http://ktisis.cut.ac.cy/handle/10488/33 Search the Channel search http://ktisis.cut.ac.cy/simple-search http://ktisis.cut.ac.cy/handle/10488/1593 Title: Reducing Atmospheric Emissions from Land Application of Manure<br/><br/>Authors: Kathijotes, Nicholas; Marinova, Svetla<br/><br/>Abstract: In view of the extreme climatic changes that are occurring, all gas inputs into the atmosphere should be investigated, especially carbon dioxide, nitrogen and ammonia. When raising animals, and nearby these farms, large amounts of animal liquid wastes are accumulated. These are used for irrigating and fertilizing nearby fields. During surface application, and in the process of bacterial hydrolysis, considerable quantities of nitrogen, after passing through ammonification, and are liberated into the atmosphere as atmospheric nitrogen. The aim of this paper is to evaluate the quantities of nitrogen loss during application of these liquid wastes, as well as the principle parameters which influence these losses. Model plant under natural conditions was used where using an aspirator unit, the quantity of gaseous nitrogen loss was determined. Series of factors were investigated, as state of soil surface, amount of fertilizer, extent of fertilizer dilution with water, air temperature, soil type, etc. These results show that the largest amount of ammonia nitrogen is evolved in the atmosphere, at surface sprinkling of liquid manure on meadows, pasture-grounds and lawn and at a less degree on fallow land. Some recommendations were made for decreasing atmospheric nitrogen losses up to 25% if immediately after sprinkling the fertilizer or manure plow down or cultivation in 8-10-cm depth is carried out. The nitrogen losses are practically insignificant at larger depth. Thu, 29 Oct 2009 22:58:59 GMT http://ktisis.cut.ac.cy/handle/10488/1311 Title: Testing of Sewage Sludge Produced in a Model Installation for Water Purification for Antibiotics-Fertilization Products<br/><br/>Authors: Marinova, Svetla; Zlatareva, E.; Kathijotes, Nicholas<br/><br/>Abstract: Research is carried to establish the effectiveness of the sewage sludge from antibiotic production as an organic fertilizer. Sludge was assessed high to total nitrogen and phosphorus, but with low values of potassium. Data received in a precise short term pot experiment on a grey forest soil showed that different plant species react to the treating with this agent in a different way.The stabilized primary sludge from the I and II bio basins is suitable for cereals under our chemical conditions and agricultural treatment. Increasing the sludge rate proportionally increases the yield of rye-grass and oat. The highest yields are achieved at rates of 40% of the soil weight. In the case of maize the results do not seem satisfactory. Mon, 29 Oct 2007 22:58:59 GMT http://ktisis.cut.ac.cy/handle/10488/1310 Title: Chemical Changes in Alluvial Lawn Soils, Fertilized by Sediments from Wastewater Treatment Stations<br/><br/>Authors: Marinova, Svetla; Tsolova, V.; Kathijotes, Nicholas<br/><br/>Abstract: Large amounts of sludge which are produced from biological treatment of wastewater are expected to be placed at a variety of appropriate locations of disposal. Research shows that sludge containing biomass, rich in macro and microelements, may substitute our organic matter reserves, considering the shortages of these reserves in our country. Research has also shown the effect and possibility of the use of this resource on soils (Marinova 2002, Kasatikov 1984). The important question to be resolved is their ecological effects on soils when applied as fertilizers or soil conditioners. The aim of this research paper is to evaluate the chemical changes in alluvial field soils, as applied after intensive and continuous application to such soils. Fri, 29 Oct 2004 22:58:59 GMT http://ktisis.cut.ac.cy/handle/10488/1309 Title: Wastewater Reuse for Irrigation: Evaluation of Salinisation Risk<br/><br/>Authors: Kathijotes, Nicholas; Marinova, Svetla<br/><br/>Abstract: Under the drought conditions occurring around the Mediterranean region, the use of treated effluents resulting from treatment of domestic effluents may be an important resource. Using however non-conventional quality water presents a number of ecological and health risks and poses problems connected with soil and ground water contamination. This paper concentrates in evaluating the possible salinisation risks encountered on the soil profile as a result of using the above effluent and suggests possible corrective management techniques. Tue, 29 Oct 2002 22:58:59 GMT