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Jurnal Penelitian Pertanian Terapan
Published by Politeknik Negeri Lampung
ISSN : 14105020     EISSN : 24071781     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Pertanian Terapan is a peer-reviewed journal that publishes scientific articles from agricultural disciplines covering Plantation crops, Food crops and horticulture, food Technology, Agriculture biology and agribusiness. Articles published in the Journal of Applied Agriculture may be research results (original) and scientific review articles (review). Applied Journal of Agriculture is published by Research Unit and Community Service of Lampung State Polytechnic Society 3 edition one year, that is January, May, and September. JPPT was first published in January 2000. JPPT published a print version in 2007, then started the online version or Open Journal System (OJS) in 2014. Early online versions of JPPT or OJS editing have not yet been fully implemented online management and are beginning to make improvements Web Journal view and journal cover and OJS governance management on Volume 2 No. 2 of 2017. JPPT has been indexed on Google Scholar and Garuda IPI by 2015, and by 2017 it has indexed SINTA and registered DOAJ and Crossref in the same year. We accept submissions from all over Indonesia. All submitted articles will not be published elsewhere, original and not considered for other publications.
Arjuna Subject : -
Articles 789 Documents
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PENGARUH KONSENTRASI BAKTERI FOTOSINTETIK YANG DIAPLIKASIKAN PADA FASE INISIASI BUNGA TERHADAP PRODUKSI BENIH KACANG MERAH INERIE Yosefina Lewar; Ali Hasan; Stormy Vertygo; Maria Klara Salli
Jurnal Penelitian Pertanian Terapan Vol 26 No 2 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i2.4816

Abstract

Photosynthetic bacteria are used as autotrophic bacteria capable of carrying out photosynthesis independently. They also serve as atmospheric nitrogen-fixing microorganisms that contribute to the nitrogen supply for plants and enable more efficient utilization of inorganic nitrogen fertilizers, thereby enhancing nutrient uptake by plants. The effectiveness of photosynthetic bacteria is also influenced by their concentration. An appropriate concentration of photosynthetic bacteria affects plant growth and yield. The objective of this study was to determine the optimal concentration of photosynthetic bacteria to improve nutrient availability and uptake in order to increase the seed yield of Inerie kidney bean variety grown in lowland areas. The study was designed using a Randomized Block Design with treatments consisting of different concentrations of photosynthetic bacteria (K), namely K1 (10 mL L⁻¹), K2 (15 mL L⁻¹), K3 (20 mL L⁻¹), K4 (25 mL L⁻¹), K5 (30 mL L⁻¹), and K6 (35 mL L⁻¹). The results showed that the concentration of 15 mL L⁻¹ was the most effective, producing 125.19 seeds per plant, a seed weight of 40.89 g per plant, and a total seed weight of 642.54 g per 3 m² plot. Keywords: Photosynthetic Bacteria, Inerie, Concentration, Inerie, Kidney Bean
Pengaruh Pemberian Rodentisida Erkatril Dalam Pengendalian Hama Tikus (Rattus tiomanicus) Pada Kelapa Sawit (Elaeis guineensis JACQ.) Di PTPN IV Regional 1 Kebun Rantauprapat Loudgren Three Sitorus; Badrul Ainy Dalimunthe; Yusmaidar Sepriani; Ika Ayu Putri Septyani
Jurnal Penelitian Pertanian Terapan Vol 26 No 1 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i1.4829

Abstract

Oil palm (Elaeis guineensis Jacq.) is one of Indonesia's strategic plantation commodities that contributes significantly to the national economy, especially in North Sumatra. The high productivity of oil palm plants is greatly influenced by cultivation management and pest control factors. One of the main pests that often causes significant losses in oil palm plantations is rats, which attack fresh fruit bunches (FFB) and have the potential to reduce both the quantity and quality of the harvest. Therefore, an effective, efficient, and sustainable rat pest control strategy is needed. This study aims to determine the effectiveness of using the rodenticide Erkatril in suppressing the rat population and reducing the level of attacks on oil palm fruit, so that it can be used as a basis for consideration in rat pest management in oil palm plantations. The study was conducted using a completely randomized design (CRD) consisting of three treatments of Erkatril rodenticide application frequency and five replicates. The parameters observed included rat population, percentage of fruit damage, rat mortality rate, and fresh fruit bunch productivity. The observation data were analyzed using Analysis of Variance (ANOVA) to determine the effect of treatment on the parameters observed. If the analysis results showed significant differences, the testing was continued with the Least Significant Difference (LSD) test at a 5% confidence level. The results showed that the frequency of Erkatril rodenticide application had a very significant effect on reducing the rat population, fruit attack rate, rat mortality, and oil palm fresh fruit bunch productivity. Treatment E3, which involved three applications of rodenticide, was the best treatment because it reduced the rat population to the lowest level, significantly reduced the percentage of fruit attacks, increased rat mortality, and produced the highest fresh fruit bunch productivity compared to other treatments. These findings indicate that the use of Erkatril rodenticide with the appropriate application frequency can be an effective rat pest control strategy to increase oil palm productivity.
Evaluasi Agronomis Pertumbuhan dan Ketahanan Hidup Bibit Semangka (Citrullus lanatus) pada Vertisol dengan Aplikasi Berbagai Pupuk Kandang Marvin Jecson Pandu; Marlin Marhaeni Pe; Melinda. R.S. Moata; Hidayah Usman
Jurnal Penelitian Pertanian Terapan Vol 26 No 2 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i2.4836

Abstract

This study aimed to evaluate the effects of different types of organic manure on the growth and survival of watermelon (Citrullus lanatus) seedlings cultivated in Vertisol media. The treatments consisted of cattle, goat, and chicken manure, along with a non-fertilized control. Vegetative growth parameters observed included plant height, leaf number, and leaf area, while seedling survival was analyzed using the Kaplan–Meier method and log-rank test. The results showed that manure type significantly affected all vegetative growth parameters. Cattle manure produced the highest vegetative growth performance, followed by the control and goat manure treatments, whereas chicken manure resulted in the lowest growth response. The highest survival rate was observed in the cattle manure treatment (100%), followed by the control (93.75%) and goat manure (87.50%), while chicken manure showed the lowest survival rate (18.75%). Kaplan–Meier curves revealed that the chicken manure treatment experienced the most rapid decline in survival probability from the early observation period. The log-rank test demonstrated that differences among survival curves were statistically significant (log-rank χ² = 41.98; df = 3; p < 0.001), indicating that organic manure type significantly influenced seedling survival during the early nursery stage. Overall, the findings demonstrate that under Vertisol conditions, cattle manure provided the best combination of vegetative growth and survival stability of watermelon seedlings compared with the other treatments.
Dinamika Populasi dan Struktur Komunitas Serangga Parasitoid Pada Berbagai Fase Pertumbuhan Padi Sawah Di Gampong Gintong, Kecamatan Grong-Grong, Kabupaten Pidie Nanda Fatmala; Aidil Amar; Diah Fridayati; Tengku Dhean; Sayed Ahmad Zaki Yamani
Jurnal Penelitian Pertanian Terapan Vol 26 No 2 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i2.4883

Abstract

Parasitoid insects play a crucial role in the wetland rice ecosystem as natural enemies of key pests. This study aimed to assess the population dynamics and community structure of parasitoid insects across four rice growth phases in Gampong Gintong, Grong-Grong District, Pidie Regency. Sampling was conducted at 25 observation units (5 transects × 5 points) using yellow sticky traps, sweep nets, and aspirators at 14, 28, 49, and 70 Days After Transplanting (DAT) with three replications. A total of 28 individuals from six parasitoid families of two orders were recorded: Braconidae, Ichneumonidae, Chalcididae, and Eulophidae (Hymenoptera), and Pipunculidae and Tachinidae (Diptera). Population density was highest at the Late Vegetative phase (28 DAT) at 3.00 individuals/plot and lowest at the Grain-Filling phase (70 DAT) at 1.67 individuals/plot. One-way ANOVA showed no significant overall difference among phases (F = 3.556; p = 0.067), although Tukey HSD identified a significant difference between the Late Vegetative and Grain-Filling phases. Shannon-Wiener index (H’) ranged from 0.673 to 1.277, Pielou’s evenness (E) from 0.870 to 0.971, and Simpson’s dominance (C) from 0.190 to 0.400. Air temperature increased from 27.9°C at the Late Vegetative phase to 30.1°C at Grain-Filling, showing a strong negative correlation with parasitoid abundance (r = −0.98; p = 0.021), while relative humidity showed a strong positive correlation (r = +0.96; p = 0.038). Braconidae (42.86%) and Ichneumonidae (39.29%) were present across all growth phases and showed potential as biological control agents in integrated pest management programs in Pidie Regency.
Pengaruh Cemaran Mikroplastik Polipropilena (PP) Terhadap Pertumbuhan 2 Varietas Jagung Lokal Madura Marchel Putra Garfansa; Agus Hadiyanto; Yenni Arista Cipta Ekalaturrahmah; Iswahyudi Iswahyudi
Jurnal Penelitian Pertanian Terapan Vol 26 No 2 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i2.4888

Abstract

This study aimed to compare the growth responses of two local Madurese maize varieties, Talangu and Elos, grown in media contaminated with polypropylene (PP) microplastics, and to identify the variety that showed better adaptive capacity during the early growth stage. The experiment was conducted using a 2 × 2 factorial completely randomized design with three replications. The tested factors consisted of maize variety, namely Talangu and Elos, and growth media condition, namely without PP contamination and with PP contamination. Observations were carried out at 5, 10, and 15 days after sowing on plant height, number of leaves, root length, and plant fresh weight. The results showed that polypropylene microplastic contamination affected the growth responses of both varieties, although the magnitude of the effect varied depending on the observed parameter. In general, the Talangu variety exhibited better growth performance in plant height, root length, shoot fresh weight, and root fresh weight, whereas the Elos variety was relatively better at maintaining leaf number under contaminated conditions. These findings indicate that plant responses to polypropylene contamination are parameter-specific and influenced by varietal differences. Based on the overall early growth responses, the Talangu variety can be considered more tolerant to polypropylene microplastic contamination than the Elos variety.
Pengaruh Sukrosa dan Ekstrak Bawang Merah Terhadap Umur Simpan Bunga Krisan Potong Melkianus Bulan; Ali Hasan; Eko H.A. Juwaningsih
Jurnal Penelitian Pertanian Terapan Vol 25 No 2 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i2.4900

Abstract

Cut chrysanthemum flowers (Chrysanthemum indicum L.) were reported to have high economic value but faced a major constraint in the form of a short shelf life (vase life) of only 2-3 days postharvest due to high respiration and transpiration rates. This study aimed to examine the effect of sucrose solution and shallot extract concentrations and their interaction on the shelf life of cut chrysanthemum flowers, as well as to determine the best concentration. The study employed a completely randomized design (CRD) with a 4x4 factorial arrangement and three replications. The first factor was sucrose concentration (0%, 2%, 4%, 6%) and the second factor was shallot extract concentration (0%, 10%, 20%, 30%). The main observed variables included flower freshness, and color changes in flowers, leaves, and stems. The results showed that sucrose application had a highly significant effect (P
Respons Pertumbuhan dan Hasil Kacang Hijau Lokal Malaka Terhadap Kombinasi Doses Pupuk NPK dan Jenis Pupuk Hayati di Lahan Kering Nusa Tenggara Timur Maria Klara Salli; Masria Masria; Yosefina Lewar
Jurnal Penelitian Pertanian Terapan Vol 26 No 2 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i2.4980

Abstract

Mung bean is a legume high in plant protein. Malaka mung beans have about 15% protein and up to 60% antioxidants. However, their productivity is lower than that of superior varieties. This study analyzed how different NPK doses and biofertilizer types affect the growth and yield of local Malaka mung beans, and identified the best combination. This experiment used a factorial Randomized Block Design with two factors: NPK dose (100 kg ha⁻¹ (N1) and 50 kg ha⁻¹ (N2) and biofertilizer type (no biofertilizer (P0) Bioboost (P1) Bion Up (P2), and Extragen (P3). Data were analyzed by ANOVA and Duncan’s Multiple Range Test. Soil samples were compositely analyzed to assess changes in pH, organic carbon, cation exchange capacity (CEC), and base saturation before and after the study. The results showed an interaction between treatments on stem diameter and seed yield per plot. The largest stem diameter and seed yield were obtained with 50 kg ha⁻¹ NPK + Extragen biofertilizer. The highest seed yield per plot was 153.78 g, equivalent to 1.28 t ha⁻¹. This yield was 40% higher than farmers’ yields, but reached only 64% of the yield of nationally superior mung bean varieties. These findings provide a vital foundation for developing a cultivation technology package for local mung beans in the drylands of East Nusa Tenggara. By advancing environmentally friendly agricultural inputs and strengthening food security rooted in local commodities, this work will make a significant contribution to sustainable development in the region.
Efektivitas Osmopriming dalam Meningkatkan Vigor dan Viabilitas Benih Bayam Adhitya Vishnu Pradana; Anung Wahyudi; Mertya Anugrah
Jurnal Penelitian Pertanian Terapan Vol 25 No 2 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i2.5020

Abstract

The availability of quality spinach (Amaranthus sp.) seeds is often hampered by expiration issues that drastically reduce germination. This study aims to analyze the effectiveness of osmopriming treatment in restoring the physiological quality of expired spinach seeds and determine the most optimal time for observing radicle emergence (ER). The experiment was conducted in April–May 2025 at the Seed Science Laboratory of Lampung State Polytechnic using a one-factor Completely Randomized Design (CRD). Spinach seeds that had expired for six years were given four invigoration treatments, namely Control, 5% KNO₃, 5% PEG 6000, and 150 ppm GA₃ with four replications. The results showed that osmopriming using 5% PEG 6000 and 150 ppm GA₃ was the best treatment in significantly increasing seed viability and vigor. The 5% PEG 6000 treatment produced the highest germination rate (98.66%) and the best vigor index (82.66%), followed by GA3150 ppm which produced the fastest growth rate of 96.02% KN/etmal. In contrast, the control treatment gave the lowest results with the percentage of abnormal shoots reaching 16.00%. Through the rapid test method, the 5% PEG 6000 and 150 ppm GA3 treatments were able to trigger the fastest radicle emergence with an extreme exponential curve spike since the 16th hour after imbibition. The most optimal RE observation time was achieved at the 30th hour by the 5% PEG 6000 treatment (97.33%) and reached a perfect accumulation of 100.00% at the 42nd hour by the 150 ppm GA3 treatment. This study proves that the RE test is effective as a rapid indicator to evaluate the recovery of vigor of small spinach seedlings.
Aplikasi Jarak Grow Light dan Fitohormon Alami Untuk Meningkatkan Produksi dan Kandungan Klorofil Microgreen Kacang Tunggak (Vigna Unguiculata L) Komang Tri Astiti Sari; Anung Wahyudi; Ni Siluh Putu Nuryanti
Jurnal Penelitian Pertanian Terapan Vol 25 No 2 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i2.5073

Abstract

Urban farming by cultivating microgreens is an alternative for fulfilling food security. Microgreen is a technique for cultivating vegetables in urban areas, with a harvest time of 7-14 days after sowing. Increased cowpea microgreen production is influenced by growing light and natural phytohormones. This research aimed to determine the role of grow light distance and natural phytohormones in increasing production and chlorophyll content in cowpea microgreens. This research used a Randomized Block Design (split-plot) consisting of 2 factors. The 1st factor, A1= 20 cm, A2= 40 cm and A3= 60 while the 2nd factor, B0 = Aquades, B1 = 50% Aquades + 50% Coconut Water, B2= 50% Aquades + 50% Onion Extract , B3 = Aquades 50% + Coconut Water 25% + Onion Extract 25%. The research results showed that the treatment of 50% distilled water + 25% coconut water + 25% shallot extract at a grow light distance of 60 cm produced the highest value for the plant height parameter, namely 16.70 cm. The highest chlorophyll content was in the combination of 50% distilled water + 50% coconut water at a distance of 20 cm, namely 52.97 mg/g. The 60 cm grow light distance treatment produced the highest plant height, namely 18.88 cm, the heaviest wet weight parameter using a 40 cm grow light distance, namely 1.43 grams and a 20 cm grow light distance produced a high chlorophyll content, namely 38.40 mg/g. The aquadest treatment produced the highest plant height, namely 14.33 cm, while the optimal number of leaves and fresh weight used the 50% aquades + 25% coconut water + 25% shallot extract treatment, namely 5 pieces and 1.38 g and the 50% aquades + coconut water treatment. 50% produces a high chlorophyll content of 24.87 mg/g.

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