Journal of the Austrian Society of Agricultural Economics (JASAE)

Abstract : Positioning and guiding robots is one of the significant issues in mobile robotics. Positioning and navigation are essential for indoor workshops because GPS signals have no effect and significant errors. There are many solutions for indoor robot positioning, such as odometry, INS, ultrasonic, laser range finder (LRF), computer vision [1- 3], and RF positioning systems such as RSSI [4], [5], UWB [6- 11], chirp spread-spectrum (CSS) [13]. In this paper, we use UWB, combine IMU to locate the robot in the house, dead reckoning [14], and Kalman [15] extension to filter the signal under the embedded dspic32 chip..
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Abstract : A comprehensive assessment to determine species composition of a logged-over dipterocarp forest in Kahupian, Sogod, Southern Leyte was conducted as contribution in documenting vegetation in remaining dipterocarp forest patches of the Philippines. The species composition was described by way of Braun-Blanquet (1964) methodology. The study had three sampling sites. Ten plots per sites were taken, at plot size of 20m x 20m and total area of sampled stands of 1.2ha. A total of 154 species, in 60 families and 104 genera, were recorded in the inventory. Of these, 131 are tree species and 23 are non-tree. The 131 tree species belong to 44 families and 84 genera. The 23 non-tree species were in 17 families and 22 genera. The highly represented tree families were the Dipterocarpaceae, with 13 species. Tanguile (Shorea polysperma), mayapis (Shorea palosapis) and white lauan (Shorea contorta) were the most frequently dominating and widespread within the site. The Jaccard similarity index in comparing the 3 sampling sites was 0.39 to 0.44, which indicated less than half of the species occurred commonly in any two sites. This suggests high variation in species composition from site to site and that intensive and extensive data collection is needed before a final assessment on floral diversity in Southern Leyte should be attempted..
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Abstract : Khok Nong Na model (KNNM) is currently introduced to farmers in Thailand as an efficient farm practice to operate agriculture, through maximizing land use and water conservation, to improve livelihood. This study focuses on farmers’ social-ecological factors influencing the adoption of KNNM. A questionnaire was systematically built based on bottom-up approach with elements of related literature. This was an attempt to formulate the fine-tuned questionnaire for the quantitative examination. Data collected from 200 farmers in Kut Chum district, Yasothon Province were used to study the social, economic, and environmental factors that determine the adoption of KNNM. The results showed that the most significant factor bolstering farmers’ adoption intention was environmental benefits such as adjusting the land use for being more suitable for agricultural activities. Also, the influence of social factors contributed positively to the adoption of KNNM was observed. Most notably, participating in KNNM to evolve farms to learning centers to earn respect from the community and the comprehensiveness of resources facilitated by organizations. These findings shed light on how to establish strategies to encourage farmers to embrace KNNM..
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Abstract : The purpose of this study is to determine the impact of welfare distribution on import taxes. government revenues, consumer spending, producer revenues, efficiency losses (production, consumption, net effect) and level of competitiveness of cane sugar Indonesia by Domestic Resource Cost (DRC) calculation. This research was conducted from July to October 2022. The study used secondary data From relevant previous studies and other references such as journals, journals and bulletins Such. The findings show changes in government revenue, consumer surplus, Producer Surplus, Net Economic Losses in Production and Consumption, and Currency Gains Economicization is subject to import tariffs and price elasticities related to supply and demand. that It also showed that the competitiveness of Indonesian sugar products is higher than that of the same products. Other countries because the value of DRC is less than one..
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Abstract : Hydroponics crop production has significantly increased in recent years worldwide, which allows an efficient use of water and fertilizers, as well as better control of climate and pest factors. Furthermore, hydroponics production under protected structure can increase crop quality and productivity, which results in higher competitiveness and economic incomes. The study was conducted to evaluate the postharvest quality of honeydew melon (Cucumis melo L. var. inoduros) under aggregate hydroponic system using inorganic and organic nutrient solutions. Randomized Complete Block Design (RCBD) was used in this study with two test factors: Factor A – with and without foliar application of fermented malunggay and Factor B- Organic and inorganic nutrient solutions and combinations, replicated three times. Results revealed that honeydew fruit were harvested at the average days of 56 with 80-95% plants survival. Postharvest quality and properties, the free radical scavenging activity (FRSA), Chlorophyll a and b, carotenoids, vitamin C and oxidation-reduction potential were significantly affected by the different treatments. FRSA was higher in honeydew melons applied with the combination of trichantera and commercial nutrient solution. Fermented golden snail treatment obtained the highest value of chlorophyll a and b and fermented trichantera gave the highest total carotenoids. Commercial nutrient solution and fermented trichantera obtained the highest vitamin C and Oxidation-reduction Potential, respectively..
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