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1.
Safeguarding the multifunctional role of agriculture in Slovenia
Darja Majkovič, Karmen Pažek, Andreja Borec, Jernej Turk, Črtomir Rozman, 2004, objavljeni znanstveni prispevek na konferenci

Ključne besede: multifunctional agriculture, policy measures, organic farming, Slovenia
Objavljeno: 05.06.2012; Ogledov: 706; Prenosov: 5
URL Celotno besedilo (0,00 KB)

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POTENTIAL INDICATORS FOR Sustainability assessment of food production on the field level
Saša Štraus, 2012, doktorska disertacija

Opis: The issue of sustainable agriculture has attracted considerable attention. Sustainable agriculture encompasses economic viability, social acceptance, conservation of the environment, and food quality. The present thesis aims to evaluate the sustainability of conventional (CON), integrated (INT), and organic (ORG) production systems (PS). The assessment of sustainability of different PS was made in terms of the four most significant aspects of sustainability—agronomic, economic, environmental, and food quality—at the field level (i). Agronomic parameters such as the number of leaves, leaf area index, fruit characteristics, and seed/oil yield and economic feasibility were evaluated for oil seed pumpkin (ii). The environmental sustainability was assessed through the ecological footprint and weed biodiversity index (iii). The study of food quality determined the internal quality (total phenol, sugar, organic acid, vitamin C, mineral, and nitrate content and antioxidant activity) and sensory evaluation (iv, v). The sustainability of the PS for the four crops was assessed using a qualitative multi-attribute model (DEXi methodology (vi). Because field trial was conducted in protected landscapes (PL), the options for the development of PLs with the ORG PS were evaluated. To obtain the data, a field trial was conducted on a 4000 m2 area in the years 2008 to 2011. Wheat, oil seed pumpkin, red beet, and cabbage grown by the three different PSs—CON, INT, and ORG—and a control plot were studied. They were arranged in a randomized complete block split-plot design with four replications. The production systems differed in plant protection and fertilization strategies, as defined by legislation and standards. Survey of literature point out that indicator are the basis of assessing sustainability, the assessment of sustainability should encompass at least three pillars of sustainability (i). Agronomic parameters (ii) and economic feasibility were evaluated for oil seed pumpkin in the field trial. The leaf area index differed significantly between CON (4.8 for CON and 4.1 for ORG) and other production systems at later growth stages (BBCH = 600-700), and it was highly correlated with the yield (808 kg ha-1 for CON and 723 kg ha-1 for ORG). The yield and all agronomic parameters were significantly lower in ORG; however, the economic feasibility analysis showed that the financial results could be higher because of lower production costs (1.784 € ha-1 for CON and 1.434.5 € ha-1 for ORG) and higher product prices. The same economic feasibility analysis results were also obtained for cabbage and red beet (iii). The Biodiversity Ecological Footprint index (iii) were interpreted using the SPIonExcel tool and the Shannon-Weaver Diversity Index for the weeds species diversity. The ecological footprint of ORG was 3.3 times lower than that of CON (21 ha to 70 ha), and the Shannon-Weaver diversity index of ORG was significantly higher than that of CON (which was 20% higher, 0.66 for CON and 0.86 for ORG). The internal quality were studied for red beet and white cabbage. Sensory evaluation of sauerkraut samples was made. In the case of red beet, the differences were significant for vitamin C (23.3% higher for ORG than for CON), antioxidant activity (30.3% higher for ORG than for CON), and some microminerals (Na, Cu, Fe, Mn, and Zn) (iv). In the case of cabbage, a significantly lower amount of P and N and a significantly higher amount of Na, Mg, and total phenols (in ORG 0.360 GAE mg g-1 FW and in CON 0.310 GAE mg g-1 FW) was found for ORG than for CON cabbage. The concentration of nitrates is significantly lower in ORG (530 mg kg-1 for CON and 370.37 mg kg-1 for ORG). The sensory evaluation of sauerkraut samples was performed by 100 consumers using a nine-point hedonic scale. The ORG and control samples were evaluated significantly better than the INT and CON samples (overall acceptability was 5.94 for ORG and 5.34 for CON) (v). The core of the qualitative multi-model (DEXi methodology) is a hierarchical tree that divides
Ključne besede: Sustainable agriculture, agronomic parameters, environmental parameters, economic feasibility, food quality, DEX, protected landscapes
Objavljeno: 29.11.2012; Ogledov: 1633; Prenosov: 166
.pdf Celotno besedilo (1,79 MB)

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Application of analytical hierarchy process in agriculture
Karmen Pažek, Črtomir Rozman, 2005, izvirni znanstveni članek

Opis: Hierarchical decision models are a general decision support methodology aimed at the classification or evaluation of options that accur in desion-making processes. Decision models are typically developed through the decomposition of complex decision problems into smaller and less comple subproblems. This paper presents an approach to the development and implementation of multicriteria decision model based on Analytical Hierarchy Process - AHP (Expert Choice, EC). Likewise, the AHP is used as a potential multicriteria decision making method for application in agriculture. In order to show the implementation of explained MCDA methods in real situation in agriculture, theapplication of AHP on a sample model farm is presented in the second part of the article.
Ključne besede: multicriteria decision analysis, MCDA, analytical hierarchy process, AHP, decision support system, DSS, agriculture
Objavljeno: 20.07.2017; Ogledov: 58; Prenosov: 2
.pdf Celotno besedilo (177,82 KB)

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Decision making under conditions of uncertainty in agriculture
Karmen Pažek, Črtomir Rozman, 2009, pregledni znanstveni članek

Opis: In decision under uncertainty individual decision makers (farmers) have to choose one of a set number of alternatives with complete information about their outcomes but in the absence of any information or data about the probabilities of the various state of nature. This paper examines a decision making under uncertainty in agriculture. The classical approaches of Wald’s, Hurwicz’s, Maximax, Savage’s and Laplace’s are discussed and compared in case study of oil pumpkin production and selling of pumpkin oil. The computational complexity and usefulness of the criterion are further presented. The article is concluded with aggregate the results of all observed criteria and business alternatives in the conditions of uncertainty, where the business alternative 1 is suggested.
Ključne besede: uncertainty, Wald’s, Hurwicz’s, Maximax, Savage’s and Laplace’s criterion, decision support system, agriculture, oil crops
Objavljeno: 20.07.2017; Ogledov: 76; Prenosov: 2
.pdf Celotno besedilo (174,59 KB)

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Proceedings XI. International Conference on Logistics in Agriculture 2017
2017, zbornik

Opis: 11th International Conference of Logistics in Agriculture is a traditional conference in the field of logistics, which is very important in agriculture. The conference is organized by the Municipality of Sevnica, Grm Novo mesto – Centre of Biotechnics and Tourism, University of Maribor, Faculty of Logistics and Landscape Governance College. This year the topic of the conference is Short supply chain in Logistics in Agriculture. Our conference proceedings have several papers on different topics which are especially dealing with the distribution of locally produced food. This is one of the most important things for improving the tourism in the region. A part of this year’s conference is also a Round table on Challenges of plastics in agriculture.
Ključne besede: agriculture, logistics, locally produced food, waste, packaging
Objavljeno: 16.11.2017; Ogledov: 32; Prenosov: 1

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