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Pebra Heriansyah
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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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Biodiversity Study on Various Land Uses in Jatiarjo Village, Pasuruan Regency Muhammad Ramdhan Kalandoro Wardoyo; Bakti Wisnu Widjajani; Fitri Wijayanti
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.v8i2.5118

Abstract

Biological diversity is part of the ecological chain within the environment or ecosystem. The interrelationship among all living organisms, including microorganisms, flora, and fauna, cannot be overlooked. Biological diversity is often used as an indicator of ecosystem health. Biodiversity can be measured using the biological diversity index introduced by Shannon and Wiener, which serves as a reference for evaluating diversity levels. This research aims to examine existing biological diversity. The study uses the Shannon–Wiener method, which is commonly used to measure species diversity within communities across various land-use types, including Garden Mix 1, Garden Mix 2, fields, and gardens. Each land-use type possesses different vegetation diversity characteristics. Garden Mix 1 combines woody plants and horticultural crops, whereas Garden Mix 2 features a mix of horticultural plants and shrubs. The results of this research may serve as a recommendation and as a foundation for further sustainable studies, such as carbon stock research and biodiversity assessments.
The Effect of Interaction of Microbially Immobilized Biochar and Salinity Stress on Soil Chemical Properties (pH, EC, C-organic, and CEC) in Red Spinach (Amaranthus tricolor L.) Cultivation Nofia Wahyu Puspita; Rossyda Priyadarshini; Fitri Wijayanti
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.v8i2.5153

Abstract

Soil salinity reduces nutrient availability and inhibits plant growth. While red spinach (Amaranthus tricolor L.) exhibits tolerance to suboptimal conditions, its growth declines significantly under high salinity stress. This study evaluated the efficacy of microbially immobilized biochar in ameliorating the chemical properties of saline-stressed soil and enhancing red spinach growth. The experiment employed a Completely Randomized Design (CRD) with two factors: biochar dose (0, 15, 30, and 45 t ha⁻¹) and NaCl salinity levels (0, 4, 6, and 8 mS cm⁻¹), with three replications totaling 48 experimental units. Soil parameters measured included pH, electrical conductivity (EC), organic carbon (C), and cation exchange capacity (CEC) at 0 and 28 days after planting (DAP), while fresh plant weight was recorded at 28 DAP. Data were analyzed using ANOVA followed by a 5% Least Significant Difference (LSD) test. Results indicated that biochar application significantly influenced soil pH and CEC. The 30 t ha⁻¹ treatment yielded the highest pH (7.31) at 28 DAP, whereas the 45 t ha⁻¹ treatment achieved the maximum CEC (61.84 cmol kg⁻¹). NaCl stress significantly increased soil EC from 0.93 to 8.69 mS cm⁻¹ at the highest dose, while organic carbon remained unaffected by either treatment. Although the 15 t ha⁻¹ dose was optimal for pH improvement and the 45 t ha⁻¹ dose for CEC enhancement, the 45 t ha⁻¹ treatment overall proved most effective in improving the chemical properties of saline soil and supporting red spinach growth, maintaining stable pH, EC, CEC, and organic carbon values through 28 DAP.
The Effect of Shade from Two-Year-Old Oil Palms (Elaeis guineensis Jacq) on the Quality of Chili Pepper Seeds (Capsicum frutescens L.) Darmawansyah; Muhamad Achmad Chozin; Edi Santosa; Arya Widura
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.v8i2.5308

Abstract

Chili pepper (Capsicum frutescens L.) is a seasonal crop with high economic value and is widely cultivated in both highland and lowland areas of Indonesia. As an important horticultural commodity and a staple ingredient in Indonesian cuisine, improving chili productivity requires rapid, accurate methods for seed quality assessment. The physiological quality of chili pepper seeds plays a crucial role in germination success and seedling establishment. Therefore, information regarding seed quality variation among genotypes is essential for selecting superior seed sources. This study aimed to evaluate the seed quality of five Capsicum frutescens genotypes based on viability, vigor, and membrane integrity parameters. The experiment was arranged in a randomized complete block design with four replications, using genotype as the treatment factor. Observations included germination percentage (GP), maximum growth potential (MGP), radicle emergence (RE), vigor index (VI), growth rate (GR), growth synchrony (GS), normal seedling dry weight (NSDW), seedling growth rate (SGR), electrical conductivity (EC), and tetrazolium viability (TZ). Analysis of variance revealed that genotype had a highly significant effect on all observed parameters at the 1% level of significance (α = 0.01). Genotype G3 exhibited the highest performance in key viability and vigor parameters, with GP of 71.50%, MGP of 77.50%, RE of 54.50%, VI of 55.00%, GR of 54.70% etmal⁻¹, GS of 60.50%, NSDW of 0.284 g, SGR of 0.00795 g KN⁻¹, and TZ viability of 88%, accompanied by the lowest EC value (17.792 µS cm⁻¹). In contrast, genotypes G1 and G4 showed the lowest values across most parameters, whereas G2 demonstrated moderate performance with relatively high vigor. These findings indicate that the physiological quality of cayenne pepper seeds varies among genotypes and is strongly influenced by genetic factors. This study provides valuable insights into seed quality under shaded conditions and contributes to the development of strategies for improving chili growth and adaptability in shaded environments.
Utilization of Aquaculture Effluent as an Organic Fertilizer to Improve Soil Fertility and Cassava (Manihot esculenta Crantz) Yield Wira Hadianto; Nana Ariska; Taufiq; Maulidil Fajri; Nhyra Kamala Putri; Abdul Latif
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.v8i2.5330

Abstract

This study evaluated the potential of aquaculture effluent as a liquid organic fertilizer to enhance soil fertility and cassava (Manihot esculenta Crantz) productivity. Conducted in Blang Berandang Village, West Aceh Regency, the experiment employed a Randomized Complete Block Design (RCBD) with six treatments: a control (0% effluent), inorganic fertilizer, and four effluent concentrations (25%, 50%, 75%, and 100%), each replicated four times. Measured variables included soil chemical properties (pH, organic carbon, total nitrogen, available phosphorus, and exchangeable potassium), plant growth parameters, and tuber yield. Results indicated that the aquaculture effluent was rich in nutrients, containing 35.2 mg L⁻¹ nitrogen, 12.6 mg L⁻¹ P₂O₅, and 22.4 mg L⁻¹ K₂O, with a C/N ratio of 3.6. Effluent application significantly improved soil physicochemical properties, raising soil pH from 5.5 to 6.9 and organic carbon from 1.25% to 2.45%. Furthermore, total nitrogen, available phosphorus, and exchangeable potassium levels increased in proportion to effluent concentration. The 75% effluent treatment yielded the optimal results, producing a plant height of 135.4 cm and a tuber weight of 4.12 kg per plant—a 90% increase compared to the control. These findings demonstrate that aquaculture effluent significantly enhances soil fertility and cassava productivity relative to untreated controls. Consequently, its utilization offers a sustainable, eco-friendly strategy for integrated aquaculture–agriculture systems, contributing to increased crop production while mitigating environmental impacts associated with aquaculture waste.
Morphometric Comparison Horned Beetle (Oryctes rhinoceros L.) from Location SEAT Ungaran, Banyumas, and Pangandaran Achmad Himawan; Agus Prijono; Refdika Farid Pradana
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.v8i2.5438

Abstract

The rhinoceros beetle (Oryctes rhinoceros L.) is a major pest of coconut and oil palm in Indonesia. Its attacks can cause up to 25% damage to young palms and reduce fresh fruit bunch production by up to 69%. This study aimed to compare the body morphometrics of male and female O. rhinoceros collected from SEAT Ungaran (oil palm), Banyumas (coconut), and Pangandaran (coconut) in Java. Adult beetles were obtained using pheromone traps (SEAT Ungaran) and manual collection (Banyumas and Pangandaran), then measured for 20 external characters, including body, pronotum, elytra, antennae, scutellum, and leg segments. Morphometric data were analyzed using t-tests to compare sexes within locations and analysis of variance, followed by Duncan's Multiple Range Test (DMRT) at a 5% significance level to compare populations among locations. Several characters, particularly horn length, pronotum size, and hind leg segments, differed significantly between males and females at each site. In addition, body length, pronotum width, elytra length, and hind leg tibia length showed significant differences among populations from SEAT Ungaran, Banyumas, and Pangandaran. These characters are informative for distinguishing local populations of O. rhinoceros and provide baseline morphometric data to support location-specific management strategies for this pest.
Soil cover vegetation analysis on soil physical properties at PT Cibaliung Tunggal Plantation Cibaliung I Rokan Hilir regency Riau province Muhammad Nurkolis Baru Bara; Ingrid Ovie Yosephine
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.v8i2.5573

Abstract

Ground cover vegetation plays a crucial role in maintaining soil quality and preventing degradation by altering soil physical properties. This study aimed to analyze differences in soil physical properties, particularly bulk density, porosity, and water content, in areas covered with different types of ground cover vegetation at PT Cibaliung Tunggal Plantation, Kebun Cibaliung I, Riau. The method used was a field survey with purposive sampling of soil at two depths, namely 0–10 cm and 10–20 cm. The observation sites included three vegetation conditions: fern (Nephrolepis biserrata), crocodile-nest grass (Ottochloa nodosa), and bare land. Laboratory analysis indicated that vegetation significantly improved soil physical properties. The lowest bulk density values were found in areas with Ottochloa nodosa vegetation (0.35–0.78 g/cm³), whereas the highest values were found in areas without vegetation (1.35–1.45 g/cm³). All locations exhibited “very good” porosity criteria (>20%), with the highest values in Ottochloa nodosa areas reaching 88–95%. In terms of water retention, vegetated areas demonstrated greater capacity than bare areas; the highest water content was recorded in O. nodosa areas (81–202%), whereas bare areas exhibited water content ranging from 18–21%. This study concluded that using ground cover vegetation can significantly reduce soil density and increase porosity and water storage capacity, thereby supporting sustainable land productivity, especially during the oil palm replanting period. These findings highlight Ottochloa nodosa's superior performance in optimizing soil moisture and structure, suggesting that plantation managers should prioritize its conservation to enhance long-term soil sustainability.
Effectiveness Test of Botanical Pesticide Formulation of Combination of Lime Leaves and Lemongrass Against Aphids (Aphis spp.) on Katokkon Chili Plants in-Vitro Driyunitha; Yulius Pakiding; Sion Oktafianus
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.v8i2.5695

Abstract

Aphids (Aphis spp.) are one of the main pests that damage Katokkon chilies by sucking plant sap and transmitting viruses. Excessive use of chemical pesticides can lead to resistance and environmental problems; therefore, environmentally friendly alternatives are needed. This study aims to determine the effectiveness of a botanical pesticide formulation derived from lime (Citrus spp.) leaves and citronella (Cymbopogon nardus) against Aphis spp. Mortality in vitro. This experiment used a completely randomized design with 7 treatment levels (R1-R5, KP, KN) and 5 replications. Observed parameters included physicochemical stability of the formulation (pH, density and viscosity), pest mortality from 4-72 hours and toxicity based on probit analysis (LT50). Results showed that formulations were stable in storage for 14 days, with the smallest changes in pH, density and viscosity. The highest mortality was found in R4 (83.33%), followed by R3 (70.83%) and R2 (62.50%), while solvent control reached only 2.50%. Probit analysis revealed that R4 gave the shortest LT50 value (8.70 hours), followed by R3 (24.93 hours) and R2 (35.61 hours). Based on these results, a combination of lime and citronella, with a ratio of 25%:75% (R4), is the most effective formulation as a botanical pesticide against Aphis spp.

Page 33 of 33 | Total Record : 327

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