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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 All submitted articles will not be published elsewhere, original and not considered for other publications.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 741 Documents
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Peranan Penyuluh Pertanian Terhadap Produktivitas Usahatani Padi Sawah di Kecamatan Kobalima Kabupaten Malaka Umbu Joka; Beatrix Dahu; Werenfridus Taena
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2176

Abstract

Agricultural extension agents play an important role in increasing the intelligence and competence of farmers, especially for farmers in border areas. This study aims to determine: 1). General depiction of rice farming and productivity; 2). The role of agricultural extension agents on rice farming productivity; 3). The role of agricultural extension agents on rice farming productivity through the behavior of farmers in Kobalima District, Malaka Regency. The sample of extension workers by census was 9 extension workers, while the farmer groups by purposive sampling were 9 farmer groups. Data analysis used descriptive analysis and path analysis. The results showed that the general description of rice farming and productivity of rice in Kobalima Subdistrict, covers a land area of 9.1 ha, production 31 tonnes and productivity 2.74 tonnes / ha. Directly, the role of agricultural extension agents affects the productivity of rice farming with a significant value of 0.004, with a coefficient of determination (R2) of 0.9. Meanwhile, the partial test of education, dissemination, facilitation, consultation, supervision has a significant effect on the productivity of rice farming. Indirectly, the role of agricultural extension agents has a significant effect on the productivity of rice farming through the behavior of farmers with a significant value of 0.053. The coefficient of determination (R2) is 0.999. While the partial test; facilitation has a significant effect on the productivity of lowland rice farming through the behavior of farmers in Kobalima District, Malaka Regency.
Pengaruh Kebijakan dan Faktor Penentu Impor Bawang Putih Indonesia dari Cina Jihan Zakia Adila; Andriyono Kilat Adhi; Rita Nurmalina
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2189

Abstract

The government has targeted garlic self-sufficiency in 2021 to meet the national demand for garlic. However, most of Indonesia's garlic needs are still met by importing garlic from garlic-producing countries. This study aims to analyze the influence of policies and determinants of Indonesian garlic imports from China as the largest garlic exporter in Indonesia and globally. This study analyzes the annual time series data from 1996 to 2019 using multiple linear regression with the Ordinary Least Square (OLS) method. This study found that the tariff elimination policy significantly affected the volume of garlic imports from China. Imported garlic prices, Indonesian population, and domestic shallot prices also significantly affect the volume of Indonesian garlic imports from China. Meanwhile, the RIPH policy and the real exchange rate did not significantly affect Indonesia's garlic imports from China.
Suplementasi Hidrolisat Glukomanan Tepung Porang (Amorphophallus oncophillus) pada Produk Minuman Sinbiotik Chandra Utami Wirawati; Dwi Eva Nirmagustina
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2276

Abstract

Synbiotics is a combination of prebiotics and probiotics that are believed to have a synergistic effect not only by inhibiting the growth of pathogenic bacteria and enhancing the growth of beneficial organisms, but also play a role as functional foods. This study was conducted to evaluate the konjac glucomannan hydrolyzate in synbiotics fermented milk. Factorial Randomized Block Design (RAK) was applied in this experiment. The combination of konjac glucomannan hydrolyzate (0%, 0.5%, 1%, 1.5%) and storage time (0 day, 30 days, 60 days) were applied to measure the acidity (pH), lactic acid konsentration and viscosity. Meanwhile viability of lactic acid bacteria and antibacterial activity were measure . The result showed that konjac glucomannan hydrolyzate supplementation were decreased product acidity (pH) and viscosity, but increased the lactic acid concentration during 60 days storage. Viability of lactic acid bacteria during 60 days storage were decreased except for 1% and 1.5% concentration. The synbiotic product showed antagonistic activity against pathogenic bacteria i.e. E. coli ATCC 25922, S. aureus ATCC 25923, and S. Typhimurium ATCC 14028. Supplementation of 1% glucomannan hydrolyzate for 60 days at 5oC showed the best characteristics in synbiotic product namely 3.45 acidity (pH), 1.24% total lactic acid , 3.24 Cp viscosity, and 8.69 log CFU/g total lactic acid bacteria.
Tiga Tahap Formulasi Strategi Pembangunan Sektor Pertanian di Kabupaten Lebak Adi Prasetya Muammar; Iwan Setiawan; Zumi Saidah
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2377

Abstract

The agricultural sector development strategy should be based on a comprehensive identification of various problems and the involvement of various interest groups. This study aims to produce priority alternative strategies for the government in Lebak Regency. The research method used in this study was a research based on qualitative and quantitative data. Data collection method used in qualitative data was interviews and quantitative data was questionnaires. The source of information that was being searched was Lebak regency government, farmer, agricultural expert, and strategic management expert. From the data collected, it was sorted according to the stages and then analyzed using SWOT and QSPM analysis. The results of the study show that first, several internal and external factors were identified from the interviews, second, the strategic position of the Lebak Regency government in agricultural development efforts was grow and build position, and third, there were nine alternative priority strategies for the development of the agricultural sector. The strategy that becomes the main alternative is “Be active in collecting information on assistance or cooperation programs from the central, provincial, regional government or other institutions”. This strategy is the first priority ranking that needs to be considered in the local government policy of the Lebak Regency.
Pertumbuhan Kedelai pada Kondisi Cekaman Salinitas dengan Pemberian Ekstrak Kulit Buah Nanas (Ananas comosus L) Maman Suryaman; Fitri Kurniati; Hani Khaerunisa
Jurnal Penelitian Pertanian Terapan Vol 22 No 2 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i2.2148

Abstract

This study aims to determine the potential of pineapple peel extract in improving soybean growth due to salinity stress. This research was carried out at the Experimental Garden of the Faculty of Agriculture, Siliwangi University from October to November 2020. This research was conducted experimentally using a Randomized Block Design with a factorial pattern. Factor 1 is salinity stress with 3 levels (NaCl 0% = EC 0.56 mS cm-1, NaCl 0.5% = EC 7.59 mS cm-1, and NaCl 1% = EC 8.25 mS cm-1), factor 2 is the concentration of pineapple peel extract (0%, 1%, and 2 %), with 3 replicatons. The data observed consisted of: leaf area, relative water content of leaves, leaf chlorophyll content, and plant dry weight. Data were analyzed by Anova and continued with Duncan's test at 5% α level. The results showed that the effect of interaction between salinity stress and pineapple peel extract on soybean growth was not significant. Salinity stress reduced leaf area, relative water content of leaves, chlorophyll content, and dry weight of soybean plants, while pineapple peel extract could increase leaf area, chlorophyll content and dry weight of soybean plants. Thus, pineapple peel extract has the potential to improve soybean growth under conditions of salinity stress. Keywords: growth, pineapple peel extract, salinity stress, soybean.
KARAKTERISTIK MINUMAN PROBIOTIK SARI JAMBU BIJI MERAH DENGAN PENAMBAHAN EKSTRAK KAYU MANIS DAN KAYU SECANG Fibra Nurainy; Samsul Rizal; Suharyono Suharyono; Esa Susanti
Jurnal Penelitian Pertanian Terapan Vol 22 No 2 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i2.2149

Abstract

Red guava was a potential fruit that could be used as raw material for probiotic drinks. The addition of spices such as cinnamon and sappan wood could increase the acceptance of its sensory properties as well as its functional benefits. This study aims to determine the effect of spices (cinnamon and sappan wood) and spice concentration on total lactic acid bacteria, total acid, pH and sensory properties of red guava juice probiotic drink fermented with Lactobacillus casei bacteria. The treatments were arranged in a Completely Randomized Block Design (RAKL) with two factors and three replications. The first factor was the type of spice which consists of cinnamon (J1) and sappan wood (J2). The second factor was the concentration of spices, namely 1% (K1), 2% (K2), 3% (K3), 4% (K4), and 5% (K5).The data were analyzed by comparison test and orthogonal polynomial (OP/OC) at 5% level. The results showed that the type of spice (cinnamon and sappan wood) significantly affected the total lactic acid bacteria (LAB), total lactic acid, aroma, and overall acceptance of the red-spiced guava juice probiotic drink. Spice concentration had a significant linear effect on total lactic acid bacteria (LAB), total lactic acid, pH, and aroma, quadratic effect on taste and overall acceptance of red guava juice probiotic drink. The addition of 3% cinnamon extract resulted in a red-spiced guava juice probiotic drink with the best characteristics with a total LAB of 10.93 log cfu/ml; titrable acidity of 0.49%; pH of 4.25; hedonic taste score of 3.31 (medium like); hedonic aroma score of 3.24 (medium like); and an overall acceptance score of 3.53 (likes).
The Diversity and Dominance of Weeds in Various Population Proportions of Intercropping Soybeans With Corn Agus Nugroho Setiawan; Sarjiyah Sarjiyah; Nur Rahmi
Jurnal Penelitian Pertanian Terapan Vol 22 No 2 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i2.2165

Abstract

Soybean is an important food crop for Indonesia after rice and corn. Soybean productivity in Indonesia is still low because most farmers use monoculture cropping patterns which has many weaknesses. Intercropping is an alternative to increase soybean productivity because it has many advantages. Soybeans can be intercropped with corn because the two plants have different physical characteristics, physiology and growth patterns. This research aimed to obtain information about the diversity and abundance of weeds in soybean and corn intercropping. The study was conducted using a single factor treatment design which will be arranged in a single plot field design, using Grobogan variety soybean and Bisma variety corn. The treatment was the proportion of soybean and corn populations which consisted of 4 proportions, i.e. 2:1, 3:1, 4:1, and 5:1, and monoculture soybeans were also planted as a control. Observations on weeds were carried out at the age of 2, 8, and 12 weeks after planting (before harvest) with vegetation analysis. The size of each sample is 0.5 m x 0.5 m with 15 sample plots/plots. The results showed that based on the summed dominance ratio (SDR) in the research area, 16 species of weeds were dominated by broadleaf weeds, with the dominant types of weeds being Phyllanthus urinaria L., Eleusine indica L., and Oryza sativa L. The results showed that based on the Summed Dominance Ratio (SDR) in soybean there were 16 species of weeds that were dominated by broadleaf weeds, with the dominant types of weeds being Phyllanthus urinaria L., Eleusine indica L., and Oryza. sativa L. Weeds growing on soybean intercropping with corn and soybean monoculture have a medium diversity index (H').
Performa Karakter Agronomi dan Produktivitas Tujuh Varietas Kacang Tunggak Generasi Kedua Anung wahyudi; Muhamad Syukur; Nazirwan Nazirwan; Subandi Subandi; Akbar Hidayatullah Zaini; Yohanes Hendrianto; Wahid Rifan Gustoro; Ahmad Fahrori Al Hasani; Wulan Rahmawati; Ria Ismiatun; Muhammad Rifqi Setio Aji
Jurnal Penelitian Pertanian Terapan Vol 22 No 2 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i2.2205

Abstract

This research aims to investigate the development and yield characteristics of 2nd generation of cowpea. Cowpea is a small legume with potential for future development as a food, feed, and even green manure. It also has the potential to be developed as a soybean substitute as a raw material for tempe. This study was place from July to September 2021, and it used a randomized block design with a single factor of four test varieties and three comparator varieties, with three replications. Test varieties (Albina, Uno, Tampi, Arghavan) and cowpea comparisons were used in this study (KT-1, KT-7, KT-9) on 2nd generation. The F test was used to analyze the data, and if the results were valid, the test was repeated using the LSD test (Least Significant Difference) at the 5% level. Plant height, stem diameter, number of branches, stem length, leaf length, petiole length, and leaf breadth were found to be diverse agronomic features in seven cowpea types grown in the lowlands, according to the findings. While the yield character revealed that the tampi variety had greater yields on the criteria of young pod productivity and seed productivity, namely 1.45 tons ha-1 and 7.53 tons ha-1, respectively, when compared to other kinds.
Factors Affecting The Smallholder Sugarcane Plantation Area Eka Miftakhul Jannah; Aditya Arief Rachmadhan; Meidaliyantisyah Meidaliyantisyah; Jekvy Hendra
Jurnal Penelitian Pertanian Terapan Vol 22 No 2 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i2.2238

Abstract

The decrease of the smallholder sugarcane area is the major problem for the Indonesian plantation white sugar industry. This study aims to analyze factors that affecting the decrease of the smallholder sugarcane area. This study uses a panel data econometric model; using cross-sectional data from five provinces of smallholder sugarcane base area (East Java, Central Java, Lampung, West Java, and Yogyakarta) with monthly time series from 2014 to 2018. Estimates use the generalized least square (GLS) method. The results showed that the decrease of the smallholder sugarcane area was significantly affected by: (1) the decrease of sugar factories that were actively operating, (2) the increase of labor wages in the estate crops sector, (3) land competition with corn commodities, and (4) the increase of residential areas due to growth of population. The opening of new sugar factories out of Java Island is an alternative to encourages land clearing for smallholder sugarcane areas.
APLIKASI KITOSAN TERHADAP PERTUMBUHAN ANGGREK DENDROBIUM SONIA PADA TAHAP AKLIMATISASI Raisah Bani; Parawita Dewanti; Didik Pudji Restanto; Laily Ilman Widuri; Firdha Narulita Alfian
Jurnal Penelitian Pertanian Terapan Vol 22 No 2 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i2.2264

Abstract

Dendrobium orchid is one of the ornamental plants with high economic value. Public interest in orchids, especially Dendrobium species is quite high and dominates the markets which make the seedling request also getting higher. The critical stage in determining the success of orchid seedling growth is also determined by acclimatization techniques. Differences in environmental conditions at the acclimatization stage can cause transpiration and interfere with nutrient absorption of plantlets. Chitosan as a natural organic material is a simple derivative of chitin which can function as a biofertilizer and bioimmuner. The purpose of this study was to determine the response of orchid seedling growth to the application of chitosan for the success of the acclimatization stage. The research method used a completely randomized design (CRD) with one factor, concentration of chitosan. The acclimatization stage using chitosan application with concentrations of 0 ppm, 2 ppm, 2.5 ppm, 3 ppm, 3.5 ppm, 4 ppm, 4.5 ppm and 5 ppm. The data obtained were then analyzed for variance with the F test at the 5% level. The treatment with significant effect was further tested with Duncan Multiple Range Test (DMRT) at 95% level. The results showed that the application of chitosan with a concentration of 3 ppm had a significant effect in increasing the parameters of plant growth percentage, plant height, number of leaves, leaf width, leaf length, root length, number of roots, and fresh weight of Dendrobium sonia orchid plants at the acclimatization stage.

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