CONSIDERATIONS REGARDING FISH FARMING IN POLYCULTURE SYSTEM

Marine aquaculture is becoming more widely recognized as a viable alternative to fishing for supplying high-quality protein to the world's rising population. Capture fisheries output is falling short of global demand, and yearly seafood consumption has increased by more than double in the previous three decades. Under these conditions, raising fish in a polyculture system could be a viable option for increasing production globally, but with low effects on the environment

THE STUDY ON THE FEASIBILITY OF USING IN THE FOOD CHAIN SOME BATCHES OF WHEAT AND CORN CONDITIONED AND KEPT AT CEREAL SILOS IN OLTENIA

In Romania, cereals, and especially wheat and corn, are traditional crops with a high nutritional value of seeds, which are the primary source of food for humans and animals and because they enjoy, in most areas, the conditions. favorable soil and climate. The use of seeds contaminated with fungi or microorganisms during vegetation, during harvesting, during the conservation period, every year brings considerable losses that affect both the yield and the quality of the harvested and stored production. In the presented paper we tested some batches of wheat and corn in order to determinate the presence and levels of mycotoxins as: Aflatoxin B1(AFB) and total aflatoxin (AFT), Ochratoxin A (OTA), Fumonisin B1 (FUMO), T-2/HT-2, Zearalenon (ZEA), Deoxinivalenol (DON) and heavy metal residues (Pb and Cd)

The corruption - an economic and social analysis

The current edition in English language turns into account and completes the studies published in the previous edition. Carrying on the research and publication activities on the topic of corruption is based on its novelty and on the special interest for the Romanian language edition. At the same time, we hope that the current volume will provide greater opportunities for foreign access and thus the admittance in the European and international flows of information in this field. The core ideas of the book focus on social perception, modelled through statistic analyses, on the specificity of corruption in the public administration or the public health system in close correlation to the processes of decentralization and performance of health services. The analysis of the corruption topic is in interference with the effects of the European integration processes, globalization, being correlated to adjacent developments concerning the public integrity, national or regional economic freedom and development. This book represents the result of the scientific collaboration between teams of teaching staff and students from the National School of Political Studies and Public Administration and Academy of Economic Studies, Bucharest. The book is structured on nine chapters, organised according to a didactic logic, in view to provide the reader a profound overview of the mechanisms and methodology of research as well as the conclusions and the economic and social impact of corruption. Data processing in view to estimate the correlations and parameters of regression has been achieved through SPSS and Eviews statistic programs

THREE MAIN PATHOGENS THAT AFFECT APPLES DURING STORAGE AND THEIR INFLUENCE ON FRUITS QUALITY

The postharvest pathogens that infect apples during storage period affect fruits quality and lead to important economic losses worldwide every year. Three appreciated apple varieties (Golden Delicious, Jonathan, Starkimson) have been evaluated for the incidence of main storage pathogens that operate in fruits (Penicillium expansum, Botrytis cinerea and Monilinia fructigena) and their impact on fruits quality. The results emphasized negative correlation between water content and dry matter for all apple varieties affected by storage pathogens. Despite the fact that were not significant differences between apple varieties, Golden Delicious has been recorded the lowest water content (74,62% for fruits affected by Penicillium expansum, 77,87% for fruits affected by Botrytis cinerea and 74,68% for fruits affected by Monilinia fructigena) and highest dry matter (24,63% for fruits affected by Penicillium expansum, 25,38% for fruits affected by Botrytis cinerea and 21,86% for fruits affected by Monilinia fructigena). Potassium and Phosphorus content decreased, while Iron content increased for all apple varieties affected by pathogens. The sugar content decreased with almost 20% for apple fruits, the lowest values for all varieties have been recorded in case of Botrytis cinerea and Monilinia fructigena attack. The highest raw protein values have been determined to all apple varieties affected by Monilinia fructigena (Golden Delicious 0,69g, Jonathan 0,89g and Starkimson 0,52g). The study revealed that apple quality during storage depends on the variety susceptibility, postharvest fruit health, fruit mineral composition, fungal inoculum and storage conditions

AUTOMATED DRIP IRRIGATION SYSTEM POWERED BY PHOTOVOLTAIC PANELS USED FOR AGRICULTURAL CROPS

Climate change, water scarcity and higher energy requirements and electric tariff compromises the continuity of the irrigated agriculture. Precision agriculture (PA) or renewable energy sources which are based on communication and information technologies and a large amount of data are key to ensuring this economic activity and guaranteeing food security at the global level. Several works which are based on the use of PA and renewable energy sources have been developed in order to optimize different variables of irrigated agriculture such as irrigation scheduling. In general, 70% of global water consumption goes to agriculture, for crop irrigation. Irrigated agriculture represents 20% of the total cultivated land (global average), but brings 40% of food

STUDY ON THE IDENTIFICATION OF HERBICIDES WITH HIGH SELECTIVITY TO ENSURE CULTURAL HYGIENE IN GRAIN SORGHUM CROPS

The integrated management of weeds uses a combination of biological, cultural, mechanical and chemical measures to combat the weeds in order to maximize the economic profits. Integrated management strategies for cultural hygiene are not sufficiently developed for selective herbicides in order to combat weeds for Sorghum bicolor (L.). The efficacy of the applied herbicides was tested using the Abbott’s formula, and the most effective in controlling weeds in the grain sorghum culture for the Caracal Plain area was found to be the Trek P 334 SE herbicide, with a value of 97.21%, followed by Gardoprim Plus with a calculated coefficient of 95.33% and the herbicide Wing P whose value was 94.15%. The lowest coefficient was recorded for the Casper herbicide, 73.28%. The level of productions made this year in the herbicide experiment using the Alizee hybrid range between 3092 kg/ha at the Control variant and 8150 kg/ha when the Trek P 334 SE herbicide was applied. The increases recorded in all variants with herbicides, regardless of the active substance contained, have achieved very significant increases in production in comparison with the Control variant

RESEARCH REGARDING LABORATORY TESTING OF SOIL PROCESSING EQUIPMENT USING THE EFFECT OF ELECTRO-OSMOSIS

Electro-osmosis principle consists of the application of a direct current voltage for an anode-cathode system introduced into soil. The soil water transported from the anode to cathode, on the tool-soil contact surface will produce a lubrification of an active surface and through this a great decreasing of the friction forces and implicit of the energy needed for displacing the tool through the soil. The active surface of the tilling tool is chosen in order to minimize the frictions, respective the mechanic energies needed for tilling. This paper aims to increase the popularization of the electro-osmosis technique, highlighting the advantages of using such a method for soil improvements, as well as in view of optimizing the functional parameters of the soil tillage equipment

GENERAL CONSIDERATIONS CONCERNING THE EFFECTS OF ELECTRO-OSMOSIS ON DECREASING THE FORCES AND THE ENERGY NEEDED FOR TILLING THE SOIL

Electro-osmosis principle consists in the application of a direct current voltage for an anode-cathode system introduced into soil. The effect of this system consists of the mobilization of water particles from the soil and their transport, in a very short time, from the anode to cathode. The soil water transported from the anode to cathode, on the tool-soil contact surface, in consequence, will produce a lubrication of the active surface and thereby a considerable reduction of the friction forces and implicitly of the energy necessary to move the tool through the soil

COMPARATIVE STUDY OF VIBRATIONS IN APPARATUS COMBINATIONS TANGENTIAL THRESHING

          Vibrations are dynamics phenomenon which appear in some environment as a result of an external force whose action consist on an oscillation. The effect of these oscillations harm to the environment where they appear and if this environment is the human body then the results are more harmful, hauling consequences, sometimes irreversible, on the health of the human body. In this respect, studying and knowing the effects of the vibrations on human body have become a necessity, the research taking place in order to find out the limit to which the men could work in an environment with vibrations such as the agricultural machinery (self-propelled combines for cereals crop in a way) without no effects on the health of human being

AGRICULTURE 4.0 - THE USE OF SMART TECHNOLOGIES FOR HIGHPERFORMANCE AGRICULTURE

Given that the labor market in Romania has an acute shortage of labor (about 1 million people), in agriculture this lack is felt even more acutely because the population in the villages is declining and aging, thus it is increasingly difficult for Romanian farmers to find labor, let alone skilled labor. One solution can be the digitization of agriculture, ie the introduction of the latest management concepts, sensors, automation, robots, etc. in the modernization of work processes in agriculture, thus reducing the need for labor, while increasing productivity and efficiency in agriculture