Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Vegetalika Jurnal Ilmu Pertanian agriTECH Planta Tropika Informatika Pertanian jurnal Ilmu Pertanian (Agricultural Science) Aspirasi: Jurnal Ilmiah Administrasi Negara
Djoko Prajitno
Departemen Budidaya Pertanian, Fakultas Pertanian, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Computer Science & IT Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

Published : 29 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search
Journal : Jurnal Ilmu Pertanian

 1   2 
CIE L*a*b* Color Space Based Vegetation Indices Derived from Unmanned Aerial Vehicle Captured Images for Chlorophyll and Nitrogen Content Estimation of Tea (Camellia sinensis L. Kuntze) Leaves Wahono Wahono; Didik Indradewa; Bambang Hendro Sunarminto; Eko Haryono; Djoko Prajitno
Jurnal Ilmu Pertanian Vol 4, No 1 (2019): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4479.639 KB) | DOI: 10.22146/ipas.40693

Abstract

A lot of digital image techniques to assess crop agronomic character have been developed.  Most of those techniques are based on non-visible light equiped cameras, such as infared wavelengths. This research was aimed to examine the use of commercial digital camera with sensor range in visible light spectrum using CIE L*a*b* color space to estimate chlorophyll and nitrogen content of tea leaf.  Data was collected from an experiment of nitrogen dossage levels on 3 years after prunning tea crops.  The result shows that Lb* Difference Simple Index (LI), a*b* Difference Simple Index (AI), and  a* Vegetation Index (VIA) can be used to estimate tea leaf chlorophyll and nitrogen content.  The relationship between VIA and tea leaf nitrogen content was defined on linear equation y = 1.8382x2 - 0.3099x + 3.0658 with determinant coefficient R² = 0.71.
A Proposed Crop Yield Model Djoko Prajitno
Jurnal Ilmu Pertanian Vol 3, No 7 (1984): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.58716

Abstract

-
Optimasi Produksi Tanaman Untuk Petani Djoko Prajitno
Jurnal Ilmu Pertanian Vol 3, No 2 (1981): Agustus
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.58738

Abstract

-
Suatu Konsep Tentang Stabilitas Serta Kemungkinan Penerapannya Dalam Analisa Sistem Pertanian Djoko Prajitno
Jurnal Ilmu Pertanian Vol 3, No 4 (1981): Desember
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59426

Abstract

-
Karakter Fisiologis Padi Sawah Efisien dan Tanggapan Fosfor (P) Di Tanah Podsolik Merah Kuning Karno Karno; Didik Indradewa; Dja'far Shiddieq; Djoko Prajitno
Jurnal Ilmu Pertanian Vol 14, No 2 (2007): Desember
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59443

Abstract

-
The Effect of Genotype X Environment Interaction on the Estimate of Genetic Variances. A Computer Simulation Study Djoko Prajitno
Jurnal Ilmu Pertanian Vol 2, No 6 (1979): Mei
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59760

Abstract

-
Effect of Genotype X Environment Interaction on the Efficiency of Different Methods of Selection. A Computer Simulation Study Djoko Prajitno
Jurnal Ilmu Pertanian Vol 2, No 8 (1980): Oktober
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59766

Abstract

-
Rancangan Percobaan Faktorial Lengkap untuk Menduga Permukaan Respons Kwadratik dengan Contoh 3^3 Faktorial Djoko Prajitno
Jurnal Ilmu Pertanian Vol 1, No 7 (1973): Mei
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59828

Abstract

-
Keragaman Genetik Lima Populai Ulin Di Kalimantan Timur Berdasarkan Penanda RAPD Harkingto Harkingto; Aziz Purwantoro; Djoko Prajitno; A. Widiyatmoko
Jurnal Ilmu Pertanian Vol 13, No 1 (2006): Maret
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59927

Abstract

-
Program Pemuliaan Konvensional Tanaman Salak di Fakultas Pertanian UGM Djoko Prajitno
Jurnal Ilmu Pertanian Vol 7, No 1 (2000): Juli
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.59977

Abstract

-
Co-Authors A. Widiyatmoko Abdurahman . Aziz Purwantoro Bambang Hendro Sunarminto Ch. Atik Setyowati Didik Indradewa Didik Indradewa Dja'far Shiddieq Dja'far Shiddieq Eko Haryono Harkingto Harkingto Immawati, Dhika Rizky Joko Pramono Karno Karno KHOIRUL ANAM Mohammad Fahrur Rozi Mujib Mujib, Mujib Nasrullah, nFn Noerwijati, Kartika Pratama, Arga Rini Aristin, Rini Setyastuti Purwanti Setyastuti Purwanti, Setyastuti Sulistiorini Sulistiorini Suroso, Rahmad Kurniadi Taryono, nFn Tohari Tohari Tri Marsiwi Wahono Wahono