Jurnal Online Politeknik Negeri Lampung
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Analysis Of The Business Of Abond Cattle Production In The Advanced Prosperous Livestock Production Cooperative (Kpt-Ms) In Village Of Lampung Selatan Regency
Get PDFMaju Prosperous Livestock Production Cooperative (KPT-MS) is a cooperative engaged in livestock and animal health. Shredded is one type of preserved processed food ingredients derived from meat. Meat is one of the important food ingredients in meeting nutritional needs and has a fairly high protein content. The objectives in processing processed meat products are to extend the shelf life, change the product according to the wishes, increase the nutritional content of the product, and increase the types of processed products. The purpose of this final project is to find out the Processing Process of Shredded Beef Products and Business Analysis at KPT-MS. The research was carried out for ± 4 months, namely in February - June 2023. From the results of Observation of the Shredded Beef Processing Process carried out at KPT-MS, starting from meat preparation, cooking, preparation of papaya filling ingredients, preparation of onion filling ingredients, reduction of oil, mixing all materials and packaging. The results of Business Analysis Calculations obtained R/C values of 1.4 and Production BEP of 80 Pcs
Uji Sifat Campuran Herbisida Berbahan Aktif 2,4-D Dimetil Amina+Isopropilamina Glifosat terhadap Gulma Ottochloa nodosa, Cyperus rotundus, dan Praxelis clematidea
Get PDFChemical weed control in cultivated plants generally uses one herbicide active ingredient, but its effectiveness in controlling weeds can be increased by mixing herbicides. Mixing of more than 1 active ingredient can be additive, synergistic, and antagonistic with other active ingredients. Therefore, it is necessary to study the combination of herbicide active ingredients that will be used. The aim of the study was to determine the herbicide properties of a mixed 2,4-D dimethyl amine + Isopropylamine Glyphosate applied to the weeds Ottochloa nodosa, Cyperus rotundus, and Praxelis clematidea whether additive, synergistic, or antagonistic. The research was carried out from December 2020 to February 2021, at the Integrated Field Greenhouse and Weed Science Laboratory, Faculty of Agriculture, University of Lampung. Using a Randomized Block Experiment Design (RAK) with treatment consisting of the herbicide Goldenstar with a single active ingredient 2,4- D dimethyl amine 100g/l with doses of active ingredients consisting of 25, 50, 100, and 200 g/ha, Isopropylamine Glyphosate 300 g/l with doses of active ingredients consisting of 75, 150, 300, and 600, g/ha and herbicides Goldenstar active ingredient mixture of 2,4-D dimethyl Amine + Isopropylamine Glyphosate 100/300 g/l with a dose of active ingredients consisting of 50, 100, 200, and 400 g/ha and control treatment (without herbicides). The target weeds included Otthocloa nososa, Cyperus rotundus, and Praxelis clematidea. Analysis to test the nature of herbicide mixture using the MSM (Multiplicative Survival Model) test. Furthermore, the co-toxicity value was calculated by comparing the expected LD50 and treatment LD50 values. The results showed that mixing herbicide with the active ingredient 2,4-D dimethyl Amine + Isopropylamine Glyphosate 100/300 g/l on the dry weight accumulation of the weeds Ottochloa nodosa, Cyperus rotundus, and Praxelis clematidea had an LD50 of 1.8424 g/ha and an LD50 of treatment. The expectation is 4.8270 g/ha with a co-toxicity value of 2.6 (co-toxicity value > 1) so that the herbicide mixture with the active ingredient 2,4-D dimethyl Amine + Isopropylamine Glyphosate 100/300 g/l is synergistic.
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Keywords : 2,4-D dimethyl amine, Isopropylamine glyphosate, LD50, MSM (Multiplicative Survival Model)
ABSTRAK
Pengendalian gulma pada tanaman budidaya secara kimiawi umumnya menggunakan satu bahan aktif herbisida namun dapat ditingkatkan lagi kefektifannya dalam mengendalikan gulma melalui pencampuran herbisida. Pencampuran lebih dari 1 bahan aktif dapat bersifat aditif, sinergis, dan antagonis dengan bahan aktif lainya. Oleh karena itu, perlu pengkajian mengenai kombinasi bahan aktif herbisida yang akan digunakan. Penelitian bertujuan untuk mengetahui sifat herbisida campuran 2,4-D dimetil amina + Isopropilamina Glifosat yang diaplikasikan pada gulma Ottochloa nodosa, Cyperus rotundus,dan Praxelis clematidea apakah aditif, sinergis, atau antagonis. Penelitian dilaksanakan pada bulan Desember tahun 2020 sampai Februari 2021, di Rumah kaca Lapangan Terpadu dan Laboratorium Ilmu Gulma, Fakultas Pertanian, Universitas Lampung.dengan menggunakan Rancangan Percobaan Acak Kelompok (RAK) dengan perlakuan yang terdiri atas herbisida Goldenstar berbahan aktif tunggal 2,4-D dimetil Amina 100g/l dengan dosis bahan aktif terdiri dari 25, 50, 100, dan 200 g/ha, Isopropilamina Glifosat 300 g/l dengan dosis bahan aktif terdiri dari 75, 150, 300, dan 600, g/ha dan herbisida Goldenstar berbahan aktif campuran 2,4-D dimetil Amina + Isopropilamina Glifosat 100/300 g/l dengan dosis bahan aktif terdiri dari 50, 100, 200, dan 400 g/ha serta perlakuan kontrol (tanpa herbisida). Gulma sasaran meliputi gulma Otthocloa nososa, Cyperus rotundus, dan Praxelis clematidea. Analisis untuk menguji sifat campuran herbisida menggunakan uji MSM (Multiplicative Survival Model). Selanjutnya dilakukan perhitungan nilai ko-toksisitas dengan membandingkan nilai LD50 harapan dan LD50 perlakuan. Hasil Penelitian menunjukkan bahwa pencampuran herbisida berbahan aktif 2,4-D dimetil Amina + Isopropilamina Glifosat 100/300 g/l terhadap akumulasi bobot kering gulma Ottochloa nodosa, Cyperus rotundus, dan Praxelis clematidea memiliki LD50 perlakuan sebesar 1,8424 g/ha dan LD50 harapan 4,8270 g/ha dengan nilai ko-toksisitas sebesar 2,6 (nilai ko-toksisitas > 1) sehingga campuran herbisida berbahan aktif 2,4-D dimetil Amina + Isopropilamina Glifosat 100/300 g/l bersifat sinergis.
Kata kunci : 2,4-D dimetil amina, Isopropilamina glifosat, LD50, MSM (Multiplicative Survival Model
Perubahan Produksi dan Perdagangan Negara-negara Produsen Lada Terbesar di Dunia dan Implikasinya bagi Indonesia
Get PDFThe production and trade of agricultural products in global markets will undergo changes due to shifts in demand and production patterns. Although demand for pepper is likely to remain strong, pepper production is prone to fluctuations due to various factors, particularly natural ones. This study aims to predict future changes in the production and trade of the world's largest pepper-producing countries and identify macro-level improvements needed to enhance the pepper production and trade system in Indonesia. Using time-series analysis (i.e., double exponential smoothing) with FAOSTAT data from 1961-2020, this study predicts that the competitive landscape among pepper-producing countries is likely to change over the next 15 years. Some producing countries may overtake others in terms of pepper production and trade. Consequently, Indonesia needs to respond to these changes by implementing various sectoral-level improvements, such as investing in sustainable development, improving infrastructure, and addressing political factors, in addition to improving farmer-level practices.The production and trade of agricultural products in global markets will undergo changes due to shifts in demand and production patterns. Although demand for pepper is likely to remain strong, pepper production is prone to fluctuations due to various factors, particularly natural ones. This study aims to predict future changes in the production and trade of the world's largest pepper-producing countries and identify macro-level improvements needed to enhance the pepper production and trade system in Indonesia. Using time-series analysis (i.e., double exponential smoothing) with FAOSTAT data from 1961-2020, this study predicts that the competitive landscape among pepper-producing countries is likely to change over the next 15 years. Some producing countries may overtake others in terms of pepper production and trade. Consequently, Indonesia needs to respond to these changes by implementing various sectoral-level improvements, such as investing in sustainable development, improving infrastructure, and addressing political factors, in addition to improving farmer-level practices
Estimasi dan Validasi Total Digestible Nutrient Hijauan Pakan dari Komposisi Kimia Pakan
Get PDFThis study aims to estimate and validate the accuracy of estimated Total Digestible Nutrient (TDN) content in forages based on the chemical composition of feed. Data on nutrient composition for estimates were obtained from the BR-CORTE database consisting of 86 types of forages and primary data from observations consisting of 19 types of forages. Analysis data is used Pearson correlation, multiple linear regression, determination coefficient (R2), and root mean square error (RMSE) for estimation models, variance test (ANOVA), and T-test for validation. The results showed that forage TDN had a negative correlation with Neutral Detergent Fibre (NDF) (P <0.01) and lignin (P <0.05), but was positively correlated with Non-Fibre Carbohydrate (NFC) (P <0.01), Ether Extract (EE) and Crude Protein (CP) (P<0.01). Thus, the TDN value can be estimated from the chemical composition in the feed. The regression equation that will be used to estimate forage TDN content is TDN = 0.482 NDF + 1.538 EE + 0.699 NFC + 0.718 CP (R2=0.994). Then, this equation is validated and compared to the Hartadi’s and Wardeh’s equations. The results of the T-test showed that the TDN value estimated is non significantly different with TDN Hartadi for cattle (P>0.05). It concluded TDN value of local forage can be estimated based on this estimation models.This study aims to estimate and validate the accuracy of estimated Total Digestible Nutrient (TDN) content in forages based on the chemical composition of feed. Data on nutrient composition for estimates were obtained from the BR-CORTE database consisting of 86 types of forages and primary data from observations consisting of 19 types of forages. Analysis data is used Pearson correlation, multiple linear regression, determination coefficient (R2), and root mean square error (RMSE) for estimation models, variance test (ANOVA), and T-test for validation. The results showed that forage TDN had a negative correlation with Neutral Detergent Fibre (NDF) (P <0.01) and lignin (P <0.05), but was positively correlated with Non-Fibre Carbohydrate (NFC) (P <0.01), Ether Extract (EE) and Crude Protein (CP) (P<0.01). Thus, the TDN value can be estimated from the chemical composition in the feed. The regression equation that will be used to estimate forage TDN content is TDN = 0.482 NDF + 1.538 EE + 0.699 NFC + 0.718 CP (R2=0.994). Then, this equation is validated and compared to the Hartadi’s and Wardeh’s equations. The results of the T-test showed that the TDN value estimated is non significantly different with TDN Hartadi for cattle (P>0.05). It concluded TDN value of local forage can be estimated based on this estimation models
Application of Multiple Fertilizers and White KNO3 to Increase Pepper Plant Growth
Get PDFPepper production was decresed, it is caused by quality varieties and less intensive maintenance. Furthermore, price of pepper is unstable. Fertiliation is one of the efforts to increase pepper production. This study aims to obtain the right dose of compound fertilizer (NPK) and white KNO3 to increase production of pepper plants. The experiment using 5 combinations of fertilization : 0,5 g NPK (control), 1 kg NPK combined with 2% white KNO3 each plant, 1,3 kg NPK combined with 2% white KNO3 each plant 1,6 kg NPK combined with 2% white KNO3 each plant. Variables observed for cultivated pepper plant: panicle length (cm), number of panicles, number of segment, and number of branches. Application of 1,3 kg NPK combined with 2% white KNO3 each plant visualized the best of panicle length (4,38 cm), number of panicles (34), number of segment (49,8), and number of branches (17,2)
Comparison study of vines rope and bracket pot systems on melon ginsen and ougan makuwauri
Get PDFMelon production in Indonesia is increasing along with the increasing population and also affects to the seeds as planting material. This research was conducted to determine the effect of the planting system on the growth and productivity of melon seeds and to obtain an oriental melon line with striped fruit and a sweet taste. The materials used in this study were melon seeds from a cross between ginsen makuwauri (GM) and ougan makuwauri (OM) first generation (F1). The research design used was a Randomized Block Design (RCBD) with a single factor, namely the cropping system. Each greenhouse has a different treatment, namely, at GH 1 (vines) and GH 2 (bracket pot), there are six replications to get 12 experimental units. Observational data were analyzed for variance and the Least Significant Difference (LSD) test at 5% and 1% levels. Observations were made on quantitative and qualitative characters. The environmental quantitative observation variables were temperature and humidity, while in melon plants, namely tendril length, number of leaves, stem diameter, leaf width, leaf length, petiole length, flowering age, harvest age, fruit weight, total dissolved solids, fruit length, a width of fruit, thickness of fruit flesh, weight of seeds per fruit, and number of seeds per fruit. Qualitative observation variables were leaf shape, leaf color, leaf lobe shape, petiole length, petiole color, flower sex, fruit shape, dominant fruit skin color, secondary skin color pattern, and seed shape. Based on statistical analysis, the results showed that the environment and the bracket pot planting system in GH 2 had a very significant effect on the length of the plant tendrils, while the environment and the planting of the vines system in GH 1 had a significant effect on fruit width and seed weight
Respons Pertumbuhan Jagung Manis Terhadap Pemberian Pupuk Kalium dan Arang Sekam
Get PDFFertilization is one way to improve fertility to increase the growth of sweet corn. One of the essential nutrients needed by sweet corn is potassium. Potassium can be obtained from inorganic fertilizers such as KCl or organic fertilizers, such as husk ash. The purpose of this study was to determine the best potassium fertilizer dose to increase the growth of sweet corn. The treatment was arranged factorially consisting of 2 factors and using a randomized block design. The first factor are the dose of potassium fertilizer (K) which consists of: 4 levels of dose: 0 kg / ha KCl (K0), 50 kg / ha KCl (K1), 100 kg / ha KCl, and 150 kg / ha KCl (K3). The second factor is the dose of husk ash, which is 0 tons / ha husk ash (S0) and 1 ton / ha husk ash (S1), so there are 8 treatment combinations. Each treatment combination was repeated three times, so that there were 24 experimental unit plots. The variables observed included: plant height, number of leaves, and stem diameter. Potassium fertilizer application is carried out once at the age of 1 week after planting and application of ash husk 1 week before planting. The data obtained were then analyzed and then continued with Duncan's Multiple Range Test (DMRT) at the level of α = 5%. The results showed that there were no interactions between potassium fertilizer and husk ash at the height, number of leaves, and diameter of sweet corn plants. Potassium fertilizer has a significant effect on increasing plant height and stem diameter of sweet corn plants at 2, 3, 4, 5, 6 and 7 MST. But there is no significant effect on the number of sweet corn leaves. Husk ash application has no significant effect on all observed variables. Application of potassium fertilizer at a dose of 150 kg / ha is able to produce the best growth of sweet corn by increasing plant height and stem diameter. Keywords : Sweet Corn, Potassium, Husk As
Desain Sistem Seleksi Proposal Program Kreativitas Mahasiswa (PKM) Politeknik Negeri Lampung
Get PDFThe utilization of digitalization-based information technology is currently being developed in all units in an agency. State Polytechnic of Lampung (Polinela) is one of the tertiary institutions that continuously improve the system towards digitalization. One of the most exciting things to develop is the Student Creativity Program Proposal Selection System (PKM). PKM is one of the programs launched by the Directorate General of Higher Education, this activity is an effort to facilitate, foster, and realize students' creative and innovative ideas that can have a positive impact on improving student achievement and university achievement. Based on observations and interviews with the committee directly involved in the Polinela level selection activities, in the last 3 years, the number of students who compiled the proposal has increased, and the selection system for the PKM proposal within the Polinela environment is still being done offline, this is felt by the committee for less efficient and effective in the collection of plans in the form of hardcopy and softcopy sent by email. The process of monitoring the selection of PKM proposal evaluation activities has not been optimal, therefore it is necessary to build a digitizing system based on PKM selection that can improve the performance of this process. The method to be made is tailored to the needs of end-users so that it can accelerate the process of selecting PKM proposals. The advantage of the system to be built is that all plans are uploaded online and reviewers can directly assess them online. This System Development uses the Agile Model, a database that is built using the Normalization Technique by testing the system using black-box testing. Keywords: Agile Model, black box testing, Normalization Technique, PK
Pengembangan Media Komik sebagai Alternatif Bahan Ajar Mata Pelajaran Ilmu Pengetahuan Sosial untuk Meningkatkan Minat Belajar Siswa Sekolah Dasar (SD) Kabupaten Sambas
Get PDFThis study aims to yield teaching materials product such as social science comic for third grades students in primary school in helping to implement fun learning methods.The method used is research and development methods.The subject of the study was the third grade students of SDN 6 Sambas Regency. In this study, explained in detail about the steps taken in making comics, starting from pre-production, production, to post-production. Making comic media refers to the stages of Borg and Gell development consisting of preliminary study, development, field testing, and product dissemination and socialization stages.This product has an output that is formed in printed comic, which is made with clip studio paint ex ver.1.7.3 and coreldraw x7.The feasibility of comic media for learning is reviewed based on the assessment of media experts is 4.10 (suitability of the curriculum, correctness of the content and method of presentation of material including good criteria), expert material is 3.90 (considerations of production, visual design, and technical quality including good criteria) and assessment of students at the field test stage of 4.10 (including good criteria), wider field test 4.25 (including very good criteria), and operational tests 4.13 (including good criteria). This the comic learning products from the development of textbooks are worth using because based on the stipulation that media products are said to be feasible if the results of the assessment are minimal on good criteria Keywords : Comic of Social Sciences, Learning Media, Class III Elementary Schoo
Uji Eksperimental Kuat Tekan Mortar Paving Block dengan Bahan Limbah Substitusi Agregat Halus dan Semen
Get PDFOffsetting the high availability of by-products from the coal burning industry as a PLTU power plant in the form of waste, various efforts have been made by researchers and the government to manage environmentally sound waste management businesses. One of the efforts made by researchers is to improve the category of B3 waste (dangerous, toxic) into environmentally friendly waste, namely by the method of waste treatment. The research will be carried out at the Soil and Water Engineering Laboratory and the Agricultural Mechanization Laboratory of Lampung State Polytechnic for 6 months. The treatment that will be applied in this study is use. bottom ash or bottom ash which is used as a fine aggregate substitute for 100% mixture of paving block making for sand volume. Variation in the use of fly ash or fly ash as part of cement replacement material in a mixture of 30%, 40% and 50%, 100% of the volume of cement. The testing period is 7, 14 days. Then a press test is performed using a CTM (compresion testing machine) tool. The test results compared with the standard physical properties according to SNI 03-0691-1996 were obtained from the average sample Bottom Ash 30% compressive strength at 7 days: 7.2 Mpa, 14 days: 10.3 Mpa, Sample B at 7 days of age: 6 , 8 Mpa, 14 days: 9.5 Mpa. Sample C at 7 days: 5.8 MPa, 14 days: 8.4 MPa. Sample D at the age of 7 days: 1 Mpa, 14 days: 1.4 Mpa, with recommendations for samples of mixtures Bottom 30%, 20% and 10% including the category III SNI 03-0691-1996 and can be used as material for paving block construction while sample bottom Ash 0% does not enter katogari SNI 03-0691-1996. Keywords: Paving block, fly ash, bottom ash, Compressive Strengt