Search

Search Results

• Estabilishing Plant Production Systems by Optimising the Crop Structure

  82-84

  Zsolt Dénes Sulyok

  Views:

  74

  In our days, ecologiacal and economic models of agricultural application are of ever increasing significance. These provide an opportunity for more accurate planning, and thus can favourably influence the efficiency and the economic situation of the given enterprise. The relevant literature divides models according to various criteria. The most common is the division between optimising and non-optimising models. Non-olptimising models generally endeavour to make the best use of technological lines, of machine capacity, while optimising models are used to optimise revenues returns from sales; or occasionally, production costs. In our case revenue and returns from sales were optimised. The models examined consists of several modules. These are the following: plant cultivation modules, evaluations (assessment of situation, conception plan, complex corporate evaluation), supplementary sheets (sheets and charts for ancillary plant production, general costs of operation, summary and crops structure optimisation). With the help of the model annual plans of plant cultivation can be made an optimal crop structure may be planned with the resources of the enterprise taken into consideration, and thereby it becomes possible to define the largest net revenue on a corporate level.

• Application of microsatellite fingerprints for pedigree analysis of Hungaricum grapevine varieties

  71-77

  Zsuzsanna Galbács

  Stella Molnár

  Gábor Halász

  Sarolta Hoffmann

  Anikó Veres

  Zsolt Galli

  Antal Szőke

  Zsófia Tóth

  Katalin Pilinszky

  Barnabás Wichmann

  Pál Kozma

  Erzsébet Kiss

  László Heszky

  Views:

  157

  the Carpathian Basin were involved into our examination, which aimed at genotyping their accessions. DNA fingerprints of 101 varieties were determined with 6 microsatellite markers till 2005, resulting in successful discrimination of the accessions. Based on these results for pedigree determination, even more cultivars and primers were involved into the analyses. For studying the origin of Csabagyöngye and for proving the parent-progeny relations of Irsai Olivér and Mátrai muskotály, 19 microsatellite markers were applied, while 11 were selected for tracing the origin of Királyleányka. Genetic distances between the varieties were estimated with cluster analysis and demonstrated by dendrogram, proving that the varieties can be discriminated from each other based on the microsatellite allele sizes. Pedigree of Irsai Olivér and Mátrai muskotály has been confirmed by microsatellite allele size results, searching for the parents of Csabagyöngye and Királyleányka is in progress, since the molecular-marker based pedigree does not correspond with the putative origin of these cultivars. Our results excluded progeny-parent relationships in the
  Csabagyöngye-Bronnerstraube-Muscat ottonel (Ottonel muskotály) and the Királyleányka-Kövérszőlő combinations. 

• The effect of copper fungicides on the rate of photosynthesis and the transpiration of hop plants

  117-123

  Jaroslav Pokorny

  Josef Pulkrábek

  Karel Krofta

  Josef Ježek

  Views:

  117

  The paper evaluates the effect of copper fungicide spraying on the rate of photosynthesis and transpiration of hops, the influence of spraying on the elemental copper content in the leaves and cones hop variety Agnus. Photosynthetic rate was measured by LC pro+ (infrared analyzer) in the Hop Research Institute Saaz in the field in some periods of 2008, 2009 and 2010. Dry cones and leaf samples (taken before and after application of copper fungicides) were analyzed in an accredited laboratory for elemental copper.

• Consumption of fertilizers in districts of Slovakia in the period 2006–2015

  389-398

  Cyril Siman

  Yvetta Velísková

  Views:

  182

  Consumption of fertilizers in districts of Slovakia in the period 2006–2015 Water quality in the surface streams is influenced by several factors. One of important information which can help us to solve problems with quality of water in water body is a distribution of point and non-point pollution sources in a river basin and also amount of pollutants released from them to surface streams. An example of a point source of pollution is the outlet from wastewater treatment plants (industry, urban areas, farms, etc.). On the other hand the most significant non-point source of pollution is considered the application of fertilizers in agriculture.

  In this paper we have evaluated consumption of organic and industrial fertilizers in Slovakia in the period 2006–2015. Total (in tonnes) and average (in kg ha-1) consumption of industrial and organic fertilizers was analyzed. In monitored period, the amount of applied organic fertilizers was much higher than the amount of applied industrial fertilizers and in addition a significant part of total fertilizers consumption had nitrogenous fertilizers in a group of industrial fertilizers. In a group of industrial fertilizers during the period 2006–2015 we observed just moderately increasing in their consumption, while in the period 2010–2015 the average amount of applied industrial fertilizers per hectare of agricultural land increased by about 20 kg ha-1. On the other hand, in a group of organic fertilizers we observed a decreasing in consumption of fertilizers.