Iskanje po katalogu digitalne knjižnice

Opis: Hedge bindweed (Calystegia sepium L.) is a widespread troublesome perennial weed species that has strong rhizome regenerative capacity. Four pot trials with randomised, complete block designs were conducted in 2015 to evaluate long-term control of hedge bindweed using individual, tank mixture, and sequential applications of selected herbicides. Two different formulations of N-(phosphonomethyl) glycine (glyphosate; isopropylamine, trimesium salts) were applied at 2000 g active ingredient (a.i.) ha−1. Additionally, two synthetic auxins were applied as 3,6-dichloro-2-methoxybenzoic acid (dicamba) at 500 g a.i. ha−1 and the dimethylamine salt of (2,4 dichlorophenoxy)acetic acid (2,4-D) at 1000 g a.i. ha−1. Tank mixtures and sequential applications (12/24 h separation) of these different herbicides were also included. Long-term control of hedge bindweed, Calystegia sepium L., growth was evaluated 8 months after treatments, as comparisons of shoot and rhizome growth (biomass) between untreated and treated plants. There were no differences between the two formulations of glyphosate alone, with shoot and rhizome biomass reductions of 83% and 42%, respectively. Dicamba alone inhibited shoot and rhizome biomass by 86% and 67%, respectively. By itself, 2,4-D provided the greatest reductions in shoot and rhizome biomasses, 93% and 79%, respectively. Antagonism was seen in the tank mixtures of glyphosate and dicamba or 2,4-D. Tank mixtures were generally comparable to treatments of glyphosate alone, and were less effective compared to dicamba or 2,4-D alone. The greatest reduction of bindweed rhizome biomass was for sequential glyphosate trimesium salt followed by 2,4-D 12 h later, thus showing significantly greater efficacy over glyphosate isopropylamine salt (94% vs. 84%; p ≤ 0.05). These data for reductions of the growth of the rhizome biomass show that the sequential application of glyphosate followed by 2,4-D significantly improves long-term control of hedge bindweed.
Ključne besede: hedge bindweed, perennial weeds, rhizome control, weed management, herbicide efficacy
Objavljeno v DKUM: 24.01.2025; Ogledov: 0; Prenosov: 5
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Opis: Purpose: In terms of providing security, employee engagement may be defined as an important contribution by individual criminal investigators or their physical, cognitive and emotional dedication to their work. Employee engagement positively correlates with one’s work, as reflected in the dedication, absorption, and psychological state accompanied by personal energy invested in the work. A fundamental question for the criminal investigation police thus arises of how to achieve maximum engagement and commitment in police work, which in turn will contribute to greater security in Slovenia. Design/Methods/Approach: The article is based on empirical research conducted among 160 Slovenian criminal investigators. We used Gallup’s Q12 Employee Engagement Survey to measure employee engagement. Findings: The research encompassing 160 Slovenian criminal investigators shows that most criminal investigators are disengaged. The research also reveals that employee engagement is statistically significantly correlated with self-efficacy, social undermining by one’s supervisor, social support by one’s supervisor and colleagues, as well as cynicism. To raise employee engagement among the Slovenian criminal investigators, we propose several measures affecting the conduct of the police, labour legal matters, operational issues and the leadership. Research Limitations / Implications: The first limitation is social desirability bias. The second limitation is a labour strike that was underway while we were collecting the data from the police officers. Practical Implications: The proposed actions should raise the level of employee engagement of Slovenian criminal investigators, while also enhancing the police service’s reliability. Originality/Value: This is the first paper to research employee engagement among Slovenian criminal investigators.
Ključne besede: employee engagement, criminal investigators, cynicism, self-efficacy, social undermining, social support
Objavljeno v DKUM: 15.04.2020; Ogledov: 1108; Prenosov: 63
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Opis: This paper aims to shed light on the level of social acceptance among students with learning disabilities (LD4 ) in various secondary school vocational programs in comparison with their peers without disabilities. Our findings are based on an empirical study that comprised 417 students, 5 of whom 85 were students with LD. Based on sociometric analyses of all participating classes, we determined that students with LD were less integrated into the classroom in comparison to their peers without LD. The results of the sociometric analysis show statistically significant differences in the sociometric position between students with LD and students without LD. While students with LD were most frequently perceived as rejected, students without LD were seen as popular or average. In addition, students with LD see themselves as less socially self-efficient compared to their peers. The results of our study mostly refer to boys, because the sample comprised 359 boys and 58 girls. We believe that pro-inclusion teachers with appropriately developed strategies for strengthening students' social skills, as well as positive attitudes and sufficient knowledge about the special needs of students can have a significant impact on the social acceptance of students with special needs in the classroom community.
Ključne besede: students with learning disabilities, social integration, social self-efficacy, social acceptance, sociometric status, secondary school vocational education
Objavljeno v DKUM: 13.07.2017; Ogledov: 2162; Prenosov: 157
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Opis: A comparison of the biological efficacy of pesticides applied against some apple pests with standard versus drift-reducing nozzles was made in trials in intensive orchards in Slovenia. Standard and drift-reducing nozzles were compared by applying 350 L spray per hectare. No significant differences in acaricide/insecticide efficacy between the types of nozzles could be observed when controlling fruit tree red spider mite (Panonychus ulmi) and apple rosy aphid (Dysaphis plantaginea). However, drift-reducing nozzles reduced the efficacy of insecticides against the codling moth (Cydia pomonella), green apple aphid (Aphis pomi) and apple leaf miner (Leucoptera malifoliella).
Ključne besede: apple, spraying, drift-reducing nozzles, biological efficacy, insecticides, Aphis pomi, Cydia pomonella, Dysaphis plantaginea, Leucoptera malifoliella, Panonychus ulmi
Objavljeno v DKUM: 01.06.2012; Ogledov: 2028; Prenosov: 118
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