Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Holistic: Journal of Tropical Agriculture Sciences Jurnal Integritas Serasan Sekundang
Afrizal, Jeri
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Social Sciences

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

Found 2 Documents
Search

 1 
Respon gulma dan tanaman akasia terhadap aplikasi herbisida pra tumbuh Afrizal, Jeri; Harun, M. Umar; Marlina
Holistic: Journal of Tropical Agriculture Sciences Vol. 1 No. 1: (July) 2023
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/hjtas.v1i1.2023.107

Abstract

The study aims to know active ingredients and a dose of pre-emergence herbicides for suppressing weeds growth and it’s the effect on juvenile acacia three months after plant-ing. The study was conducted in PT. Bumi Andalas Permai, The Sugihan Water District, Patch G 3020, The Baung River, Ogan Komering Ilir, South Sumatra. The study used a Randomized Block Design (RBD) and 8 treatments. Without Pre-Emergence Herbicides (T1), Isoxaflutole 150 g․ha-1 (T2), Flumioxazine 100 g․ha-1 (T3), Flumioxazine 200 g․ha-1 (T4), Indaziflame and Iodosulfuron 150 g․ha-1 (T5), Indaziflame and Iodosulfuron 250 g․ha-1 (T6), Sulfentrazon 500 ml․ha-1 (T7), and Sulfentrazon 750 ml․ha-1 (T8). Research started from October 2021 to January 2022. The results showed that the dosed and var-ious of pre-emergence herbicides a significant effect for weeds covered, Specific Leaf Area (SLA) 8, and 12 weeks after application. However, herbicides dit not effect for height and diameter acacia stems. The best treatment to suppress for weed growth was at Indazi-flame and Iodosulfuron 250 g․ha-1, a total weed cover of 8,06 % and dominated by the narrow leave Ottochloa nodosa with SDR value of 78,47 %. The biggest increase for height and diameter of acacia stems was for the active ingredient Sulfentrazon 750 ml. ha-1 which 107,56 cm and a diameter stem 3,62 cm. Highest value for Specific Leaf Area was at a treatment of Control with 119,37 cm².g-1. Treatment of Isoxaflutole 150 g․ha-1 caused a dechlorophyllization effect of acacia leaves with percentage injury of plant to the active ingredient Isoxaflutole is 44,79 %.
PENGARUH KERAPATAN POPULASI PAKCOY (Brassica rapa L.) PADA HIDROPONIK SISTEM RAKIT APUNG Sodikin, Erizal; Harun, M. Umar; Negara, Zaidan P.; Afrizal, Jeri
Jurnal Integritas Serasan Sekundang Vol 4 No 1 (2022): Jurnal Integritas Serasan Sekundang
Publisher : Badan Penelitian dan Pengembangan Daerah KabupatenMuara Enim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64987/jiss.v4i1.48

Abstract

The research was on Saung Hydoponic Bedeng Putih Indralaya from April until June, 2022. The purpose of the study was to determine the best spacing for pakcoy cultivation in hydroponic floating systems. The research activited carried out included installing mulch on styrofoam, seeding seeds, transplanting, observing plant, providing AB mix nutrition, checking ppm, pH, and water temperature, controlling pests and diseases plants, cleaning weeds in hydroponic areas, and harvesting. Pakcoy cultivation on styrofoam measuring 1.5 m x 0.5 m in pond the area 9 m x 1.5 m. Based on observations, cultivation of pakcoy in floating systems the spacing of 25 cm x 20 cm or 10 plants in styrofoam resulted in the plant height of 26.60 cm, number of leaves were 18 , canopy area was 28.75 cm², fresh weight of plant was 210.40 g, and the percentage of plants worth selling was 100%.
Co-Authors Erizal Sodikin M. Umar Harun Marlina Negara, Zaidan P.