Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal JURNAL ANATOMI FISIOLOGI Jurnal Teknik
Akbar Adjie Pratama
Departemen Biologi, FMIPA, Institut Pertanian Bogor, Jl.Agathis, Kampus IPB Darmaga, Bogor, 16680, telp/fax (0251) 8622833
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pertumbuhan dan Efisiensi Penggunaan Nitrogen pada Padi (Oryza sativa L.) Dengan Pemberian Pupuk Urea yang Berbeda Triadiati, Triadiati; Pratama, Akbar Adjie; Abdulrachman, Sarlan
BULETIN ANATOMI DAN FISIOLOGI dh SELLULA Vol 20, No 2 (2012): VOL XX, NOMOR 2, TAHUN 2012
Publisher : BULETIN ANATOMI DAN FISIOLOGI dh SELLULA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.232 KB) | DOI: 10.14710/baf.v20i2.4767

Abstract

Pupuk kimia nitrogen dalam bentuk urea sudah menjadi kebutuhan pokok petani khususnya di Indonesia, sehingga pemborosan dalam pemakaian urea tidak dapat dihindari. Pemahaman efisiensi penggunaan nitrogen (EPN) pada padi perlu diketahui agar dapat meningkatkan hasil gabah dan mengurangi polusi lingkungan akibat pemakaian pupuk N yang berlebihan. Tujuan dari penelitian ini melakukan kuantifikasi nilai EPN  pada padi. Penelitian dilakukan di persawahan dan rumah kaca. Penelitian di persawahan dilakukan di Balai Besar Penelitian Tanaman Padi (BB Padi)-Subang, Jawa Barat dan petani di sawah Bogor, Jawa Barat. Pupuk N (urea) yang diberikan di BB padi dan petani berurut adalah 225 dan 612,25 kg urea/ha, dengan luas petak percobaan 25 m2. Pada penelitian rumah kaca pupuk N (urea) yang digunakan adalah 200, 300, 400, 500 dan 600 kg urea/ha. Hasil penelitian menunjukkan bahwa Nilai EPN dan resorpsi pada padi yang ditanam di BB Padi lebih tinggi dibandingkan dengan padi yang ditanam di sawah petani. Nilai EPN dan resorpsi padi yang ditanam di rumah kaca tertinggi didapatkan pada perlakuan 500 kg urea/ha. Semakin tinggi ketersediaan nitrogen dalam tanah dan pemberian dosis pupuk N pada batasan tertentu akan menurunkan pertumbuhan tanaman, biomassa tanaman, hasil gabah, EPNT, EPNES, AEPN, PEPN dan resorpsi.
Desain Model Pengendalian Kualitas produk Radiator berbasis Six Sigma dan Acceptance Sampling Paduloh, Paduloh; Pratama, Akbar Adjie; Salsabila, Annisa Ayu
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.633

Abstract

PT KJI is a manufacturing company engaged in the production of car radiators. The quality of the products is the main focus to meet customer standards. The company faces a high Defect rate that exceeds the tolerance limit of 3%, affecting both process efficiency and customer satisfaction. This study aims to identify the root causes of product defects, calculate the sigma level, and design improvements to reduce the defect rate. The Six Sigma method with a DMAIC approach is used to analyse and control the quality of the production process, supported by the application of acceptance sampling based on AQL standards. The analysis covers the production process, inspection systems, and machine maintenance conditions. It was found that the lack of inspection on incoming materials and finished products, as well as irregular maintenance schedules, are the main factors contributing to the high defect rate. Proposed improvements include enhancing inspections of incoming and outgoing products according to AQL and implementing a more consistent machine maintenance schedule. After the implementation of the proposed improvements, there was a significant reduction in the number of Cacative products. The average sigma level increased from 3.8 to 4.7. This improvement had a positive impact on product quality, production process efficiency, and the reliability of the quality control system at PT KJI.
Co-Authors , Triadiati Paduloh Paduloh Salsabila, Annisa Ayu Sarlan Abdulrachman