Article Per Year (5 Year)
p-Index From 2021 - 2026
1.779
P-Index
This Author published in this journals
All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Agrosains: Jurnal Penelitian Agronomi Agroprimatech Journal of Agrotechnology and Sustainability
Nurdin Sitohang
Program Study Of Agrotechnology, Faculty Of Agriculture, Universitas Katolik Santo Thomas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Karakteristik Buah Dan Biji Kakao (Theobroma cacao L.) Pada Berbagai Altitude Di Dataran Tinggi sitohang, nurdin
AGROSUSTAIN Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The quality of farmers' cacao beans is generally still low today. One of the causes is because they are planted at various altitudes, especially in the highlands. The research focuses on the characteristics of cacao pod and beans at several altitudes in the highlands of North Sumatra. This research is conducted from July 2022 to December 2023 in Simalungun, Karo, Dairi, Samosir, North Tapanuli, and Humbang Hasundutan Regencies of North Sumatra Province. The parameters observed are pod length, pod diameter, pod volume, pod dry weight, bean dry weight, number of beans per pod, average weight per bean at 24 different altitudes between 815 m to 1300 m above sea level, with 10 pieces (replications) respectively in each level. The research results show that the characteristics of cacao pod and beans decrease along with increasing altitude in the highlands. The characteristics of cacao pod and beans in the highlands are still in the normal category compared to those in the lowlands
PENGARUH PEMBERIAN PUPUK ORGANIK DAN ANORGANIK TERHADAP PERTUMBUHAN, PRODUKSI DAN PERSENTASE SERANGAN HAMA GANJUR (Orseolia oryzae) PADA TANAMAN PADI (Oryza sativa L.) Benauli, Arkhiadi; Sitohang, Nurdin; Gusriani, Yunda; Hutasoit, Jaya Febrianto
Agroprimatech Vol. 7 No. 2 (2023): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v7i1.4264

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk dalam menekan persentase serangan Orseolia oryzae pada tanaman padi. Metode dalam penelitian ini menggunakan rancangan acak kelompok (RAK) dengan perlakuan sebagai berikut: F0: kontrol; F1: Kotoran sapi; F2: Pupuk Organik Kompos; F3: Pupuk NPK Tunggal, P4 : Pupuk NPK Majemuk (16:16:16). Penelitian dimulai dengan pembuatan pupuk organik (kotoran sapi dan kompos), penanaman, penerapan perlakuan, pengumpulan data, dan analisis data observasi. Hasil penelitian menunjukkan bahwa pemberian pupuk meningkatkan jumlah anakan, jumlah malai, bobot 1000 butir, produksi per plot dan menurunkan persentase serangan hama Ganjur (Orseolia oryzae). Kotoran sapi adalah perlakuan terbaik.
Application of Organic and Inorganic Fertilizer to Percentage of Attacks of Ganjur Pest (Orseolia oryzae) in Rice Benauli, Arkhiadi; Sitohang, Nurdin; Gusriani, Yunda; Hutasoit, Jaya Febrianto
Agrosains : Jurnal Penelitian Agronomi Vol 25, No 1 (2023): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v25i1.72482

Abstract

Rice plants are a staple food for Indonesian people. Low crop productivity causes farmers to feel at a loss. Low rice yields are also caused by pests that attack plants, one of which is ganjur (Orselia oryzae). Efforts must be made to suppress the ganjur attack by trialling fertilizer application to rice plants. Research was conducted to determine the effect of fertilizer application in reducing the percentage of Orseolia oryzae attacks on rice plants. The method used in this research used a randomized block design (RBD) with 1 treatment factor, namely the type of fertilizer. The treatment levels for the types of fertilizer used are as follows: F0: control; F1: Cow dung; F2: Composted Organic Fertilizer; F3: Single NPK Fertilizer, P4: Compound NPK Fertilizer (16:16:16). The research began with making organic fertilizer (cow dung and compost), planting, applying treatment, collecting data, and analyzing observation data. The research results show that the application of cow dung fertilizer provides the best results compared to other fertilizers. The application of cow dung fertilizer produced the highest data based on the observed variables in this study, namely number of tillers, number of panicles, weight of 1000 grains, production per plot and reduced percentage of gallbladder pest attacks. Based on this research, the application of cow dung fertilizer can suppress attacks by ganjur pests (Orselia oryzae) while increasing the productivity of rice plants.
Co-Authors Arkhiadi Benauli Benauli, Arkhiadi Chairani Hanum Chairani Hanum Ginting, Erika Afulina Br Gusriani, Yunda Harahap, Erwin M. Harefa, Syukur Berkat Hutasoit, Jaya Febrianto Hutauruk, Sixtus Marbun, Arjun Patricius Sipayung, Patricius Purba, Andre Hartono Siregar, Hasril Siregar, Tumpal H.S. Sitanggang, Peby Yunda Gusriani Zagoto, Fran A.