Jutka Deak

ECONOMIC EFFICIENCY OF LETTUCE CROP IRRIGATED THROUGH DIFFERENT METHODS

The research purpose of this paper, was to determine the economic efficiency of irrigation on lettuce cultivated in a protected area, while aiming to attain early crops of high quality, at low specific costs. From an economical point of view researches showed that micro-sprinklers irrigation is recommended. Though the yields are lower using this method, they are enough to determine a higher gain.

Construction of a Geodetic-topographic Base Inside University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca

In order to assure optimal conditions for laboratory activities carry on in field to disciplines Surveying, Geodesy, Surveying Engineering, Satellite geodesy, etc., it was realized a geodetic-topographic base inside UASVM Cluj. This was done following topographic works: positioning a point (GPS UASVM) by global positioning measurements;was determined the height of GPS UASVM height mark by height precision levelling based on a II order precise reference mark from city level control, there were materialized points of traversing paths there were determinated the heights of these points by level traversings. On the base of this geodetic-topographic base may be carried out various works in the laboratory from syllabus of courses above mentioned. The created base will allow students acquire practical skills to use surveying instruments and techniques work. For positioning the point GPS UASVM Leica receivers were used, using the static method for determining the geocentric coordinates X, Y, Z, geographical coordinates B, L HE on the WGS 84 ellipsoid and then coordinates were transformated in Stereogafic 1970 coordinates using Geo Office Combine program.