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All Journal Bernas Jurnal Agronomi Tanaman Tropika (JUATIKA) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) International Journal of Educational Research Excellence (IJERE) Jagur: Jurnal Agroteknologi
Noverina Chaniago
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Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences Other

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EFFICIENCY OF NPK FERTILIZATION AND ADDITION OF BIODIVE FERTILIZERS ON THA PRODUCTION OF SOYBEAN (Glycine max (L) Merill) Fenty Maimunah Simbolon; Muhammad Rizwan; Noverina Chaniago; Surya Agus Efendy
International Journal of Educational Research Excellence (IJERE) Vol. 1 No. 2: July-December 2022
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijere.v1i2.647

Abstract

This research was carried out at the Experimental Garden of the Faculty of Agriculture, Islamic University of North Sumatra, Jln. Eka Warni, Medan Johor District, Medan Municipality with a height of ± 25 meters above sea level with flat topography. The aim of the research was to determine the effect of providing biological fertilizer by reducing the dose of NPK fertilizer on soybean crop production. This research used the Factorial Randomized Block Design (RBD) method with two factors studied, namely: The first factor is bio quality (H) biological fertilizer which consists of 2 treatment levels, namely H 0 (Control), H 1 (10 cc/l water); The second factor is NPK fertilizer with 4 treatment levels, namely N 0 (Control), N 1 (20 g/plot), N 2 (40 g/plot) and N 3 (60 g/plot). The parameters observed were the number of pods per plant, seed weight per plant, production per plot and weight of 100 seeds. The results of the research showed that the application of bio quality biological fertilizer had a significant effect on production per plot and the number of pods per plant, but had no significant effect on the weight of seeds per plant and the weight of 100 seeds. Providing NPK fertilizer had a significant effect on the number of pods per plant and seed weight per plant , but had no significant effect on production per plot and the weight of 100 seeds. Meanwhile, the interaction between biological fertilizer and NPK fertilizer had a significant effect on production per plot and seed weight per plant, but had no significant effect on the number of pods per plant and the weight of 100 seeds.
THE EFFECTIVENESS OF COCOPEAT AS A PLANTING MEDIA ON THE GROWTH OF SOME OIL PALM VARIETIES (Elaeis guineensis Jacq) Fenty Maimunah Simbolon; Noverina Chaniago; Abdul Hakim Hutasuhut
International Journal of Educational Research Excellence (IJERE) Vol. 1 No. 1: First Published June 2022
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijere.v1i1.658

Abstract

The purpose of the study was to determine the growth of several oil palm to the application of cocopeat as a growing medium. This research was carried out at the Experimental Garden of the Faculty of Agriculture, Islamic University of North Sumatra, Medan, which is located on Jalan . Karya Wisata, Johor Building, Medan Johor District, Madya City, North Sumatra Province with an altitude of ± 25 m above sea level, air humidity (RH) 68% and flat topography. The research was carried out from January-March 2016. This research used a factorial randomized block design (RBD) with two factors, namely: Cocopeat as a planting media mixture consists of 4 levels: C0 = Topsoil (Control) , C1 = Topsoil: cocopeat not soaked (2: 1) , C2 = Topsoil: cocopeat soaked in a bucket (2: 1) , C3 = Topsoil: cocopeat soaked in running water (2: 1) . The use of several varieties of oil palm consists of 3 levels: V1 = Simalungun SP540 DXP , V2 = Yangambi DXP PPKS718 , V3 = Langkat DXP Langkat. The research results showed that the growth of several oil palm varieties had no significant effect on all treatment parameters. The use of cocopeat had a significant effect on the number of leaves, but had no significant effect on plant height, leaf area , leaf chlorophyll, base weight and dry weight. Good growth was seen when cocopeat was soaked in C3 running water. The interaction of cocopeat with several oil palm varieties had a significant effect on the number of leaves of oil palm seedlings, whereas it had no significant effect on the other treatments.
Optimization of Biological Nitrogen Fixation by Rhizobium Bacteria to Enhance Growth and Yield of Soybean (Glycine max L.) Johannes Pardede; Noverina Chaniago; Murni Sari Rahayu
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4853

Abstract

Rhizobium bacteria play a pivotal role in soybean (Glycine max L.) cultivation through their ability to perform biological nitrogen fixation. The effectiveness of Rhizobium in increasing crop yield is influenced by the soybean variety and the inoculation dose applied. Therefore, the application of Rhizobium inoculants appropriate to soybean varieties has the potential to increase the efficiency of nitrogen utilization in a sustainable and environmentally friendly manner. This study aims to determine the effectiveness of Rhizobium strain doses on the growth and production of two soybean varieties. The study was conducted using a factorial Randomized Block Design (RBD), consisting of two factors: soybean varieties (Anjasmoro and Dega 1) and Rhizobium doses (control/without Rhizobium, 10 g/kg seed, and 15 g/kg seed). Data were analyzed using analysis of variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT) at a significance level of 5%. The results showed that the interaction between soybean varieties and Rhizobium doses had a significant effect on leaf area. The best treatment combination was obtained with the Dega 1 variety and a Rhizobium dose of 15 g/kg of seeds. The Dega 1 variety had a significant effect on seed weight per plant and per plot. This variety demonstrates superior physiological capabilities and adaptability in utilizing growing resources for seed biomass accumulation, thereby contributing to increased national soybean yields. A Rhizobium dose of 15 g/kg seed had a significant effect on the number of root nodules and the number of soybean pods. Therefore, this dosage is recommended as the standard in soybean cultivation using inoculation technology.
Co-Authors Abdul Hakim Hutasuhut Algi Utama Ardiansyah , Arif Prandana Asmanizar Deddy Wahyudin Purba dedi kurniawan Edward Tri Nanda Efendi, Elfin Fenty Maimunah Simbolon Firmansyah Hasibuan Irawati Chaniago Irfan Suliansyah Johannes Pardede Muhammad Rizwan Murni Sari Rahayu Nalwida Rozen Namsen Sartonedi S Girsang Riki Zupriadi Safruddin . Safruddin Safruddin Sri Susanti Ningsih Surya Agus Efendy Syafrizal Hasibuan Yulita Inriyani