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All Journal Indonesian Journal of Geography JURNAL SAINS PERTANIAN EQUATOR
Sudrajat, Jajat Sudrajat
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

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Analisis Faktor-Faktor Yang Memengaruhi Permintaan Daging Ayam Broiler Di Kota Pontianak Putri, Maya SariDwi; Sudrajat, Jajat Sudrajat; Hidayat, Rakhmad Hidayat
Jurnal Sains Mahasiswa Pertanian Vol 9, No 1 (2020): Januari 2020
Publisher : Jurnal Sains Mahasiswa Pertanian

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Abstract

Usaha peternakan di Indonesia mempunyai arti penting bagi kehidupan sosial ekonomi sebagian masyarakat terutama untuk mencukupi kebutuhan nutrisi terutama protein hewani akan lebih efisien apabila dilakukan dengan meningkatkan konsumsi pangan yang bersumber dari komoditi peternakan khususnya daging ayam ras (broiler). Tujuan penelitian ini adalah untuk menganalisis faktor yang memengaruhi permintaan daging ayam  ras (broiler) di Kota Pontianak. Teknik pengambilan sampel yang digunakan adalah metode accidental sampling ditemui cocok sebagai sumber data. Jumlah sampel yang  digunakan dalam penelitian ini yaitu 100 responden. Penelitian ini menggunakan analisis regresi linier berganda, data diolah menggunakan program SPSS versi 18.  Variabel yang diamati dalam penelitian ini adalah harga daging sapi, harga daging ayam, jumlah anggota keluarga, pendapatan, umur, pendidikan, harga bawang merah dan harga bawang putih. Hasil analisis  menunjukan bahwa variabel harga daging sapi, jumlah anggota keluarga, pendapatan, umur, pendidikan, harga bawang merah, harga bawang putih memiliki pengaruh positif dan nyata terhadap permintaan daging ayam ras (broiler), sedangkan faktor harga daging ayam ras (broiler) berpengaruh secara negatif terhadap permintaan daging ayam ras (broiler). Kata Kunci: ayam broiler, faktor permintaan, regresi linier berganda,SPSS
Soil Quality Index of Tropical Peatlands Affected by Canal Blockages Nusantara, Rossie Wiedya; Gusmayanti, Evi Gusmayanti; Sudrajat, Jajat Sudrajat
Indonesian Journal of Geography Vol 57, No 2 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.99247

Abstract

This study aimed to determine the Soil Quality Index (SQI) of peatlands where canal blocking was implemented. The research was conducted in two villages in Kubu Raya District, West Kalimantan Province e.g. Madu Sari and Teluk Empening. The sites in Madu Sari were impacted by permanent canal blocking with horticultural crops (M1) and corn (M2), while the sites in Teluk Empening had simple canal blocking with rubber (E1) and horticultural crops (E2). A total of 24 peat soil samples were collected from a depth of 0-20 cm. These samples were analyzed for nineteen physical, chemical, and biological indicators, including peat depth, water-table depth, bulk density, water content, total porosity, permeability, pH, organic carbon, total nitrogen, CN ratio, available phosphorus, exchangeable sodium, exchangeable potassium, exchangeable calcium, exchangeable magnesium, cation exchange capacity, base saturation, ash content, and earthworm. Statistical tests used ANOVA and brown-forsythe to determine the effect of location, as well as tukey test and howell games for further tests. The reduction from 19 to 13 indicators was based on the correlation of the constituent indicators with a value of r>0.5. There are 3 steps  to determine SQI, namely to identification of the minimum data set (MDS), (2) the scoring of the MDS indicators, and (3) the calculation of the SQI value. The SQI values for the sites were 0.64 (good) for M1, 0.56 (moderate) for M2, 0.50 (moderate) for E1, and 0.52 (moderate) for E2, reflecting varying levels of soil quality across the locations. The addition of organic matter from manure has a positive impact on soil quality compared to the application of inorganic fertilisers and intensive tillage.Received: 2024-08-19 Revised: 2024-11-15 Accepted: 2025-08-15 Published: 2025-08-19 
Co-Authors Gusmayanti, Evi Gusmayanti Hidayat, Rakhmad Hidayat Putri, Maya SariDwi Rossie Wiedya Nusantara