ISSN 2284-7995, ISSN Online 2285-3952
 

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Marina NIKOLOVA, Pavlin PAVLOV

The rural development policy in Bulgaria is aimed at achieving sustainable development of the economic sectors, as the rural area is a place for development not only for agricultural activities, but also it offers good prospects for economic development on a regional scale, through adequate business support, job creation and tourism development. Therefore, the interconnection and interdependence between the two economic sectors is especially important to find opportunities for the development of alternative tourism with the formation of unique tourism products and the application of environmentally-friendly agricultural practices in order to achieve higher living standards and economic benefits for local communities. The problem is that the current pandemic conditions of last year and this year impose a number of restrictions to a greater or lesser extent on each of the economic sectors. The aim of our research is related to the study of interconnection and interdependence of key economic sectors – agriculture and tourism in crisis conditions. The research methods used in the study include: basic scientific research methods, questionnaire survey, summary and synthesis, logical method, tabular and graphical presentation of characteristics and trends. The results of the research can be systematized in several directions: analysis of the connections and interdependence of the sectors through the opportunities for creation of unique tourist products and through diversification of the activities in the rural areas. In conclusion, the pandemic inevitably affects the economic sectors, with greater constraints on the tourism business, where the preferences of potential tourists are focused on domestic alternative tourism. In the construction of unique and specific tourist products in rural areas, the relationship agriculture – tourism is strongly emphasized in terms of requirements for clean and healthy foods, incl. organic food or the purchase of local food products from the region. The diversification of activities in rural areas through the development of tourism provides an opportunity for the development of entrepreneurial initiatives. The strong connection and interdependence between the economic subjects in the indicated economic branches of key importance is fully manifested in a good combination of the interests of all participants concerned in the process of development of the specific territory/region.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Ahmed Olugbenga BUSARI, Adetunji Lawrence KEHINDE

The study examined the influence of macro-economic variables on agricultural trade flows between Nigeria and her trading partners. Time series data covering the period between 1970 and 2019 were used in the study. Data were analysed using descriptive statistics and a gravity model. Results of the descriptive analysis revealed a declining trend in earnings from agricultural exports, while expenditure on agricultural imports increased significantly, resulting in a deficit balance of agricultural trade in Nigeria over the study period. Results of gravity model analysis showed that exchange rate, agricultural export tax, Nigeria’s Gross Domestic Product (GDP) and Nigeria's population positively influenced agricultural trade flows, while the distance between Nigeria and United Kingdom negatively influenced agricultural trade flows. The study concluded that bilateral agricultural trade between Nigeria and her trading partners in the study is elastic to exchange rate, agricultural export tax, Nigeria GDP, Nigeria population, and distance between Nigeria and United Kingdom. Thus, effective and efficient monetary and fiscal policies to monitor exchange and export tax in the economy and improved bilateral trade agreements will ensure a friendly macro-economic environment that will stimulate mutual benefits from agricultural trade for both partners.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Gjore NAKOV, Zlatin ZLATEV, Iliana LAZOVA-BORISOVA, Jasmina LUKINAC

Proper management and valorization of waste from wine production is an important and difficult issue for winemakers. This type of waste contains valuable biologically active substances (dietary fiber, fats, polyphenols, etc.). With proper treatment, this waste can be used to produce new functional foods. The aim of the article is to determine the exact amount of grape pomace powder (GPP) in cakes using statistical data processing using the "Correspondence Analysis" method and using an initial model (second-order polynomial). Determination coefficient (R2), model coefficients, their standard error (SE), t-statistics (tStat), p-value, Fisher's criterion (F) are determined. An analysis of the residuals is made, which are determined by the difference between the values of the model and the actually measured ones. Stat Soft Statistica 12 (Stat Soft Inc.) software was used to create these models. The determined values are: coefficient of determination R2=0.89-0.92; F (2.47)critical; SE=0.01-0.09, models describing the indicated dependences were obtained. Using the applied linear programming algorithm, it is determined that the optimal amount of GPP=4.72%.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Romulus IAGĂRU, Iuliana Carmen BLĂNARU

This paper analyzes a topical issue, namely the lease and concession of agricultural land belonging to the public and private domain of the state, with the pointing of the particularities of land allocation in the case study, conducted in Sibiu County. It is an extensive study based on important opinions expressed by the literature and statistical data provided by the National Institute of Statistics in Romania. Specifically, the scientific research undertaken aimed at studying historically and comparatively the evolution of leasing and concession contracts in our country. It highlights the steps to be followed to become a contractual partner of the two types of contracts, the procedure for carrying out and pursuing these contracts by the State Domains Agency both at national and local level. The methodology used is the case study and is based on the secondary analysis of statistical data and relevant literature. In essence, the study highlights a set of elements with a role in highlighting the most common categories of rented and leased use, efficient management of state-owned agricultural land, improving soil quality, increasing revenues to the state budget.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Petar BORISOV, Teodora STOEVA, Violeta DIRIMANOVA

The purpose of this article is to develop and validate a methodology for analyzing and assessing the competitiveness of agricultural enterprises. The process of establishing a methodology for analyzing and assessing the competitiveness of agricultural enterprises covers two main stages – (1) identification of indicators for analyzing and assessing the competitiveness of agricultural enterprises and (2) validation of indicators for assessing the competitiveness of agricultural enterprises. The main methods used for designing the methodology are the multi-criteria analysis method and the expert assessment method. The markers for diagnostics of competitiveness of the agricultural enterprise are - competitiveness of the products produced by it; degree of adaptability towards the changing environment; price leadership and product differentiation; availability of innovation activity, degree of concentration of capital in the business model, etc.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Daniel DICU, Radu BERTICI, Mihai HERBEI, Florin SALA

The study used imaging analysis to monitor and predict production in sunflower culture under farm specific crop technology. The studied plot was located in the area of Cornesti, Timis County, Romania. Satellite images (Landsat 8) with a resolution of 30 m were taken, at 6 moments (T) between April and September, 2020. NDVI and NBR indices were calculated from the image analysis. The variation of the values of the indices calculated in relation to the time (days) for the studied period was faithfully described by spline models, with the values of the errors calculated ε = 0.0069in the case of NDVI and ε = 0.18945 in the case of NBR. The interdependent relationship found between the NDVI and NBR indices was described by a polynomial equation of degree 3, under conditions of R2=0.986, p=0.0015. Prediction of sunflower production (YP) based on the values of NDVI and NBR indices was possible under statistical safety conditions (R2=0.998, p<0.001). The variation of the prediction error, resulted from calculus, was between -0.331 kg ha--1 in the case of T4 indices (July 28) and 42.722 kg ha-1 in the case of T6 indices (September 6). The Similarity and Distance Indices (SDI) was used to evaluate the similarity of the vegetation stages on sunflower crop in relation to the moment of the image captures, based on NDVI and NBR indices. The highest degree of similarity was identified between moments T2 and T3 (images from May), in which case SDI = 0.05285. The study provided useful information on the temporal variability of sunflower crop and production prediction in relation to agricultural technology and is the basis of agricultural crop management models.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Tarek FOUDA, Mohamed EL-KHOLY, Adel ELMETWALLI, Dalia SLAEH, Shimaa SALAH

The optimum and safe storage treatment for cowpea and evaluate changes in quality during storage in different types of hermetic bags. Using two different pre-conditioning methods infrared heating and ultraviolet radiation compared with Non-treated on cowpea seeds before storage process. The aim of this study to discrimination of color change for Cowpea seeds were treated by FIR and ultraviolet UVC irradiation intensity, the seeds was stored in woven and hermetic bags (three & seven layers), the differences in Red color band increased from 161.3 to 197 when using the seeds that irradiated with FIR radiation and stored in 3 and 7Layers bag,, while at woven bag increased to 247.6 the differences in intensity I2 increased by using UVC radiation and stored in woven bag and the differences in R/G increased by 9.5% when using in the seeds that irradiated with FIR radiation and stored in three layers bag. the differences in Hue increased by 7.14% when using the seeds that irradiated with UVC and stored in three layers bag, The moisture content of seeds stored in woven bags increased to 14.82% in contrast with both types of hermetic bags which approached to 10.8% and 10.7% of three layers and seven layers bags respectively due to moisture absorption from surrounding air and also the released moisture due to high respiration rate of seeds and microorganisms. Seven-layer bags recorded the highest levels of Carbon dioxide concentration inside the bags which arrived at the end of storage period to 24.8%, 20.9 % and 20.5% for non- irradiated, infrared irradiated and ultraviolet irradiated bags respectively. Carbon dioxide inside the three-layer bags were to 19.7%, 16.9 % and 16.2% for the non -irradiated, infrared irradiated and ultraviolet irradiated treatments in respectively.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Tetiana YASHCHUK, Olena KORCHYNSKA, Borys SYDORUK, Halyna SYDORUK, Mariia HORUN

The article examines the influence of intensification of agricultural activities on soil quality, the dependence of humus content in soils on the dynamics of the technically available energy potential of crops grown in Ukraine in the regional context, as well as amount of organic fertilizers that can obtain from farm animal. A decrease in the humus content in the soils of Ukraine was established according to the obtained results. It is primarily due to increasing cultivation of soil-depleting crops and reducing the number of farm animals, waste products of which can use to restore land fertility. This situation leads to a loss of natural fertility of agricultural land and a decrease in their monetary value. It will require significant financial costs to further restore the quality characteristics of Ukraine's soils. The paper used a wide range of methods of statistical analysis, grouped administrative regions into clusters according to the study. Research data reveal a high correlation coefficient of the studied indicators within individual territories. The research results are expected to be used to plan the necessary measures to increase the environmental and economic efficiency of the agricultural land use system.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Jolanta DROŽDZ, Vlada VITUNSKIENĖ

This study aims at determining the main motives of economic decisions of Lithuanian agricultural entities to deepen farm specialisation. One of the assumptions is that the concentration and dominance of cereals farming is becoming more pronounced in Lithuania. In the course of the research, the methodology of expert evaluation of the motives of agricultural entities and economic decisions to deepen the concentration of economic activities in certain farming sectors was developed. Research was carried out on the basis of these considerations and decision-examination. Upon completion of the expert evaluation, the results of the study are supplemented by the evaluation of statistical data. The specialisation in crop production is strengthening in Lithuania and at the same time displacing the development of animal husbandry. The main motives of that are: the pursuit of profit and stable income, the availability of consulting services, per area payments, access to EU support (in general) and coupled area support. Social motives for deepening the economic activity through specialization more reflect the general motives of farming and living in rural areas as a lifestyle or tradition. The results will serve in making policy and business decisions and other research.

[Read full article] [Citation]

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 4
Written by Eva L. BAIDENG, Regina R. BUTARBUTAR, Hanry J. LENGKONG, Rooije R.H. RUMENDE, Lady C.CH.E. LENGKEY, Hendronoto A.W. LENGKEY

Pangium sp. has the potential to be developed as a biopesticide because it has the ability to inhibit the activity of several types of insect pests. In this study, pangium leaf extract and pesticide were applied to Brassica oleraceae cabbage farms; to determine the type and population of pests and their natural enemies. Each carried out on an area of 500m2, with 1,250 cabbage plants. Observation and sampling of insects and natural enemies at the larval stage, were carried out seven times every seven days starting on 14 DAP (days after planting); diagonally, where there are five sampling spots, by sweeping using insect nets five times; then collected and identified. Results indicated on the treatment area of pangium leaf extract found seven types of pests: Plutella xylostella, Crocidolomia pavonana, Aphis sp., Liriomyza brassicae, Spodoptera sp., Chrysodeixis calcites, Grylotalpa sp., and Parmarion sp.; dominated by P. xylostella and C. pavonana. The natural enemies found were six types of predators: Coenagrionidae, Asilidae, Mantidae, Sphecidae, Libellula sp., Menoxhilus sexmaculata and one parasitoid Diadegma semiclausum. In the pesticide treatment, four types of pests: P. xylostella, C. pavonana, Aphis sp; L. brassicae; and four types of natural enemies/predators: Coenagrionidae, Asilidae, Mantidae, Sphecidae and one parasitoid D. semiclausum. The average population in the pangium leaf extract treatment area, pests 8.91 individuals, natural enemies/predators 2.35 individuals and parasitoids 6.13 individuals. In the pesticide treatment area: pests 3.05 individuals, natural enemies/predators 1.2 individuals and parasitoids 0.51 individuals.

[Read full article] [Citation]

Page 4 of 8

The publisher is not responsible for the opinions published in the Volume. They represent the authors’ point of view.

© 2019 To be cited: Scientific Papers. Series “Management, Economic Engineering in Agriculture and Rural Development“.

Powered by INTELIDEV

Management Journal