Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

0.23

P-Index

This Author published in this journals

All Journal AGROEKOTEKNOLOGI JOURNAL ON SOCIAL ECONOMIC OF AGRICULTURE AND AGRIBUSINESS Journal of Economic, Bussines and Accounting (COSTING) Jurnal SImetri Rekayasa

Supriadi Supriadi

Universitas Sumatera Utara

Author-ID : 2980399

Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

Published : 22 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3

Analisis Pengaruh Tekstur Dan C-Organik Tanah Terhadap Produksi Tanaman Ubi Kayu (Manihot esculenta Crantz) Di Kecamatan Pegajahan Kabupaten Serdang Bedagai Jayagust K.A Junior Sinaga,; Supriadi Supriadi; Alida Lubis
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The Analysis of Soil Texture and C-Organic Influence for Cassava Production(Manihot esculenta Crantz.) at Sub District Pegajahan, Serdang regency. The research purpose is todetermine the effect of soil texture and C-organic influence of cassava production at Sub DistricPegajahan. The research was conducted on June-July 2013. Sample was taken have a lot of 50farmers by using simple random sampling methode. The parameters was being analiysed were soiltexture and C-organic. Then appraisal data processed with regression method. Final research resultsshown that C-organic effect toward cassava production, sand, silt and clay has no significant effecttoward cassava production. The optimal C-organic for cassava production is 0,203 %, while themean C-organic more than from the optimal C-organic at Sub Distric Pegajahan.Keywords : Soil Texture, C-Organic, Cassava Production

Evaluasi Sifat Kimia Tanah pada Lahan Kopi di Kabupaten Mandailing Natal Wilson Wilson; Supriadi Supriadi; Hardy Guchi
Jurnal Agroekoteknologi Vol 3, No 2 (2015)
Publisher : Universitas Sumatera Utara

This research purposed to evaluate soil chemistry characteristic on coffee land in Mandailing NatalRegency and to know the relationship of soil chemistry characteristic to production which held oncoffee land in Mandailing Natal Regency, Research and Technology Laboratory Agriculture FacultyNorth Sumatra University and Soil Biology Laboratory Agriculture Faculty North Sumatra University.Data is obtained by survey system and data sample is gotten expressly (Purposive Random Sampling)with six parametres i.e. pH, Organic Carbon, Total Nitrogen, Available Phosphate, Cation ExchangeCapacity, and Base Saturation. Data is tested by using assumption classic test i.e. outlier test,normality, linearity, correlation analyze and quadratic regression. The research result show that soilchemistry characteristic is not obviously relationship to production.Keyword : soil chemistry characteristic, coffee production, regression

Hubungan Ketinggian Tempat Dan Kemiringan Lereng Tehadap Produksi Kopi Arabika Sigarar Utang Di Kecamatan Lintong Nihuta Leonard Sihite; Posma Marbun; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 3, No 2 (2015)
Publisher : Universitas Sumatera Utara

The purpose of the study was to know the location with the highest production of arabicca coffee(Coffea Arabica) in Lintong Nihuta regency of Humbang Hasundutan. The study was done withcorelating map of place height, map of slope, map of ground tipe. After overlaying map of groundtipe, elvation, and slope it was found 31 SPT (set of land) with the scale 1 : 25.000. The populationof the research is coffee tree in the study field. Sum of point of sampling for coffee trees are 390sample points. The result of data analysis showed the higest sum of ripe seed coffe production atSiponjot village as SPL (set of land) 12 and the lowest sum of ripe seed coffee production atPargaulan village as SPL 3. The highest weight production of ripe seed coffee production atSiponjot village as SPl (set of land) 12 and the lowest weight production of ripe seed coffeeproduction at Lobutua Village as SPL 2. The highest weight production of dry seed coffee atSibuntuon Parpea as SPL 8 and the lowest weight production of dry seed coffee at PargaulanVillage as SPL 3.Keywords : Height Place, Slope, Coffee Production

Survei Pemetaan P-Potensial Dan P-TersediaTerhadap Produksi Tanaman KelapaSawit (Elaeis Guinensis Jacq.) Di Perkebunan Pt. Buana Estate Kabupaten Langkat M. Qodri Nugraha; Supriadi Supriadi; T. Sabrina
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Survei dan Pemetaan P-Potensial Dan P-Tersedia Terhadap Produksi Tanaman Kelapa Sawit Di Perkebunan Pt Buana Estate Kabupaten Langkat, dibimbing oleh Ir Supriadi MS. sebagai ketua komisi pembimbing dan Prof Dr Ir T. Sabrina MSc. Sebagai anggota komisi pembimbing. Phospor merupakan unsur hara makro yang diperlukan tanaman kelapa sawit untuk mendapatkan produksi yang optimum. Penelitian ini bertujuan untuk memperoleh P-potensial, P-tersedia serta produksi tanaman kelapa sawit di perkebunan PT. Buana Estate Kab. Langkat melalui survei sampel tanah. Tanah yang diambil dari lapangan dianalisis di Laboratorium Kesuburan Tanah dan Nutrisi Tanaman Fakultas Pertanian Universitas Padjajaran, Bandung. Penelitian ini dimulai pada 15 Juli sampai dengan 2 September 2014 dengan metode pengambilan data P-potensial dan P-tersedia menggunakan metode survei. Data produksi bobot TBS kelapa sawit diamati dilapang sesuai dengan sampel tanah. Hasil penelitian ini menunjukan bahwa P-potensial memiliki hubungan yang rendah tetapi berpengaruh nyata terhadap produksi kelapa sawit, P-tersedia memiliki hubungan yang sedang tetapi tidak berpengaruh nyataterhadap produksi kelapa sawit. Secara umum unsur hara P memiliki hubungan yang rendah tetapi berpengaruh nyata dengan produksi kelapa sawit dengan Koefisien determinasi dari P-potensial, P-tersedia dan bobot TBS tergolong rendah yaitu nilai R=0.27.Kata kunci :Produksi kelapa sawit,P-potensial dan P-tersedia, survei

Evauasi Kesesuaian Retensi Hara untuk Tanaman Bawang Merah (Allium ascalonicum) di Kecamatan Baktiraja Kabupaten Humbang Hasundutan Sumatera Utara Dicky Alamsyah Pulungan; Supriadi Supriadi; Bintang Sitorus
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

The aim of this research is to evaluate the suitability of nutrient retention for Shallot (Allium ascalonicum) in Baktiraja Sub-district of Humbang Hasundutan District, North Sumatera Province. The method of this search is survey method with Purposive Random Sampling Method with 30 samples and 3 meters, which is pH, CEC, and C-Organic. The result of this research show that land quality nutrient retentiont at Baktiraja Sub-District of Humbang Hasundutan District for shallot (Allium ascalonicum) is moderately suitable (S2). The characteristics for pH and C-Organic are highly suitable (S1), and at the same time is moderately suitable (S2) for CEC.Keywords: Shallot, pH, CEC, C-Organic

Pemberian Bahan Amandemen untuk Perbaikan Retensi Hara Tanaman Jeruk Manis (Citrus sinensis L.) di Desa Talimbaru Kecamatan Barusjahe Kabupaten Karo Rina Indriany P Pakpahan; Sarifuddin Sarifuddin; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

This study aimed to determine the diverification of the amendment to the base saturation and production of sweet orange. This research was conducted in plantation citrus Talimbaru Village Barusjahe District Regency of Karo with plant age of ± five years and soil analysis at the Laboratory of PT. Socfin Indonesia and Laboratory Research and Technology Faculty of Agriculture, University of North Sumatra. This experiment using a Nonfaktorial Randomized Block Design (RAK) which consists of 5 treatments, namely B0 = Without Amendment (control), BP1 = Cow Manure (8,07 kg/plant), BP2 = Chicken Manure (8.15 kg/plant) , BA1 = Powder Ash (8,11 kg/plant), and BA2 = Shells Palm Oil (8.15 kg/plant) three replications. This research was conducted for 4 months. The parameters were measured soil pH, organic-C, P-available, N-total, CEC, K-exchange, Ca-exchange, Mg-exchange, Na-exchange, base saturation, and production citrus. The results showed that application of amendment materials palm shells and cow manure can improve base saturation so that citrus fruits production increased. Cow manure amendment supply bases Ca and Mg while shells palm oil supply base K in the soil. All amendment increased pH and soil organic C.Keywords : Cow Manure, Chicken Manure, Powder Ash, Shells Palm Oil, Nutrient Retention, CitrusThis study aimed to determine the diverification of the amendment to the base saturation and production of sweet orange. This research was conducted in plantation citrus Talimbaru Village Barusjahe District Regency of Karo with plant age of ± five years and soil analysis at the Laboratory of PT. Socfin Indonesia and Laboratory Research and Technology Faculty of Agriculture, University of North Sumatra. This experiment using a Nonfaktorial Randomized Block Design (RAK) which consists of 5 treatments, namely B0 = Without Amendment (control), BP1 = Cow Manure (8,07 kg/plant), BP2 = Chicken Manure (8.15 kg/plant) , BA1 = Powder Ash (8,11 kg/plant), and BA2 = Shells Palm Oil (8.15 kg/plant) three replications. This research was conducted for 4 months. The parameters were measured soil pH, organic-C, P-available, N-total, CEC, K-exchange, Ca-exchange, Mg-exchange, Na-exchange, base saturation, and production citrus. The results showed that application of amendment materials palm shells and cow manure can improve base saturation so that citrus fruits production increased. Cow manure amendment supply bases Ca and Mg while shells palm oil supply base K in the soil. All amendment increased pH and soil organic C.Keywords : Cow Manure, Chicken Manure, Powder Ash, Shells Palm Oil, Nutrient Retention, Citrus

Survey dan Pemetaan Status Hara K dan C-Organik Pada Lahan Kelapa Sawit yang Terserang Ganoderma di PT. PD PATI Kabupaten Aceh Tamiang Taty Dwie Setya Nasution; Supriadi Supriadi; M. M. B. Damanik
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

ABSTRACT This research aimed to determine the relation of nutrients K and soil organic carbon to the intensity of basal stem rot (Ganoderma sp.) on PT. PD. PATI Aceh Tamiang. This research was conducted at the Laboratory Socfin Indonesia North Sumatera and Soil Biology Laboratory, Faculty of Agriculture, University of North Sumatera, Medan in May 2015 through September 2015. Soil sampling was done by using Purposive Sampling, analysis of K nutrient used K2O extract HCl 25%, analysis of soil organic carbon used Walkey and Black method and interpreted into nutrient status map. The data were processed using correlation and regression. The results showed that the intensity of basal stem rot (Ganoderma sp.) was positively correlated with K. Potassium enable explain its effect on the basal stem rot (Ganoderma sp.) by 16.8%. Keywords: Basal Stem Rot (Ganoderma sp.), Correlation and Regression, Organic Carbon, Potassium, Purposive Sampling ABSTRAKPenelitian ini bertujuan untuk mengetahui hubungan sebaran hara K dan C-organik tanah terhadap intensitas serangan penyakit busuk pangkal batang (Ganoderma sp.) di perkebunan kelapa sawit PT. PD. PATI Kabupaten Aceh Tamiang. Penelitian ini dilakukan di Laboratorium Socfin Indonesia Sumatera Utara dan Laboratorium Biologi Tanah Fakultas Pertanian, Universitas Sumatera Utara, Medan pada Mei 2015 hingga September 2015. Pengambilan contoh tanah dilakukan dengan menggunakan metode Purposive Sampling, analisis hara K mengunakan K2O ekstrak HCl 25% dan analisis kandungsn C-organik menggunakan metode Walkey and Black serta menginterpretasikannya dalam bentuk peta. Data diolah dengan menggunakan uji korelasi dan regresi. Hasil penelitian menunjukkan bahwa intensitas penyakit busuk pangkal batang (Ganoderma sp.) berkolerasi positif dengan K. Kadar K tanah berkemampuan menjelaskan pengaruhnya terhadap intensitas penyakit busuk pangkal batang (Ganoderma sp.) sebesar 16.8%. Kata Kunci : Busuk Pangkal Batang (Ganoderma sp.), C-organik, kalium, Korelasi dan Regresi, Purposive Sampling

Hubungan Ca Dan Mg Dengan Produksi Kelapa Sawit Di Kebun PT. Buana Estate Kabupaten Langkat deddy purba; Supriadi supriadi; Hardy Guchi
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Dari beberapa unsur hara, Ca dan Mg merupakan unsur hara makro yang diperlukan tanaman kelapa sawit untuk mendapat produksi yang diinginkan. Penelitian ini bertujuan untuk memetakan status Ca, Mg dan produksi tanaman kelapa sawit di Perkebunan PT. Buana Estate Kabupaten Langkat. Data tanah dan produksi diambil secara random sampling, lalu dianalisis di Laboratorium Riset dan Teknologi Fakultas Pertanian Universitas Sumatera Utara. Data status Ca, Mg tanah dan produksi digambarkan dengan menggunakan Sistem Informasi Geografis. Hubungan antara Ca, Mg dengan produksi dilakukan dengan regresi. Hasil penelitian ini menunjukkan bahwa status Ca menyatakan sedang, sementara status Mg menyatakan rendah, Ca-tukar dan Mg-tukar berpengaruh tidak nyata terhadap produksi kelapa sawit.

Hubungan Beberapa Faktor Produksi dan Salinitas Terhadap Produktivitas Padi Sawah (Oryza sativa L.) di Desa Rugemuk, Kecamatan Pantai Labu Ropikoh Hasibuan; Supriadi Supriadi; Mariani Sembiring
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

ABSTRACT Rice is a plant that is classified as vulnerable to the maternity environment so that it can reduce productivity. The efficient use of production factors can increase maximum profits for rice production. This study aims to determine the impact of extensive land area, fertilizer application, pesticide on the productivity of paddy rice, to determine the limits of salinity land suitability to productivity of paddy rice. This research was conducted in Rugemuk Village, Pantai Labu District and Laboratory of Chemical and Soil Fertility, Research and Technology, Faculty of Agriculture, University of North Sumatra in July-September 2018. This study uses a purposive sampling method. The parameters measured were extensive of land area, N fertilizer, P fertilizer, K fertilizer, pesticide, salinity and productivity of lowland rice. Data were tested by regression analysis and correlation.The results showed the that : simultaneously the extensive of land area, N fertilizer, P fertilizer, K fertilizer and pesticide are positively correlated to the productivity of paddy rice, in partially salinity correlates negatively to the productivity of paddy rice. Limit the suitability of land for salinity rice between the classes in suitable with unsuitable is 3.74 dS/m. Keywords: lowland rice, factors of production, salinity, land suitability, productivity

ANALISIS TATANIAGA JAMBU BIJI (Psidium Guajava L.) (Studi Kasus : Desa Tanjung Anom, Kec. Pancur Batu, Kab. Deli Serdang) Supriadi Supriadi; Salmiah Salmiah; Lily Fauzia
JOURNAL ON SOCIAL ECONOMIC OF AGRICULTURE AND AGRIBUSINESS Vol 9, No 4 (2018): Volume 9 No. 4 April 2018
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.513 KB)

ABSTRAK Tujuan penelitian ini adalah untuk mengetahui saluran tataniaga jambu biji, fungsi-fungsi yang dilakukan oleh masing-masing lembaga tataniaga, biaya, margin keuntungan yang diterima oleh setiap lembaga tataniaga di masing-masing saluran, dan untuk mengetahui tingkat efisiensi tataniaga jambu biji di daerah penelitian. Metode penentuan daerah penelitian dilakukan secara purposive sampling. Metode penentuan sampel menggunakan rumus Slovin dengan populasi petani jambu biji 44 kepala keluarga dan besar sampel yang diambil sebagai representasi 30 sampel petani jambu biji yang dilakukan dengan metode Simple Random Sampling, yaitu pengambilan sampel secara acak sederhana dengan undian. Untuk lembaga tataniaga ditentukan dengan metode Snowball Sampling. Metode pengumpulan data menggunakan data primer dan data sekunder. Metode analisis data menggunakan analisis deskriptif, analisis margin tataniaga, dan analisis efisiensi tataniaga. Hasil penelitian menyimpulkan terdapat dua saluran tataniaga jambu biji di daerah penelitian, yaitu : Saluran I : Produsen – Pedagang Pengumpul – Pedagang Besar – Pedagang Pengecer – Konsumen dan Saluran II : Produsen – Pedagang Pengecer – Konsumen. Share margin saluran I ditingkat petani, yaitu : daerah Jakarta 0,07%, Batam 0,08%, jambu biji kualitas BS (barang sisa) daerah lokal 0,24%, dan Aceh 0,14%. Share margin saluran II ditingkat petani 0,28% dan ditingkat pedagang pengecer 0,36%. Efisiensi saluran tataniaga jambu biji di daerah penelitian pada saluran I daerah Jakarta lebih besar dari pada daerah Aceh, Batam, dan jambu biji kualitas BS (barang sisa) daerah lokal, yaitu 2,22, 2,10, 1,48, dan 1,03. Sedangkan, efisiensi saluran tataniaga jambu biji II adalah1,74. Kata Kunci: tataniaga, share margin, efisiensi, jambu biji

Co-Authors Ajuan Ritonga Alida Lubis Alida Lubis Andrian Andrian Arif Qaedi Hutagalung Bintang Sitorus Carlos Samuel Daniel Stepanus deddy purba Dicky Alamsyah Pulungan Erlina Erlina Fernando Fernando Hafsah Winda Nst1 Hafsah Winda Nst1 Hafsah Winda Nst1 Hardy Guchi Ivo Andika Hasugian Jayagust K.A Junior Sinaga, Kemala Sari Lubis Leonard Sihite Lily Fauzia M. M. B. Damanik M. Qodri Nugraha Mariani sembiring Meilissa Damayanti Lumban Gaol Meutia Nauly Muhammad Bangun Siregar Muhammad Majid Damanik Novalinda Barus Novita Anggraini Posma Marbun Purba Marpaung Ramadani Ramadani Razali Rina Indriany P Pakpahan Ritha F Dalimunthe Rodrik T Rodrik T Ropikoh Hasibuan Salmiah Salmiah Sarifuddi Sarifuddi Sarifuddin Sarifuddin Sri Fajar Ayu Star Marudur Pangaribuan T Sabrina Taty Dwie Setya Nasution Topan Radika Pranata Siregar Wanaartha Nathalia Pardede Wilson Wilson

Title

Found 22 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 22 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 22 Documents
Search