Annals of the University of Craiova - Agriculture, Montanology, Cadastre Series
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EXPERIMENTAL RESULTS ON NITROGEN FERTILIZER FORMS AND DOSAGE APPLICATIONS FOR PRODUCTIVITIES
Get PDFIn the complex of measures regarding the establishment, maintenance and use of temporary (sown) meadows, fertilization is a first factor in achieving large, constant and long-lasting productions. Each form of fertilizer in our experience was researched in increasing doses: NO, N60, N120, N180 with fractional application for each crop. Harvesting was carried out in hay and the production was expressed in tons of dry matter per hectare. Considering the production obtained with ammonium nitrate as a reference level, it is found that among the other forms of nitrogen fertilizer, nitrocalcare proved to be the most effective, with increases of 4-6%, urea behaved similarly to ammonium nitrate and ammonium sulfate, determined the smallest increases (3- 3.5%) of production
RESULTS REGARDING THE FERTILIZATION OF THE SUNFLOWER CROP WITH AN EFFLUENT OBTAINED BY WASTEWATER TREATMENT
Get PDFThe research was carried out in 2020 on the sunflower crop grown in sandy soils in southern Oltenia and aimed at the influence of fertigation with an effluent obtained by wastewater treatment, compared to conventional fertilization and irrigation with normal water from surface water sources. The obtained results showed the positive influence, on the nutritional status of the plant, of ensuring the dose of nitrogen in the vegetation by fertigation with purified water, applied fractionally in 2-3 steps (Nt-3.5%; Pt = 0.35% Kt = 2.7%), compared to classical fertilization and irrigation with normal water from surface water sources. It was noted with the best results on production (4427.5 kg / ha) and the weight of one thousand grains (69 g), the variant in which the dose of 70 kg N / ha, required in vegetation, was ensured by irrigation with treated water, Â applied fractionally in two doses of 50%, starting with the phase of 5-7 leaves.Â
CLIMATE TRENDS IN OLTENIA. CASE STUDY: DRĂGĂŞANI
Get PDFThis study is the first one in a series of papers that analyzes the climate trend in Oltenia, a historical region of Romania, located in the south-west of the country. The region is important due to its agricultural potential, with many vineyards known at national and international level. In this context, the paper aims to characterize the climate in the area of Drăgăşani vineyard. This approach is necessary because the climatic factors are extremely variable and have a dynamic, noticed also by many researches, which leads to climate change, with implications for all socio-economic activities. This study was based on meteorological records made over a period of 52 years in order to highlight these changes in Oltenia. A series of statistical indices of the data were calculated to indicate the climate trend in this region and the implications it may have on viticulture
RESULTS REGARDING ON THE DYNAMICS OF THE ATTACK OF THE PATHOGEN PLASMOPARA VITICOLA IN THE CLIMATIC CONDITIONS OF THE YEAR 2021, IN THE SEGARCEA WINE FARM - ARCHDIOCESE CRAIOVA, DOLJ COUNTY
Get PDFThe Archdiocese of Craiova cultivated 40 ha with vines within in the locality of Segarcea, the main varieties being both varieties for Merlot, Cabernet Sauvignon, Sauvignon Blanc, Romanian Tămâioasă and Chardonnay.The phytopathogenic agent of the wine Plasmopara viticola, was monitored in terms of the evolution of the attack on the crop, in correlation with the climatic conditions and the way of reaction of the varieties to the attack of the phytopathogen was observed. The National Phytosanitary Authority, through the Dolj Phytosanitary Office, in the climatic conditions of year 2021, issued warning bulletins based on the basic criteria: biological, phenological, and ecological of the vine.Â
OPPORTUNITIES AND CHALLENGES TO SUSTAINABILITY IN HIDROPONIC SYSTEMS– REVIEW
Get PDFHydroponics is a viable solution to obtain intensive agriculture, in terms of producing vegetables and fruits as tasty and nutritious as those produced in classical crops. In the current changing climatic conditions, it can be a viable solution for obtaining high quality food. In addition, the system allows establishment of crops, which do not require the use of soil or manure, but only water that contains various dissolved nutrients. This agricultural cropping technology involves the use of various fertilizers instead of soil for the growth and development of plants. The light needed to develop the plates can come from the sun, or can be produced by renewable energy sources
REALIZATION OF THE GENERAL CADASTRE IN CHINTENI COMMUNE, CLUJ COUNTY
Get PDFThe paper aims to analyze the necessary works, which were carried out in order to carry out the general cadastre, at the level of Chinteni commune, Cluj County. The general (systematic) cadastre is made by measuring all real estate (land with or without construction) within a territorial administrative unit or a cadastral sector, identifying all owners and other holders of real or personal rights over real estate, simultaneously with the opening of books land for all buildings, operations carried out in a single procedure for the entire cadastral sector or for the entire territorial administrative unit. The implementation of the National Cadastre and Land Registry Plan (PNCCF) brings a series of concrete benefits, starting with the free registration of all real estate in Romania in the integrated cadastre and land registry system, including real estate owned without documents, in favor of de facto owners
STUDIES AND EXPERIMENTAL MEASUREMENTS FOR AUTOMATED CONTROL OF CONVEYOR BELTS
Get PDFThe transport of raw from bunkers to the work installations is a very important activity from the technological flow that takes place in a compound feed factory. So it is indicated to exist an automated control of the conveyor belts, to ensure the proper functioning of the work equipment. The experimental measurements were made using an own conception electronic assembly. Thus it was possible to analyze the operating parameters of rotation and proximity magnetic sensors, which can be used to implement devices that allow automated control of conveyor belts. Studies of measurements shown in this article offer the possibility of implementing automated control devices based on magnetic sensors, which allow the transmission of stop signals of motors that drive the conveyor belts at detection of disturbances in their normal operation, to maximize losses of materials
ANALYSIS OF RURAL HUMAN RESOURCES IN THE SOUTHWEST OLTENIA REGION
Get PDFThe rural environment has always been a challenge for the implementation of projects with European non-reimbursable funding, both in terms of human resources and in terms of the implementation of these projects. The number and structure of human resources in rural areas differs from those in urban areas, which should be analyzed with an emphasis on the level of training and training opportunities according to this level and the need of the market. At the level of the SV Oltenia development region, disparities can be found both in the volume and in the structure of human resources depending on the degree of industrialization of each county and the extent to which the relief allows the practice of agriculture. The low level of education of the rural population of the region leads to negative effects both for the population in the area and for the development of the area. The present study presents the main features of rural human resources in the South West Oltenia region, as well as an analysis of the main indicators on labor force
COMPOUND NATURAL SOURCE OF NUTRIENTS AND HUMUS FOR PLANTS AND SOIL
Get PDFComposting is the biological decomposition of biodegradable solid waste under controlled conditions in a state that is sufficiently stable to allow trouble-free storage and handling and that is satisfactorily matured for safe use in agriculture. When mineral fertilizers are not available or are too expensive, compost is the most important source to provide plant nutrients and adjust soil condition. Many people today appreciate compost as a natural source of nutrients and humus. The paper will present the partial results obtained in a research project in which a biohumus loosening plant was based and built. The use of the biohumus loosening plant aims to adjust the natural decomposition process, ensure good conditions for the composting process, especially air (oxygen), water, and a good composition of the material introduced into the piles, and monitor them for get a quality product.Â
FOLIAR AND STEM CHEMICAL CONTROL OF THE INVASIVE SPECIES AILANTHUS ALTISSIMA FROM PASTURES
Get PDFThe present paper presents the results of the chemical foliar control research of the species Ailanthus altissima. In the shrubs sprayed on the foliar apparatus, the effect was 100%, only where the solution reached the leaves, and in the tops of the trees where the solution did not spread, the leaves were not affected, having a normal vegetation. It should be noted that this method applied by spraying the foliar apparatus did not affect other shrubs in the vicinity, only the treated herbicide had an effect on those treated. In conclusion, the herbicide had its effect only where it came in contact with the leaves, the rest of the leaves not being affected. In those injected with a herbicide dose of 4 ml / cm in the diameter of the tree (15 cm in diameter corresponds to a dose of 60 ml pure herbicide) at a distance of 30 cm above the ground, the herbicide made its effect 100%, these shrubs drying completely. They were also affected, in addition to those injected a no. of 10 and 12 trees, respectively, on a perimeter of 10 m2, but not entirely, the foliar apparatus being affected 70-80% of the foliage and at the same time new shoots of approx. 30-40 cm long, and the tendency of herbicidal trees to regenerate after approx. 35 days