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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 All submitted articles will not be published elsewhere, original and not considered for other publications.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 10 Documents
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Search results for , issue "Vol 20 No 2 (2020)" : 10 Documents clear
INTERAKSI PERLAKUAN MIKORIZA DAN INOKULUM Rhizobium sp TERHADAP PERTUMBUHAN DAN PEMBENTUKAN BINTIL AKAR Mucuna bracteata Mardiana Wahyuni; Ricky Elmando Saragih; Mariani Sembiring
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1408

Abstract

The purpose of this study was to determine the effect of mycorrhizal treatment and inoculation of Rhizobium sp on the growth and formation of Mucuna bracteata root nodules. The study was conducted in the STIPAP Medan experimental garden. The study was conducted in April - July 2019. The study used 2 factorial randomized block design (RBD) methods consisting of 3 and 3 treatments with 4 replications, so that the total sample was 36 seedlings. Parameters observed were length of tendrils, number of leaves, number of root nodules, dry weight of root nodules, chlorophyll content, leaf N content and the degree of root infection. The data obtained were statistically analyzed by analysis of variance (ANOVA) with the test 5% significant difference. The results showed that the best single treatment of Mikoriza in this study was M2 with a dose of 40 g/seed, which affected in length of tendrils. Rhizobium sp application significantly affected the length of tendrils, number of leaves, number of nodules at the best single treatment is R2 with a dose of 0.6 ml/seed. Interaction of mycorrhizal and Rhizobium sp treatment showed a significant effect on M2R2 treatment, namely mycorrhizal application with a dose of 40 g/seed and Rhizobium sp application with a dose of 0.6 ml/seed had the best growth for several observational parameters.
METHOD FOR DRYING MAIZE POLLEN Indri Fariroh; Riza Yuli Rusdiana
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1583

Abstract

Pollen managements consisted of suitable harvest timing, pollen drying to a certain misturecontent, pollen viability testing, and pollen storage. Maize pollen was sensitive todesiccation. This experiment was aimed to determine preservation technique in reducingpollen water content while maintaining its viability. Maize variety which used in thisresearch was BIMA 3 as male line hybrid maize. Pollen viability testing used potassiumiodide (KI) 1%. This experiment used randomized block design with 3 factors and 2 replicates, i.e. boron (H3BO3) fertilizers (0 and 3 kg ha-1), drying techniques (MgCl2, silicagel, zeolite and preservation in air-cond room (18±1 °C; RH 43%), and drying periods (0,2, 4, 6 and 8 hours). The observation response of this experiment were viability and pollen weight changing. The result showed that there is no interaction between three factors to observation response, while drying technique and drying period combinations showed interactions to observation response. Pollen maize drying used silica gel for 4 hours was able to decline much pollen weight and maintain pollen viability better than other techniques.
Risiko Usahatani Mangga di Kecamatan Rembang Jawa Tengah Hendrik Johannes Nadapdap; Bobby Rachmat Saefudin
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1592

Abstract

Production fluctuation are an indication of production risk. Kragan District is one of the largest producers of mango in Rembang Regency. The production of mangoes produced by Kragan Subdistrict is still relatively low so this research aims to measure the level of risk, find out the factors that influence production and find out the factors that influence the risk of mango production in the Kragan Subdistrict. The object of this study was 31 mango farmers. The measure to calculate the level of risk is the standard deviation and the coefficient variation. The magnitude of the effect of the use of inputs on production risk is analyzed using multiple linear regression with the heteroscedastic method. The results of the calculation of production risk were analyzed using standard deviation and coefficient variation (KV) and having a standard deviation of 66.87 and the coefficient variation is 0.84, this shows that the high chance of production risk in conducting mango farming by 84 percent. Factors that significantly affect the production of mangoes in Kragan Subdistrict are the number of mango trees, organic fertilizers and inorganic fertilizers while the factors that significantly influence the risk of mango production are the number of trees and labor.  
VARIOUS FACTORS AFFECT THE QUALITY OF FERMENTED CASSAVA STARCH Bambang Triwiyono; Abdurachman Abdurachman; Aton Yulianto
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1607

Abstract

Fermented cassava starch is one of modified cassava starch products and used in many countries in several food products. The fresh extracted cassava starch is modified by a process of fermentation and sun drying by means the traditional methods. Several works have shown that fermentative process alters the starch granule, giving fermented starch its characteristics are different from those of the native cassava starch. The main difference between fermented cassava starch and native starch reside in the expansion property. Understanding the transformation of physico-chemical properties of cassava starch during fermentation is important for controlling the production processes. This discourse refers to the several works that intend to chemically show the expansion property of fermented cassava starch, considered a chemically and enzymatically modified product, with acidic characteristics, perforated granules and high expansion capacity.  Expansion is a natural characteristic of fermented cassava starch, defined as the growth rate of the dough during oven cooking, also referred to as expansion rate. The main aim of this discourse is to get a better understanding how to manage the production processes in order to achieve greater consistency in the quality of sour cassava starch.
Pengaruh Media Tanam Hidroponik terhadap Pertumbuhan Bayam (Amaranthus sp.) dan Selada (Lactuca sativa) Renna Eliana Warjoto; Tati Barus; Joshua Mulyawan
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1610

Abstract

As the human population rises, the demand for high nutritional foods, such as vegetables, also increases. However, agricultural land, especially in urban areas, is narrowing. Hydroponics can be one of the solutions to answer this problem. In addition to complete nutrition, hydroponic plants also require appropriate media for root attachment, water absorption, and aeration. Unfortunately, no studies have compared the growth of hydroponic plants using rockwool and sponge as affordable growing media. Therefore, this study aimed to determine the effect of local rockwool, imported rockwool, and sponge as growing media on the growth of spinach  (Amaranthus sp.) and lettuce  (Lactuca sativa) using Deep Flow Technique (DFT). This study used a Completely Randomized Design with three treatment groups, i.e., three different growing media, for spinach and lettuce. At the harvest period, the number of leaves on each plant was counted, the crown fresh-weight was balanced, and the chlorophyll content was determined. Plant height was also measured for spinach. The results showed that the three types of growing media had no significant effect on the number of leaves, plant height, crown fresh-weight, and chlorophyll content of spinach. However, the number of leaves  (25.25 ± 1.38) and the crown fresh-weight  (141.27 ±16.49 g) of lettuce grown on the local rockwool media were significantly higher than the number of leaves (17.00 ± 0.77) and the crown fresh-weight (81.48 ± 9.50 g) of lettuce planted on the sponge media. Other hydroponic growing media’s influences can be investigated for further research, with additional growth parameters such as crown dry- weight, root fresh- and dryweight, as well as the determination of plant phytochemical contents. Moreover, the correlation between nutritional formulations and the type of growing media can be further examined to obtain the most optimum spinach and lettuce growth.
Techno-Economic Evaluations on the Liquid Smoke Production from Coconut Shells (Case Study at CV Prima Rosandries, Jember) Agus Dharmawan; Ida Bagus Suryaningrat; Siswoyo Soekarno; Fiqih Faresa Firdaus
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1621

Abstract

This research aimed to evaluate techno-economic on the liquid smoke production from coconut shells in small business, CV Prima Rosandries, Jember. The technical analysis was determined by calculating work capacity and yield, which resulted in 2.04 kg/hour dan 49.22%, respectively. In the cost analysis, CV Prima Rosandries required IDR 187,250,000 for its first cost and IDR 94,860,000 for its annual-operation costs, also gained the annual incomes IDR 151,200,000 and the estimated-asset value (salvage) IDR 15,525,000. In the investment evaluation, parameters, such as NPV, AE, BCR, RoR, and PBP, indicated that the business was in feasible and profitable condition. To gained the break-even point, CV Prima Rosandries obliged to sell 11,047 products and costly IDR 88,377,581. In the sensitivity analysis, percentage changes in the investment factors resulted in 22.77% for the interest rate, 82.72% for the first cost, 26.58% for the annual cost, and -16.67% for the annual benefit.
PENGARUH SUHU DAN LAMA SIMPAN TERHADAP VIABILITAS POLEN PETUNIA (Petunia Inflata) Clement Panji; Maria Marina Herawati
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1626

Abstract

Petunia (P. inflata) is one of the most commonly cultivated ornamental plants because it has different flower sizes, and is easier to grow at various media and temperatures. Indonesia is one of the exporting Countries for Petunia hybrid seed. As one of the countries that provide hybrid seeds, the problem that often faced when making pollination is the availability of pollen with high viability because pollen viability can decrease/disappear within a specified period. The purpose of this research is to determine the effect of temperature and storage period on the viability of Petunia pollen and determine the best temperature and storage period to keep Petunia pollen. The design of this study uses a Randomized Block Design with Split Plot Design. The main plot consists of a storage period for seven days, 14 days, 21 days, and 28 days. The sup plots include storage temperature treatment at room temperature, 5˚C, -5˚C, and -15˚C, there repeated for three times. Data analysis using Analysis of Variant (ANOVA) and further testing using 5% Duncan Multiple Range Test (DMRT). The observed parameter consisted of the germination energy of pollen, pollen tube length, and colored pollen. The results showed that the lower temperatures could keep pollen viability for longer. The longer pollen stored, the viability will decrease further -15°C storage temperature can maintain pollen viability high up to 28 days of storage.
Sintesis Nanoselulosa dari Limbah Hasil Pertanian dengan Menggunakan Variasi Konsentrasi Asam Kurnia rimadhanti ningtyas; M. Muslihudin; Ira Novita Sari
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1631

Abstract

Limbah hasil pertanian merupakan sumber serat yang sangat besar. Limbah hasil pertanian banyak terdapat di Provinsi Lampung antara lain adalah jerami padi dan jagung. Pemanfaatan limbah pertanian merupakan salah satu solusi untuk mendapatkan material penghasil selulosa. Nanoselulosa merupakan salah satu pemanfaatan dari selulosa yang sangat bermanfaat bagi kehidupan. Nanoselulosa dapat dibagi menjadi 3 tipe utama yaitu selulosa nanokristal, selulosa nanofibril, dan nanoselulosa bakterial. Nanoselulosa memiliki diameter 1-100 nm dan panjang 500-2000 nm. Beberapa teknik dikembangkan untuk mengekstrak nanoselulosa dari selulosa diantaranya hidrolisis asam, hidrolisis enzimatis, dan proses mekanis. Adapun penggunaan masing-masing metode ekstraksi dimungkinkan menghasilkan tipe dan properti nanoselulosa yang berbeda. Penelitian ini bertujuan untuk melakukan sintesis nanoselulosa dari limbah hasil pertanian dengan berbagai konsentrasi asam untuk menghasilkan selulosa dengan ukuran nano terbaik berkisar antara 1 – 100 nm. Variasi konsentrasi H2SO4 yang digunakan yaitu 45%, 55%, dan 65%. Dari penelitian ini menghasilkan serbuk selulosa dengan ukuran nano yang bervariasi. Ukuran nanoselulosa yang dihasilkan berkisar antara 356,5 nm – 764,2 nm untuk limbah jerami padi, dan 422,6 nm – 634,0 nm untuk limbah kulit jagung
Analisis Peramalan Permintaan dan Pengendalian Persediaan Bahan Baku Pembantu pada Industri Gula (Studi Kasus PT. XYZ Lampung Utara) Dharma Agista pratama; Sri Hidayati; Erdi Suroso; Dewi Sartika
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1636

Abstract

Peramalan dan manajemen persedian merupakan salah satu factor penting dalam menentukan keberlanjutan usuatu usaha dalam industri.  Tujuan penelitian yaitu menganalisis metode peramalan penjualan yang paling sesuai untuk industri gula PT. XYZ dan menganalisis teknik pengendalian persediaan  dengan menggunakan metode Economic Order Quantitiy  (EOQ).  Terdapat 5 metode  peramalan yang digunakan yaitu : Linear Regression, Moving Average, Weighted Moving Average, Exponential Smoothing, dan exponential smoothing with trend.  Hasil analisis menunjukkan bahwa metode linear regression merupakan metode forecasting yang paling sesuai digunakan oleh industri gula PT. XYZ dengan nilai MAD, MSE, dan MAPE terkecil dibandingkan metode lainnya yaitu sebesar 7.195, 65.854.060, dan 10%, dengan hasil peramalan pada tahun 2019 sebesar 44.746 ton gula pasir.  Hasil analisis pengendalian persediaan menggunakan metode EOQ  terhadap bahan baku pembantu belerang dan soda kaustik .  Frekuensi pemesanan untuk belerang dilakukan  28 kali per tahun memilikitotal biaya persediaan sebesar Rp. 1.010.908.000 dan biaya penghematan sebesar Rp. 19.581.365.  dan pembantu causatic soda dengan frekuensi pemesanan 27 kali per tahun memiliki total biaya persediaan sebesar Rp. 922.241.500 dan biaya penghematan sebesar Rp. 17.840.930. 
Organic Fertilizer Application of Shrimp Pond Waste Sediment For Growth And Productivity (Lactuca Sativa Crispa L ) Adha Sabila Kifah; Agus Sutanto; Hening Widowati; Muhfahroyin Muhfahroyin
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1677

Abstract

Curly lettuce is one of the types of vegetables favoured by the community, but lately, organic vegetables are more in demand. One effort to get organic vegetables by using organic fertilizer during the planting period. Organic fertilizers come from nature, one of which is shrimp pond sediment whose utilization is not optimal. This study aims to determine the effect of shrimp pond sediment organic fertilizer application for growth and productivity of curly lettuce (Lactuca sativa cispa L). The study was conducted for 40 days, this type of research experiments using a Completely Randomized Design (CRD) with 4 treatments and 1 control and 6 replications. The parameters used include plant height and wet weight of curly lettuce plants. The main data is tabulated and analyzed using the SPSS 16.0 application which includes Multivariate Analysis of Variance (MANOVA). It was concluded that the organic fertilizer of shrimp pond sediment variation P1 (the composition of 100% shrimp pond sediment) provided the most optimal effect on the growth and productivity of curly lettuce (Lactuca sativa crispa L). Brochure validation results indicate that the brochure is very suitable to be used as a source of information about pond organic sediment fertilizer.

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