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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 All submitted articles will not be published elsewhere, original and not considered for other publications.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 11 Documents
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Search results for , issue "Vol 22 No 2 (2022)" : 11 Documents clear
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.
Seleksi dan Evaluasi Sorgum Mutan Generasi M2 Hasil Radiasi Sinar Gamma untuk Peningkatan Karakter Biomassa Yuli Sulistyowati; Ade Nena Nurhasanah; Dwi Widyajayantie; Dwi Astuti; Agus Rachmat; Carla Frieda Pantouw; Vincentia Esti Windiastri; Syamsidah Rahmawati; Satya Nugroho
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.v22i2.2302

Abstract

Sorghum (Sorghum bicolor L.) is a cereal plant that can adapt to dry area so it has the potential to be developed in Indonesia. Sorghum has many benefits, namely as food, feed and industry. One of the ingredients in sorghum that can be used for industrial materials is lignin which can be used in the manufacture of particleboard and briquettes. In previous studies, selection of lignin content was carried out on 30 genotypes of sorghum and obtained the genotype with the highest lignin content, namely KS (Konawe Selatan). However, the KS genotype has low biomass, so improvements need to be made to increase biomass. Mutation is one way to increase genetic diversity. The purpose of this study was to obtain a sorghum mutant line that had characteristics related to biomass such as plant height, stem diameter and stem weight that were better than the parent. The research was carried out in July – November 2019 at the Citayam Experimental Field. The genetic material used was the M2 mutant lines of 300, 400 and 500 Gy gamma irradiation and 0 Gy control plants. A total of 50 panicles per gray were planted one row per panicle and the agronomic characters were observed. The agronomy observed on the M2 mutant line showed that the population of the 300 Gy mutant line had a wider range of values ​​than the 400 and 500 Gy populations and control. The 300 Gy mutant population also had a higher mean value than the 400 and 500 Gy mutant populations as well as the control on plant height 309.18 cm (control 305.33 cm), stem diameter 24.09 mm (control 19.37 mm), stem weight 860.73 g (control). 507.10 g), panicle length 42.55 cm (control 39.95 cm) and panicle weight 95.52 g (control 64.50 g). Mutations with gamma ray radiation can increase genetic diversity and selection in the M2 mutant lines obtained lines that have plant height, stem diameter and stem weight are better than the control which shows an increase in biomass.
STUDI PENDAHULUAN PRODUKSI NITRAT SEBAGAI BAHAN BAKU PUPUK DENGAN METODE PLASMA DISCHARGE Adi Waskito; Anisya Lisdiana; Herkuswyna Isnaniyah Wahab; Rendra Dwi Firmansyah; Ipin Aripin; Djohar Syamsi; Veny Luvita
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.v22i2.2313

Abstract

Nitrogen-based fertilizer production mainly involves the Haber-Bosch process, which synthesizes Ammonia via a chemical reaction of N2 from the air and H2 under high temperature and pressure conditions in the presence of a catalyst. However, the environmental concern for greenhouse gas emissions and high energy consumption triggers other Nitrogen fixation method development. The non-thermal plasma oxidation of N2 into Nitrate is a promising method since it has lower energy consumption and a more suitable process condition with a better environmental profile. This study tested the designed plasma discharge reactor tube to produce nitrate from air N2 with varying voltage, time, and airflow rate operating conditions. Nitrate concentration was analyzed using a UV-Vis spectrophotometer. The results show that nitrate concentration changes linearly with the applied voltage in a constant airflow rate and length of treatment time. The highest performance of the plasma discharge reactor was achieved on a 6 kV applied voltage with a flow rate of 0.2 L/min and a treatment time of 40 minutes where the obtained nitrate concentration was 7.7 ppm, which indicated the potential plasma discharged nitrate production for green fertilizer application. Further study shall be carried out to enhance the performance.
Analysis of the Adoption Rate of BATAN Mutant Rice Varieties in the Musi Rawas Area Zaini Amin; andry andry; Edy Humaidi
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.v22i2.2405

Abstract

The adoption of innovations of superior mutant rice varieties expected to help communities overcome hunger and food insecurity by providing easier access to food for poor people in rural areas. The purpose of this study is to determine the level of adoption of farmers for irradiated rice and analyze the factors that influence farmers in adopting irradiated rice. This research was conducted from October to November 2018 in Musi Rawas Regency using a survey method. Data obtained from interviews with 75 farmers who have applied the mutant variety. Survey data obtained were analyzed using SEM. The results showed that the technology adoption rate of mutant rice varieties reached the experimental stage; and There are three latent constructs that are significantly (ρ <0.01) positively correlated, namely: farmer preference (X2) to adoption rate (Y1), support of extension agent (X5) to farmer characteristics (X1) and farmer preference (X2).
Willingness Petani Menanam Bawang Putih: Bukti dari Kecamatan Sembalun, Nusa Tenggara Barat Lalu Hendri Setiawan; Suprehatin; Marlina Ayuni Khosyati; Nurul Nazira; Siti Shara; Baiq Wardani Hidayati
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.v22i2.2419

Abstract

Farmer’s willingness to grow garlic, a high value horticulture crop, is one of the important factors to achive self-sufficiency. The purpose of this study is to analyze the willingness of farmers to grow garlic and its determinant factors using theory of planned behavior (TPB) approach. This study used a primary data from a survey of 157 garlic farmers in Sembalun subdistrict as one of the center of garlic production in Indonesia. Data were analysed using scoring and Structural Equation Modeling-Partial Least Square (SEM-PLS). The result showed that willingness of Sembalun farmers to grow garlic is at a moderate level. The result also showed that attitude, subjective norms, and behavioral control of Sembalun farmers have a positif and significant effect on their willingness to grow garlic. This study recommends that increasing the willingness of farmers can be achieved by formulating a strategy using both internal and external factors in the micro, meso and macro levels.

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