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The incidence of wheat crown rot depending on agronomic practices
2017
Paulovska, L., Latvia Univ. of Agriculture, Jelgava (Latvia);Agroķīmija, Saldus SIA, Birzītes, Saldus parish, Saldus Municipality (Latvia) | Bankina, B., Latvia Univ. of Agriculture, Jelgava (Latvia) | Roga, A., Latvian Biomedical Research and Study Centre, Riga (Latvia) | Fridmanis, D., Latvian Biomedical Research and Study Centre, Riga (Latvia)
Wheat crown rot is a harmful disease that can be caused by different pathogens. The control of this disease is complicated because of the diversity of pathogens and an insufficient efficacy of fungicides; therefore, the agronomic practices of wheat production are an important tool for reducing the disease development. The aim of this study was to estimate the incidence of wheat crown rot depending on soil tillage system and on the pre-crop of wheat in the year 2016. The field experiment was carried out at the Research and Study farm ‘Peterlauki’ of the Latvia University of Agriculture in the autumn of 2008. The data obtained in 2016 are analysed in this study: A – soil tillage system: 1 – traditional soil tillage with ploughing at the depth of 22 – 24 cm, 2 – reduced soil tillage with disc harrowing up to the depth of 10 cm; B – pre-crop of winter wheat: 1 – wheat, 2 – oilseed rape, 3 – faba beans. The incidence of crown rot was not influenced by soil tillage system, but the impact of pre-crop was significant (p = 0.006). The level of disease was essentially higher in continuous wheat sowings. The experiments showed that the main causal agents of the disease were Fusarium spp. and Oculimacula spp. The spectrum of pathogens was not dependent on a particular agronomic practice.
Показать больше [+] Меньше [-]Number of services per conception and its relationship with dairy cow productive and reproductive traits
2017
Cielava, L., Latvia Univ. of Agriculture, Jelgava (Latvia) | Jonkus, D., Latvia Univ. of Agriculture, Jelgava (Latvia) | Paura, L., Latvia Univ. of Agriculture, Jelgava (Latvia)
The aim of our study was to determine up to what extent the number of services per calving (NSPC) affects dairy cow productive and reproductive performance. The study contains data from the Agricultural Data Centre of Latvia about 26888 Latvian Brown (LB) and Holstein Black and White (HBW) breed cows that were born from year 2005 – 2010, closed at least 5 full lactations and were culled from herds. In data set we have included data about cow milk productivity (calculated in ECM), longevity traits and reproduction traits. The reproduction traits included the number of services per conception (NSPC), calving interval (CI) and calving to conception interval (CCI) in the first five lactations. The average lifespan of LB and HBW dairy cows was 3149.5 days and in this period 39570.6 kg ECM were obtained. LB breed cows were characterized by 23.5 days longer lifespan and by 6035.4 kg ECM lower lifetime milk productivity than HBW breed cows, but they showed higher reproduction trait scores than LB breed group. HBW cows had a significantly (p is less than 0.05) higher NSPC, CCI, number of milking days (MD) and CI than LB breed cows in all five analysed lactations. The NSPC in the first lactation increased the calving age at the fifth lactation – cows with NSPC in the first lactation is greater than 4, fifth time calved 170.7 days in LB breed group and 190.8 days in HBW breed group later than cows with one NSPC in the first lactation.
Показать больше [+] Меньше [-]The influence of kappa-casein and beta-lactoglobulin genotypes on milk coagulation properties in Latvia dairy breed
2017
Petrovska, S., Latvia Univ. of Agriculture, Jelgava (Latvia) | Jonkus, D., Latvia Univ. of Agriculture, Jelgava (Latvia) | Zagorska, J., Latvia Univ. of Agriculture, Jelgava (Latvia) | Ciprovica, I., Latvia Univ. of Agriculture, Jelgava (Latvia)
Milk yield, composition and milk coagulation properties can be affected by kappa-casein (κ-CN) and beta-lactoglobulin (β-LG) genotypes and breed. Latvian Brown (LB) and Latvian Blue (LZ) are local dairy breeds in Latvia. These breeds are not so high-yielding than other commercial dairy breeds, besides, the number of those animals decrease each year. The aim of the research was to analyse the influence of κ-CN, β-LG and breed on milk composition and milk coagulation properties. Data were collected from 56 Latvian Brown and 26 Latvian Blue in 2016. Widespread κ-CN genotype was AA (0.593) in LB breed and AB (0.636) in LZ breed, while β-LG highest frequency was BB genotype. Significant effect was not observed on milk yield; however the highest daily milk yield was from AB κ-CN genotype (19.7 ± 1.52 kg) in LB breed. Significant differences were observed in fat content – the highest fat content accordingly κ-CN was from AA genotype in LB (46.3 ± 1.89 g kgE-1) and 45.5 ± 1.37 g kgE-1 from BB β-LG genotype in LB breed (p is less than 0.05). A lower protein content was observed from AA κ-CN genotype in LZ breed (33.8 ± 1.30 g kgE-1), while highest from BB genotype in both breeds. Curd firmness was not significantly different by genotypes and breed. Significantly shorter milk renneting time of β-LG was obtained from LB breed (14.6 ± 2.76 min, p is less than 0.05), while κ-CN genotype was not significantly affected.
Показать больше [+] Меньше [-]Concentrate distribution to sheep using automatic feeding station
2017
Senfelde, L., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kairisa, D., Latvia Univ. of Agriculture, Jelgava (Latvia)
The research was conducted with the aim of studying the possibility of using automatic feeding stations for individual sheep (Ovis aries) feeding. The research was organized in 3 periods, in which 10–13 months old sheep – female only (1st research period), 6–10 months old sheep – female only (2nd research period) and 8–12 months old sheep – female only (3rd research period) were used. Part of the sheep did not visit the feeding station at all. Sequentially, over the research periods the percentage was 13%, 37% and 49%. Upon setting the concentrate daily ration 400 g per sheep, on the average the number of visits to the particular feeding station was 6.1 and 4.7 (sequentially in the 1st and 2nd research period). Upon increasing the concentrate ration amount up to 700 g per day, the average number of feeding station visits was 6.9 (in the 3rd research period). The number of visits to the automatic feeding station was varied (V is greater than 10%). Over the research period live weight of the sheep increased significantly (p ≤ 0.05) for the subgroups of animals which made visits to the feeding station regularly during the entire research period. In all research periods, the average daily concentrate intake (373.5 g in the 1st research period, 333.1 g in the 2nd research period and 581.2 g in the 3rd research period) was 93%, 83% and 83% respectively, of the maximum established feeding standard.
Показать больше [+] Меньше [-]Smart specialisation strategy assessment in Baltic States
2017
Gemma, S., Latvia Univ. of Agriculture, Jelgava (Latvia) | Bulderberga, Z., Latvia Univ. of Agriculture, Jelgava (Latvia)
Smart specialisation strategy (RIS3) is topical for each European Union member state – including the Baltic States. It is a smart tool for the European Union (EU) Structural Funds absorption from 2014 to 2020. Each EU member state has set their own priorities based on the country specialisation and economy strengths and weaknesses. For RIS3 development evaluation, there is RIS3 Assessment Wheel developed – a tool for assessing the RIS3 in a chosen region and positioning it between other regions. The aim of research is to find main differences between RIS3 development in the Baltic States. The tasks of research are 1) to compare existing RIS3 Assessment Wheel of Latvia and create authors version of RIS3 Assessment Wheel of Latvia; 2) to create RIS3 Assessment Wheel of Lithuania and Estonia; 3) to make comparisons between created RIS3 Assessment Wheels. The research performed is mainly based on the desk research by using content analysis and the monographic method. In all three Baltic States, there is a lack of information available about revision of priorities in connection with RIS3 development. In order to achieve the aims set in RIS3, it is essential to finish work on RIS3 legislation in Latvia, and introduce the systematic approach to RIS3 target evaluation in all Baltic States.
Показать больше [+] Меньше [-]Analysis of rural areas development of the region using the ADL-model [Russian Federation]
2017
Didenko, N., Peter the Great St. Petersburg Polytechnic Univ. (Russian Federation) | Skripnuk, D., Peter the Great St. Petersburg Polytechnic Univ. (Russian Federation) | Mirolyubova, O., Peter the Great St. Petersburg Polytechnic Univ. (Russian Federation) | Radion, M., Tyumen State Univ. (Russian Federation)
The paper presents an approach for the analysis of rural areas’ socio-economic development. Rural regions include spheres of human activity: institutional, environmental, social, labour, industrial, economic, technological development spheres. Under the development of the rural regions, changes in the variables of different spheres of human activity in the region, increasing the potential for human development, is understood. Human Development Index measures the potential for human development measurement. The model of socio-economic development of the rural regions presented in the article is characterized by both endogenous and exogenous variables of the model. Model of socioeconomic development of the rural regions is presented in the form of six econometric equations, each of which is an ADL-model. Each ADL-model contains endogenous and exogenous variables. The article presents the structural form of a system of economical equations in each one equation there is more than one endogenous variable. It shows the transition from the structural form to the form of the system of economical equations, where each equation has only one endogenous variable. The system of equations was developed for the rural regions of Russia. Baseline data were obtained from the database of the State Statistics Committee of Russia. The article provides a solution to the system of equations. The solutions to the model can be used for developing strategic development of each separate rural region or a combination of all the rural regions.
Показать больше [+] Меньше [-]Geographical tendencies of main produce imports of Latvia 2000-2015
2017
Berjoza, A., University of Latvia, Riga (Latvia) | Paiders, J., University of Latvia, Riga (Latvia)
Foreign trade as part of the main economic relationship between a country and the global market, its regions and super-players is a significant research object. This paper deals with a particular case, exploring Latvian import in first one and a half decade of the 21st century. Since in Latvian academic society economic issues are largely dominated by economic scientist, this is an attempt by geographer to look at special aspects of mentioned ties and relationships. Research is focused around main producing sectors of economy such as agriculture, fisheries and forestry. With the aim of establishing clear ties between Latvia and its major import markets, the statistics of foreign trade was analysed using frequency analysis. The research shows that Latvian major import markets, although, similarly with its export markets, are located in the Baltic Sea region and have some differences. Major import markets are usually countries with bigger internal market, than Latvia’s. Import does follow the pattern of export markets in its separation into East and West groups with similar characteristics. Major difference, however, is differentiation of markets, where majority of high quality goods are being imported from a wider variety of markets, in contrast to export, where consolidation was a major pattern. This shows a rather close competition on world markets for potential clients, and a way for further economic change in Latvian industrial structure and operations.
Показать больше [+] Меньше [-]Support payments for agriculture and rural development in Latvia
2017
Pilvere, I., University of Latvia, Riga (Latvia) | Nipers, A., University of Latvia, Riga (Latvia) | Pilvere-Javorska, A., Baltic Advisory, SIA, Dobele (Latvia)
The European Union (EU) Common Agricultural Policy (CAP) affects the development of the agricultural industry and rural areas in all the Member States. A very important role is played by various support payments as one of the policy instruments. The CAP has been developing and is being reformed; therefore, it is important to assess the effect of various CAP support instruments on the development of the agricultural industry. Therefore, the research aim is to assess the support instruments and kinds of support as well as their effects on selected agricultural indicators. The research study proceeds in three stages or phases: first, the identification of the total amount of support payments paid and the key kinds of support; second, a detailed analysis of the key kinds of support; third, the identification of associations between the amounts of support payments and other agricultural and farm performance indicators. The research found that in the period 2005 – 2014 in Latvia, the total amount of support amounted to EUR 4.3 billion, of which EUR 520 million or 12% were received by approximately 1000 FADN farms. The most significant kinds of financial support in Latvia were direct payments, accounting for 47% of the total amount of support and financial assistance provided for rural development with 39%. The total amount of financial support and the amount of area-based payments affected the key agricultural indicators as well.
Показать больше [+] Меньше [-]Creative synergy as a potential factor for the development of social innovations
2017
Pakeltiene, R., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania) | Ragauskaite, A., Aleksandras Stulginskis Univ., Akademija, Kauno reg. (Lithuania)
In today‘s context of social sciences and practical discussions teamwork, synergy and synergy effects are considered to be one of the most important research objects. Creativity leads any organizational structure to successful solution of a problem and promotes the achievement of not individual but synergy goals, which are the result of generated and practically applied social innovations. The potential of teamwork synergy is transmitted through team dynamics, team creative process, as well as team purpose. The aim of this research is to identify the indicators describing the potential of synergy regarding team creative process and to evaluate their importance in the team creative process while developing innovative solutions. A case analysis method is applied: two different teams, which performed creative tasks, were chosen and analysed. In order to estimate the potential of synergy of creativity, a set of quantitative and qualitative indicators was formed. Features describing each indicator were evaluated by using questionnaires filled by the teams participating in the research. In addition, the teams were observed, in order to estimate the team creative process. The results of the research are valuable for authorities of organizations, who aim at greater synergy results and social innovations encouraging the development of public, social and business interests and creating multiplying effects of ideas. The generalized findings of the research are presented in the article, as well as the applied methods of scientific literature analysis and synthesis, abstraction.
Показать больше [+] Меньше [-]Ethical aspects of privatization process in the public agriculture sector
2017
Mioduszewski, J., University of Warmia and Mazury in Olsztyn (Poland)
Lease of farm lands is the most important process of proprietorial changes in the state’s agriculture sector. As an effect of turbulent socio-economic conditions and legal solutions resulting from country’s agricultural politics, its share in land’s management has significantly shrunk. Currently there is around 1.1 million ha of land in lease, which makes up for 23% of the land acquired by the Agricultural Property Agency of the State Treasury. After 23 years of 3.2 million ha of lands acquired by the Resource (68.5%) has already been managed permanently and 2.5 million ha (53%) have been sold. Lease allows fast temporary management of the farm lands acquired by the State’s Treasury, and a buying- out, mostly by the hitherto leaseholders, afterwards. The range and the structure of area of sales agreement of farm lands indicates that it was acquired by a relatively small group of buyers. Such a structure of permanent management of the State’s Treasury’s farm lands might bring some hesitations and questions on rationality of the proprietorial changes from the social interest view and ethics.
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