cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Fani Ardiani
Contact Email
editor.joa.itscience@gmail.com
Phone
+628177776163
Journal Mail Official
intanmaulina1509@gmail.com
Editorial Address
https://jurnal.itscience.org/index.php/joa/contactus
Location
Unknown,
Unknown
INDONESIA
Journal of Agriculture (JoA)
Published by Information Technology and Science
ISSN : -     EISSN : 28292421     DOI : 10.47709/joa
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
JoA aims publish primary research articles of current research topics from all over the world, not simultaneously submitted to nor previously published in other scientific or technical journals. General review and short communication articles will not be accepted. The journal maintains strict standards of content, presentation, and reviewing. SCOPE The journal will consider primary research papers from any source if they make an original contribution to the experimental or theoretical understanding and application of theories and methodologies of some aspects of agricultural science including: Soil science; Climate science; Agronomy; Agroforestry; Plant breeding; Biotechnology; Plant disease and protection; Farming system; Postharvest technology; Socio-economics of agriculture; Human research of agriculture JoA is published by Information Technology and Science (ITScience), a Research Institute in Medan, North Sumatra, Indonesia.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 217 Documents
 11   12   13   14   15 
LINES PLAN OF PURSE SEINE SHIP IN SOUTH SULAWESI Alham, Irawan; Lendri, Lendri
Journal of Agriculture Vol. 1 No. 03 (2022): Research Articles, November 2022
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v1i03.2482

Abstract

Vessels used for purse seine fishing gear operations in South Sulawesi are made of teak wood (Tectona grandis), spinach with a length of 13 – 25 m, a width of 3.30 – 5.87 m and a height of 1 – 1.8 m. Based on the classification of durability and strength of wooden ships, types of teak and spinach are classified as durable class I and strong class II. Good wood for ship building is one that has a durable class I – II and a strong class I – II (Wibowo 1981 in Marlin, 2008). This means that vessels operating purse seine fishing gear in South Sulawesi are well used because they have relatively large durability and strength. Purse seine vessels in this area have a tonnage between 10 – 35 GT. GT calculation based on Director General of PERLA No, PY.67/1/16-02. The main engine used consists of two units of Yanmar brand, Mitsubishi and Yun chai with a power of 20, 27 or 30 PK. In addition, it is also equipped with a 15 PK Jian Dong brand roller machine
ANALYSIS OF NEEDS AND CONSTRAINTS IN THE FARMER GROUP EMPOWERMENT PROGRAM IN THE USE OF ORGANIC FERTILIZERS IN KALISAT DISTRICT, JEMBER REGENCY Argarisma, Feni; Kustiari, Tanti; Muksin, Muksin
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2494

Abstract

Procurement of organic fertilizers is one of the efforts that can be made to restore soil organic matter to increase the production value of the agricultural sector in Jember Regency. Issues about the environment and low soil organic nutrient content also occur in Jember District, especially in Kalisat District, which causes the importance of applying organic fertilizers. The importance of using organic fertilizers requires the participation of farmer groups to be more empowered in producing and using organic fertilizers. The purpose of this study was to analyze the needs and constraints faced to develop a strategy for developing a farmer group empowerment program in the use of organic fertilizers in the Kalisat subdistrict, regency Jember. This research is classified as a qualitative research which aims to analyze the key factors in the farmer group empowerment program. The results showed that in the elements of program needs there were two needs which were key factors, namely organic farming production facilities and local government policies. In the element of constraint there are two key obstacles namely the low knowledge of farmers and the limitations of organic fertilizer processing tools and machines. The resulting strategy is in the form of: 1) Addition of organic farming production facilities. 2) Alignment of local government policies by adding programs to promote the use of organic fertilizers in Jember Regency in the main program of Jember Mandiri. 3) Increase farmer's knowledge related to the manufacture of organic fertilizers through counseling.
THE DISTRIBUTION AND SOIL CARBON STOCK ON LAND UTILITY TYPES OF BUSH, MOOR, MIXED GARDEN AND RAINFED RICE FIELDS ON DRY LAND IN ACEH BESAR REGENCY Abdullah, Umar Husein; Endiyani, Endiyani; Irhami, Irhami; Agustina, Sri; Akbar, Yusran
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2509

Abstract

This study aims to determine the potential of soil carbon on dry land in Aceh Besar regency. This study uses a descriptive method based on field results and surveys and laboratory analysis. Soil sampling at various depths was carried out for carbon and bulk density analysis. Composite soil samples were taken at a depth of 0-5, >5-10, >10-20, >20-30, >30-70, and >70-100 cm. The type of land use is bush covering an area of ??96,962.2 ha, moor 313.03 ha, rainfed rice fields 4,478.67 ha and mixed gardens 15,052.09 ha. The highest percentage of soil carbon is in the mixed garden land utility type (3.40%) compared to other types of utility. the highest carbon potential is found in the bush land utility type (137.68 tons/ha) compared to other types of utility. The highest soil carbon stock is in the type of land use of bush compared to other types of land utility. This is because the bush land utility type has soil carbon potential and a large area compared to other land utility types.
ANALYSIS OF GROWTH AND YIELD OF SHALLOT VARIETIES WITH ORGANIC LIQUID FERTILIZER IN THE SUB-OPTIMAL LAND OF WAMENA Tuhuteru, Sumiyati; Inrianti, Inrianti; Maulidiyah, Maulidiyah; Nurdin, Muhammad
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2545

Abstract

This study compares the degree of adaptation of four shallot varieties introduced to the sub-optimal land of Wamena with one local variety. The study determined the physiological processes of plants observed 5 and 11 weeks after planting. The results show that the best-adapted shallot is the local variety which is indicated by the parameter of harvest index (0.820). In addition, the results showed that the local Wamena variety produced high production with a high assimilation rate (0.072 g/dm2week-1), had a leaf area (41,750 cm) and a high leaf area value (0.465 cm) even though it was indicated by treatment without fertilizer application. Liquid organic (control treatment). Compared with the introduced varieties, which showed no significant effect on each liquid organic fertilizer treatment level. The difference in responses shown by each variety is influenced by the genetic ability of each variety which is supported by environmental conditions.
THE RELATIONSHIP BETWEEN ECTOPARASITES AND THE GROWTH OF SEAWEED (KAPPAPHYCUS ALVAREZII) CULTIVATED IN THE WATERS OF MANDALLE VILLAGE, PANGKAJENE ISLANDS REGENCY Baga, Irfani; Baiduri, Mohamad Adnan; Rusli, Rusli
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2572

Abstract

This study aims to determine the types of ectoparasites found in the thallus of cultivated seaweed Kappaphycus alvarezii and their effect on their growth. The research will be conducted in the seaweed cultivation area of Mandalle Village, Pangkajene Islands Regency. The determination of research stations was carried out purposively (purposive sampling) for three representative aquaculture stations. This is so that it can represent or describe the condition of the waters of Mandalle Village. The cultivation method used in this study was the long line method as used by residents around the study site. Maintenance construction as a sampling unit at each station point, in the form of a 25-meter long rope span of 10 ropes with a distance between the ropes of 1 m. Each stretch rope contains 100-120 seedling clumps with a distance of 20 cm between the straps. Seaweed seeds with an initial weight of 50-70 grams, tied to clump ropes. Planting of seeds is carried out at a depth of 30 cm from the surface of the water. The cultivation construction distance is installed as far as 700-1000 m from the beach. Observation of growth is done by measuring the weight of each clump or the overall weight of each clump of each span rope, at the end of each maintenance cycle. The data obtained for 45 days is then calculated using the growth formula. Seaweed samples for observation of ectoparasites were taken at 3 (three) points of the cultivation area for each bundle of seaweed. The entire surface of the sample thallus was observed with the naked eye and the loop. The results of this study indicated that all observation stations on the South, North and West coasts were dominated by barnacle ectoparasites, followed by green mussels and worms with a total percentage of 90%. While the absolute growth between all stations is relatively the same.
CORRELATION BETWEEN WATER QUALITY PARAMETERS AND VIBRIO SP. BACTERIA CONTENT IN TRADITIONAL VANNAMEI SHRIMP (LITHOPENAEUS VANNAMEI) CULTURE Asni, Asni; Rahim, Rahim; Saleh, Ramlah; Landu, Anti; Muliadi, Muliadi
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2577

Abstract

Vannamei shrimp is a species of shrimp that is frequently cultivated using conventional methods. This is because vannamei crustaceans have favorable prospects and profits. Traditional Vannamei shrimp cultivation has great development potential, but preventing parasites and diseases that originate in the pond water when cultivating shrimp is impossible. The incidence of disease is closely correlated with parameters of water quality. Pathogenic microorganisms, specifically the Vibrio sp. bacteria, are responsible for one of the prevalent maladies affecting vannamei shrimp farms. Vibrio sp. bacteria produces vibriosis, the clinical symptoms of brownish-red gills, a crimson uropod and abdominal telson, and a sluggish swimming speed. This study aimed to determine the correlation between Vibrio sp. bacteria content and water quality parameters in conventional vannamei shrimp (Lithopenaeus vannamei) cultivation. This study employed exploratory methods and purposive sampling for its sampling. Isolation of microbes using selective media containing TCBSA. The colony abundance of Vibrio sp. bacteria was calculated using the Total Plate Count method. The results showed no significant correlation between the quality of pond water and the abundance of Vibrio sp. bacteria colonies in the traditional system of vannamei shrimp (Lithopenaeus vannamei) cultivation, with a correlation value of > 0.05.
FEASIBILITY ANALYSIS OF TILAPIA FISH FARMING IN FLOATING NET CAGES (KJA) IN LAKE RANAU Emilyasari, Desy; Tarigan, Rani Rehulina; Diniariwisan, Damai
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2616

Abstract

Lake Ranau is located on the border of West Lampung Regency, Lampung Province and South Ogan Komering Ulu Regency, South Sumatra Province. Lake Ranau has functions including ecological and socio-economic cultural functions. Some important technical       aspects in a tilapia aquaculture business in KJA include KJA components, maintenance/production processes ranging from seed stocking, feeding to harvesting and constraints faced by farmers during the production process. The criteria observed in determining the feasibility of tilapia KJA cultivation include: investment costs, profits, profitability, BEP (Break Event Point) and R / C Ratio (Revenue Cost Ratio). Economically, tilapia aquaculture in KJA in the waters of Lake Ranau is profitable and feasible for both category I and category II. The profitability value of this KJA farming business is 115% for category I and 119% for category II. The R/C ratio value in one production cycle is 2.15 for category I and 2.19 for category II which means the business is feasible to establish.
ENERGY AND CLEAN WATER POTENTIAL IN A CLOSED SYSTEM SUGAR FACTORY Gunawan, Gunawan
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2656

Abstract

The production and demand for sugar in Indonesia increases every year. This condition has the potential to make the sugar factory a model of a closed system sugar factory, because the increase in white crystal sugar (GKP) production will increase the by-products (bagasse, filter cake, molasses and wáter). The closed system sugar factory is a GKP factory integrated with the power generation and clean water treatment industries. In this model, the raw material for sugar cane is not only used as sugar but also as a source of renewable energy and clean water. The purpose of this study was to analyze the potential utilization of by-products in the form of bagasse, filter cake, molasses and water in white crystal sugar factories. The research method is mass balance using input, process and output data at the sugar factory and secondary data. The results of this study have provided information about the potential for energy and water in closed system sugar production. The energy potential for power generation from blotong is 1 730.2 MJ/ton GKP, molasses is 5 939.0 MJ/ton GKP. The energy consumption at the power plant from blotong is 56.1 MJ/ton GKP, molasses is 408 MJ/ton GKP. The potential for clean water from water treatment for 1 ton of GKP is 4.6 tons, equivalent to 0.4 tons of clean water per ton of sugarcane.
RICE (ORYZA SATIVA L.) INPARI 42 VARIETY GROWTH AND PRODUCTION IN RESPONSE TO BOKASHI AND PHONSKA NPK FERTILIZER Afa, Musadia; Tojang, Djunarlin; Handayani, Fitrianti
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2668

Abstract

This study aims to investigate the optimum dosage of Bokashi and Phonska NPK fertilizer on the growth and production of the Inpari 42 rice variety. This investigation was conducted at the agricultural location of Ulu Mowewe Village, Mowewe District, East Kolaka Regency. The experiment used was the Split Plot Design (RPT). The factorial pattern consists of two treatment factors, namely the Bokashi (B) treatment factor with three levels, namely: B1 = 1.2 kg/plot, B2 = 2.4 kg/plot, and B3 = 4.8 kg/plot, and the treatment factor Phonska NPK, which consists of three levels, namely N1 = 0.18 kg/plot, N2 = 0.36 kg/plot, and N1 = 0.54 kg/plot. Parameters observed in the study were: plant height, number of tillers, number of leaves, leaf length, leaf width, panicle length, number of panicles or clumps, number of grain or panicles, number of filled grain or panicles, the weight of 1000 grain grains, dry milled grain yield (GKG) per plot, Milled Dry Unhulled grain yield (GKG) per conversion. The data were processed using variance (ANOVA) and followed by the Least Significant Difference Test (LSD). Based on the results of the study, it can be concluded that the combined dose of Bokashi and Phonska NPK fertilizer significantly affected plant height (cm), the number of tillers, the number of leaves (strands), leaf length (cm), leaf width (cm), panicle length (cm), number/panicle, total grain/panicle, total grain/panicle, and yield of dry milled grain (GKG)/slot (kg), the yield of dry milled unhulled grain (GKG)/conversion (tons) The dose treatment of Bokashi and Phonska NPK showed that the optimum combination dose of Bokashi and Phonska NPK for the growth and yield of Inpari 42 rice was B3N2 (4.8 kg and 0.3 kg/plot).
COMPOUND CONTENT OF LOCAL CURCUMIN (CURCUMA XANTHORRHIZA) IN NORTH SULAWESI, INDONESIA Demmassabu, Langimanapa Sofia; Paat, Frangky Jessy; Turang, Deflly Ansye Shilfana; Tumbelaka, Selvie; Mamuaja, Christine F; Wantasen, Sofia; Toding, Marjam M.; Pongoh, Jantje; Paulus, Jeanne Martje
Journal of Agriculture Vol. 2 No. 02 (2023): Research Articles, July 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i02.2751

Abstract

This Zingiberaceae plant is widely used as medicine, including temulawak. Because curcuma (C.xanthorrhiza) is a medicinal plant that has many benefits and includes plants needed in large quantities compared to other medicinal plants. Traditionally rhizomes Temulawak is used to treat stomach ailments, liver disorders, constipation, diarrhea, dysentery, fever, hemorrhoids, hypotriglyceridaemic, and anti-inflammatory. Study about plant Curcuma local ignite still not enough researched so that not yet get information compounds which contained in the local curcuma of North Sulawesi for the development for biopharmaceutical development, mapping in the distribution of plants, ecology, plant conservation and protection to maintain local wisdom. Histochemical Test is a method to determine the content of chemical compounds in a plant tissue qualitative. Testing can be done by adding a special reagent or solution to the incision organ plant and will give color which Specific. Activity study this will test curcumin compound group on local ginger from North Sulawesi by histochemical method. research that done is study non experiment with design descriptive qualitative. The results showed that North Sulawesi local white temulawak powder contained curcumin in a sample with a sample weight of 0.10 g at a sample spotting volume of 20 µl with a sample spotting volume of 2040 nanograms, curcumin levels were <0.10 nanograms/mg. Curcumin biosynthesis is influenced by site conditions, agro-climate, genotype, and plant cultivation.

Page 13 of 22 | Total Record : 217

 11   12   13   14   15 

Filter by Year

2022 2026


Reset
Filter By Issues
All Issue Vol. 5 No. 01 (2026): Call for Papers, March 2026 Vol. 4 No. 03 (2025): Research Articles, November 2025 Vol. 4 No. 02 (2025): Research Articles July 2025 Vol. 4 No. 01 (2025): Research Articles March 2025 Vol. 3 No. 03 (2024): Research Articles November 2024 Vol. 3 No. 02 (2024): Research Articles, July 2024 Vol. 3 No. 01 (2024): Research Articles, March 2024 Vol. 2 No. 03 (2023): Research Articles, November 2023 Vol. 2 No. 02 (2023): Research Articles, July 2023 Vol. 2 No. 01 (2023): Research Articles, March 2023 Vol. 1 No. 03 (2022): Research Articles, November 2022 Vol. 1 No. 02 (2022): Research Articles, July 2022 Vol. 1 No. 01 (2022): Research Articles, March 2022 More Issue