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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 All submitted articles will not be published elsewhere, original and not considered for other publications.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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Pola Sebaran dan Rendemen Hasil Gliserolisis Enzimatis Campuran CPO (Crude Palm Oil) dan PKO (Palm Kernel Oil) Fizzaria Khasbullah; Murhadi Murhadi; Nurleni Kurniawati; Bigi Undadraja; Widia Rini Hartari
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2272

Abstract

The use of oil in the food and non-food industries is increasing with the increasing number of findings on oleochemical synthesis processes that can be applied on an industrial scale. MAGs and DAGs are used as part of fat products and are often associated with other emulsifiers. MAG synthesis can be carried out chemically and enzymatically. The glycerolysis process using lipase enzymes as biocatalysts requires relatively low energy and produces products with better quality. This study uses enzymatic glycerolysis and will observe the distribution pattern of the glycerolysis product which describes the level of completeness of the reaction. The distribution pattern that describes the perfection of the reaction is a distribution pattern that has spots that spread regularly (not random/straight). The experiment was carried out with a single factor and two replications. The data are presented in the form of tables and histograms, then the results are discussed descriptively. Treatment factors, namely the ratio of the mixture of CPO and PKO consisting of 11 ratios of CPO and PKO: 0.2; 0.4; 0.6; 0.8; 1.0; 1,2; 1.4; 1.6; 1.8 and two controls. Based on the observations made, the glycerolysis of a mixture of CPO and PKO in various ratios, produces a pattern of distribution on the TLC plate which is regular and the Rf (Retardation factor) value shows that from closest to furthest are MAG, DAG, ALB, and TAG with Rf 0.01; 0.12; 0.31; 0.57, respectively. The highest MAG yield was produced by the results of glycerolysis of CPO control (83.90%) followed by PKO control (74.90%) and a mixture of CPO-PKO with a ratio of 0.8 (73.71%). The highest yield of MAG-DAG was produced by a mixture of CPO-PKO with a ratio of 1.6 (93.21%) followed by CPO control (91.88%) and a ratio of 0.8 (73.71%). Key Word: CPO, enzymatic glycerolysis, MAG, PKO, TLC.
Character Testing Of New Superior Rice Line Through Participatory Plant Breeding Method Jaenudin Kartahadimaja; Eka Erlinda Syuriani
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2280

Abstract

Among the superior varieties can be obtained through breeding. The low level of farmer adoption of improved varieties resulting from breeding is partly due to the different preferences of farmers with breeding. The development of specific varieties will be successful through a participatory breeding program that involves breeders, farmers and rice industry players in the selection process for prospective new varieties. The research objective was to analyze and select the quantitative and qualitative characters of 12 new rice lines to produce new superior rice varieties that were more suitable to farmers' tastes. The research in the field was compiled using a Randomized Completely Block Design (RCBD), as a treatment consisting of 12 lines of F11 generation, each treatment was repeated three times. Observations were made on the like and dislike statements of respondents consisting of 20 farmers on the phenotypic character of each line, as well as an assessment of the phenotype acceptance of each line as assessed by the breeders (4 breeders) before harvest following the guidelines (IRRI, 2002) . The results showed that the F3 line had the highest preference value, namely the value of 0.9, meaning that the farmers liked the most. The line with the lowest preference value is the D2 line with a value of -1 (minus one), meaning that it is the least preferred. Based on the phenotype acceptance value of the breeders for each line, three lines had a phenotypic value of 1 or very good value, namely the B4, H1, and H4 lines, while those with a value of 3 or good were eight lines, namely the B2, B3, B7, D2, D3, F3, F4, and L2 lines. One line has a bad phenotype value, namely the K.
Sumber Kerentanan Ekonomi Petani Kopi Di Hulu DAS Lampung: LAMPUNG SMALLHODERS COFFEE FARMER’S ECONOMICS VULNERABILITY SOURCES IN UPSTREAM WATERSHEDS Fitriani Fitriani; Didik Kuswadi
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2286

Abstract

It is necessary to strengthen the resilience of farmer households by increasing their adaptability and mitigating difficult conditions or risks of business that make unsustainable. The sources of the potential economic vulnerability of farmer households are the initial information for basic dealing with business risks. The ability to identify potential sources of vulnerability as an economic risk will stimulate efforts to increase productivity, income, and rural economic growth. This research focuses on exploring the potential sources of the economic vulnerability of coffee farmers' households in the upstream Lampung watershed. The survey research conducted in coffee production centers in three sub-districts coverage​​the upstream Way Besai watershed, West Lampung. It was Air Hitam, Way Tenong, and Sumber Jaya sub-districts with a total of 165 coffee farmers as respondents. The data analysis method used a non-parametric statistical approach. The results of the study indicate that the source of the potential economic vulnerability of farmers in the upstream watershed is closely related to the ownership and area of ​​land assets. Land assets are the main source of income for farming households and a source of household expenditure allocation for both food and non-food, including for savings and investment purposes. These important factors become important entry points in efforts to build resilient farmer household resilience. Resilience is the basic social capital in achieving sustainable production.
Aplikasi Pupuk KNO3 dan NPK Pada Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.) Double Tone Di Main-Nursery. Bambang Utoyo; Kresna Shifa Usodri; Yan Sukmawan; Ridho Esa Putra Arahman; Hamdani Hamdani; Albertus Sudirman
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2600

Abstract

One of the efforts that can be made to optimize the growth of double tone oil palm seedlings is to apply an appropriate combination of fertilization. The purpose of this study was to obtain the best KNO3 concentration and dose of NPK fertilizer in optimizing the growth of double tone oil palm seedlings in the main nursery. The research was carried out from December to July 2021. The research location was in the Oil Palm Seedling Business Unit of the Lampung State Polytechnic, Rajabasa, Bandar Lampung. This research was conducted using a factorial randomized block design (RAK) which was repeated 5 times. The first factor is the concentration of KNO3 fertilizer which consists of 3 levels, namely 0%, 2%, and 4%. The second factor is the dose of Compound NPK fertilizer which consists of 2 levels, namely 2.5 g and 5 g. Observations were made on the variables of seedling height, seedling diameter, leaf greenness, number of midribs and leaf area. Observational data were analyzed by F test at level =5%. If the results of the analysis of variance are significant, then it is continued with the smallest significant difference test (BNT) at the level of =5%. The results showed that the application of 4% KNO3 with a dose of 5 g compound NPK fertilizer showed the best results in optimizing the growth of double tone oil palm seedlings in the main nursery on all observation variables.
Pemodelan Loyalitas Konsumen Berdasarkan Kepuasan Terhadap Atribut Produk Madu Suhita bina unteawati; Edy Humaidi; Kusmaria
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2701

Abstract

The purpose of this study is to analyze what factors affect consumer satisfaction with Suhita honey, analyze what factors affect consumer loyalty Suhita honey, analyze the effect of satisfaction on consumer loyalty Suhita honey, describe a model of consumer loyalty on product attributes of Suhita honey. This research was conducted by survey method and direct observation. The sampling method in this study will be carried out using the accidental sampling method. The analytical techniques used are descriptive analysis and Structural Equation Modeling (SEM) analysis. The results showed that only two variables had a significant effect, namely the product quality variable with P-values ​​of 0.033 (<0.05) and the service quality variable with P-values ​​of 0.031 (<0.05). Meanwhile, the price variable has no significant effect on consumer satisfaction, seen from the P-values ​​of 0.815 (> 0.05). Furthermore, for the test results whether there is an influence between consumer satisfaction on consumer loyalty shows a significant influence seen from the value with P-values ​​of 0.000 (<0.05), meaning that satisfaction has an effect on consumer loyalty.
Produktivitas Air Pada Sistem Irigasi Tetes Untuk Tanaman Hidroponik Caisim (Brassica chinensis var. Parachinensis) Dengan Berbagai Ukuran Polybag Dan Media Tanam Yang Berbeda I Gde Darmaputra; Muhammad Idrus; Suprapto Suprapto
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2769

Abstract

his research was conducted in a plastic house at the Lampung State Polytechnic from June to October 2022. The study was a factorial experiment consisting of two factors with a randomized block design. The first factor is the type of planting media with 4 kinds, such as cocopeat, husk charcoal, sand, and soil. The second factor is the polybag size, such as small, medium, and large sizes. Each factor or treatment was repeated 3 times. The tools and materials used are drip irrigation, digital scales, polybags, pearl NPK fertilizer and caisim seeds. The objectives of the study were (1) to measure the growth and production of caisim plants on various planting media and polybag sizes, (2) to measure the amount of irrigation water used, and (3) to calculate the water productivity of caisim plants. The observed variables included crop production, amount of water use, and water productivity. Data analysis using ANOVA at the 5% significant difference test level. The results showed that there was no interaction between the type of planting media and the size of polybags, but the response in the treatment between types of planting media and between polybag sizes was significantly different. The type of media significantly affected the number of leaves, plant height, production, and water productivity of hydroponic caisim plants using a drip irrigation system. Polybag size did not significantly affect the number of leaves, plant height, production, and water productivity of hydroponic caisim plants using a drip irrigation system. In hydroponic caisim cultivation using drip irrigation, cocopeat growing media gave an average number of 9.8 leaves, plant height 34.4 cm, production 97.1 g, and water productivity 6.18 kg/m3 and was not significantly different from soil medium.
Sebuah PEMUPUKAN N-P-K DAN POC TERHADAP PERTUMBUHAN, FISIOLOGI DAN HASIL TANAMAN JEWAWUT (Setaria Italica) Wildan Zaki Mubarok; Ahadiyat Yugi Rahayu; Tamad Tamad
Jurnal Penelitian Pertanian Terapan Vol 23 No 1 (2023)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v23i1.2116

Abstract

Jewawut (Setaria italica) is a cereal plant that has characteristics like rice. The use of millet as food has not been optimal for production. Millet production can be influenced by several factors, including soil conditions, plant varieties, climate and cultivation techniques. The aim of this research is to reduce the use of inorganic N-P-K fertilizers and obtain the optimal N-P-K fertilization dosage with a combination of Liquid Organic Fertilizer (LOF) treatment. The research was done on dry land in Purwanegara Village, North Purwokerto District and in the Laboratory at the Faculty of Agriculture Jenderal Soedirman University, begin at May 2019 until October 2019. The research design was a randomized block design (RBD). There are two factors was be examined, the dose of N-P-K fertilizer and the concentration of two types of POC. The recommended dosage of N-P-K fertilizer for millet is N 138 kg / ha, P2O5 54 kg/ha, and K2O 45 kg/ha. The N-P-K fertilization treatment was divided into 25%, 50%, 75% 100%. Combined with LOF consisting of control, bamboo root  LOF concentrations of 5 ml/l and 10 ml/l, Rabbit urine LOF 50% with concentrations of 2 ml / l and 4ml / l. The results showed that the growth characters due to application of 50% N-P-K fertilization equal with 100% N-P-K on plant height. Application of 50% N-P-K gained the optimum of flowering age and yield per hectare. Liquid organic fertilizer had not improved on growth and yield of foxtail millet yet.
KARAKTER AGRONOMI DAN FISIOLOGI TANAMAN PADI (Oryza sativa L. cv Inpari Unsoed 79 Agritan) YANG TERINFEKSI Xanthomonas oryzae pv. oryzae DAN DIINOKULASI RHIZOBACTERIA INDIGENOUS LAHAN SALIN purwanto; Prastowo Aji Budi Hutomo
Jurnal Penelitian Pertanian Terapan Vol 23 No 1 (2023)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v23i1.2215

Abstract

One of the goals of Indonesia's rice improvement program is to develop high-yielding varieties with long and slender rice grains. This study aimed to estimate the genetic parameters affecting gene action, amount of gene action, number of gene control, magnitude of genetic variability, heritability, genetic advance, and correlations between yield components and yield of Inpari 31 x Basmati Delta 9 in the F2 generation. The experiment was carried out at an experimental farm at the Faculty of Agriculture, Jenderal Soedirman University, Purwokerto, Central Java, Indonesia. The genetic material used was seed from an F2 population crossed between Inpari 31 and Basmati Delta 9 with the two parental genotypes. Estimates of skewness, kurtosis, genetic variability, heritability, genetic advance, correlations between traits and path analysis were calculated for yield and yield component traits. Results show that additive and complementary epistatic action control yield-related and yield traits. Yield-related trait components and yield are controlled by a monogenic or polygenic genes, depending on the observed trait. Wide genetic variability, high broad sense heritability and high genetic advance were found in the number of productive tillers per hill and grain weight per panicle.  These traits show a significant positive correlation and have a direct effect on the yield; therefore, they can be used as traits in the selection to produce high-yielding rice, with long rice sizes and slender shapes.  
EKSPLORASI KARAKTER SEKUNDER UNTUK SELEKSI TIDAK LANGSUNG PADA JAGUNG DI KONDISI KEKERINGAN Slamet Bambang Priyanto; Moch. Arif Subechan
Jurnal Penelitian Pertanian Terapan Vol 23 No 1 (2023)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v23i1.2249

Abstract

Yield maize direct selection at drought conditions sometimes is inefficient. Indirect selection through secondary characters can increase selection efficiency. This study aims to obtain secondary characters that can be used for indirect selection. This research was conducted at IP2TP Bajeng, Indonesia Cereal Research Institute, Gowa Regency, South Sulawesi Province from July to November 2020. The research was arranged in a randomized Alpha Lattice group design with three replications. The genotypes used were 36 hybrid maize candidates and four comparison varieties. Characters that have high diversity are determined by a loading factor value of more than 0.7. The correlation between secondary characters and yield was using Pearson correlation and heritability ​​are derived from the analysis of variance. The results showed that the characters of day to anthesis, day to silk, number of harvested ears and ear diameter were secondary characters that could be used as the indirect selection of maize in drought conditions.   drought;; indirect selection, maize; secondary characters
Alfisol Soil Fertility Before Planting and After Harvest as Meloon Planting Media with Bioboost Fertilization Nurul Fajeriana; Muzna Ardin Abdul Gafur
Jurnal Penelitian Pertanian Terapan Vol 23 No 1 (2023)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v23i1.2278

Abstract

Soil fertility is the potential of the soil to provide nutrients in sufficient quantities in available and balanced forms to ensure optimum plant growth and production. The current availability of nutrients in the soil has decreased due to continuous land use with the use of chemical fertilizers in the cultivation process, plus leaching and erosion by rainwater, not least in Alfisol soils. Therefore, fertilization with organic materials is carried out, namely the provision of Bioboost fertilizer. Bio boost is a biological fertilizer containing superior soil microorganisms, helpful in increasing soil fertility as a result of soil biochemical processes. One of the applications of organic cultivation is the cultivation of melon (Cucumis melo L.) because melon is a plant with high economic value and is profitable to be cultivated as a source of income for farmers. Based on this, a study was conducted to determine the nutrient status of Alfisol soil before planting and after harvesting which was used as a Melon plant with various concentrations of Bioobost fertilization. Furthermore, for the analysis of soil fertility, laboratory analysis was carried out by taking 1 kg of disturbed soil samples that had been air-dried and then analyzing soil properties, namely texture, pH (H2O), C-Organic (%), Nitrogen (%), P2O5 (ppm), K (cmol kg-1), Ca (cmol kg-1), Mg (cmol kg-1), Na (cmol kg-1), Na (cmol kg-1), CEC (cmol kg-1), and base saturation (%). The application of Bio boosts fertilizer showed an increase in the nutrient status of Alfisol soil as a Melon growing from low to moderate categories before planting to medium to high categories after harvest. The more concentration of Bioboost fertilizer given, the soil nutrient status also increases. The concentration of P4 (1100ml bio boost + 400ml water) gave the highest increase in nutrient status. Keywords: Agrotechnology; organic-fertilizer; soil-chemical

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