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INDONESIA
Jurnal Ilmu-Ilmu Pertanian Indonesia
Published by Universitas Bengkulu
ISSN : 14110067     EISSN : 26849593     DOI : https://doi.org/10.31186/jipi
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmu-Ilmu Pertanian Indonesia (JIPI) is a scientific journal that publishes research results related to resource issues and agricultural productivity widely, including Agroecotechnology, Plant Breeding, Soil Science, Plant Protection, and Agricultural Ecology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 10 Documents
 1 
Search results for , issue "vol 28 no 1 (2026)" : 10 Documents clear
Uji Konsentrasi Nematoda Entomopatogen Steinernema carpocapsae Weiser Lokal terhadap Hama Penggerek Tongkol Jagung Helicoverpa armigera Hubner di Laboratorium Desita Salbiah; Mutiara Kusuma Wardani
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.19-24

Abstract

[CONCENTRATION OF LOCAL ENTOMOPATHOGENIC NEMATODE Steinernema carpocapsae Weiser AGAINST CORN COB BORER Helicoverpa armigera Hübner IN LABORATORY BIOASSAYS]. Corn (Zea mays L.) ranks among Indonesia's most vital food crops. However, production in Riau Province has declined due to infestations by the corn cob borer (Helicoverpa armigera Hübner), which can damage up to 39.7% of crops. Conventional control relies on synthetic chemical insecticides, which pose persistent risks including mortality of natural enemies, pest resistance, and population resurgence. An eco-friendly alternative involves local entomopathogenic nematodes (EPN), Steinernema carpocapsae Weiser, which induce rapid host mortality (within 24–48 hours) via symbiotic bacteria producing lethal toxins. This study determined the best concentration of S.carpocapsae infectious juveniles (IJ) for H. armigera mortality under laboratory conditions. An experimental approach employed a completely randomized design (CRD) with five concentrations (0, 250, 500, 750, and 1000 IJ/mL distilled water) and four replicates per treatment. Parameters assessed included EPN identification, time to initial mortality, and total mortality. Data were subjected to analysis of variance (ANOVA) followed by DNMRT test at 5% significance. Results revealed that 750 IJ/mL was the most effective concentration, achieving 80% total mortality within 72 hours post-application. These findings support S. carpocapsae at 750 IJ/mL as a viable biocontrol agent for H. armigera in integrated pest management (IPM) programs, warranting field trials to validate efficacy under Riau's agroecological conditions.
PENGARUH PELAPISAN DALAM MEMPERTAHANKAN VIABILITAS BENIH JAMBU BIJI MERAH (PSIDIUM GUAJAVA L.) SELAMA PENYIMPANAN Vanisa Auliya; Maryati Sari; Okti Syah Isyani Permatasari
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.10-18

Abstract

[EFFECT OF SEED COATING ON MAINTAINING VIABILITY OF RED GUAVA (Psidium guajava L.) SEEDS DURING STORAGE]. Guava (Psidium guajava L.) is one of the potential intercropping options for a revegetation programme. Hydrophilic polymer coating and several additional materials are expected to increase the vigor of seeds planted by direct sowing under suboptimal conditions. However, it is necessary to study its effect on seed viability during storage, especially on guava seeds which are classified as intermediate seeds.This study aims to determine the effect of coating on the viability of guava seeds (Psidium guajava L.) during storage. The experiment was arranged in a factorial randomized complete block design (RCBD) with two factors: coating materials (control, alginate, tapioca, alginate + manure pelleting, alginate + vermicompost pelleting, tapioca + manure pelleting, and tapioca + vermicompost pelleting) and storage periods (0, 2, and 4 weeks) in polyethylene bags. The results showed that storage for more than two weeks caused a sharp decrease in germination percentage and vigor index. Coating treatment with alginate for two weeks is more effective in maintaining water content, germination percentage, and seed vigor. Seed coating with alginate is recommended method for extending shelf life while maintaining the physiological quality of guava seeds. Pelleting using alginate and vermicomposting were not significantly different from coating treatment with alginate in the same parameters, so both treatments can be recommended as neede
Implementasi Pemupukan Berdasarkan Analisis Sensor Tanah berbasis IoT untuk Optimalisasi Pertumbuhan Tanaman Jagung (Zea mays L.) Moh Hasbi Ash Shidiqi; Eka Nurmala Sari; Aldy Bahaduri Indraloka; Bagus Eka Mahendra; Zuyinatul Magfiroh
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.1-9

Abstract

[OPTIMIZING CORN (Zea mays L.) GROWTH THROUGH FERTILIZATION BASED ON IOT SOIL SENSOR ANALYSIS. Corn (Zea mays L.) plays an important role in Indonesia's agricultural sector as a source of food, animal feed, and industrial raw materials. However, the main challenge in cultivation is improper fertilization, which can reduce yields and damage the environment. Efficient and sustainable fertilization is necessary to increase productivity. Internet of Things (IoT)-based soil sensor technology provides a solution by providing accurate data on soil conditions that help with fertilization efficiency. The purpose of this study was to examine the effect of fertilization variations adjusted to the results of IoT-based soil sensor analysis on corn plant growth. The study was conducted in Labanasem Village, Banyuwangi Regency, from July to September 2025, using a non-factorial randomized block design (RBD) with four treatments, namely conventional, chemical, balanced, and organic fertilization, repeated six times. Data were collected using IoT soil sensors to analyze pH, moisture, temperature, and nutrients. Fertilization was carried out at 20, 35, and 55 days after planting for conventional and chemical fertilizers, while balanced and organic fertilizers followed the dosage recommendations from the IoT system. The results showed that balanced fertilization did not differ significantly from conventional and chemical fertilization in terms of plant growth parameters, including plant height, number of leaves, stem diameter, leaf area, leaf area index, and flowering age (p > 0.05). Organic fertilization showed significantly different results (p < 0.05), but balanced fertilization was more efficient in reducing input costs and supporting agricultural sustainability compared to organic fertilization, as well as supporting agricultural sustainability. IoT-based soil sensor technology can improve fertilization precision and support fertilizer use efficiency.based soil sensors and balanced fertilization is recommended to increase corn production efficiently and sustainably.
DIVERSITY MACROFAUNA AND CHEMICALS OF SOIL INFLUENCED BY TYPES OF SHADE PLANT IN ARABICA COFFEE PLANTATION Halimatus Syahdia Hasibuan; Dewi Rezki; Nadiya Pirhat; Muhammad Parikesit Wisnubroto
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.66-74

Abstract

Soil macrofauna are an essential biotic component that plays a significant role in maintaining soil ecosystem balance. They are also among the most sensitive indicators of land-use change and can therefore be utilized as markers or predictors of soil quality. The diversity and abundance of soil macrofauna are generally influenced by environmental conditions, particularly vegetation covering or shading above the soil surface. Coffee cultivation in Solok Radjo, Kabupaten Solok, Sumatra Barat, is typically carried out under shade provided by various tree species. This study aimed to examine the diversity, abundance, and composition of soil macrofauna within coffee cultivation systems under different types of shade in Solok Radjo. The research was descriptive in nature and employed an exploratory method, with sampling conducted directly in the field using manual hand sorting. The shade conditions observed included unshaded, shade Paraserianthes falcataria, shade Eucalyptus sp., and shade Leucaena leucocephala. The findings revealed two phyla of soil macrofauna comprising 4 classes, 8 orders and 9 families. Soil macrofauna in coffee plantations with shades of Falcataria moluccana and Leucaena leucocephala trees had higher family counts, abundance, diversity index, and richness index compared to Eucalyptus sp. trees and unshaded. The evenness index was even across all shade types, with no dominant species. The organic carbon content was highest in the shaded areas of Falcataria moluccana trees. Agroforestry systems of coffee plants with shaded areas of Falcataria moluccana and Leucaena leucocephala trees can be implemented to stabilize microclimate conditions and increase litter volume, macrofauna biodiversity, and soil fertility.
INOVASI PENGENDALIAN LALAT BUAH PADA PENGEMBANGAN AGROWISATA JAMBU KRISTAL DI LAHAN GAMBUT Melhanah; Wijantri Kusumadati; Rahmawati Budi Mulyani; Adrianson Agus Djaya; Riky Nur Rohman; Prida
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.50-57

Abstract

[FRUIT FLY CONTROL INNOVATION FOR CRYSTAL GUAVA AGROTOURISM DEVELOPMENT ON PEATLANDS]. Sebangau District, Palangka Raya City, is developing agrotourism for picking crystal guava  (Psidium guajava L. var. ‘Crystal’) on peatlands, but attacks by fruit flies of the genus Bactrocera spp. have caused crop losses of up to 40-60% globally. This study aims to evaluate the effectiveness of combined attractants to attract male and female fruit flies and measure their impact on the quality of crystal guava fruit. The study was conducted in two stages on four farmers' fields (2024). Stage I: collection of fruit flies using Steiner traps with three attractants: methyl eugenol (ME), processed cocoa waste with preservatives (PCWWP), and mango extract (MGE), each with 20 replicates/location, 4 weeks. Stage II: fruit quality testing (vitamin C content, reducible sugar, hardness, crispness, organoleptic test of 20 panelists) from the best trap-protected plants. The results showed that 31,759 fruit flies were trapped, dominated by Bactrocera carambolae (98.53%), B. umbrosa (1.34%), and B. cucurbitae (0.13%). The ME+PCWWP combination was the most effective (p<0.01), capturing 99.84% of the male population including 0.16% of the females. Fruit from this treatment had the highest vitamin C (153.6 mg/100g), reducible sugar (9.9°Brix), best organoleptic preferences for hardness (5.2), crispness (4.8), taste (6.1), and overall (scale 5.9/6). Female B. cucurbitae were more attracted to ME+MGE (ratio 1:5). The combination of ME+OLK is recommended for sustainable fruit fly control in peatland crystal guava agrotourism, improving fruit quality and tourist attraction.
PENGARUH EKSTRAK LIMBAH UDANG, EKSTRAK DAUN LAMTORO, DAN LARUTAN ECO-ENZYME DENGAN NUTRISI AB MIX TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SAYURAN SAWI (Brassica juncea L). SECARA HIDROPONIK NFT. M. Ridho Arisman; Darwin Pangaribuan; R.A Diana Widyastuti; Soesiladi Esti Widodo
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.42-49

Abstract

[GROWTH AND YIELD RESPONSE OF MUSTARD GREENS (Brassica juncea L.) TO COMBINED APPLICATION OF CHICKEN MANURE EXTRACT, RABBIT URINE EXTRACT, AND AB-MIX NUTRIENT SOLUTION IN AN NFT HYDROPONIC SYSTEM]. Hydroponic cultivation offers several advantages over conventional agricultural practices, including the production of clean produce, accelerated plant growth, improved crop quality, and increased yield. Moreover, hydroponic systems provide a cost-effective approach for vegetable production with distinct agronomic benefits. This study aimed to evaluate alternative nutrient formulations to partially replace AB-Mix fertilizer using chicken manure extract and rabbit urine extract. The experiment was conducted in a field garden located in Labuhan Ratu District, Bandar Lampung City, from June to July 2024. A Completely Randomized Design (CRD) was employed, consisting of four treatments with six replications, involving a total of 144 mustard green plants. The treatments included: (1) 75% AB Mix + 25% chicken manure extract; (2) 75% AB Mix + 15% chicken manure extract + 10% rabbit urine extract; (3) 50% AB Mix + 30% chicken manure extract + 20% rabbit urine extract; and (4) control (100% AB Mix). Data were subjected to a homogeneity test using Bartlett’s test. Upon meeting the assumptions, analysis of variance (ANOVA) was performed, followed by mean separation using the Least Significant Difference (LSD) test at a 5% significance level. The results indicated that the application of 75% AB Mix combined with 25% chicken manure extract, as well as 75% AB Mix combined with 15% chicken manure extract and 10% rabbit urine extract, showed no significant difference compared to the control (100% AB Mix). In contrast, the treatment consisting of 50% AB Mix combined with 30% chicken manure extract and 20% rabbit urine extract differed significantly from the control. These findings suggest that partial substitution of inorganic AB Mix fertilizer with organic nutrient sources, such as chicken manure extract and rabbit urine extract, has the potential to reduce dependence on inorganic fertilizers in hydroponic systems.
Respons Pertumbuhan dan Produktivitas Jagung BISI 18 terhadap Aplikasi Paclobutrazol dan Pupuk Nitrogen Umi Alfia; Djarwatiningsih Pongki Soedjarwo; Agus Sulistyono
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.25-34

Abstract

[GROWTH AND YIELD OF BISI 18 MAIZE AS AFFECTED BY PACLOBUTRAZOL APPLICATION AND NITROGEN FERTILIZATION]. Maize (Zea mays L.) is a vital commodity in Indonesia that requires higher productivity. Tall-growing hybrid maize is prone to lodging; therefore, paclobutrazol can be used to suppress vegetative growth, while nitrogen supports plant growth and yield. This study aimed to determine the optimal paclobutrazol concentration and nitrogen fertilizer rate for the growth and yield of BISI 18 maize. The experiment was arranged in a split-plot design with two factors: paclobutrazol concentrations (0, 1250, 1500, and 1750 ppm) and nitrogen fertilizer rates (350, 400, 450, and 500 kg/ha). Paclobutrazol was applied as a foliar spray at 18 and 37 days after planting (DAP), while nitrogen fertilizer was applied by dibbling at 14, 35, and 49 DAP. Data were analyzed using analysis of variance (ANOVA) followed by the Honestly Significant Difference (HSD) test at the 5% level. The results showed a significant interaction between paclobutrazol concentration and nitrogen rate, with different optimal combinations for each parameter. The combination of 1750 ppm paclobutrazol and 350 kg/ha nitrogen produced the shortest plants, while 1750 ppm paclobutrazol with 450 kg/ha nitrogen resulted in the highest number of leaves. The earliest tasseling occurred with 1250 ppm paclobutrazol and 500 kg/ha nitrogen. A nitrogen rate of 450 kg/ha produced the highest grain weight per plant and per plot, increasing dry grain yield to 10.69 t/ha. Increasing paclobutrazol concentration suppressed plant height; however, excessive concentrations and nitrogen rates may inhibit growth. Paclobutrazol concentrations of 1250–1500 ppm combined with 450 kg/ha nitrogen were sufficient to achieve optimal growth and yield.
EFFECTS OF Melastoma malabathricum COMPOST APPLICATION ON VEGETATIVE GROWTH OF Pennisetum purpureum cv. Thailand AND ITS SUITABILITY AS RUMINANT FEED Naisya Zahratul Jannah; Neli Definiati; Wismalinda Rita; Lezita Malianti
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.35-41

Abstract

Feed availability is an important factor in increasing livestock productivity, especially in areas with limited land and low soil fertility. Pakchong grass (Pennisetum purpureum cv. Thailand) is a high-quality forage with good growth potential, but its optimal production requires proper soil nutrient management. This study aims to evaluate the effect of compost application derived from Melastoma malabathricum L. agricultural waste on the growth of Pakchong grass. The study was conducted from July 2024 to April 2025 at the UPTD-PPT Livestock and Animal Health Service in Bengkulu Province, using a randomized block design with four compost dose levels, namely 0 (control), 10, 20, and 30 tons/ha, each with three replicates. The variables observed included plant height, leaf width, stem diameter, and number of tillers measured at the first and second harvests. The data were analyzed using analysis of variance (ANOVA) followed by Duncan's Multiple Range Test. The results showed that the application of Melastoma malabathricum L. compost at all doses had no significant effect (P>0.05) on all growth variables of Pakchong grass at both harvest times. However, all variables increased numerically from the first to the second harvest, especially at higher compost doses. This indicates that Melastoma malabathricum L. compost plays a role in improving soil conditions and supporting the vegetative growth of Pakchong grass, although its effect is gradual and not yet significant in a relatively short observation period. Therefore, this compost has the potential to be used as an alternative for long-term sustainable fertilization in environmentally friendly forage production systems.
KEMAMPUAN DEGRADASI RESIDU FUNGISIDA MANKOZEB OLEH Trichoderma harzianum DAN Trichoderma viride Risya Rosyida; Suryana; Indah Sri Lestari; Riska Sukmawati
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.58-65

Abstract

[THE POTENTIAL OF Trichoderma harzianum AND Trichoderma viride AS BIODEGRADATION AGENTS FOR FUNGICIDE RESIDUES CONTAINING THE ACTIVE INGREDIENT MANCOZEB]. Repeated use of fungicides containing the active ingredient mancozeb has the potential to leave residues in agricultural environments and suppress the activity of non-target soil microorganisms. This study aimed to assess the potential and determine the differences between the fungi Trichoderma viride and Trichoderma harzianum in degrading fungicides containing the active ingredient mancozeb in vitro. The study was conducted at the Plant Pathology Laboratory and the Pesticide Toxicology Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture, Brawijaya University, from May 13 to October 30, 2025. The study employed an experimental design using a completely randomized design. Isolates of T. harzianum and T. viride were purified on PDA medium,identified macroscopically and microscopically, and then propagated on PDB medium. The test was conducted by growing the isolates on PDB medium containing mancozeb at concentrations of 0; 0.5; 1; 1.5; and 2 g/L for 10 days. The parameters observed included Trichoderma biomass and the colony diameter of Colletotrichum gloeosporioides in the bioassay as indicators of residue toxicity. The data were analyzed using ANOVA, followed by a 5% DMRT. The results showed that increasing mancozeb concentration reduced the biomass of both fungi but did not completely inhibit their growth. T. viride produced 0.40 g of biomass in the control and 0.21 g at 2 g/L, while T. harzianum produced 0.48 g in the control and 0.23 g at 2 g/L. The bioassay test showed an increase in the diameter of C. gloeosporioides on media treated with Trichoderma compared to those without Trichoderma. The highest difference in diameter occurred at a concentration of 2 g/L, namely 42.5% for T. viride and 43.5% for T. harzianum. Thus, both Trichoderma species are tolerant to mancozeb and have the potential to reduce its residual toxicity, with a tendency for higher efficacy in T. harzianum under limited in vitro testing conditions.
RESPONS PERTUMBUHAN DAN HASIL BAWANG MERAH (Allium ascalonicum L.) TERHADAP PEMBERIAN PUPUK KALIUM DAN PUPUK MAGNESIUM Muhammad Haikal Avesena; Putra Utama; Julio Eiffelt Rossafelt Rumbiak; Abdul Hasyim Sodiq
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 28 No 1 (2026)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.28.1.75-82

Abstract

Shallots are an economically important horticultural crop widely consumed by Indonesian consumers, and the increasing demand for shallots indicates that this commodity has strong potential for sustainable development. The production potential of shallots can be enhanced through the application of potassium and magnesium fertilizers. This study aimed to increase shallot production through the application of potassium and magnesium fertilizers at appropriate dosage levels. This study was a factorial experiment arranged in a Randomized Block Design (RBD). The first factor was the dosage of potassium fertilizer, consisting of four levels: 0, 75, 150, and 225 kg/ha. The second factor was the dosage of magnesium fertilizer, consisting of four levels: 0, 125, 250, and 375 kg/ha. Each treatment combination was replicated three times, resulting in a total of 48 experimental units. The results of the study showed that potassium fertilizer treatment of 150 kg/ha had a significant effect on plant height (44.1 cm), plant weight (73.7 g), bulb diameter (2.52 cm), fresh bulb weight (38.3 g), and dry bulb weight (27.5 g). Meanwhile, magnesium fertilizer treatment of 250 kg/ha had a significant effect on plant height (46.2 cm), plant weight (83 g), bulb diameter (2.61 cm), bulb length (3.76 cm), fresh bulb weight (44.3 g), and dry bulb weight (31.6 g). The interaction between potassium fertilizer at 75 kg/ha and magnesium fertilizer at 375 kg/ha showed a significant effect on the number of leaves (23.7 leaves), number of tillers per clump (5.7 tillers), and number of bulbs (7 bulbs). These findings suggest that the combined application of potassium at 150 kg/ha and magnesium at 250 kg/ha is recommended as an effective fertilization strategy to enhance shallot growth and yield.

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