ISSN 2284-7995, ISSN Online 2285-3952
 

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Maria-Mihaela ANTOFIE, Camelia SAND SAVA

Home-gardens survived in many villages in Romania especially in the historical province of Transylvania and the rich diversity of species an heir varieties recorded for vineyards, fruit trees and shrubs may further contribute to define the concept of traditional home-gardens. Mor han other cultivated species, vineyards and fruit trees that are positioned inside, or outside urban areas, are connecting these agro-ecosystems to the wild ecosystems in a very specific landscape, making possible the preservation of an impressive number of wild specie iversity for the region. The scope of this article is to record and discuss the diversity of domesticated species and their varieties relat o three groups of plant species such as following: vineyards, fruit trees and shrubs in Moșna commune, Sibiu county, Romania. Our results revealed that even the vineyards decreased 23 times compared to 1750, local community continued to cultivate the first hybrids that have bee ntroduced after the first attack of Phylloxera during the 19th century. Fruit tree species were also recorded in fossils excavated from hum ettlements in South Eastern Transylvania, the fruit diet being almost unchanged for so many centuries. This is the case also for bushes species that are towering all traditional home-gardens inside urban areas. However, the population expressed an obvious openness for testing nd integrating new varieties, new species as well to preserve all old inherited plant genetic resources for centuries supporting us to further define a new type of gastronomic footprint in the support of food security for the future.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Mary Cris F. PLEÑOS, Moises Neil V. SERIÑO, Fe M. GABUNADA, Nilda T. AMESTOSO

The study aimed to examine the catch productivity of selected fishers in Leyte, both from fishing grounds nearby Marine Protected Areas (MPAs) and those far from MPAs. Descriptive analysis, nonparametric statistics, and regression analysis were the analytical tools used. Using data from 266 respondents, results showed that the average time spent per fishing day was 6.43 hours while the total travel time from the shoreline to fishing area per fishing trip was 1.41 hours. The average daily fish catch was 2.86 kg with a daily gross economic yield of PHP 476 (USD 9.46). Non-MPA fishers statistically took longer fishing days than MPA fishers. Controlling for several socio-economic variables and fishing characteristics, results of multiple regression analysis showed that fishing grounds near MPA sites have higher catch than fishing sites far from MPAs. Three regression models displayed a consistent positive influence of MPAs on fish catch rates. This outcome supports the fish spill over effect which influence high fish yield in adjacent fishing grounds to MPA sites. The results suggest for the establishment of more properly managed MPA sites to maintain healthy fish stocks and also increase catch among fishers.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Mykola POVOD, Oksana KRAVCHENKO, Andriy GETYA, Valeriy ZHMAILOV, Olekasndr MYKHALKO, Olga KORZH, Tatiana KODAK

The optimal pre-slaughter live weight of pigs for fattening in the conditions of an industrial pig complex in Ukraine was determined and its influence on the quality of pig carcasses was investigated. For the study, 80 heads of young pigs were selected, of which 32 were pigs and 48 were boars. Boars were surgically castrated at the age of 2 days. During fattening, all animals had free access to food and water. Pigs were fattened in group pens for 20-25 heads on a completely slotted floor. Feeding was carried out with complete feed of own production in the wet type. When the animals reached the age of 170 days, depending on live weight, they were divided into 3 groups: Group I - 85-95 kg; Group II - 100-110 kg, Group III - 115-120 kg and slaughtered at the meat plant. The results of slaughter were used to determine the main slaughter characteristics of pigs in accordance with generally accepted methods. After measurement, the carcasses were cut into pieces and evaluated for the yield of lean pork by deboning. As a result of the study, it was found that with the increase of ante-mortem live weight, the carcass yield of carcasses also increased. In all weight groups, pigs outnumbered boars in slaughter yield. At the same time, pig carcasses lost more weight during cooling compared to castrates (0.2-0.4%). The carcasses of castrated animals had a thicker fat, measured at different points on the carcass (0.1 to 3.6 mm above the first thoracic vertebra and 0.8 to 3.3 mm above 6-7 thoracic vertebrae). Further analysis of the carcasses showed that the ratio of valuable parts of carcasses does not change significantly with increasing pre-slaughter live weight of animals. The mass fraction of tenderloin, neck, shoulder, loin and ham was higher in pig carcasses, while in castrates only the proportion of brisket was higher. In general, the weight of meat from the four main cuts in pigs was significantly higher than in castrates (group I - 58.4 against 52.2%; group II - 56.6 against 55.5%; group III - 58.3 against 56.6%). Analysis of the morphological composition of the carcasses showed an increase in meat content with increasing pre-slaughter live weight. In particular, in animals with a live weight of 115-120 kg, the proportion of meat in the carcass was 68.6 ± 0.34 in castrates and 71.0 ± 0.59% in pigs.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Ancuţa BĂRBIERU

Lavinia F is a winter pea (Pisum Sativum L.) cultivar created at National Agricultural Research and Development Institute Fundulea (NARDI), egistered in 2020 and obtained through sexual hybridization and selected by pedigree method from Dorica/Checo hybrid population. The new ntry is of aphyla type, with an early vegetation period, of 213-216 days. Is was released based on superior agronomic adaptation, winter ardiness and tolerance to harsh winter condition. The plant height ranges between 70 and 90 cm, with a good resistance to lodging, better esistance to diseases, drought and pests. The flower color is white, with spherical, smooth grains and yellow pericarp. It is a high yield ariety with an improved level of quality. A good yield potential was estimated in newly developed Lavinia F cultivar 4210 kg/ha in 2018 and 017 kg/ha in 2019, in Ludus. The Thousand Grains Weight (TGW) of the winter pea cultivar analysed during 2018-2019 varied between 204 g ( ogealac) and 235 g (Luduș) in 2018, and in 2019 between 166 g (Negresti) and 229 g (Inand). The objective of the present study was to escribe a new culture in Romania, which is sowed in autumn, namely Lavinia F the new cultivar of winter pea. The results presented in this paper show that the first cultivar of winter pea is adapted to climate conditions in Romania and will be a new hallenge for farmers.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Daniela SIMTION

Claims related to investments may be a source of tax evasion by granting a loan to a daughter company (in which the parent company holds a majority interest rate) with a higher or lower interest * depending on the need to transfer value between companies, by the limit of expenses allowed by the tax law, as well as other interests, such as the need to cover the interest expenses from the financial and other incomes of the debtor company. Starting from the above, a very large number of value transfer strategies can be conceived between companies belonging to the same holding (a company that holds the majority interest in several companies). This paper refers to the classic case of tax evasion through loans between companies of the same holding company, including those in the agricultural field.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Filiz BASAGAOGLU

In this research, smoothing methods and the Ordinary Least Squares (OLS) method for predicting producer milk prices in Turkey is implemented. Holt-Winters multiplicative (HWM) method and Holt-Winters additive (HWA) method are included in the exponential smoothing methods. Producer milk prices data belong to January 1st, 2010 to December 31st, 2019 period and gathered from the Turkish Statistical Institute. According to the given results, OLS method is fitted the data and has good root mean square error (RMSE) and determination coefficients (R2).

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Florin SALA

The production variation in relation to fertilizers with N and PK was analyzed. The study was conducted on rapeseed. Four levels of fertilization with PK (0, 80, 100 and 120 kg a.s. ha-1) and three levels of fertilization with N were performed (0, 70, 140 kg a.s. ha-1). The combination of doses resulted in 12 experimental variants, which ensured the differentiated nutrition of the plants. Production ranged from 986.88 kg ha-1 (V1), and 3,167.33 kg ha-1 (V9). The variation of production was described by a function of type Y = f (N, PK), in conditions of statistical certainty (R2=0.976, p<0.001). From the analysis of the values of the production increase given by N and PK, it was found that, with the increase of N doses, in the studied interval, the contribution of PK to the production increase was more and higher. Regarding PCA, PC1 explained 99.244% of variance, and PC2 explained 0.65613% of variance. The PCA diagram highlighted the distribution of the considered variants, in relation to the attributes of the experiment, N, PK and Y. The cluster analysis facilitated the grouping of variants based on Euclidean distances, in conditions of statistical safety, Coph. corr. = 0.762. Based on similarity and distance indices (SDI) the highest degree of similarity was identified between variants V2 and V12 (SDI = 11.49), followed by variants V8 and V11 (SDI = 31.71), and variants V6 and V7, respectively (SDI = 100.6).

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Maria BĂLA, Florin SALA

The present study evaluated the behaviour of three ornamental species through flowers, in off-season cultivation conditions, in order to ptimize production parameters. The total time of flowering (Ttf) was described, for each species, by mathematical models, in relation to the emperature and plants height. The biological material was represented by the species: Lathyrus odoratus L.; Antirrhinum majus L., and atthiola incana (L.) W.T. Aiton., respectively. The variation of the plant height, in the studied ornamental species, in relation to the emperature (T), was described by polynomial equations of degree 3, in safety statistical conditions (R2=0.975 for Lathyrus; R2=0.987 for ntirrhinum, and R2=0.971 for Matthiola, respectively). In relation to the biological specificity and the behavior in the off-season, the hree species had different values for the total time of flowering (Ttf); Ttf = 19 days for Lathyrus; Ttf=166 days for Antirrhinum, and tf=210 days for Matthiola. Multiple regression analysis led to the obtaining of Ttf estimation models, depending on the temperature (T, °C) nd the height of the plants (H, cm), in statistical safety conditions. The Wolfram Alpha software facilitated the obtaining of 3D and soquant graphic distribution models of Ttf, according to T (°C) and H (cm), for each species studied. The optimal values for H and T were etermined, in order to obtain the best total flowering time, in off-season conditions, values that can be ensured by the cultivation echnology of the studied species.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Alina MARCUTA, Liviu MARCUTA, Agatha POPESCU, Cristina TINDECHE, Valentina TUDOR, Dragos SMEDESCU

Slow tourism, slow adventure are new ways to travel, are new ways of life that are addressed to a new generation of tourists, much more concerned with ecology, environmental protection, and who wants to have a relaxing break after life tumultuous it has, which needs both adrenaline, but also immersion in a natural, open space, which will allow them to disconnect from technology. Drawing from these concepts, appeared and developed by specialists from the Nordic countries, as well as from the examples of their good practices, through this paper we set out to analyze the evolution of tourism worldwide during the period 2009-2018, with the purpose of to identify the ways of adapting Romania to these new temptations. The research method consisted of two stages, one of bibliographic study and another of analysis and interpretation of statistical data, on the basis of which conclusions could be formulated and proposals made for the development of slow tourism.

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Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 20 ISSUE 4
Written by Yuri PREOBRAZHENSKIY, Anna FIRSOVA

The paper studied the issues of the balanced spatial development of agro innovation systems of Russian regions using the main indicators of agricultural innovation for 2015-2019: innovative products in crop and livestock production, agricultural machinery, as well as graduates of agricultural universities and employed in the agricultural sector. The degree of concentration of these indicators was determined using the Herfindahl-Hirschman index for the regions of Russia. The results reveal a high of concentration of costs of technological innovations in the agro production, when from 50% to 90% of the costs of the technological innovation in the crop and livestock sectors are concentrated in only 2-3 Russian regions, as well as the absence of dependence on the production of innovative agricultural products on the degree of concentration of indicators and a balanced ratio in the labor market of agricultural specialists in the regions of Russia. To ensure progressive structural changes and enhance innovative activity in regional AIS and increase the efficiency of agriculture, measures are proposed to enhance the balance of AIS components and spillover effects of innovations, resulting in an increase in the efficiency of agro innovation systems functioning.

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

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