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Analisis N Total dan Kandungan Logam Berat Cu dan Zn pada Tanah Sawah di Daerah Pengairan Sungai Cikijing Kecamatan Rancaekek Leony Agustine; Rija Sudirja; Rachmat Harryanto
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 7 No 1 (2022)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2022.v07.i01.p06

Abstract

This study aims to determine: 1) evaluate the distribution of total N and the distribution of heavy metals Cu and Zn in paddy fields in the Cikijing River Irrigation Area, Rancaekek District, 2) the amount of total N and the distribution of heavy metals Cu and Zn in paddy fields in the Cikijing River Irrigation Area, Rancaekek District. The experiment was conducted in paddy fields contaminated with factory waste in the Cikijing River Watershed, Rancaekek District and followed with the analysis of the soil at the Laboratory of Soil Fertility and Plant Nutrition, Faculty of Agriculture, Padjadjaran University. The experiment was conducted in February 2017 to November 2017. The determination of sample points is based on Homogeneous Soil Map Unit (SLH), which is made by overlay map on the map of soil types, slope maps and land use maps of research areas. The number of samples is 8, which is located on the 5 villages. The variables observed and measured in this study included total N and heavy metals Cu and Zn. The results showed that the total N in the research area was low and moderate, but at some location points there was a very low N content, while heavy metal Cu at several locations was above the quality standard and heavy metal Zn was above the quality standard.
Identifikasi Unsur Hara Sulfur pada Sistem Irigasi Primer di Tanah Sawah Wilayah Bendungan Arca Kiri, Kabupaten Banyumas Leony Agustine; Amanullah Thaariqa Tri Wibowo; Begananda Begananda
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 6 No 2 (2021)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2021.v06.i02.p04

Abstract

This study aims to determine1) the amount of nutrient content of Sulphur in a paddy field in the irrigation channel of Arca Kirit dam in Banyumas Regency, 2) nutrient distribution of Sulphur in paddy field in the irrigation channel of Arca Kiri dam in Banyumas Regency, and 3) recommendations of Sulphur fertilizers in paddy field in the irrigation channel of Arca Kiri dam in Banyumas Regency. The research was conducted in paddy field, in the irrigation channel of Arca Kiri dam in Banyumas Regency, then continued with analysis of the soil in the Institute of Determining Technology of Agriculture (BPTP), Yogyakarta. The research carried out by the determination of sample points based on a purposive random sampling be based Land Homogenous Unit (SLH). Land Homogenous Unit arranged by overlaying the Administrative Map, Slope Map, and Soil Type Map. The number of samples is 8, which is located in 5 villages. The variables were observed namely the nutrient content of Sulphur, EC, pH (H2O), and BS of land. The results showed that the nutrient content of Sulphur from both SLH relatively high, there were SLH A1 reach 86.20 ppm and SLH A2 reach 85.33 ppm. Sulphur fertilizer recommendations for SLH A1 is 10.64 kg S/ha and SLH A2 is 14.60 kg S/ha.
IDENTIFIKASI SUMBERDAYA LAHAN PADA KETERSEDIAAN LOGAM BERAT (PB, CD DAN CR) TANAH SAWAH DI DAERAH PENGAIRAN SUNGAI CIKIJING KECAMATAN RANCAEKEK Leony Agustine; Rija Sudirja; Rachmat Harryanto
Jurnal Teknologi Pertanian Andalas Vol 22, No 1 (2018)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (659.734 KB) | DOI: 10.25077/jtpa.22.1.22-31.2018

Abstract

Penelitian ini bertujuan untuk: 1) mengevaluasi sebaran pencemaran ketersediaan logam berat (Pb, Cd dan Cr) dari pembuangan limbah pabrik tekstil terhadap tanah sawah di daerah pengairan Sungai Cikijing Kecamatan Rancaekek, 2) mengkaji kandungan ketersediaan logam berat (Pb, Cd dan Cr) dan bahan organik yang terdapat pada tanah sawah di daerah pengairan Sungai Cikijing Kecamatan Rancaekek. Penelitian dilaksanakan pada lahan sawah tercemar logam berat dari limbah pabrik tekstil dari pengairan sungai Cikijing Kecamatan Rancaekek dan dilanjutkan dengan analisis tanah di Laboratorium Kesuburan Tanah dan Nutrisi Tanaman Fakultas Pertanian Universitas Padjadjaran. Penelitian dilakukan dengan penetapan titik sampel didasarkan kepada sistem purposive random sampling. Jumlah sampel adalah 50 yang terletak pada 4 desa. Variabel yang diamati dan diukur dalam penelitian ini meliputi variabel utama yaitu kandungan ketersediaan logam berat (Pb, Cd, dan Cr) dan variabel pendukung meliputi C-organik tanah. Hasil penelitian menunjukkan bahwa kandungan ketersediaan logam berat setiap lokasi sampel masih berada dibawah batas kritis untuk logam berat Pb, Cd dan Cr.
Analisis Kinerja Program Studi Manajemen Terhadap Kompetensi lulusan Universitas Terbuka Deni Surapto; Febrisi Dwita; Irmawati Irmawati; Leony Agustine
JURNAL ADMINISTRASI KANTOR Vol 10 No 1 (2022): Vol 10 No 1 (2022): Jurnal Administrasi Kantor
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Bina Insani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51211/jak.v10i1.1739

Abstract

Abstract: The success of the Study Program is judged by the academic quality offered by the programs so that it can produce graduates who have competencies according to the field of science being studied and are able to compete in the workforce and can play a role in the community. To be able to carry out learning activities properly, the factors that must be considered include: student characteristics, courses, program objectives, geography, technology, scale, and management system. From the aspect of performance quality, UT graduates are expected to improve their self-development skills (advanced studies), leadership skills and teaching skills which in the end the performance of UT graduates has innovative behavior, responsibility, and achievement in work. Respondents consist of graduates and superiors. Quantitative descriptive analysis method was used to describe the results obtained from distributing questionnaires both online and offline. The data obtained will be presented through tables or charts that can explain the attitudes and behavior of graduates and graduate superiors. The results of the study show that the contribution of universities to competence after graduation is 19.5%, especially prioritizing the ability in the field of knowledge that has been provided during this study period as a provision in competition in the world of work and business, followed by learning abilities and research abilities and critical thinking. The next competencies are in terms of increasing the ability to speak English by 9%, the internet, the ability to operate computers and leadership. And the last is competence outside the field of science of 0.81. Keywords: Performance, Study Program, Competence.
Pengaruh Rasio Profitabilitas dan Rasio Aktivitas terhadap Harga Saham pada Perusahaan Sub Sektor Ritel di Indonesia Nurul Kamila; Febrisi Dwita; Adrianus Trigunadi Santosa; Leony Agustine
JURNAL ADMINISTRASI KANTOR Vol 10 No 2 (2022): Vol 10 No 2 (2022): Jurnal Administrasi Kantor
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Bina Insani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51211/jak.v10i2.2035

Abstract

Penelitian ini dilakukan untuk mengetahui pengaruh rasio profitabilitas yaitu Gross Profit margin dan Return on Equity serta rasio aktivitas yaitu Total Aset Turnover dan Working Capital Turnover memiliki pengaruh terhadap harga saham perusahaan ritel di Indonesia. Dalam penelitian terdapat 10 perusahaan ritel yang telah terdaftar di Bursa Efek Indonesia dari tahun 2008 sampai 2020 menggunakan teknik analisis regresi linear berganda. Hasil penelitian ini yaitu pada variabel Gross Profit Margin, Return on Equity dan Total Aset Turnover memiliki pengaruh terhadap harga saham perusahaan ritel sedangkan untuk variabel Working Capital Turnover tidak memiliki pengaruh terhadap harga saham perusahaan ritel di Indonesia. Dari hasil penelitian ini diharapkan dapat memberikan informasi mengenai faktor-faktor yang memengaruhi harga saham perusahaan sehingga para investor dapat melakukan investasi secara tepat. This research was conducted to determine the effect of profitability ratios, namely Gross Profit Margin and Return on Equity and activity ratios, namely Total Asset Turnover and Working Capital Turnover, which have an influence on stock prices of retail companies in Indonesia. In this study, there were 10 retail companies that had been listed on the Indonesia Stock Exchange from 2008 to 2020 using multiple linear regression analysis techniques. The results of this study are that the Gross Profit Margin, Return on Equity and Total Asset Turnover variables have an influence on retail company stock prices while the Working Capital Turnover variable has no effect on retail company stock prices in Indonesia. From the results of this study are expected to provide information about the factors that affect the company's stock price so that investors can invest properly..
Pengaruh Rasio Profitabilitas dan Rasio Aktivitas terhadap Harga Saham pada Perusahaan Sub Sektor Ritel di Indonesia Febrisi Dwita; Nurul Kamila; Adrianus Trigunadi Santosa; Leony Agustine
JURNAL ADMINISTRASI KANTOR Vol 10 No 2 (2022): Vol 10 No 2 (2022): Jurnal Administrasi Kantor
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Bina Insani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51211/jak.v10i2.2144

Abstract

This research was conducted to determine the effect of profitability ratios, namely Gross Profit Margin and Return on Equity and activity ratios, namely Total Asset Turnover and Working Capital Turnover, which have an influence on stock prices of retail companies in Indonesia. In this study, there were 10 retail companies that had been listed on the Indonesia Stock Exchange from 2008 to 2020 using multiple linear regression analysis techniques. The results of this study are that the Gross Profit Margin, Return on Equity and Total Asset Turnover variables have an influence on retail company stock prices while the Working Capital Turnover variable has no effect on retail company stock prices in Indonesia. From the results of this study are expected to provide information about the factors that affect the company's stock price so that investors can invest properly. Keywords: stock prices, activity ratios, profitability ratios
TRANSFER TEKNOLOGI GREEN FERTILIZER UNTUK MENINGKATKAN KESUBURAN TANAH MARGINAL Urai Suci Yulies Vitri Indrawati; Rini Hazriani; Manurung, Rinto; Leony Agustine
Jurnal Abditani Vol. 7 No. 1 (2024): April
Publisher : FAKULTAS PERTANIAN UNIVERSITAS ALKHAIRAAT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31970/abditani.v7i1.286

Abstract

PKM ini bertujuan untuk transfer teknologi pembuatan pupuk organic Green Fertilizer berbasis biochar sekam padi dan kompos kotoran sapi untuk meningkatkan kesuburan tanah Ultisol, untuk budidaya tanaman semusim sehingga dapat meningkatkan ekonomi petani di Desa Sei Jaga A, Kabupaten Bengkayang. Kegiatan PKM ini berlangsung selama 4 bulan dimulai dari kegiatan persiapan, Pelatihan kegiatan inti PKM yaitu pembuatan biochar dari sekam padi dan kompos dari kotoran sapi. Pada akhir kegiatan, dilakukan evaluasi terhadap program- program yang telah dilakukan oleh tim dosen. Evaluasi dilakukan untuk mengetahui hambatan/kesulitan yang dihadapi selama proses kegiatan, dan kemudian didiskusikan untuk diselesaikan. Diharapkan setelah kegiatan PKM ini selesai, petani padi mampu membuat biochar dari sekam padi yang mempunyai kualitas yang baik dan membantu menyuburkan tanah sawah.
TRANSFER TEKNOLOGI PEMBUATAN PUPUK ORGANIK BIOSAKA UNTUK BUDIDAYA SAYUR PEKARANGAN DI DESA PAL IX, KABUPATEN KUBU RAYA Rini Hazriani; Urai Suci Yulies Vitri Indrawati; Manurung, Rinto; Leony Agustine
Jurnal Abditani Vol. 7 No. 1 (2024): April
Publisher : FAKULTAS PERTANIAN UNIVERSITAS ALKHAIRAAT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31970/abditani.v7i1.323

Abstract

Penerapan PKM ini bertujuan untuk  pemberdayaan petani  dalam upaya pembuatan biosaka dari rerumputan segar   di sekitar lahan pertanian, bertujuan   untuk meningkatkan kesuburan tanah Alluvial untuk budidaya sayuran buah, sehingga dapat meningkatkan produksi pertanian di Desa Pal 9, Kabupaten Kubu Raya. Kegiatan PKM ini berlangsung selama 4 bulan dimulai dari kegiatan persiapan, Pelatihan kegiatan inti PKM yaitu pembuatan biosaka dari . pada akhir kegiatan, dilakukan evaluasi terhadap program- program yang telah dilakukan oleh tim dosen. Evaluasi dilakukan untuk mengetahui hambatan/kesulitan yang dihadapi selama proses kegiatan, dan kemudian didiskusikan untuk diselesaikan. Diharapkan setelah kegiatan PKM ini selesai, petani sayur   mampu membuat pupuk organic Biosaka dari bahan organic disekitar lahan pertanian, sehingga membantu menyuburkan tanah pertanian.    
Sosialisasi Pengolahan Tanah untuk Budidaya Tanaman Nanas di Harum Manis Andri Andri; Leony Agustine; Grin Tommy Panggabean
Jurnal Pengabdian Masyarakat Sains dan Teknologi Vol. 3 No. 4 (2024): Desember : Jurnal Pengabdian Masyarakat Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jpmsaintek.v3i4.630

Abstract

Pineapple plants are one of the leading fruits that have high economic potential in Indonesia, but often pineapple cultivation is not optimal, especially in terms of land management. The implementation of this PKM aims to provide socialization on correct soil processing to pineapple farmers in Harum Manis, Kubu Raya Regency. Pineapple farmers in that location still don't understand how to cultivate the land properly and just plant like that. Moreover, there are many obstacles currently faced by farmers, such as land shortages and extreme climate change. The method used in implementing this PKM is direct socialization followed by questions and answers. The activity went very well as shown by the enthusiasm of the farmers participating in this activity. It is hoped that after this PKM activity is completed, pineapple farmers can carry out proper soil processing to increase optimal pineapple growth and production.
Correlation Between Soil Macrofauna and Soil Chemical Properties in Smallholder Palm Oil Plantations Pratama, Raharya; Sulakhudin; Leony Agustine
Jurnal Online Pertanian Tropik Vol. 12 No. 2 (2025): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jpt.v12i2.18252

Abstract

Writing This study aimed to determine the relationship between soil macrofauna communities and soil chemical properties in smallholder oil palm plantations. Field sampling and laboratory analyses were conducted at five observation points arranged diagonally. Soil macrofauna were collected using two methods: the pitfall trap method for surface-dwelling organisms and the monolith method for subsurface organisms. Observed parameters included population abundance, species diversity and richness, organic carbon (C-organic), total nitrogen (N-total), available phosphorus (P), and exchangeable potassium (K-dd). Data were tested for normality and linearity prior to correlation analysis. The results from the pitfall trap method showed that pygmy grasshoppers (Tetrigidae) were strongly correlated with C-organic (r = 0.757) and N-total (r = 0.677), while termites (Termitidae) also showed strong correlations with C-organic (r = 0.612) and N-total (r = 0.553). Carpenter ants (Formicidae) exhibited negative correlations with all soil nutrients, whereas black garden ants (Formicidae) showed a strong positive correlation with available P (r = 0.604). Only one species was found using the monolith method; therefore, no further analysis was conducted. Overall, macrofauna diversity and species richness showed very strong correlations with C-organic and N-total (r > 0.94), and strong correlations with K-dd (r = 0.860). These findings indicate that the availability of organic carbon, nitrogen, and potassium plays a crucial role in shaping soil macrofauna community structure in smallholder oil palm plantations.