Fieldwork on Integration and Segregation. Team monitoring of the situation in the containing Romani settlements in Slovakia and the students' research in the Czech Republic

Results of the research on the social and cultural boundary line and current relationships between the Romani inhabitants and the majority living in the borougs in northeasten Slovakia. Researches in local communities in the Czech Republic

Hidden Economy of Segregation and Collective Paternalism, or: Why it is important to understand the situation of Slovak villagers - monitoring from the reverse side

Results of the research on the social and cultural boundary line and current relationships between the Romani inhabitants and the majority living in the borougs in northeasten Slovakia. Researches in local communities in the Czech Republic

Residual plant nutrients in crop residues – an important resource

With increasing demand for sustainable production, the need to effectively utilise site-based resources increases. One such resource is the remaining crop residues, both above and below ground, after harvest. In order to assess the magnitude of this resource, this study determined the plant nutrient contribution of residues from 17 different crops in seven different regions of Slovakia over a nine-year period. The soil profile 0.0–0.3 m was taken into account at belowground residues sampling. The results showed that winter rape, mustard, corn maize, triticale, winter rye with straw and sunflower left the most residues, exceeding 8 tons of dry biomass per hectare. Root crops (sugar beet, potatoes) and peas left less than 3 tons of residual dry biomass per hectare. Using these data, the nutrient potential coefficient, i.e. the amount of nutrients left by production of one ton of the main product was calculated by polynomial regression. With these coefficients and the known yield of a given crop, it was possible to calculate how much nitrogen, phosphorus and potassium each crop leaves in the soil after harvest. It was found that the amount of nitrogen left ranged from 20 to 132 kg, phosphorus from 2 to 24 kg and potassium from 13 to 218 kg per hectare. This has to be taken into account when calculating the fertiliser requirement of the subsequent crop in order to achieve better resource utilisation, thereby reducing the risk of eutrophication and improving farm profits by reducing expenditure on fertiliser

Soil Organic Matter and Humic Substances - why to Differentiate these Terms in University Education

Vytauto Didžiojo universitetasŽemės ūkio akademij