Jurnal Ilmu Pertanian Indonesia
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Efisiensi Alokatif Usaha Tani Paprika di Kecamatan Cisarua
Get PDFCultivation of bell peppers by farmers in Pasirlangu Village, Cisarua District, West Bandung Regency, tends to reach less optimum production, indicated by the average production per crop. The purpose of this study is to evaluate three aspects: (1) factors that affect productivity, (2) allocative efficiency, and (3) income of paprika farming in Pasirlangu Village. The Ordinary Least Squares method was used to analyze factors affecting productivity, the Marginal Product Value method to assess allocative efficiency, and the R/C ratio to calculate cultivation profits. The results showed that labor and seed inputs are inputs that have a significant effect on the productivity of agricultural businesses. In the efficiency analysis, seed input and husk charcoal are not efficient inputs, so these inputs need to be added. The income analysis shows that the paprika farming business in Pasirlangu Village is still profitable even though it is not optimal, as indicated by the ratio of profits and costs, which is > 1.
Keywords: bell pepper, income analysis, marginal product value, ordinary least squares, R/C rati
Sifat Fisika dan Mekanika Kayu Acacia aulacocarpa dari KHDTK Wanagama
Get PDFThis study aims to determinethe physical properties and mechanical properties at axial (base, middle, and top) and radial (near the pith, middle, and near the bark) positions, as well as the relationship between the specific gravity and mechanical properties of Acacia aulacocarpa wood. Three 27-year-old trees planted at KHDTK Wanagama wereused. Wood physical and mechanical propertieswere tested per British Standard 373:1957. The statistical analysis used was a two-way ANOVA and a follow-up test of Tukey HSD. The results showed that the average moisture content was 98.95%; the green and air-dry sepesific gravity were 0.58 and 0.61. Radial, tangential, and longitudinal shrinkage from green to oven-dry conditions (total shrinkage) were 2.02%, 5.09%, and 0.33%. The tangential/radial (T/R) ratio was 2.80%. The static bending strength of stress at proportion limit, MoE, and MoR were 498.13 kg/cm2, 116.16x1000 kg/cm2, and 1043.68 kg/cm2, respectively. The compressive strength parallel to the grain and perpendicular to the grain were 596.05 kg/cm2 and 227.25 kg/cm2, respectively. The results of the variance analysis showed that the radial position factor has a significant effect on green moisture content, green and air-dry specificgravity, total radial shrinkage, T/R ratio, static bending strength at stress of proportion limit, MoE, MoR, compressive strength parallel to the grain, and compressive strength perpendicular to the grain. However, the axial position factor did not show any significant differences in the physical and mechanical properties of the wood. Furthermore, air-dry specific gravity has a significant moderate to high positive correlation with all mechanical properties.
Keywords: Acacia aulacocarpa, physical properties, mechanical properties, axial position, radial positio
Tingkat Kepuasan Petani pada Kinerja Kelembagaan Agribisnis Kedelai di Jawa Tengah
Get PDFThe soybean agribusiness institutions have important roles to support the increased soybean production in Central Java. The purpose of this study was to analyze the levels of performance and importance of farmers in the institutional performance of soybean agribusiness in Central Java. This research uses descriptive analytical method, with the technical implementation of research using survey methods. This research was conducted on September - December 2022 with a sampling technique using a purposive sampling on 110 respondent farmers. Data analysis carried out in this research is Importance and Performance Analysis (IPA). IPA is used to compare the level of importance of soybean farmers with their levels of performances. Before being analyzed using IPA, each attribute was tested for validity and reliability, and from the test results it was found that each attribute was declared valid and reliable. The results of the analysis show that one of the attributes that is included in quadrant I and needs to be a priority for improvement is the need to determine the Harga Pokok Produksi (HPP) for soybeans by the government and the need to increase the subsidized fertilizer program. Attributes that fall into quadrant II and whose performances must be maintained include the existence of collector traders, the existence of a soybean seed assistance program, and the availability of quality soybean seeds. Attributes that are included in quadrant III and are the second priority for repairing and improvement are the need for storage granaries, partnerships with companies, and the easy access to financing services. Meanwhile, the attributes that enter quadrant IV and can be ignored are the availabilities of water, labor, and farming infrastructure.
Keywords: importance and performance analysis, importance farmers, performance farmers, soybean
Characterization and Disease Severity of Pathogenic Microbes on 20 Red Chili Genotypes
Get PDFPathogenic microbes are the limiting factor in increasing red chili productivity. These pathogens cause decreasing yield of red chili up to 50-100%. This research aimed to characterize and evaluate disease severity on 20 red chili genotypes caused by pathogenic microbes. The research was arranged in Randomized Complete Block Design with three replications. The samples were 20 chili genotypes, namely UNIB K01, UNIB CGTS1, G35, G48, G56, G60, G67, G77, and G43 (developed by the University of Bengkulu researchers) and IPB C19, COPAY, IPB C495, IPB C14, DORSET NAGA, IPB C4, IPB PANJANG, LOKAL BENGKULU, SELOKA, SSP, and ANIES (developed by others). The results showed that four groups of pathogens attacked red chili, namely Fusarium oxysporum, which causes fusarium wilt disease; Cercospora sp., the cause of leaf spot disease; Colletotrichum sp. causes anthracnose; and virus groups. All tested red chili genotypes could be infected by these four pathogens in which the incubation period, disease incidence, and disease severity were insignificant. Of the nine genotypes developed by the University of Bengkulu researchers, the G35 genotype had the best potency to be developed as a disease-resistant genotype.
Keywords: Cercospora sp, Colletotrichum sp, Fusarium s, viru
Pengkayaan CaCl2 pada Nutrisi Hidroponik untuk Meningkatkan Hasil Tanaman Kailan (Brassica oleraceae L.)
Get PDFOne highly sought-after vegetable is Kalian (Brassica oleraceae L.), valued for its exceptional nutritional content. The cultivation of kalian demands specialized attention. Hydroponic cultivation utilizing Calcium Chloride plays a pivotal role in fostering robust plant growth and resilience, particularly in urban settings. Calcium serves a multifaceted role: safeguarding against pests, enhancing fruit quality, and functioning as an antioxidant during storage. This research was conducted between October 2022 and February 2023, employing a single-factor Randomized Block Design (RBD) that was replicated three times. The study encompassed the following treatments: (i) Control with 0 ppm CaCl2, (ii) 550 ppm CaCl2 (P1), (iii) 650 ppm CaCl2 (P2), and (iv) 750 ppm CaCl2 (P3). The observed parameters encompassed plant height, leaf count, leaf area, fresh weight, and dry weight. The data underwent analysis via analysis of variance (ANOVA), followed by the Honest Significant Difference (HSD) test at the 5% significance level. The outcomes of the study unveiled substantial and statistically significant responses at the 7th, 14th, 21st, and 28th days after planting (HST) concerning the leaf count and wet weight variables. However, no statistically significant response was observed in relation to root length and leaf area measurements.
Keywords: CaCl2, kailan, hydroponics, Ab Mix nutritio
Peningkatan Produktivitas Tanah Sulfat Masam dan Hasil Padi Menggunakan Bioarang dari Limbah Industri Penggergajian Kilang Kayu
Get PDFThe study aims to analyze three aspects. (1) Formulation of biochar from wood refinery sawmill waste at pyrolysis temperatures of 450°C and 550°C with pyrolysis times of 2 and 4 hours. (2) The best wood refinery sawing waste biochar dosage to improve the chemical quality of acidic sulfate soil through improving soil pH, Al-dd, N, P, and K of the soil. (3) Growth and production of paddy on acidic sulfate soils by application of ameliorant biochar of waste sawmill wood mill. The research was conducted in acidic sulfate soil in a screen house in the Experimental Garden of the Faculty of Agriculture, Syiah Kuala University. Soil samples and biochar were analyzed at the Soil and Plant Research Laboratory of the Faculty of Agriculture. The study was an experiment using a factorial complete randomized design with two factors: the temperature and pyrolysis time and the dose of biochar. The results showed that the application of biochar waste from sawmill wood refineries had a very significant and significant effect on improving the quality of acidic sulfate soil and the growth and production of rice fields. The formulation of biochar at a pyrolysis temperature of 550°C for 2-hour pyrolysis with 20 tons/ha is the best improvement in acid sulfate soil quality, growth, and rice field production.
Keywords: acid sulphate, biochar, padd
Identifikasi Bakteri Pelarut Kalium Indigenus Asal Perkebunan Nanas
Get PDFThe use of relatively high doses of inorganic fertilizers to increase yields in plantation-scale pineapple (Ananas comosus) cultivation can lead to new problems, such as being toxic to plants, polluting the environment, and increasing production costs. The utilization of rhizosphere microbes, such as potassium solubilizing bacteria (KSB) is expected can reduce the dose of inorganic K fertilizer application because it can dissolve potassium-fixed Al and Fe soil so that it is available to plants. This study aims to assess and characterize the potential of BPK in pineapple plantation areas. KSB evaluation was carried out based on the Potassium Solubility Index (IKK), besides that, it also carried out the characterization of bacteria that have the potential as CPC isolates. CPC was isolated from planting blocks with low and high production levels in the vegetative (V) and generative (G) phases with 5 replications. As many as 20 isolates from the CPC population on pineapple plantations were successfully isolated in this study. The lowest K solubility index of 0.6 was obtained in isolate RV1 and the highest, namely 1.2 in isolate RG1. Among these isolates, RG1 is Gram-positive and grows optimally at pH 5, temperature 30°C. Based on the results of the phylogenetic analysis, it is known that this potassium solubilizing isolate has the same level of similarity with the bacterium Bacillus subtilis.
Keywords: Bacillus, indigenous, potassium, solubilizing index, temperatur
Evaluasi Arachis pintoi sebagai Biomulsa dalam Memperbaiki Kesuburan Tanah pada Pertanaman Jagung di Kemiringan Lahan yang Berbeda
Get PDFExpanding agricultural land by using sloping dry land can be detrimental to the environment due to soil erosion and degradation. However, cover crops can be one of the technologies applied to reduce these risks. Arachis pintoi is one of cover crops that can be used as bio mulch on agricultural land. The study aimed to evaluate the effect of A. pintoi bio mulch on soil nutrient contents and maize plant growth at different slopes. A nested randomized block design was used in the study. Two levels of land used as the main factor and the type of mulch consisting of five levels (without mulch with weeding, without mulch without weeding, silver-black plastic mulch, straw mulch, and A. pintoi bio mulch) were used as the second factor. The results showed that A. pintoi bio mulch significantly increased the P content of the soil and could potentially increase several other macronutrients, especially C-organic, N, and Ca. The use of A. pintoi bio mulch with a cover technique that was left to cover the entire soil surface suppressed the growth and yield of maize plants compared to the control treatment.
Keywords: cover crops, mulch, ornamental peanut, soil fertility, rice stra
Dampak Lingkungan dari Penambangan Pasir Ciapus dan Margin Usahanya
Get PDFBogor is one of the cities with a very rapid development rate, so the need for sand for construction is very high. There are plenty of sand sources in Bogor, feeding by 2 major rivers and 7 tributaries, including the Ciapus River. This river is a job opportunity for sand miners. Based on the study results, the traditional sand mining model is applied. The income from the sand miners is IDR100,000/m3, while the income from the collectors who also distribute the sand to the users is IDR150,000/delivery. The positive impact of this activity is that it can reduce sedimentation in the Ciapus River, while the negative impact is that it caused a change in the shape and function of the river and the road damage around the mining due to the sand transportation, but not on the road within the housing area. In the long term, this activity needs more attention because until now, the Bogor Kota Government still needs to have a regulation regarding type C mining.
Keywords: type C mining, mining law, sand mining, sand transportation, traditional minin
Perilaku Konsumen Kopi: Proses Keputusan dan Kepuasan Konsumen Membeli Minuman Kopi Berlabel Fair Trade
Get PDFFair Trade (FT) coffee has a higher production volume than other coffee certifications. This phenomenon is triggered by a shift that is influenced consumer behavior patterns. This study analyzes consumer characteristics, purchasing decisions, and satisfaction in buying FT coffee. A cross-sectional study with a quantitative approach was used as the research design. Data were obtained by distributing online questionnaires to 120 respondents using a voluntary sampling technique. Data were analyzed using descriptive analysis, Customer Satisfaction Index (CSI), and Importance Performance Analysis (IPA). The results showed that most respondents were male, with an undergraduate degree and unmarried status. Trends and easy to get drink influence the main reason for purchasing. The main source of information comes from friends who focus on the coffee\u27s taste and flavor. Consumers will continue to buy coffee even though prices have increased. Through CSI calculation, customer satisfaction is worth 74.04%. The results of the IPA calculation show that the main attributes to be improved are price, sales location, and information provision. The results of this study can be used as information on developing a marketing strategy that is adjusted to evaluate consumer expectations.
Keywords: characteristics, consumer behavior, fair trade coffee, purchasing decision, satisfactio