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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 336 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.
Improving Soil Quality with Intercropping System: Corn (Zea (Mays) and Soybeans (Glycine max) Feri Agriani; Sri Oktika Syahputri; Fajar Aga Wandana
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.v8i2.5148

Abstract

The conversion of rubber land to oil palm in the TBM phase has the potential to cause soil degradation due to low organic matter and nutrient availability. low organic matter and increasing risk of erosion on the plant. Not yet producing (TBM). Land conditions are open, without vegetation, which speeds up washing. Nutrients are essential, so a management strategy is needed that maintains soil quality while providing economic benefits to farmers. The intercropping system of corn and soybeans is an important strategy for improving soil quality while increasing economic benefits for oil palm farmers. Study This aim analyze influence system intercropping corn (Zea mays) And soya bean (Glycine max) to change characteristic physique and chemistry land on TBM phase oil palm land resulting from conversion from rubber, and comparing the quality of the soil with the land without intercropping. The study was conducted in the Village of Cape Rambutan, Regency of Kampar, with a purposive sampling design. Sample land taken before and after the implementation of intercropping, with a total of 48 samples analyzed in the laboratory. The parameters observed included soil physical properties (texture, bulk density, porosity, infiltration rate and water-holding capacity). Water level and characteristic soil chemistry (pH, organic carbon, total nitrogen, available phosphorus, CEC, exchangeable bases, and base saturation). Data were analyzed, and the results of the research showed that the application of the corn and soybean intercropping system improved the physical and chemical properties of the soil on oil palm land during the TBM phase, making it a more effective and sustainable land management method. Therefore, this system is recommended to farmers and plantation managers as an alternative to maintain soil quality while increasing the economic value of the land.
Response of Growth and Production of Mustard Greens (Brassica juncea L.) by Administering NPK 16:16:16 Using a Wick Hydroponic System Evi Julianita Harahap; Amitalia Tumanggor; Juldi Saputra; Mawaddah Putri Arisma Siregar; Muhammad Afrillah; Sumeinika Fitria Lizmah; Chairuddin; Yuliatul Muslimah; Hilmina Itawarnemi; Dedi Kurniawan
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.v8i2.5246

Abstract

Wick hydroponics is a simple hydroponic method because it uses a wick to connect the nutrients to the roots of the plant. NPK 16:16:16 is a compound fertilizer that contains balanced nutrients N, P and K, each amounting to 16%. The objective of this study was to determine the response of growth and production of mustard greens (Brassica juncea L.) to NPK 16:16:16 in a wick hydroponic system. The research was conducted at the UF (University Farm) of Teuku Umar University, Meureubo District, West Aceh Regency, in December-January 2024. The study employed a non-factorial Completely Randomized Design (CRD) with 10 concentrations of NPK 16:16:16 fertilizer and 3 replications, yielding a total of 30 experimental units. Each experimental unit consisted of three sample plants grown in a single Styrofoam container, giving a total of 90 sample plants. The NPK 16:16:16 fertilizer concentrations evaluated were 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, and 5.0 g L⁻¹. Analysis of variance data using SPSS version 25 software with the DMRT (Duncan Multiple Range Test) as a further test. The results of the research showed that the provision of NPK 16:16:16 fertilizer had a significant effect on the growth of mustard greens, as indicated by differences in plant height, number of leaves, leaf length and leaf width. Providing NPK 16:16:16 fertilizer resulted in a significant difference in mustard green production, as measured by plant wet weight and plant dry weight. Based on the research findings, the application of NPK 16:16:16 fertilizer was shown to enhance vegetative growth and yield of mustard greens grown in the wick hydroponic system, thereby increasing crop productivity. The application of NPK 16:16:16 fertilizer at a concentration of 0.5 g/L is recommended for mustard green cultivation in a wick hydroponic system as an effective fertilization alternative to improve plant growth and increase harvest yield.
The Effect of Entomopathogenic Fungi Combinations on the Growth and Production of Corn ( Zea mays L.) Indri Yanil Vajri VAJRI; Trizelia; Haliatur Rahma; Yusniwati
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.v8i2.5434

Abstract

Entomopathogenic fungi (CEPs) possess dual potential as biological control agents and endophytes that modulate plant physiological processes. Single applications of CEPs often provide suboptimal protection and growth support, necessitating a synergistic, interspecies combination approach. This study aimed to evaluate the effects of single and combined inoculations of CEPs on the growth, chlorophyll content, and yield components of shelled corn (Zea mays L.). A Randomized Block Design (RBD) with eight treatments and four replications was employed. The treatments included Beauveria bassiana (BBWS), Metarhizium anisopliae (B22C), and Trichoderma asperellum (A116), applied singly or in combination via seed soaking for six hours. Sterile distilled water served as the control. Observed parameters included plant growth, leaf chlorophyll content, and yield components. Data were analyzed using Analysis of Variance (ANOVA), followed by the Least Significant Difference (LSD) test at the 5% significance level. Results indicated that fungal inoculation had no significant effect on corn vegetative growth six weeks after planting. However, the combination of B. bassiana and M. anisopliae produced the highest total chlorophyll content (1,101 μg g⁻¹), whereas single inoculations decreased chlorophyll levels, likely due to carbon costs during the initial phase of endophyte colonization. Importantly, the combination of M. anisopliae and T. asperellum yielded the highest number of kernels per ear, ear weight, and 100-kernel weight. This research advances previous studies by demonstrating that synergistic fungal combinations effectively mitigate early-phase carbon costs, thereby maximizing crop yields compared to single applications. Therefore, the combination of M. anisopliae and T. asperellum is recommended as a biofertilizer formula and biocontrol agent for sustainable corn kernel production.

Page 33 of 34 | Total Record : 336

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