Search
Search Results
-
Horticulture applicability of 3D laser scanner
75-78Views:529As a result of the technological development, remote sensing instruments and methods have become widespread in all segments of life (from precision agriculture through architecture to medicine). Among the innovative development of remote sensing instruments the 3D laser scanner is overriding importance. The horticulture applicability of terrestrial laser scanning technique is innovation in the precision agriculture, because it could be determine the structure of trees and branches, the canopy extension, which can help to recognize some biophysical parameters. The examination was carried out with Leica ScanStation C10 terrestrial laser scanner in the Study and Regional Research Farm of the University of Debrecen near Pallag. In this article I present the measuring principle, the parameters and horticulture applicability of the terrestrial laser scanner.
-
Yield table for selected black locust (Robinia pseudoacacia L.) cultivars
193-198Views:608In Hungary, the black locust (Robinia pseudoacacia L.) can be considered as the most important fast-growing, stand-forming introduced tree species. Due to its positive growing technological characteristics as well as wood utilization possibilities, at the present, black locust is the most widely planted tree species in Hungary, covering 25% of the country’s total forest area. One of the important tasks ahead of Hungarian black locust growers is to improve the quality of black locust stands with introducing selected cultivars. For the estimation of the growth rate and yield a numerical yield table has been constructed on the basis of surveys of the experimental plots established in pure,managed ’Nyirségi’ ,’Üllői’ and ’Jászkiséri’ black locust cultivars’ plantations which can be suitable for sawlogs production. In the course of 56 stand surveys the key stand characteristics were measured, and then, were reconsidered the average height, diameter (DBH), volume, basal area and stem number given separately for the main (remaining), secondary (removal) and total stands per hectare. The programmable editing procedure allows to extention and formal change of information content of the yield table according to different demands.
-
How can we determine the expected prices for lambs? – Analysis of the Hungarian and Italian lamb prices
59-67Views:181The Hungarian sheep sector has become a one-market sector, almost the whole amount of slaughter lamb went to Italy, which increased its defenselessness. In addition to the sole Italian market showing a permanent demand for Hungarian lambs, it would worth to exploit possibilities in other European markets considering the seasonal differences in Italian prices. Such markets can be the Spanish and Greek for ”light” and the French, German and English markets for ”heavy” lambs. Both the Italian and Hungarian prices have three major periods: Easter, Ferragusto and Christmas. Due to the changes in the prices, the producers often suffer great losses, therefore, the temporal adaptation of production, market research, technological and development activities need to be improved. It is important that the living of Hungarian sheep breeders should not be dependent solely upon the Italian market, distribution of products should be ensured in other markets too, so that the safety of sales be increased and higher prices and higher income could be achieved. The European lamb prices are characterized by large seasonal fluctuation and the degree and timing of changes are different in the different countries. Study of the literature and the results obtained in my study on lamb sales called for an analysis and study of the possibilities of price forecasting. In my study, I performed a forecasting of lamb prices in Hungary and Italy for the period between 1996 and 2006 based on the data of the European Committee. Among the forecasting methods, seasonal decomposition and SARIMA models are the most precise, producers can achieve a better market position by using these in the practice.
-
Technological development of sustainable maize production and its effect on yield stability
379-388Views:436In 2015 and 2016, we examined the effect of NPK nutrients, sowing date and plant density on yield on typical meadow soil. The amount of precipitation was 282.0 mm in 2015 (January–September), 706.0 mm in 2016 and the 30-year averageis 445.8 mm.Agrotechnical factors:– Experiment a)5 Dow AgroSciences hybrid with three sowing dates and three plant densities– Experiment b)In 2015 eight, in 2016 ten hybrids with different genetic characteristics and growing seasons, with control (without fertilization), N80+PK and N160+PKtreatments, five plant densities (50–90 thousand) with 10 thousand plants difference between the different densities.
In a drought year, we reached the higher yield in the earlier sowing date and with the lower lower plant density of 70 thousand plants ha-1-. The maximum yield, depending on the agrotechnical factors, was 10–12 t ha-1 in 2015, while in 2016 it was 14–16 t ha-1. Yield stability can be increased using hybrid-specific cultivation techniques. -
Electronic Tools for English Language Education (with a special view to English for Specific Purposes)
19-22Views:214Almost simultaneously with the developments in information technology over the past fifteen to twenty years, literacy has gained new dimensions. To be considered literate in our age demands functional, academic, critical and technological skills. Because language and technology are inseparable in this context, technology as a means for developing literacy skills must be an integral part of the language class.
This paper examines some of the ways electronic tools can be of use in developing student language literacy competences, with a special emphasis on the benefits learners of English for Specific Purposes can reap.