Dr. Levente Komarek

Spatial and temporal changes in some indicators of Hungarian forest management

The use of forests, a versatile multi-purpose forestry sector can only be maintained through the achievement of significant quality standards required by the increased 21st-century environmental, social and economic needs. Nowadays it is a favourable condition that Hungary is a member of the European Union and, consequently, the country can apply for EU funds in the field of forest management. Unfortunately, the approximately 14 years before the accession were not without problems in this area either.In the forest management of Hungary some economic difficulties and privatization issues have emerged since the regime change, which made it difficult slowing down the dynamic development of forest management. However, since the regime change this sector recovered within a few years and the development started, with the result that now the Hungarian forest area reached 1 935.8 thousand hectares. Nevertheless, Hungary is still one of the countries in the European Union having less favourable indicators for the forest cover. Over the past 24 years there was a growing tendency regarding forest areas. Compared to 1990, the Hungarian forest area increased by 14.2% in 2014. It is expected to keep growing in the future as well in case forestation and deforestation (forestation and felling) will ...

Dr. Peter Jakab

Dr. Levente Komarek

THE EFFECT OF FOLIAR APPLICATION OF DIFFERENT FERTILIZERS ON TECHNOLOGICAL AND ECONOMICAL PARAMETERS OF CORN

Many agro-technical factors are of great importance concerning the amount of crop in corn production. One of these factors is nutrient supply. Plants are supplied with macro-, meso- and microelements. Nowadays cultivated plants cannot always obtain enough microelements from the soil, therefore the importance of foliar fertilization increased. Applied at the right time, foliar fertilization might increase the resistance of corn against biotic and abiotic factors as well. In the experiment the authors examined the effect of three foliar fertilizer products and their combinations on the important elements of the crop development of corn, and their application from economic point of view. The experiment was set in three repeats in random blocks on meadow soil in 2015. The nitrogen supply of the soil is good, the phosphorus and potassium supply is very good, however the zinc content of the soil is low. The corn yield without foliar fertilisation was 6.39 t/ha. The highest yields were achieved after the following treatments: Amalgerol + Fitohorm Turbo Zn (7.50 t/ha), Fitohorm Turbo Zn (7.35 t/ha), and Algafix + Fitohorm Turbo Zn (6.94 t/ha). Treatments with products containing Zn resulted in the best amounts of yields indicating that the low Zn levels of the ...