura. Desa ini juga menjadi salah satu penyumbang gabah hasil panen di Kabupaten Aceh Timur. Namun, dalam memanen hasil pertaniannya sering sekali tanaman diserang oleh hama. Contohnya di Kelompok Tani Ban Timoh yang menjadi kelompok tani bergerak di bidang pertanian dengan menghasilkan padi mencapai 1-2 ton/ha setiap musim tanam. Kelompok tersebut juga memiliki kendala dalam pengendalian hama. Hama yang sering menyerang adalah Hama penggerek batang dan pernah menyebabkan gagal panen. Untuk pengendalian dikarenakan jumlahnya banyak, mereka sering menggunakan insektisida sintetis yang memberikan residu pada hasil pertanian mereka. Selain itu, rendahnya tingkat pengetahuan kelompok tani dalam pengelolaan hama terpadu melalui identifikasi lahan sawah sekitarnya dan cara pembuatan insektisida nabati sebagai pengelolaan hama bersifat hayati. Metode yang digunakan yaitu metode edukasi mengenai pengelolaan hama terpadu (PHT) serta jenis-jenis serangan hama dan mengajak aktif untuk ikut demonstrasi pembuatan insektisida nabati. Hasil yang didapatkan dari kegiatan pengabdian ini yaitu penerapan kegiatan pelatihan pembuatan insektisida nabati dapat mengatasi permasalahan petani dalam mengurangi penggunaaan bahan kimiawi. Peningkatan pengetahuan masyarakat juga mengindikasikan keberhasilan kegiatan dikarenakan adanya selisih hasil pre-test dan post-test yang signifikan pada setiap item topik pertanyaan dengan rata-rata mencapai angka 30%.