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Faculty of Agricultural Sciences, Islamic University of Kuantan Singingi Campus Kebun Nenas, Jake Jl. Gatot Subroto KM. 7. Kebun Nenas Jake, Kuantan Singingi, Riau Indonesia 29566
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INDONESIA
Jurnal Agronomi Tanaman Tropika (JUATIKA)
Published by Universitas Islam Kuantan Singingi
ISSN : 2684785X     EISSN : 26561727     DOI : https://doi.org/10.36378/juatika.v7i1
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agronomi Tanaman Tropika (JUATIKA) contains original articles of research, review article/literature review in Agronomy, Plant Protection, and Soil Science
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 327 Documents
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Influence Concentration and Immersion Time, Substance Regulator Growth of IBA (Indole-3-Butyric Acid) Against Early Seedling Growth Cuttings, Plant Jasmine White (Jasminum sambac) Ridwan Fajri; Nova Triani; Pangesti Nugrahani
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.5416

Abstract

White jasmine (Jasminum sambac (L.) Aiton) is an ornamental plant of high economic value that requires access to quality, uniform seeds. Propagation through stem cuttings often faces challenges in root formation and initial growth. This study aims to analyze the effects of Indole-3-Butyric Acid (IBA) concentration and soaking time on the initial growth of white jasmine cuttings. The study employed a factorial completely randomized design with two factors: IBA concentration (0, 50, 100, and 150 parts per million) and soaking time (30, 60, and 90 minutes). The parameters observed included shoot emergence time, shoot length, number of leaves, number of primary roots, and root fresh weight. Data were analyzed using analysis of variance at a 5% significance level. The results showed a significant interaction between concentration and soaking time for all parameters. The combination of 100 ppm IBA with a 60-minute soaking time resulted in the fastest shoot emergence (11.27 days), the longest shoot length at eight weeks after planting (11.27 cm), the highest number of leaves (12.60), the greatest number of primary roots (12.52), and the largest fresh root weight (1.06 g). Treatments without growth regulators showed the lowest values for most parameters. Thus, a concentration of 100 ppm with a 60-minute soaking time was the most effective combination for enhancing the initial growth of white jasmine cuttings. Applying this treatment has the potential to improve seedling quality and uniformity, supporting the development of white jasmine cultivation.
Vegetative Response of Cocoa Seedlings (Theobroma cacao L.) to Nitrophenol Compound Concentration and NPK Fertilizer Dose Kusmiati; Eko Sutrisno; Sischa Febriani Yamesa Away; Putri Chairunnisa
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.5469

Abstract

Cocoa is a vital plantation commodity in Indonesia, but its productivity is hindered by suboptimal seedling quality. This study aimed to evaluate the vegetative growth response of cocoa seedlings to various combinations of nitrophenol compound concentrations and NPK fertilizer doses, and to identify the optimal treatment combination. The experiment was conducted at the Experimental Garden of the Faculty of Agriculture, Pasir Pengaraian University, Riau, from June to October 2025, using a Randomized Complete Block Design (RCBD) with a factorial arrangement. The first factor was the concentration of nitrophenol compounds (0, 1.5, 3.0, and 4.5 ml/L), and the second factor was the NPK fertilizer dose (0, 5, and 10 g per polybag). The parameters measured included plant height, stem diameter, leaf number, root volume, and dry weight. Data were statistically analyzed using an F-test (ANOVA) at the 5% significance level with PKBT-STAT 3.2, followed by the Honestly Significant Difference (HSD) test at the 5% level. The results indicated a highly significant interaction (P < 0.01) between nitrophenol compounds and NPK fertilizer on all measured parameters. The combination of 4.5 ml/L nitrophenol compounds and 10 g/polybag NPK fertilizer produced the best results, with a plant height of 46.00 cm, 17 leaves, a stem diameter of 0.69 cm, a root volume of 6.50 ml, and a dry weight of 4.38 g. These findings demonstrate that increasing both the concentration of the nitrophenol compound and the fertilizer dose synergistically enhances the vigor and quality of cocoa seedlings.
Contribution Biopellets as Energy New Renewable from Stalks, Bunches, Waste, Fresh Fruit Bunches, and Shells Coconut (Cocos nucifera) Brefty Meysi Afrilia F; Ingrid Ovie Yosephine; Giyanto
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.5502

Abstract

Indonesia is the world's largest producer of coconut palm oil, with a total production of 46,986,128 tons in 2023, cultivated over 16,833,985 hectares. This research aims to utilize waste from harvesting fresh fruit bunches (FFB) of coconut palm oil—specifically, bunch stalks and coconut shells—as raw materials for the manufacture of biopellets. Additionally, the study evaluates the influence of varying compositions on the quality characteristics of biopellets, including calorific value, moisture content, ash content, density, and combustion rate. The research employed an experimental method using a Completely Randomized Design (CRD) with a non-factorial arrangement. The treatments consisted of five composition levels of fresh fruit bunches to coconut shell ratios: 100% FFB: 0% shell (K1), 75%: 25% (K2), 50%: 50% (K3), 25%: 75% (K4), and 0%: 100% (K5). Each treatment was replicated three times. The study stages included raw material preparation, chopping, drying of TBS stalks, milling to a particle size of 30 mesh (<0.6 mm), mixing with coconut shell using an adhesive made from gaplek/tapioca flour, pelletizing, drying in an oven at 80°C for 1 hour, and subsequent quality testing according to research parameters. Results indicate that the proportion of coconut shell significantly affects the biopellet characteristics. The highest calorific value was observed in treatment K5 (100% shell) at 3,924.24 cal/g, while the lowest was in K1 (100% FFB) at 3,226.64 cal/g. All treatments met the SNI 8675:2018 standard for moisture content, with the lowest at 5.47% in K5 and the highest at 6.60% in K2. However, ash content across all treatments did not meet the SNI standard, ranging from 22.80% to 36.13%. Biopellet density met the standard, averaging 0.73 g/cm³, and the combustion rate also complied with the standard, averaging 0.00096 g/second. In conclusion, substituting coconut shell for fresh fruit bunch stalks increases the calorific value and improves several quality parameters of biopellets, with the best results observed in treatment K5 for calorific value and moisture content.
Soil Fertility Assessment and Spatio-Temporal Analysis of Paddy Field Change In Gorontalo Under LP2B Policy Yusriyah Atikah Gobel; Merita Ayu Indrianti; Aditya Djaini; Ivan Taslim
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 2 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 2 Mei 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i2.4998

Abstract

This study quantitatively assessed the intrinsic soil quality and spatio-temporal dynamics of paddy field conversion in Gorontalo Regency between 2017 and 2023, specifically under the Sustainable Food Agricultural Land (LP2B) policy. The fundamental inquiry of this research concerns the real efficacy of passive regulatory policy instruments in protecting agricultural natural capital against intense development pressures. Utilizing Sentinel satellite imagery and the Random Forest algorithm within the Google Earth Engine (GEE), detailed change detection and zonal analyses were performed. This was augmented by empirical field sampling and laboratory analysis to quantify the mean levels of critical soil fertility indicators, including Organic Carbon (OC) and Total Nitrogen (TN), in protected and newly established areas. A significant policy paradox was identified. While the regency experienced a net increase of 4,226.54 ha in total paddy field area, the legally protected LP2B zones suffered an undeniable net loss of 23.76 ha. Crucially, the soils lost from LP2B areas were intrinsically superior, exhibiting significantly higher mean levels of OC (3.15% vs. 1.88%) and TN (0.28% vs. 0.15%) compared to the newly established areas outside the LP2B boundary, which utilized lower-quality, marginal land. The most important findings highlight that the policy has failed to preserve the highest quality land, resulting in resource substitution (quality for quantity). This study strongly recommends the adoption of spatially targeted incentive strategies and the integration of a Weighted Land Loss Metric, based on soil fertility parameters, into policy monitoring to ensure the long-term sustainability and resilience of regional food production systems.
DIVERSITAS COCCINELLIDAE PREDATOR PADA EKOSISTEM PERTANAMAN CABAI DI TIGA KECAMATAN KABUPATEN KUANTAN SINGINGI Meli Aprila; Rover Rover; M.Siska Efendi
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 1 No. 1 (2019): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 1 No. 1 January 2019
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v1i1.35

Abstract

ABSTRAKDiversitas Coccinellidae Predator Pada Ekosistem Pertanaman Cabai di Tiga Kecamatan Kabupaten Kuantan Singingi. Penelitian tenatang keanekaragaan dan kelimpahan Coccinellidae Predator di pertanaman cabai telah dilakukan di Kecamatan Benai, Kecaatan Kuantan Tengah dan Kecamatan Gunung Toar selama tiga bulan Desember-Februari. Penelitian bertujuan untuk mempelajari keanekaragaman, kemerataan dan kekayaan Coccinellidae Predator. Pengambilan sampel spesies Coccinellidae Predator dilakukan dengan menggunakan jaring ayun dan koleksi secara langsung pada tajuk tanaman. Keanekaragaman Coccinellidae Predator dihitung menggunakan Shannon-Wienner. Total jumlah Coccinellidae predator yang telah dikumpulkan dalam penelitian ini adalah 146 individu yang terdiri dari 11 spesies, spesies predator yang ditemukan di pertanaman cabai adalah Chilocorus melanophthalmus, Coccinella repanda, Coelophora 9 maculata, Coelophora inaequalis, Illeis cincta, Menochilus sexmaculatus, Ropaloneda decussata, Verania discolor, Verania lineata, Spesies 1 yang mempunyai potensi yang baik untuk mengendalikan kutu daun di pertanaman cabai. KATA KUNCI: Coccinellidae Predator, keanekaragaman, kemerataan, dan kekayaan.
UJI BEBERAPA SIFAT FISIKA TANAH BEKAS TAMBANG EMAS TANPA IZIN ( PETI ) DI TIGA KECAMATAN DI DARATAN SEPANJANG SUNGAI KUANTAN Ades Henrianto; Deno Okalia; Mashadi Mashadi
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 1 No. 1 (2019): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 1 No. 1 January 2019
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v1i1.41

Abstract

ABSTRAK Penelitian ini berjudul Uji Beberapa Sifat Fisika Tanah Bekas Tambang Emas Tanpa Izin ( Peti ) di Tiga Kecamatan Di Daratan Sepanjang Sungai Kuantan. Waktu penelitian selama 5 bulan terhitung dari bulan Agustus sampai dengan Desember 2015. Tujuan penelitian ini adalah untuk mengetahui beberapa sifat fisika tanah bekas tambang emas tanpa izin (PETI) di tiga Kecamatan di daratan sepanjang bagian hilir sungai kuantan. Pelaksanaan penelitian ini dilakukan dengan menggunakan metode survai yang terdiri dari empat tahap yaitu: 1) pra survai, 2) survai utama (pengambilan sampel tanah) di lapangan, 3) analisis tanah di laboratorium, 4) pengolahan data. Pengambilan sampael tanah terdiri dari 2 cara yaitu sampel tanah beragregat utuh dan sampel tanah terganggu di tiga kecamatan sepanjang sungai kuantan (Pangean, Inuman, Cerenti) dengan masing-masing tiga ulangan pada setiap lahan tersebut dengan dua kedalaman (0-20cm dan 20-40cm), sehingga diperoleh 54 sampel tanah. Berdasarkan penelitian yang telah dilakukan dapat disimpulkan bahwa Pertambangan Emas Tanpa Izin (PETI) telah merusak sifat fisika tanah terutama tanah lapisan atas 0-20 cm. Tekstur tanah lapisan atas pada kedalaman 0-20 cm memiliki tekstur yang mengandung pasir dibandingkan tanah yang ditanami karet. Kandungan bahan organik pada PETI yang berbeda pada kriteria sangat rendah, hanya terdapat pada satu lokasi pada kedalaman 20-40 cm yaitu di Kecamatan Inuman. Sedangkan di perkebunan karet memiliki kandungan bahan organik kriteria rendah. Berat volume pada lahan bekas tambang emas umumnya berada pada kriteria tinggi sedangkan pada perkebunan karet memiliki criteria sedang sampai tinggi.
PENGGUNAAN BERBAGAI KONSENTRASI RAGI TERHADAP PERTUMBUHAN SUBKULTUR JARINGAN MANGGIS (Garcinia mangostana L) SECARA IN-VITRO Astri Marlina; Tri Nopsagiarti; Jamalludin Jamalludin
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 1 No. 1 (2019): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 1 No. 1 January 2019
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v1i1.46

Abstract

ABSTRAK Penelitian ini bertujuan untuk mengetahui penggunaan berbagai konsentrasi Ragi terhadap pertumbuhan subkultur jaringan manggis secara In-Vitro. Rancangan yang digunakan adalah Rancangan Acak Lengkap non faktorial yang terdiri dari 4 taraf perlakuan dan 3 kali ulangan, yaitu pemberian Ragi 0 % ; 4,5 %; 9 % ; dan 13,5 %. Dengan demikian penelitian ini terdiri dari 12 unit percobaan. Setiap unit percobaan terdiri dari 1 botol kultur yang masing-masing berisi 2 eksplan. Parameter yang diamati dalam penelitian ini antara lain : umur muncul tunas (hari), jumlah tunas (minggu), panjang tunas (cm), berat planlet (mg). Data pengamatan dianalisis secara statistik dan uji lanjut menggunakan BNJ pada taraf 5 %. Berdasarkan hasil penelitian dapat disimpulkan bahwa pemberian ragi tidak berpengaruh nyata terhadap umur mucul tunas manggis (Garcinia mangostana L.), sedangkan parameter pengamatan lainnya berpengaruh nyata, dimana perlakuan terbaik terdapat pada R2 (Pemberian Konsentrasi Ragi 9 %) dengan jumlah tunas 2,5 tunas, panjang tunas 2,78 cm, berat planlet 0,25 mg.
UJI PEMBERIAN PUPUK ISKANDAR MUDA (PIM) ORGANIK TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN SAWI (Brassica juncea. L) Afmerta D; Chairil Ezward; Mashadi Mashadi
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 1 No. 1 (2019): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 1 No. 1 January 2019
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v1i1.49

Abstract

ABSTRAK Penelitian ini telah dilaksanakan di Kelurahan Lubuk Jambi Kecamatan Kuantan Mudik Kabupaten Kuantan Singingi. Waktu penelitian dimulai pada Bulan Juni sampai Agustus 2016. Tujuan penelitian ini untuk mengetahui uji pemberian pupuk iskandar muda (PIM) organik terhadap pertumbuhan dan produksi tanaman sawi (Brassica juncea. L). Metode penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) Non Faktorial yaitu Pupuk Iskandar Muda (PIM) Organik yang terdiri dari 6 taraf perlakuan dan 3 ulangan dengan jumlah plot sebanyak 18 buah dengan ukuran 80 cm x 80 cm. Perlakuan P0 = tanpa pemberian PIM Organik, P1 = Pemberian PIM Organik 0,5 ton/ha, setara dengan 32 gr/plot, P2 = Pemberian PIM Organik 1 ton/ha, setara dengan 64 gr/plot, P3 = Pemberian PIM Organik 1,5 ton/ha, setara dengan 96 gr/plot, P4 = Pemberian PIM Organik 2 ton/ha, setara dengan 128 gr/plot dan P5 = Pemberian PIM Organik 2,5 ton/ha, setara dengan 160 gr/plot. Data-data dianalisis secara statistik, dengan uji lanjut beda nyata jujur (BNJ) pada taraf 5%. Berdasarkan hasil penelitian, maka disimpulkan bahwa pemberian Pupuk Iskandar Muda (PIM) organik memberikan pengaruh yang nyata terhadap jumlah daun dan berat segar tanaman. Perlakuan terbaik terdapat pada perlakuan P5 (Pemberian PIM Organik 2,5 ton/ha, setara dengan 160 gr/plot) dengan jumlah daun 15,22 helai dan berat segar tanaman 499,56 gram/tanaman.
PEMANFAATAN PUPUK KOMPOS JAGUNG MANIS DALAM MENINGKATKAN PRODUKSI TANAMAN JAGUNG (Zea mays L) PADA TANAH ULTISOL A Haitami; Wahyudi Wahyudi
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 1 No. 1 (2019): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 1 No. 1 January 2019
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v1i1.55

Abstract

ABSTRACT The aim of this research was to study influence utilization of composted corn straw fertilizer in improving the production of plant corn (Zea mays L.) on an ultisol soil. The research was conducted at Koto kari Kuantan Singingi of Riau, from Mei to July 2017. It used a Randomized Bolock Design Consisting of 5 levels of treatment and 3 groups so that there are 15 experimental units. The treatment given is: A = No Treatment (control), B = Compost of Corn Straw 10 tons / ha + 100% inorganic fertilizer, C = Corn straw Compost 20 tons / ha + 100% inorganic fertilizer, D = Corn straw Compost 30 tons / Ha + 100% inorganic fertilizer, E = 100% Inorganic Fertilizer. The observed parameters were Plant height (cm), Age of female flower (HST), Harvest Age (HST), Heavy corn weight (gram), and Weight of corn without gram (gram). Data of observation result of each treatment were analyzed statistically and performed by Brightness Honest test (BNJ) at 5% level. Composting of corn straw compost has significant effect on all parameters of observation, where the best treatment is the application of 30 tons / ha of 100 ml of corn straw compost / 100 inorganic fertilizer.
The Effect Of Seed Size Against The Growth Of Seedlings Of Cocoa (Theobrama Cacao L.): Pengaruh Ukuran Benih Terhadap Pertumbuhan Bibit Kakao (Theobrama cacao L.) wahyudi wahyudi
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 1 No. 2 (2019): Volume 1. No. 2 July 2019. Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v1i2.143

Abstract

The purpose of this study was to determine the effect of seed size on the growth of cacao seedlings (Theobrama cacao L.). The purpose of this study was to determine the effect of seed size on the growth of cacao seedlings (Theobrama cacao L). The design used in this study is Non Factorial Randomized Group Design (RBD). That is the size of the cocoa seed (S) consists of 3 levels of treatment, each treatment was repeated as many as 5 replications so that 15 units of experiment were obtained. Each experimental unit consists of 4 plants, 3 of which are used as sample plants. The treatment is as follows: S1: Size of weight> 2 grams per seed. S2: Medium Size 1.4-1.6 grams per seed. S3: Small Size <1 gram per seed Observation data were statistically analyzed and continued with a further test of real honest difference at the 5% level. The parameters observed were: germination (%), plant height (cm), number of leaves (strands), root volume (ml), wet weight of plants (grams). Based on the results of this study it can be concluded that the treatment of cocoa seed size affects plant height (29.50 cm) the best treatment S1, number of leaves (16.70 strands) best treatment S1, root volume (7.40 ml) best treatment S1, weight wet plant (37.10 grams) best treatment S1.

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