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reza
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INDONESIA
Buletin LOUPE (Laporan Umum Penelitian)
Published by Politeknik Pertanian Negeri Samarinda
ISSN : 14118548     EISSN : 25805274     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Buletin Loop of the Politeknik Pertanian Negeri Samarinda is one of the most active centres of scientific work in agriculture in the Samarinda. Problems are attacked from two distinct points of view: the economic, in which the object is to show how crops may be produced a little more cheaply than at present, and the scientific, the problem being investigated for the sake of the general principles it may bring out. Two sets of bulletins are therefore issued, the popular bulletin, intended for farmers, dealing mainly with local problems, and always from the local point of view, and the research bulletins. The popular bulletins are fully equal to any others in the United States, and much ahead of anything we publish here for farmers; in the series before us the subjects dealt with include land drainage, curing of seed corn, control of various weeds, draft-horse judging, a discussion of the methods of paying for milk at cheese factories, and so on. The research bulletins are the scientific papers of the staff; as usual in the Samarinda, each paper is published separately, and there is no common journal in which they all appear.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 343 Documents
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The Chemical Properties of a Mixing of Palm Kernel Shell Charcoal and Coconut Shell Charcoal in Making Briquettes hamka nurkaya; Diva Aprilia Yahya; Eva Nurmarini; Marwati
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3000

Abstract

This study aims to make briquettes from palm shells and coconut shells and determine the chemical properties of mixing palm shells and coconut shells. The study was conducted using the Complete Random Design (RAL) method by testing water content, ash content, volatile matter, and fixed carbon. The mixing treatment of palm shells and coconut shells according to the ratio, namely P1 = palm shell:coconut shell (100:0), P2 = palm shell:coconut shell (75:25), P3 = palm shell:coconut shell (50:50), P4 = palm shell:coconut shell (25:75), P5 = palm shell:coconut shell (0:100). The results showed that the ratio of a mixture of palm shell charcoal and coconut shell charcoal had no significant effect on water content, ash content, and fixed carbon. However, differences in significance occur in volatile matter. P2, P3, P4, and P5 have met SNI standard No.1-6235-2000, but P1 has not met SNI standard No.1-6235-2000.
Effect of Differences in the Composition of Growing Media on the Growth of White Oyster Mushroom Mycelium (Pleurotus ostreatus) Elisa Herawati; Dwi Septi Amalia; Emi Malaysia; Agustina Murniyati; Fathiah
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3002

Abstract

The use of the main growth medium in the form of wood sawdust in mushroom domestication is still higher than that of other organic materials, even though its availability is limited, so efforts need to be made to find a growth medium composition that minimizes the percentage of sawdust use. The purpose of this study was to determine the comparison of treatment 1 (80% teak sawdust, 10% bran, 5% tapioca flour, and 5% agricultural lime) with treatment 2 (70% teak sawdust, 15% bran, 10% tapioca flour, and 5% agricultural lime) on the percentage of growth and mycelium growth of white oyster mushrooms.  Composting of growing media was carried out for 5 days, then baglog making was carried out, after which the baglog was sterilized for 4 hours. After sterilization, the baglog was cooled and inoculated. After inoculation, the baglog is incubated to grow mycelium. Then, after 15 days, data collection and calculation were carried out. The parameters measured were the percentage of growth and mycelium growth of white oyster mushrooms in baglogs. Results showed that the percentage of growth and mycelial growth of white oyster mushrooms in treatment 1 is better than in treatment 2. Reducing the percentage of the main growing medium of teak sawdust and adding the percentage of additional growing media of bran and tapioca flour has a negative impact on the number of baglogs that grow mycelium (percentage of growth) and the growth of white oyster mushroom mycelium. This means that reducing the main media of teak sawdust and adding additional media is not the right growing media composition for domestication of white oyster mushrooms, so it cannot be used as an alternative growing media composition to reduce the use of wood sawdust.
Analysis of Productivity and Labor Requirements of Palm Oil (Elaeis guineensis Jacq.) Harvesting at Afdeling 4 in PT. Alam Jaya Persada Wartomo; Novi Indah Lestari; Sri Ngapiyatun; Humairo Aziza; Rusli Anwar; Puspita
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3005

Abstract

In facing increasingly competitive competition, every company needs quality human resources (HR) who have high competence. The challenges that are often faced by every company are the demand for production, which is quite high, and the quality of the products produced. Based on this, human resource management is needed according to the needs of the company. This study aims to determine the characteristics of harvesting employees, the productivity of harvesting employees, and the number of effective oil palm harvesting labor requirements in Afdeling 4 at PT. Alam Jaya Persada.  This study uses two data sources, namely primary data consisting of interviews, direct observation, and documentation, as well as secondary data consisting of company documents and literature related to research activities. Respondents in this study amounted to 22 harvest employees who were determined using saturated sampling techniques. Research data collection was carried out through direct observation, interviews, and collecting all documents related to research. Data analysis used in managing research data is descriptive analysis. Based on the characteristics of harvest employees, 22 people are all male with a percentage of 100%; the average education of employees, namely elementary school (SD), is 10 employees with a percentage of 45%; based on an average age of 31–40 years, namely 9 employees with a percentage of 41%; and based on the average length of work of 1-2 years, namely 11 employees with a percentage of 50%. The results showed that of the 22 harvesting employees of Afdeling 4, the average productivity of harvesting employees was 163 beds/HK, and the basis set by the company was 120 beds/HK. This shows that Afdeling 4 employees can be said to be very productive. The calculation of the need for effective employees in Afdeling 4 is 18 harvesting employees with an area of 728 ha, but the number of employees in the field is 22 or has exceeded the labor requirements for the area of the land.
Level of Attack of Ganoderma boninense on Palm Oil Plant in Different Topographies Sri Ngapiyatun; Satriady Ramdhani; Wartomo; Humairo Aziza
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3006

Abstract

This research was motivated by the stem rot disease of Ganoderma boninense.  Symptoms of Ganoderma disease attack young and old plants aged 10-25 years, as a result of this attack, the production of oil palm fruit bunches decreases. This research aims to determine the symptoms of Ganoderma attacks on oil palm plants, and determine the highest level of Ganoderma attacks in different topography, namely hilly, flat and swampy. This research uses samples of oil palm plants by determining saturated sampling, namely taking samples of oil palm plants in all topography, including hilly, flat and swampy, with a total of 15 blocks in Division 4, with 5 blocks in each topography. Data collection uses primary and secondary data. The data analysis used was by calculating the percentage of attacks and using a completely randomized design (RAL) test. The research results show that the oil palm plants at PT. Rea Kaltim Plantations, Estate Sentekan Main in Division 4 has symptoms of Ganoderma boninense attacks. The highest percentage of Ganoderma boninense attacks is found in the swamp topography (17.08%). Based on ANOVA test, the topography gives a significant effect on the percentage of Ganoderma attacks.
Liquid Smoke Yield Grade 3, Grade 2 and Grade 1 from Five Different Types of Plants Ita Merni; Aldo Kurniawan; Andi Yusuf
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3013

Abstract

This research was motivated by the lack of optimal use of leaves in forest plants, while there are many types of leaves in the forest. One use of leaves is to use them as raw material for making liquid smoke. This research was conducted to determine the yield of liquid smoke on forest plant species from their leaves. The research method used is the pyrolysis method with indirect combustion. This research was carried out by treating forest plant raw materials, namely kerai paying leaves (Filicium decipiens L.), bungur leaves (Lagerstroemia speciosa), mahogany leaves (Swietenia macrophylla King), teak leaves (Tectona grandis) and sungkai leaves (Peronema canecens Jack). The results of the research showed that the results of liquid smoke from the 5 types of plant leaves, namely sungkai leaves, had the highest grade 3 yield of 23.83% and the lowest grade 3 yield, namely mahogany leaves, of 17.81%. In grade 2 sungkai leaves the highest percentage was 21.12% and mahogany leaves had the lowest yield with a percentage of 16.18%. Meanwhile, in grade 1, sungkai leaves have the highest yield percentage of 19.33% and mahogany leaves have the lowest yield, namely 15.03%.
Level of Adoption of Innovation in Terrarium Cultivation among the Zoomer Generation Andi Lelanovita Sardianti; muhamad yazid bustomi; pandhu rochman suosa putra; Rossy Mirasari; sri marlendi
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3018

Abstract

The increasingly rapid development of technology provides changes in several aspects. Technological advances in this era apart from providing many benefits also provide challenges. One project that can accommodate the zoomer generation in following technological developments is the use of terrarium cultivation. Terrariums fulfill the 3 R principles, namely Reduce, Reuse, Recycle. By planting a terrarium, it means saving water, saving land, and reducing air pollution (Reduce), also reusing unused containers such as used jars (Reuse), and using animal waste as compost (Recycle). The facts in the field are that students as the zoomer generation have received training and socialization on terrarium cultivation, but the level of adoption (acceptance) of students regarding socialization and training on terrarium cultivation varies, therefore a study was carried out to what extent the level of adoption of the results of training and socialization in the application of cultivation terrarium for the zoomer generation. The data collection method used was a survey method with research subjects of the zoomer generation, namely 54 active students. The data collected is categorized tabulatedly and then analyzed descriptively qualitatively. This data analysis uses measurements of observation indicators using a "rating scale". The results of the research show that the level of adoption of zoomer generation innovations in terrarium cultivation, if seen from the latest average, the adoption level is in the very high category. Differences in the level of adoption of terrarium cultivation innovations in the zoomer generation with a very high level of knowledge, a very high level of persuasion/interest, a very high level of decision, a very high level of implementation and a very high level of confirmation. If you look at the overall score, it is in the very high category.
Liquid Organic Fertilizer From Biogas Liquid Waste with The Addition of Rabbit Urine, Monosodium Glutamate and Water Hyacinth Anis Aziza Zumroturrida; rosita dwityaningsih; Dodi Satriawan; Oto Prasadi
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3021

Abstract

Biogas liquid waste has the potential to be used as a base material for liquid organic fertilizer due to the potential for its fairly high organic compund content. Rabbit urine and water hyacinth are known to contain material that are used for plants.MSG ia a cooking spice that contains sodium salt (Na) which is bound to amino acids in the form of glutamate, with Na element being able to improve plants that deficient in potassium (K).The aim of this research is to process liquid biogas waste into liquid organic fertilizer (POC) by adding water hyacinth, rabbit urine, and MSG using an anaerobic process. The results of this research showed that the control POC contained 0.067% N, 0.27% P2O5 and 0.023% K2O. POC A 0.056% N, 0.27% P2O5 and 0.32% K2O. POC B 0.022% N, 0.32% P2O5 and 0.11% K2O.
Utilization of the DJI Phantom 3 Advance Quadcopter Type Drone Vehicle for Area Mapping of the Samarinda State Agricultural Polytechnic Campus Dyah Widyasasi; Dwi Agung Pramono; Hasanudin Hasanudin; Dwinita Aquastini; Emi Malaysia; Rudi Djatmiko
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3029

Abstract

This research is motivated by the fact that currently remote sensing technology continues to develop, both in terms of data collection and processing. This is characterized by the existence of data collection techniques using unmanned aerial vehicles for aerial photo mapping. The advantage of using this technology is that it is effective and efficient both in terms of time and human resources for mapping in areas that are not too large. Another advantage is that it can produce clearer photos, because the plane's flying height is below 400 meters above ground level so that during the shooting process there is no cloud interference. The aim of this research is to create an aerial photo map at the Samarinda State Agricultural Polytechnic, validate objects in aerial photos and in the field, and provide information about the area, boundaries and topography of the Samarinda State Agricultural Polytechnic campus area. The implementation of activities and research objects is the Samarinda State Agricultural Polytechnic campus area. This research uses a small format aerial photo mapping method using a Quadcopter, making it easier to determine where to start taking off and landing. With a Quadcopter vehicle, grounding problems are no longer an obstacle. The research results showed that photography carried out with a Quadcopter at a height of 200 m above the ground produced an area of 28.17 Ha and a spatial resolution of 8.40 cm/pixel. The validation results in aerial photos and in the field using drones have a small difference between 0-4 cm with an average of 1.625 cm/photo. From the digitization results of campus objects, there are 30 objects on campus with a total area of 2.67 Ha. As for the topography results in the campus area, the highest point is 107.5 meters above sea level and the lowest point is 60 meters above sea level.
Surface Temperature Distribution Through Vegetation Density and Building growth in Makassar City Andrew Stefano; Sri Endayani
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3065

Abstract

The high temperature phenomenon is an event where the temperature in the city area is hotter than the surrounding area. Indonesia is located in a tropical climate, so several cities have the potential for temperatures to rise during the dry season. The city of Makassar is one of the cities with a high level of urbanization. With residents' enthusiasm for looking for work in the city, the land around the city has been converted into built-up land. Conditions like this make the existence of green open space uneven. This research aims is to determine the distribution of high-temperature phenomena through a spatial approach using remote sensing technology and geographic information systems. This research uses Landsat imagery for 2022 with the Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI), and Normalized Difference Built-up Index (NDBI) methods. The results of the research explain that the large number of existing buildings has caused an increase in urban temperatures, from an initial temperature of 29.93 oC to 39.51 oC.The increase in temperature occurs throughout the year, with the hottest peak temperature reaching 37 oC on April 15, 2022. The condition of vegetation density decreased by 0.05, starting from 0.66 in 2012 to 0.61 in 2022; this is in line with the increase in building area to 15,368 ha in 2022. This condition makes Makassar City one of the hottest cities in Indonesia. With an increasingly high need for built-up land and high mobility, it has the potential to accelerate temperature changes, so it is necessary to provide green open space in densely built areas by creating public open spaces. open private.
Growth of Rubber Seeds (Hevea brasiliensis Muell.Arg) from Sleeping Eye Stum by Applying Organic Fertilizer Bulk and Liquid Herbal Waste Fahrizal Fahrizal; Rusli Anwar; Jamaluddin; Muhamad Yazid Bustomi
Jurnal Loupe Vol 20 No 01 (2024): June 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i01.3066

Abstract

The organic fertilizer derived from herbal medicine waste in both bulk and liquid form is rich in macro and micro nutrients as well as decomposing microbes and probiotic bacteria needed to improve soil chemical properties.  These fertilisers can be used to obtain better growth of rubber seedlings, especially rubber seedlings of sleeping eye origin. The objectives of this study was(1) to determine the effect of organic fertilizer and liquid bulk herbs Against Waste growth and (2) to know nutrient uptake of N, P, and K seedling stum Sleep eye. The study was conducted in a 4 x 3 factorial experiment arranged in a completely randomized design (CRD) with five replications. The first factor is the concentration of organic liquid fertilizer consisting of four in the standard: h0 = 0 ml L-1 of air (0%); h1 = 2 ml L-1 air (0.2%); h2 = 4ml L-1 air (0.4%); h3 = 6ml L-1 air (0.6%). The second factor is the dose of organic fertilizer consists of three levels: (b0 = 0 mg ha-1: b1 = 5 mg ha-1: b2 = 10 Mg ha-1). Data were analyzed with Analysis of Variant and continued with Duncan's Multiple Range Test 5% level. The results showed that the dosage of bulk organic fertilizers was significantly different at the level of 5% of the uptake of nitrogen, other observations were not significantly different. While the treatment of liquid organic fertilizer was highly significantly different at the level of 1% of nitrogen absorption, other observations were not significantly different. No real effect on their interaction in all observations. The treatment dose of organic fertilizer 5 Mg ha-1 and the treatment of liquid organic fertilizer 4 ml L-1 provided the highest results in leaf area of 586.46 cm2 per plant compared to the control treatment of 181.06 cm2 per plant. The treatment of bulk organic fertilizer dose and liquid organic fertilizer concentration predicted P2O5 nutrient uptake per rubber plant did not show significant differences. While the treatment of doses of bulk organic fertilizer and concentrations of liquid organic fertilizer is thought to be potassium nutrient uptake per rubber plant does not show significant differences, but can be seen from the growth of diameter, number of leaves, and leaf area.

Page 17 of 35 | Total Record : 343

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