Jurnal Ilmu Pertanian Indonesia
Not a member yet
955 research outputs found
Sort by
Social, Economic, and Environmental Impacts of Sentul Rain Forest Tourism Development
Get PDFSentul Rain Forest Tourism (SRFT) is one of the ecotourism objects developed in a forest area managed by Perhutani Public Company in collaboration with a private company. This study examined the social, economic, and environmental impacts of SRFT on the surrounding community before and after SRFT development. The study used quantitative descriptive analysis methods, with interviews and questionnaires. Respondents were divided into two groups: community groups receiving direct and indirect impacts. The results showed that SRFT had a positive social impact, namely increasing social accessibility, which can increase people\u27s mobility. Economically, SRFT created jobs and increased people\u27s income in community groups with direct and indirect impacts. Environmentally, it increased the tree covering and positively changed people\u27s attitudes towards forest management. However, the development of SRFT also has a negative impact. Socially, increasing conflict between tourists and the community, both in the community groups receiving direct and indirect impacts. Economically, it increased the externality costs to community groups that receive direct impacts.
Keywords: economy impact, ecotourism, environmental impact, rain forest, social impac
Hematological Profile of Beef Cattle After Consuming Concentrate Feed Supplemented with Depolarized Katuk Leaf (Fedtugrow®) in Local Farmers
Get PDFFedtugrow® is a complete feed containing depolarized katuk (Sauropus androgynous) leaves and is beneficial for enhancing the productivity of both dairy and beef cattle. Depolarization technology in katuk leaves involves the removal of polar compounds from the leaf to eliminate the potential side effects resulting from katuk consumption, such as bronchiolitis obliterans and inhibition of calcium absorption. This technology could eliminate side effects without compromising the efficacy of katuk leaves in increasing milk production and body weight gain. This study aimed to evaluate the efficacy of Fedtugrow® in promoting the growth of beef cattle and its impact on the health status of the cattle raised on smallholder local farms with distinct characteristics compared to commercial farms. Ten Limousin male cattle entering the fattening phase were divided into a control group that consumed standard concentrate and a treatment group that consumed Fedtugrow® for three months. Blood was collected at the end of treatment for hematological analysis, including erythrocyte and leukocyte profiles. Cows consuming Fedtugrow® showed a significantly higher average daily gain and lower stress index than the control. Furthermore, no significant differences were observed in the hematological profile, such as total erythrocyte count, hemoglobin level, hematocrit, and total leukocytes. This study showed the ability of Fedtugrow® as a growth promoter without negatively affecting the physiological status of beef cattle raised on smallholder farms.
Keywords: Beef cattle, Fedtugrow®, hematology, smallholder local far
Molecular and Growth Responses of Musa acuminata var. Barangan Post Application of Beneficial Endophytic Bacteria
Get PDFEndophytic bacteria reside in plants\u27 roots and can benefit plant growth. The study aimed to evaluate the application of an endophytic bacterial consortium in enhancing the growth of banana plants and identify genes that maximally assist in nutrient utilization during banana plant growth. One-month-old banana plants were inoculated by soaking them for one hour in a 500 mL suspension of endophytic bacteria. In vivo observations were conducted in the greenhouse at Al-Azhar University Indonesia over 40 days, during which morphological and physiological growth were calculated. The results revealed that control plants exhibited lower growth than those treated with endophytic bacteria. The application of endophytic bacteria led to increased growth in banana barangan plants, as evidenced by improvements in leaf length, leaf width, plant height, and chlorophyll levels. Furthermore, a semi-quantitative analysis of banana plants treated with Cytobacillus depressus, Bacillus stratophericus, and B. mycoides revealed genes significantly contributing to growth. These genes, including WRKY33, Ma03_92660, Ma01_901890, Ma04_936790, and Pho-1,2, exhibited their highest expression levels starting from the 28th day of the experiment.
Keywords: plant growth, endophytic consortium bacteria, semi-quantitative real-time PCR, identify gene
Pengelolaan Budi daya Rumput Laut dengan Pendekatan Sosial-Ekonomi dan Ekologi di Pulau Pari
Get PDFSeaweed plays an essential role in the people\u27s economy in Pari Island because its cultivation has been the main livelihood for a long time. Currently, seaweed cultivation activities are no longer found, possibly due to tourism activities that directly degrade the cultivation activities. The purpose of this study is to evaluate the status of sustainability and determine the strategy of cultivation management in 5 aspects: ecological, social, economic, institutional, and infrastructure. Data were collected from primary and secondary sources related to socio-ecology in Pari Island. The assessment of the level of sustainability in each dimension was carried out using multidimensional scaling analysis, and a fairly sustainable average suitability value was obtained, namely the infrastructure (73.37), institutional (71.24), ecological (62.48), and economics (62.16). Meanwhile, the dimension with a very suitable sustainability value is the social dimension, with a value of 76.33, meaning that it is very suitable. Overall, the sustainability of seaweed cultivation, if viewed from several dimensions, shows the level of suitability of cultivation, both in terms of infrastructure, institutions, ecology, and economics. However, several dimensions, such as economic and ecological dimensions, must still be considered and continue to be encouraged so that sustainability can be achieved in all dimensions.
Keywords: cultivation, management, Pari Island, seaweed, socio-ecolog
Karakter Morfo-agronomi Tanaman Cabai Merah (Capsicum annum L.) Fase Awal Vegetatif pada Kondisi Stres Jenuh Air
Get PDFVegetable cultivation in tropical riparian wetland is currently suboptimal due to unpredictability of water dynamics. Chili pepper is a fruity vegetable that is often cultivated in tropical riparian wetland but is often constrained by conditions of excessive water saturation, such as shallow water tables, waterlogging and submergence in the transition period (dry to rainy season). The aim of this research was to study the morpho-agronomy of varieties of chili peppers under waterlogging stress during the early vegetative stage. A Plot Design was used in this experiment. The main plot consisted of (1) control (field capacity, regularly watering) and (2) waterlogging (simulated by adding water to the growing substrate until a thin layer of water was visible above the substrate surface during four days, followed by a seven-day recovery time during seven days). The subplot consisted of three chili pepper varieties, namely Laris, Romario, and Takanotsume (Japanese variety). Results of this study revealed that waterlogging stress significantly affected root length, number of leaves, total leaf area, chlorophyll content (SPAD), root fresh weight, shoot fresh weight, root dry weight, and shoot dry weight after stress and after recovery time. Meanwhile, chili pepper varieties were only significantly affected the total leaf area and chlorophyll content (SPAD). The total dry weight of Romario and Takanotsume before stress, after stress and after recovery did not significantly increase under waterlogging stress, whereas the total dry weight of Laris was precisely increased, indicating that vegetative growth is continuing. The Laris was categorized as one of chili pepper varieties that had medium tolerance to waterlogging stress at the early vegetative stage.
Keywords: Capsicum annum L., soil plant analyses development, total dry weight, waterloggin
Aplikasi Ekstrak Mimosa invisa L. dan Pupuk NPK Dosis Rendah dalam Pengendalian Hama dan Patogen Padi Gogo
Get PDFThis study aimed to determine the effect of Mimosa invisa L. weed extract application and a low dose of NPK fertilizer on the intensity of pest attack and pathogen infection on upland rice. This research has been done using Split Plot Design with 3 replications. The main plot was the dose of NPK fertilizer (50% and 100% NPK). The subplot was the concentration of weed extract (0, 1.25, 1.67, 2.5, and 5% concentrations). The variables observed include the intensity of grasshopper and case worm attack, Cercospora sp. that causes brown spots, and Xanthomonas oryzae pv. oryzae that causes bacterial leaf blight. The results showed that the application of weed extract under a low dose (50% NPK) has not been able to suppress the intensity of grasshopper and case worm attacks, and the intensity of the pathogen causes brown spots and bacterial leaf blight. However, 2,5% and 5% concentrations of weed extract can potentially suppress pathogen infection that causes brown spots on upland rice.
Keywords: grasshopper, brown spots, Mimosa invisa L.weed extract, case worm, bacterial leaf blight, NPK fertilize
Keragaman Arthropoda pada Teknologi Bujangseta di Tanaman Jeruk Siam
Get PDFBujangseta is a technology used throughout the year to produce citrus fruits. This technology has economically succeeded in increasing the income of citrus farmers by 23.5%. Sustainable management of bujangseta technology is neede, one of which is maintaining the sustainability of the agroecosystem. A stable agroecosystem ensures the availability of ecosystem services through nutrient cycling and the natural control of pest and disease populations. The stability of agroecosystems is coherent with the high biodiversity of arthropods. This study aims to evaluate the effect of applying the citrus plant bujangseta in Karangwidoro village and Krajan village, Dau District, Malang Regency, East Java, from June to December 2022. The two application methods were light trapping (lighttrap) and pit trap (pitfall glass), and the results were analyzed using a t-test. The diversity index, species richness index, species evenness index, and dominance index were calculated. The results showed that the detrivores of the Collembola group dominated the diversity of arthropods, the primary pest of the Diaphorina citri, and the predatory arthropods of Paederus sp. and Braconidae. Diversity and community structure of arthopods indicated there at significant differences in diversity, dominance, evenness, and species richness in those two locations. Bujangseta in the Krajan has a higher community structure compared to the Karangwidoro, showing that the ecosystem at the Krajan location is better preserved.
Keywords: arthropods, bujangseta, citrus, community structur
Estimasi Populasi dan Habitat Rusa Timor (Rusa timorensis Blainville1882) dalam Kawasan Taman Wisata Alam Menipo
Get PDFKnowing the population and habitat conditions of Timor Deer (Rusa timorensis), which is a protected animal, is very important to ensure the survival of this species. One of the most important habitats for Timor Deer is Menipo Nature Park, which must be well managed to support the welfare and sustainability of the species. Good management includes protection of natural habitats, regular population monitoring, and sustainable conservation efforts so that Timor Deer can survive in their natural environment. The purpose of this study was to estimate the population and habitat conditions of Timor deer in Menipo. The method used is a combination of point and path, while the habitat is described descriptively. From the results of research on the 571 ha habitat area, the population of timor deer was estimated to be 399 individuals with a population range of 366 to 432 individuals at the 95% confidence interval with a population density of 1.14 individuals per hectare. The population structure showed an inverted pyramid, indicating less than optimal conditions in terms of population age distribution. The sex ratio was 2:5 for juveniles, 2:3 for adults, and 1:1 for the old age group. This sex ratio is not good for the timor deer population as 1:5 is good. The most common type of grass for deer is timor grass (Ischaemum timorensis). Other grass species are Microlaena stipoides, Paspalum scrobiculatum, Imperata cylindrical, and Desmodium capitulum shrub. However, some areas of this habitat are covered by alien invasive species, Cromolaena odorata, which needs to be eradicated to maintain food availability. Mangrove parts eaten by Timor deer (Rusa timorensis) include young leaves, young stems, and exfoliated bark. Mangrove species commonly found as food for deer include Rhizophora mucronata, Bruguiera parviflora, and Sonneratia alba.
Keywords: habitat, Menipo, population, timor deer, Rusa timorensi
Bioaktivitas Usnea barbata (L.) F.H. Wigg sebagai Insektisida Nabati Coptotermes curvignathus (Holmgren)
Get PDFThe subterranean termite Coptotermes curvignathus is a type of insect that damages wood until it is porous and destroyed. Until now, termites are chemically controlled but negatively impact the environment, so bioinsecticides such as from Usnea barbata lichen are needed. This study aims to determine the bioactivity of U extract. Barbata as a bioinsecticide for subterranean termites C. curvignathus. The experiment used Completely Randomizd Design with 7 treatments (concentrations of 0%, 5%, 10%, 15%, 20%, 25%, and Termicon) and 3 replicates. The extract was prepared from 300 g of U barbata powder, macerated in 7 days in 96% ethanol in a ratio of 1:10 (300 g/3 L). Mortality and feed weight loss were observed for 7 days. The extracts contained alkaloids, flavonoids, terpenoids, steroids, saponins, and tannins. The phytochemicals were analyzed descriptively, and a lethal concentration value of 50% (LC50) was determined by probit analysis. Data on termite mortality percentage and feed loss percentage were analyzed using ANOVA at a 5% confidence level. If the Fcalct > Ftable, Duncan\u27s further test was carried out. The results showed that the extract contained alkaloids, steroids, tannins, and saponins. The mortality of subterranean termites was indicated by an LC value of 50-72 hours of 19.32%. Statistically, U. barbata extract affected mortality but did not differ significantly in the feed weight loss of C. curvignathus subterranean termites.
Keywords: bioactivity, Coptotermes curvignathus, insecticide, Usnea barbat
Peningkatan Masa Pakai Pisau Gergaji Tungsten Carbide Berpelapis dalam Pemotongan Medium Density Fiberboard
Get PDFThe scarcity and high cost of high-quality sawn timber has resulted in the switching of furniture industry to using composite wood such as medium density fiberboard (MDF) as the raw material for its products. One of the factors that affect production costs and product quality in the furniture industry is the quality of the cutting tool used in the cutting operation. The quality of the cutting tool could be improved through the addition of coatings on the surface of cutting tool (surface coating). The purpose of this study was to determine the life time of AlCrN, TiAlN, and TiN coated tungsten carbide (TC) tools in cutting MDF. Cutting operations were performed on a computer numerical control (CNC) router machine at feed per revolution (Frev) of 0,10, 0,15, 0,20, and 0,30 mm/rev. The TC cutting tool life was determined based on its wear and was calculated using the Taylor tool life formula. The results showed that coated TC cutting tool provided a better wear resistance and longer life than uncoated TC cutting tool. The low of Frev set in cutting MDF resulted in a lower wear and longer life of cutting tool. AlCrN coated TC cutting tool provided the best wear resistance and longest life, thus it promising to be developed and used in cutting MDF.
Keywords: coated cutting tool, medium density fiberboard, surface coating, tool life, wea