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INDONESIA
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 All submitted articles will not be published elsewhere, original and not considered for other publications.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 6 Documents
 1 
Search results for , issue "Vol 25 No 4 (2025)" : 6 Documents clear
Komposisi Gulma Dan Pertumbuhan Padi Sawah Pada Aplikasi Teknologi Budidaya Tanpa Olah Tanah Dan Frekuensi Penyiangan Rahmat Muhidin; Jenal Mutakin; Ardli Swardana; Rahmi Fatimah; Maryati Puspitasari
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.3895

Abstract

The purpose of this study is to analyze the composition of weeds and the growth of lowland rice influenced by the use of TOT cultivation technology and varying weeding frequencies. The study was carried out between June and November 2024. The approach employed in this research was an experimental method utilizing a split plot design, with two primary factors: the application of cultivation technology (B), featuring two treatment conditions, and the frequency of weeding (F), with six different levels of treatment. A combination of treatment plots was established for each block. Weed samples were taken at 7 points in each combination plot diagonally, using a square freem of 50cm x 50cm. Weed identification results were analyzed for dominance values (S.D.R) and Diversity Index (H') based on Shannon-Wiener. Data on weed dry weight and paddy growth obtained were analyzed using ANOVA, with a further DRMT (Duncan) test at the 5% level.Result of the research show that TOT cultivation technology and weeding frequency have a significant effect on weeds and rice growth. The most weeds were found in the conventional system with 37 species with the dominant weed being Cynodon dactylon for those that were not weeded and Pistia stratiotes for those that were weeded. In the TOT system, 24 species were found with the dominant weed Pistia stratiotes in both weeded and unlit fields, with the diversity index in each treatment being moderate. A weeding frequency of 3 times provides the lowest dry weight of weeds. on the number of tillers at the age of 40 DAP and the frequency of competition had the best effect on weed suppression and the number of leaves per hil
Pengaruh Jarak Zinnia elegans Dengan Kedelai (Glycine max) Terhadap Kelimpahan Musuh Alami dan Serangan Hama, West Aceh Sari, Putri Mustika; Lisa, Oviana; Fitria Lizmah, Sumeinika; Amadius Weihan, Rayhan; Andriani, Dewi
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.4327

Abstract

This study was conducted to determine the effect of Zinnia elegans plant spacing as a refugiaplant on the abundance of natural enemies and the level of pest attacks on soybean (Glycinemax). The study used a non-factorial Randomized Block Design (RBD) with five treatments:no refugia (J0), and plant spacing of 40 cm (J1), 60 cm (J2), 80 cm (J3), and 100 cm (J4),each with four replications. The parameters observed included the identification andpopulation of natural enemy insects, the abundance of natural enemy insects, the area andintensity of pest attacks. Data analysis was carried out using analysis of variance andcontinued with the LSD test at the 5% level. The results showed that the 40 cm plant spacing(J1) was the most effective treatment, resulting in the highest abundance of natural enemies(31 individuals from 4 families) and the lowest pest population (2 individuals). Treatment J1also showed the lowest pest attack area (5.47%) and very light attack intensity (3.62%),while the control (J0) showed an attack area of 23.47% and an attack intensity of 19.42%,which is classified as moderate. The high abundance of natural enemies at a plantingdistance of 40 cm indicates the effectiveness of refugia in creating microhabitats that supportnatural predators in the soybean planting ecosystem. These data indicate that the use ofZinnia elegans refugia at optimal planting distances can suppress pest attacks whileincreasing soybean plant productivity. Therefore, the integration of refugia plants withappropriate planting distances can be an effective, environmentally friendly biologicalcontrol strategy and support sustainable agriculture.  
The Pengaruh Aplikasi Photosynthetic Bacteria Terhadap Klorofil Daun dan Produksi Kacang Merah Varietas Inerie Lewar, Yosefina; Hasan, Ali; Vertygo, Stormy; Klara Salli, Maria; Medho, Maria S.; V. Sinlae, Dina
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.4446

Abstract

Kidney beans (Phaseolus vulgaris), belonging to the Leguminosae family and classified as C3 plants, typically exhibit slower photosynthesis and lower biomass production under high light intensity and hot temperatures. To overcome these limitations and enhance photosynthetic efficiency, external stimulation of plant physiological processes is crucial. One promising approach involves the application of Photosynthetic Bacteria (PSB), known for their independent photosynthetic capabilities. This study aimed to evaluate the impact of PSB application at various growth stages on leaf chlorophyll content and the yield of 'Inerie' variety kidney beans, and to identify the optimal application timing. A Randomized Block Design (RBD) was employed, comparing seven PSB application treatments: a control, single applications at the exponential growth, flower initiation, and pod formation stages, and combined applications (exponential + flower initiation; exponential + pod formation; flower initiation + pod formation; and exponential + flower initiation + pod formation). The results indicated that PSB application at different growth stages significantly influenced both chlorophyll content and kidney bean production. The optimal application time was identified as the flower initiation phase, which significantly increased chlorophyll a content to 8.51 mg/g, total chlorophyll to 14.69 mg/g, and enhanced yield components, resulting in 22.22 pods per plant, 63.06 seeds per plant, and a seed weight of 24.44 g.
Dampak Pemberian Pupuk Kompos Salak Terhadap Pertumbuhan Dan Hasil Bayam Hijau (Amaranthus viridis L.) Di Desa Gununggiana, Madukara, Banjarnegara, Jawa Tengah Maghfiroh Hayati, Ana; Lunnadiyah Aprilia, Rennanti
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.4543

Abstract

Green amaranth (Amaranthus viridis L.) is a nutrient-dense leafy vegetable widely consumed for its protein, vitamins (A, B, C), and mineral salts (Ca, P, Fe). This study evaluated the effect of salak-waste compost on the growth and yield of green amaranth. A completely randomized design (CRD) with six single-factor compost rates and four replications was used: D1 = 0 g, D2 = 250 g, D3 = 500 g, D4 = 750 g, D5 = 1,000 g, and D6 = 1,250 g of compost per polybag. The experiment was conducted from March to August in Gununggiana Village, Banjarnegara, Indonesia. Observations included plant height, leaf number, leaf area, root length, whole-plant fresh and dry weights, and root fresh and dry weights; air temperature and relative humidity were recorded as environmental covariates. Data were analyzed using one-way ANOVA at α = 0.05, and significant means were separated with Duncan’s Multiple Range Test (DMRT, 5%). Treatments 1,250 g soil + 750 g compost (D4) and 1,000 g soil + 1,000 g compost (D5) produced the highest mean values for most growth and yield variables (p < 0.05), indicating that these combinations can be recommended to enhance the performance of green amaranth under the conditions of this study.
Peningkatan Ketahanan Terimbas Bawang Merah Terhadap Penyakit Moler Pada Variasi Konsentrasi Spora Agens Hayati Fusarium Oxysporum F. Sp. Cepae Avirulen Nugroho, Bambang; Mildaryani, Warmanti
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.4576

Abstract

Moler disease caused by Fusarium oxysporum f. sp. cepae is a main disease on shallot resulting high yield loss and always found in every shallot plantation. Biological control using antagonistic microorganism is an effective method in controlling moler disease with the mode of action of induced resistance. Expression of induced resistance may be affected by several factors such as the concentration of inducer. This research studied the effect of concentration of inducer in increasing induced resistance of shallot to moler disease so that the best contration was revealed. Single factor (spore concentration) with Completely Randomized Design and three replications was used. Spore concentration of avirulent F. oxyssporum f. sp. cepae used in this research was as follows: A = control, B = spore concentration of 104/ml, C = spore concentration of 105/ml, and D = spore concentration of 106/ml. Induced resistance was raised by soaking the shallot bulbs in the spore suspension of the inducer for about 30 minutes. The bulbs were then planted in polybags containing planting media of soil : cow manure with the ration of 1:1 (v/v). The results showed that the treatments were able to increase shallot resistance to moler disease from susceptible to moderate. Regression analysis revealed that the higher the concentration the higher the suppression of moler disease intensity. Increasing suppression of moler disease intensity may increase the growth and yield of shallot.
Uji Kinerja Lima Galur Jagung Hibrida Polinela Dibandingkan Dengan Lima Varietas Jagung Hibrida Unggul Nasional Syuriani, Eka Erlinda; Putri, Ria; Hidayatullah Zaini, Akbar; Indrani, Satria Bagas; Krisnandar, Krisnandar
Jurnal Penelitian Pertanian Terapan Vol 25 No 4 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i4.4644

Abstract

Issues surrounding hybrid corn seeds in Indonesia include the increasing demand for seeds from year to year and the limited selection of hybrid varieties on the market. One solution to reduce the problem of hybrid corn seed availability is to develop new strains or varieties using parent plants from local areas. Polinela corn breeders have currently developed several hybrid corn lines (F1) that need to be tested for performance. The objective of this study was to determine the performance advantages of five Polinela hybrid corn lines compared to five superior commercial hybrid corn varieties developed by several multinational companies. The study was designed using a completely randomized block design (CRBD). The treatments used were five Polinela hybrid corn lines and five commercial hybrid corn varieties. The observations included quantitative yield components and yield potential, as well as several qualitative characteristics of the lines and varieties. The results showed that there were three new hybrid lines, namely line PL 401/PL 20, line PL.401/PL.2020, and line PL 202/PL 40), which had yield potential equivalent to the hybrid varieties BISI 18, NK 22, and Pertiwi 3, with a dry grain yield potential of between 11.7 and 12.9 tons.ha-1. There are three new hybrid corn lines with grain yield potential equivalent to three commercial varieties and higher than two comparison varieties, namely Pioneer 88 and Pertiwi 6.

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