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All Journal Jurnal Lahan Suboptimal Jurnal Tadris Matematika (JTMT)
Aprisal Aprisal
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Agriculture, Biological Sciences & Forestry Education Mathematics Other

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Dinamika Beberapa Sifat Fisika Tanah Dibawah Sistem Usahatani Konservasi Pada Lahan Kritis Aripan Di DTA Singkarak Aprisal Aprisal; Bujang Rusman; Indra Dwipa; Refdinal Refdinal; Erlina Rahmayuni; Fajriwandi Fajriwandi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 2 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.5.2.2016.256

Abstract

Aprisal. et al. Dynamics of Some Physical Properties of Soils Under Conservation Farming System on the Critical Land Aripan in the DTA Singkarak. JLSO 5(2):137-144.The conservation farming on critical land can improve the soil properties and maintantain for a periode of time. The purpose of this research is to study the dynamics of critical land’s physical characteristics under the influence of conservation farming at Singkarak Water Catchment Area (DTA) in Nagari Aripan. The analysis of soil sample is conducted in Soil Science Department Laboratory, Faculty of Agriculture, Andalas University. This research is designed with Split Plot Design (RPT). The main plot is a soil processing system which is: conventional soil processing (po), soil processing with mulch (p1), soil processing with compost and manure (p2) and minimum soil processing (p3), while the sub plot consists of three types of plants, they are; sweet corn (t1), soy bean (t2) and peanut (p3). Each treatment is repeated three times. Result of the research is observation data in each season of the first, second and third year. To see the dynamics of soil characteristics, data of each season is viewed through graphic which based on its trend. The result of the research indicates that utilization of critical land with conservation farming system could repair and maintain some physical characteristics of soil in each growing season, such as: decreasing volume, increasing soil organic matter, porosity, and soil permeability. Productivity of soil increases on the conventional processing with mulch, compost, and manure. Conventional soil processing with added compost and manure increases productivity for 32.58% in the first year, 45.16% in the second year, and 59.73% in the third year.
Metafora Kemampuan Berpikir Metafora Siswa Dalam Menyelesaikan Soal Aljabar Nurjasia Nurjasia; Nurfadilah Mahmud; Aprisal Aprisal
JTMT: Journal Tadris Matematika Vol 2 No 2 (2021): Volume 02 Nomor 2 December 2021
Publisher : Universitas Islam Ahmad Dahlan (UIAD) Sinjai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/jtmt.v2i2.718

Abstract

Jenis penelitian ini adalah penelitian deskriptif. Penelitian ini bertujuan untuk menganalisis kemampuan berfikir metafora siswa pada materi aljabar. Subjek penelitian ini adalah siswa kelas XII IPA SMA Negeri 8 Enrekang sebanyak 29 orang siswa. Adapun subjek penelitian sebanyak 6 orang dipilih dengan teknik purposive sampling. Subjek penelitian dipilih untuk mewakili kemampuan berfikir metafora pada kategori tinggi, sedang, dan rendah. Instrumen yang digunakan dalam penelitian ini berupa tes kemampuan berfikir metafora untuk memperoleh data kemampuan berfikir metafora dan pedoman wawancara untuk melengkapi dan memperkuat informasi yang berasal dari pemberian tes pada materi aljabar. Teknik analisis data yang digunakan pada penelitian ini meliputi reduksi data, penyajian data, dan penarikan kesimpulan. Hasil analisis data menunjukkan bahwa kemampuan berfikir metafora siswa pada materi aljabar berada pada kategori sedang. Siswa dengan kemampuan berfikir metafora tinggi yaitu siswa sudah memenuhi ketiga indikator kemampuan berfikir metafora dengan tepat, siswa dengan kemampuan berfikir metafora sedang hanya bisa memenuhi satu atau dua indikator dari kemampuan berfikir metafora, sementara itu, siswa dengan kategori rendah hanya mampu memenuhi satu atau tidak sama sekali indikator dari kemampuan berfikir metafora.
Co-Authors Bujang Rusman Erlina Rahmayuni Fajriwandi Fajriwandi Indra Dwipa Nurfadilah Mahmud Nurjasia Nurjasia Refdinal Refdinal