Jurnal Ilmu Pertanian Indonesia
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Kontribusi Pertanian Berkelanjutan di Lahan Suboptimal Terhadap Aspek Lingkungan dan Sosial-ekonomi di Kecamatan Pulau Burung, Provinsi Riau
Get PDFThe circumstance of suboptimal land, due to its complex and often difficult nature, is either under-utilized and becomes abandoned space or over-utilized and generates environmental problems. In fact, suboptimal land, including peatlands, can be an alternative amid the decreasing area of arable land per capita for agriculture. This study aims to assess the contribution of sustainable agriculture for coconut commodities in the peatlands area, Pulau Burung District, Indragiri Hilir Regency, Riau Province. Data on environmental aspects were obtained from secondary data provided by the local company. Data on socio-economic aspects were obtained using focus group discussions (FGD) in five villages through semi-structured interview to 29 residents from various backgrounds. As a result, agricultural practices in this area can be deemed as sustainable based on water management indicators. The environmental impact is very minimal, biodiversity is preserved, and the subsidence rate is very low at 1.7 cm per year. In terms of socio-economic aspect, it can be concluded that the community perceives the environmental and social aspects are well maintained. Referring to the results of the FGD on agricultural practices, land fire control, food access, waste management, and water access are aspects that are considered adequate for the community. In contrast, land governance scored the lowest due to the difficulties in obtaining land certificates.
Keywords: peatland, suboptimal land, sustainable agriculture, water managemen
Asesmen Produktivitas Ternak dan Kesesuaian Potensi Tanaman Pertanian Sebagai Hijauan Pakan: Sebuah Potret Kawasan Agro-Ekologi Dataran Rendah Selatan Merauke, Papua
Get PDFThe study aimed to descriptively capture livestock production and food waste and the suitability of border farms in the lowland Merauke region. Data were analyzed on livestock population structure (individual/ST), food crop waste production (dry weight, DW), capacity, and location quotient (LQ), and SWOT. Food crop waste production is 350 thousand tons of DW and so far only provided for ruminant cattle about 11%. Food crop straw waste is still dominated by rice straw (97%), followed by corn waste (2%), sweet potatoes, and peanuts. The capacity to increase the cattle population is close to 315 thousand ST. The LQ value of both livestock and food crops in Merauke is still in the range of 0 -<1 and is still a prospective sector to be optimized. The results of SWOT analysis conclude that the S-O strategy is the intensification and expansion of livestock commodities.
Keywords: livestock population structure, location quotient, KPPTR, crop residues, Merauk
Infiltrasi dan Aliran Permukaan pada Agroforestri dan Kelapa Sawit
Get PDFForest to oil palm plantations conversion has changed soil\u27s physical properties significantly. It caused significant changes in the hydrological cycle and affects the water resources around the research site. One of the strategies that could minimize the negative impact of monoculture oil palm plantations is better plantation management by implementing a mixed cropping system (agroforestry). This study aims to analyze the infiltration, surface runoff, and surface runoff coefficient in agroforestry and monoculture oil palm. This observation was conducted in the oil palm plantation area of PT Humusindo Makmur Sejati, Bungku Village, Bajubang District, Batanghari Regency. The infiltration rate was calculated according to the Horton method, and the amount of runoff in agroforestry and oil palm monoculture used the soil conservation service-curve number method. The results showed differences in infiltration, surface runoff, and runoff coefficients between the agroforestry land and the monoculture oil palm. The highest infiltration is in A48, which is 42,00 cm/hour in the dry season and 18,00 cm/hour in the rainy season. The lowest runoff is in A23, which is 70.14 mm with a runoff coefficient of 0.04. The highest runoff occurred in S48 of 339.88 mm, with a runoff coefficient of 0.19. The differences in infiltration, surface runoff, and runoff coefficient in this study are affected by the vegetation density and the amount of litter.
Keywords: agroforestry, infiltration, oil palm, runoff coefficients, surface runof
Compacted Feed Potency to Minimize Cattle Feed Adaptation Period on The New Introduced Feed
Get PDFCompacted feed such as wafers and pellets is still rarely given to cattle shipping in Indonesia because it requires an adaptation period to the newly introduced feed. This study aimed to observe forage compacted feed potency to minimize the adaptation period of kupang cattle to a new feed with high nutrient content. Two experiments were carried out to observe six feed formulations and four different feed forms. The first experiment was an experiment to determine three of six formulations with the same nutritional content to be tested in the second experiment. The second experiment was to observe four feed forms (wafers, pellets, dry pellets, and cubes) combined with the three best formulations from the first experiment. Six treatments and five replications using 30 cattle and 30 kg of feed were carried out in the first study, while the second one used a randomized factorial design of 4´3 treatments and 5 replications consisting of 60 cattle and 420 kg of feed. The results showed that there was no significant difference between the formulations at the same nutritional level. The highest consumption results were found in the form of wafer followed by cubes, pellets, and dry pellets (P <5%). The conclusion of this study is that the compacted feed in the form of wafers, pellets, and cubes can be used to eliminate the feed adaptation period.
Keywords: feed logistics, compacted feed, kupang cattle, adapting period, feed adaptabilit
Pemanfaatan Limbah Kultur Batch Bioreaktor dan Biochar untuk Meningkatkan Kesuburan Tanah
Get PDFThe purpose of study was to determine the effects of aeration treatment on fish wastewater quality as a liquid organic fertilizer and fish wastewater watering treatment as a liquid organic fertilizer and a biochar application on nutrient content of lettuce and soil chemical properties. This study used a non factorial randomized block design. Treatments combination were watering freshwater frequency (W0: without watering; W1: watering twice a week; and W2: watering 4 times a week) and rice husk biochar dose (B0: without rice husk biochar; B1: 10 g rice husk biochar per polybag; and B2: 20 g rice husk biochar per polybag). The research parameters included: fish culture wastewater quality (pH, Biological Oxygen Demand, Chemical Oxygen Demand, NH3-N, NO3, NO2, Dissolved Oxygen, electrical conductivity, and temperature), plant nutrient content analysis (N, P, and K), and soil chemical analysis (pH, organic C, total N, C/N ratio, available P, and exchangeable K). The results showed that the quality of wastewater after aeration for 4 days met the water criteria to cultivate plants. The nutrient contents in the soil showed criteria for neutral soil pH, very low organic C, very low total N, medium C/N ratio, very high available P, and low exchangeable K. Although the nutrient content in the soil was low, the concentrations of N (1.87-3.08%), P (0.16-0.21%), and K (2.35-3.43%) nutrients in the plant were sufficient for lettuce growth. The combination treatment of watering wastewater 4 times a week and rice husk biochar 20 g per polybag gave better results to increase soil fertility and lettuce plant nutrients.
Keywords: liquid waste, plant nutrients, soil amendment, soil chemistr
Strategi Peningkatan Pajak Restoran pada Masa Pandemi Covid-19 di Kota Bogor
Get PDFThe purpose of this study was to analyze the impact of covid 19 on restaurants, calculate potential income of restaurants and formulate a strategy for increasing restaurant taxes during the Covid-19 pandemic in Bogor City. The research population was 633 restaurants. Samples were taken based on the Slovin formula as many as 87 restaurants. The analytical methods used are descriptive statistics, multiple linear regression analysis (cross section data), IFAS-EFAS Matrix, SWOT, and QSPM. The results showed that Covid-19 had an impact on a decreasing income, a decrease in the number of customer visits, and a decrease in the number of workers at restaurants in Bogor City. The potential for restaurant taxes during the Covid-19 pandemic in Bogor City based on survey results were 111.3 billion rupiah. Factors affecting restaurant income in Bogor City during the Covid-19 pandemic were the number of customer visits, the number of workers, and promotional activities. The main strategy for increasing restaurant taxes during the Covid-19 pandemic in Bogor City is updating restaurant data regularly.
Keywords: Bogor city, covid-19, restaurant ta
Cara Pemupukan yang Menguntungkan Usaha Tani Kentang di Kabupaten Banjarnegara, Jawa Tengah
Get PDFPotatoes are one of the horticultural commodities with high economic value and have the opportunity to fill the domestic and export markets. However, potato productivity in Central Java tends to decline due to suboptimal fertilization technology. This study aims to assess crop growth, potato production, and the economic feasibility of potato farming. The experiment was carried out in Sumberejo Village, Batur District, Banjarnegara Regency, in September-December 2021 with a pilot demonstration plot covering an area of 0.4 ha by applying dibbling and spreading fertilization. Data on plant growth and production were analyzed using average values and t-tests‒; input-output data were analyzed financially to calculate economic feasibility. The results showed that the dibbling method had an insignificant effect on the vegetative and generative plant growth, but potato production by dibbling was about 3 kg ha-1 compared to production by dispersing. The dibbling method gave a higher profit memberikan nilai keuntungan lebih tinggi with B/C = 0.81 compared to the dispersed method with B/C = 0.68. The change in fertilization from spread to dibble gave high benefits with an indication of MBCR = 8.11. If there is a decrease in production and prices, then fertilization by dibbling has a higher tolerance limit (44.87%) to the losses caused than dibbling fertilization, which has a tolerance limit of 40.49%.
Keywords: fertilization methods, economic feasibility, potato, profits, productio
Aplikasi Actinomycetes dan Bakteriofag pada Tomat Sambung untuk Mengendalikan Penyakit Layu Bakteri Ralstonia solanacearum dan Meningkatkan Hasil Buah
Get PDFRalstonia solanacearum (Smith) is a soil-borne pathogen that causes bacterial wilt disease and is a complex species in races, biovars, phylotypes, and strains of various pathogenicities. As a result, the pathogen is difficult to control. An alternative control is by applying actinomycetes and bacteriophages on tomato grafted with resistant rootstock. This study aims to find the best combination in controlling bacterial wilt disease among grafted tomato plants and/or actinomycetes and/or bacteriophage treatments to increase yields. The graftings were between Amelia (East West, Indonesia) or H7996 (AVRDC) as rootstocks, and Servo (East West, Indonesia) as the susceptible scion. The grafting used the tube method, and the experimental design was a randomized completely block design with the grafted plants treated by actinomycetes and/or bacteriophages with three replications. The results indicated that actinomycetes application on plants grafted with Amelia rootstock or H7996 and the application of bacteriophages on susceptible varieties (Servo) could be the best alternative treatment in controlling the bacterial wilt disease. The susceptible varieties with the actinomycetes or bacteriophages application could even increase fruit yields higher than the grafted tomatoes treated with actinomycetes or bacteriophages. In fact, the susceptible tomato varieties with bacteriophage treatment showed high fruit yield.
Keywords: actinomycetes, bacteriophages, bacterial wilt disease, fruit yield, Ralstonia solanacearu
Segi Sanitasi pada Pendaratan Ikan Tuna di Pelabuhan Perikanan Samudera Bungus, Sumatra Barat
Get PDFClean and hygienic fish landings to meet sanitation requirements and guarantee the quality of the fish caught are an important part of the role of the fishing ports. However, it has not been done much at Bungus PPS, which was marked by the handling of fish quality that was not standardized, some unloading equipment and transportation facilities were rarely cleaned, and the environmental quality at the fish landing dock was not maintained. The study aimed to evaluate the quality control level of tuna fish, the performance of fish landing sanitation, and estimate the potential losses from neglected fish landing sanitation. The study used the scoring system, p control chart analysis, regression method, and profit/loss analysis. Organoleptically, the quality of tuna landed on Bungus PPS was at 7.50‒7.77 (fresh enough to fresh). The quality of tuna was still under control, with the value of upper control limit (UCL) = 0.220, central line (CL) = 0.07 and lower control limit (LCL) = 0.000. The sanitation performance of fish landings on PPS Bungus was around 3,45 (scale 1-5). Sanitation of fish handling (x) significantly affects the quality of tuna caught (y), which was indicated by the equation y = 0,1308x + 7,175. The sanitation conditions explained that 84.4% of the tuna caught were maintained. Potential losses from neglected landing sanitation were (a) the loss of the best-selling price of tuna and (b) the cost of nutrition consultation and disease management due to damage to the nutritional content of tuna.
Keywords: bungus, tuna caught, fishing port, fish landing sanitatio
Kualitas Kefir Susu Sapi dengan Tambahan Madu Hutan Selama Penyimpanan Suhu Rendah
Get PDFKefir is a highly acidic dairy product with various health benefits. The addition of forest honey plays a role in improving the quality and taste of kefir. This study aimed to evaluate the effect of honey addition and storage time on the physicochemical and organoleptic properties of cow\u27s milk kefir during refrigerator storage. The study was conducted with a 3´3 factorial randomized block design with three replications. The first factor was the added honey (0%, 5%, 10%, and 15%), and the second was the storage time (0, 7, and 14 days). Analysis of variance and Duncan\u27s test were used to analyze the data. The results showed that the added honey significantly affected water activity (P <0.05). In addition, the high concentration of added honey increased the panelists’ preference for kefir acceptance. This study confirmed that the addition of honey and storage time significantly affected the characteristics of the cow\u27s milk kefir. The best treatment was a 15% addition of honey with a storage time of 0 day.
Keywords: honey, kefir, milk, physicochemical, storage tim