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All Journal Jurnal AGROSAINS dan TEKNOLOGI Jurnal Pertanian Agros JURNAL AGRONIDA Soil REns Unri Conference Series: Community Engagement Journal of Rural and Urban Community Empowerment Acta Solum
Riskia Trizayuni
Jurusan Agroteknologi Fakultas Pertanian Universitas Riau, Kampus Binawidya, Simpang Baru KM 12,5, Kec. Tampan, Kota Pekanbaru 28293, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Education Energy Environmental Science

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RESPON PERTUMBUHAN SEMANGKA (Citrullus vulgaris L.) TERHADAP APLIKASI MIKORIZA VESIKULAR ARBUSKULAR PADA MEDIA TANAH GAMBUT Warnita; Riskia Trizayuni; A Ardi
JURNAL AGRONIDA Vol. 7 No. 2 (2021): Jurnal Agronida
Publisher : Universitas Djuanda Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jag.v7i2.4669

Abstract

Semangka merupakan tanaman hortikultura yang disukai masyarakat. Keterbatasan lahan dan banyaknya alih fungsi lahan optimal menyebabkan kegiatan budidaya diperluas ke lahan marjinal. Hal ini akan mempengaruhi kualitas semangka yang dihasilkan. Aplikasi mikoriza di lahan suboptimum merupakan salah satu cara memperbaiki kondisi tanah, serta mengurangi masukan kapur dan pupuk yang berlebihan. Penelitian ini dilakukan untuk mendapatkan dosis mikoriza yang memberikan pengaruh terbaik terhadap pertumbuhan semangka pada media tanah gambut. Penelitian ini dilakukan mulai Januari-April 2020 di Dumai, Riau. Penelitian disusun berdasarkan rancangan acak lengkap (RAL) dengan faktor dosis mikoriza, yaitu 10 g/tanaman (A1), 15 g/tanaman (A2), dan 20 g/tanaman (A3). Data dianalisis dengan analisis ragam dilanjutkan dengan Uji DMRT 5%. Hasil penelitian menunjukkan bahwa pemberian dosis mikoriza hanya memberikan pengaruh terhadap luas daun tanaman semangka, dengan hasil terbaik didapat pada pemberian 15 g/tanaman mikoriza.
Keragaan Morfologi dan Fisiologi Seledri pada Pemberian Naungan dan Ekstrak Taoge Trizayuni, Riskia; Warnita; Ardi; Zafitra; Via Permata Sari
Jurnal Agrosains dan Teknologi Vol 10 No 1 (2025)
Publisher : Fakultas Pertanian - UMJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jat.v10i1.26978

Abstract

Celery offers a distinctive flavor to culinary dishes and has biopharmaceutical potential in addressing various health issues. Efforts to obtain high-quality celery in terms of appearance and content continue to be made to meet human needs. The objective of the study is to determine the morphological and physiological responses of celery plants to shade treatment and mung bean sprout extract. The experimental design used a completely randomized design with 2 factors, namely the provision of shade (without shade, 65% shade, 75% shade, and 85% shade) and the provision of bean sprout extract (without bean sprout extract, 10% bean sprout extract, and 30% bean sprout extract). Each treatment was repeated 3 times. Data were analyzed by analysis of variance and Duncan's New Multiple Range Test (5%). Results indicated that 85% shading combined with 30% mung bean sprout extract yielded the highest stomatal density. The same extract concentration also produced the highest chlorophyll a and total content. In contrast, 65% shading resulted in the largest leaf area of celery plants.
PENGARUH PEMBERIAN NAUNGAN DAN ZAT PENGATUR TUMBUH ALAMI TERHADAP PERTUMBUHAN DAN KANDUNGAN APIGENIN TANAMAN SELEDRI (Apium graveolens L.) Trizayuni, Riskia; AArdi, A.; Warnita, W.
Agros Journal of Agriculture Science Vol 24, No 2 (2022): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v24i2.2029

Abstract

Kuantitas kandungan metabolit sekunder menjadi perhatian dalam kelompok tanaman biofarmaka. Berbagai penelitian terkait perbaikan mutu tanaman ini sudah dilakukan, namun kondisi lingkungan yang fluktuatif menyebabkan kegiatan tersebut belum cukup memastikan kandungan metabolit sekunder diproduksi lebih baik pada tanaman. Pemberian naungan dan aplikasi zat pengatur tumbuh alami (ZPT) merupakan hal umum yang dilakukan dalam kegiatan budidaya, namun pembahasan mengenai sejauh mana kedua perlakuan ini mempengaruhi produksi metabolit sekunder tanaman belum terlalu diperhitungkan khususnya dalam penelitian-penelitian di Indonesia. Penelitian ini dilakukan dengan tujuan untuk mendapatkan intensitas naungan dan jenis ZPT alami terbaik yang dapat mempengaruhi pertumbuhan serta kandungan metabolit sekunder (apigenin) pada tanaman seledri. Penelitian dilakukan menggunakan RAL secara faktorial dengan dua faktor, yaitu naungan dan jenis ZPT alami.  Naungan terdiri dari 3 taraf berupa penanaman tanpa naungan, naungan 65%, naungan 75%, dan naungan 85%. Sedangkan jenis ZPT alami terdiri dari penanaman tanpa ZPT,  ZPT dari ekstrak bawang merah, dan ZPT dari ekstrak tauge. Hasil penelitian menunjukkan bahwa interaksi pemberian naungan dan aplikasi ZPT alami mempengaruhi kadar apigenin tanaman seledri. Nilai tertinggi diperoleh pada perlakuan pemberian naungan 65% dan aplikasi ZPT dari ekstrak tauge. Pemberian naungan memberikan pengaruh terhadap tinggi tanaman. Nilai terbaik diperoleh pada pemberian naungan 75%. Aplikasi zpt alami tidak memberikan pengaruh pada semua variabel pengamatan
Upaya Penyuluhan dalam Peningkatan Pengetahuan Petani mengenai Gejala Defisiensi Unsur Hara Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) Zafitra, Zafitra; Khoiri, Muhammad Amrul; Trizayuni, Riskia; Irawan, Joni; Yoseva, Sri; Nasrul, Besri; Effendi AR, Arman; Deviona, Deviona; Simatupang, Freddy Alexander; Habibah, Puan; Efrata, Enriski; Azhari, Ahmad Alwi; Fawrin, Heralda; Purwasandi, Purwasandi
Journal of Rural and Urban Community Empowerment Vol. 7 No. 1 (2025): Oktober
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jruce.7.1.65-70

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan pengetahuan dan keterampilan petani di Desa Sungai Majo, Kecamatan Kubu, Kabupaten Rokan Hilir dalam mengenali serta menangani gejala defisiensi unsur hara pada tanaman kelapa sawit (Elaeis guineensis Jacq.). Metode pelaksanaan mencakup ceramah, diskusi interaktif, demonstrasi lapangan, dan evaluasi berbasis pre-test serta post-test. Materi penyuluhan difokuskan pada identifikasi gejala kekurangan unsur hara esensial seperti N, P, K, Mg, dan B serta penerapan prinsip pemupukan berimbang. Hasil kegiatan menunjukkan peningkatan pengetahuan petani sebesar 80% dalam mengenali gejala defisiensi antar unsur hara. Pendekatan partisipatif mendorong peningkatan literasi agronomi dan kesadaran terhadap pentingnya pengelolaan hara berkelanjutan serta pengendalian organisme pengganggu tanaman secara ramah lingkungan. Melalui kolaborasi antara akademisi dan masyarakat, kegiatan ini berhasil memperkuat kapasitas petani menuju sistem pertanian yang adaptif, efisien, dan berkelanjutan, sehingga petani mampu mengetahui gejala defisiensi unsur hara yang terdapat pada tanaman kelapa sawit di Desa Sungai Majo, Kecamatan Kubu, Kabupaten Rokan Hilir.
Pengaruh Metode Pirolisis Terhadap Rendemen Arang Hayati dari Tandan Kosong Kelapa Sawit dengan Variasi Bentuk Bahan dan Sistem Pembakaran: The Effect of Pyrolysis Method on the Yield of Biochar from Empty Oil Palm Fruit Bunches with Variations in Material Form and Combustion System Zafitra Zafitra; Riskia Trizayuni; Roy Ibrahim; Muhammad Joehari Jamili; Muhammad Amrul Khoiri; Joni Irawan; Heralda Fawrin; Yeni Etma Nazar; Panji Romadhan
Acta Solum Vol. 3 No. 2 (2025): Maret 2025
Publisher : Department of Soil, Faculty of Agriculture, Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/actasolum.v3i2.3299

Abstract

This study aimed to determine the effect of pyrolysis methods on the biochar yield from oil palm empty fruit bunches (EFB) using variations in material form and combustion systems. The research was conducted from March to May 2025 in Sorek Satu, Pelalawan Regency, Riau Province, and in the Soil Science Laboratory, Faculty of Agriculture, Riau University. The study consisted of several treatments: (1) whole EFB – external semi-vacuum combustion, (2) shredded EFB – external semi-vacuum combustion, (3) whole EFB – total internal vacuum combustion, and (4) shredded EFB – total internal vacuum combustion. Collected data from the study were analyzed using descriptive statistics. The results showed that external semivacuum pyrolysis produced a higher biochar yield compared to total internal vacuum pyrolysis, with the highest yield from whole EFB at 45.6% and shredded EFB at 32.8%. The total internal vacuum system failed to produce biochar and only resulted in dry material without undergoing carbonization. The chemical characteristics from the external semi-vacuum combustion system indicated that biochar from whole EFB had higher contents of carbon, potassium, magnesium, boron, and pH, while biochar from shredded EFB tended to have higher contents of nitrogen, calcium, and iron.
Penyuluhan Gejala Defisiensi Unsur Hara Pada Tanaman Kelapa Sawit Dan Pengendalian Organisme Pengganggu Tanaman Di Desa Sungai Majo Kecamatan Kubu Kabupaten Rokan Hilir M. Amrul Khoiri; Zafitra Zafitra; Joni Irawan; Riskia Trizayuni; Besri Nasrul; Sri Yoseva; Heralda Fawrin; Purwasandi Purwasandi
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.273-78

Abstract

This extension activity was carried out in Sungai Majo Village, Kubu Sub-district, Rokan Hilir Regency with the objective of enhancing the knowledge and skills of oil palm farmers in recognizing nutrient deficiency symptoms and implementing strategies for plant pest organism control. The methods applied included lectures, participatory discussions, and field demonstrations. The materials delivered covered the identification of nutrient deficiency symptoms of both macro and micro elements, such as nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), and boron (B), along with their implications for plant growth and productivity. In addition, information was provided on common PPOs found in oil palm plantations and appropriate control techniques based on the principles of integrated crop management. The evaluation results showed an increase in farmers' understanding of nutrient deficiency symptoms from 30% before the activity to 75% after the activity, as well as an increase in understanding of OPT control from 40% to 70%. More than 80% of participants were able to independently identify symptoms of K and Mg deficiencies, and 75% of participants understood balanced fertilization techniques according to recommendations. Farmers also became more capable of recognizing pest attacks and understood environmentally friendly control alternatives, including mechanical, cultural, and biological approaches. Overall, this activity contributed to strengthening farmers’ capacity in sustainable oil palm management.
Kajian Sifat Fisika Tanah Pada Perkebunan Kelapa Sawit (Elaeis guineensis Jacq) di Kecamatan Tambang, Kampar Sari, Via Permata; trizayuni, Riskia; Zafitra, Zafitra
Soilrens Vol 24, No 1 (2026)
Publisher : Dept Ilmu Tanah & Sumberdaya Lahan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v24i1.72278

Abstract

This study aims to identify and analyze the physical properties of soils in oil palm plantation areas in Tambang District, Kampar Regency. Soil sampling was conducted purposively at depths of 0–30 cm and 30–60 cm, and the samples were analyzed in the laboratory for parameters including permeability, moisture content, bulk density (BD), particle density (PD), total pore space (TPS), organic carbon (C-organic), and organic matter. The results showed soil permeability at the 0–30 cm depth was classified as slow (0.47 cm·hour⁻¹), while at the 30–60 cm depth it was moderately slow (1.026 cm·hour⁻¹). Moisture content decreased from 17.63% in the upper layer to 10.14% in the lower layer. BD and PD values were very low, at 0.2171 g·cm⁻³ and 0.6391 g·cm⁻³ in the upper layer, and 0.1382 g·cm⁻³ and 0.5428 g·cm⁻³ in the lower layer. Total pore space was extremely high, at 66.04% and 74.54%, respectively. Organic carbon and organic matter contents were classified as very high at both depths, with values ranging from 56.77% to 57.1% and 97.8% to 98.44%, respectively. The high organic matter content results in low bulk density, high porosity, and substantial water holding capacity; however, the dominance of macropores in the lower layer leads to relatively lower moisture content. These conditions reflect the characteristics of peat soils, which are highly porous but require proper water and nutrient management to optimize oil palm productivity.
Co-Authors A Ardi AArdi, A. Ahmad Alwi Azhari Amrul Khoiri Ardi Arman Effendi Besri Nasrul Deviona Efrata, Enriski Fawrin, Heralda Heralda Fawrin Heralda Fawrin Joni Irawan Joni Irawan, Joni M. Joehari Jamili Panji Romadhan Purwasandi Purwasandi Purwasandi, Purwasandi Roy Ibrahim Simatupang, Freddy Alexander Sri Sri Yoseva Sukatin, Sukatin Via Permata Sari Warnita Yeni Etma Nazar Zafitra