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Chernozem soil-type forms 11% of the agricultural land fund in the Czech Republic. It is located in the driest and warmest regions of the Czech Republic. It occurs up to an altitude of 300 m a. s. l. with an average annual temperature of 8 В°C and an annual precipitation of 450 - 650 mm. The very thick humus horizon was formed by the accumulation of humus under the steppe or forest-steppe vegetation. In the Czech Republic, such land is exclusively used for agricultural purposes. Therefore, its character of steppe ...

Soil degradation is a global problem which is steadily growing. The consequences of soil degradation are environmental, economic and social. This work deals with degradation of physical properties of soil. The aim of the paper is to determine the effect of soil compaction on its retention. For this purpose, 16 plots with soil type cambisols were selected. Physical properties of eight plots are assessed as undegraded and eight as degraded. We focused mainly on bulk density and porosity as indicators of over-compact...

One of the important factors affecting nutrient uptake by the root system of the plants includes soil reaction. Increased soil acidity may adversely affect the use of biogenic nutrients, such as phosphorus, potassium, calcium, magnesium, sulphur and molybdenum. In soil, nutrients are immobilized to insoluble forms. Although their amount in soil may be sufficient, the plants cannot obtain the optimal quantities, causing a decrease in the yield or production quality. On the other hand, in the metabolism of plants, a...

Up to 50% of arable land is threatened by water erosion in the Czech Republic. Annually, water erosion causes billions of dollars of damage. It is especially reflected in the reduction in value of agricultural land and yield of the erosion damaged soil. In erosion affected areas, the soil is washed off and depleted of the finest particles binding nutrients and contributing to the formation of humus. In our study, we include five effects of water erosion on the content and quality of humus in chernozem, in topsoil,...

Water erosion is not only agricultural but also environmental problem. Water erosion washes off the finest particles that bind nutrients and other substances. These nutrients are piled up in the accumulation part of the slope. In the worst case, they are completely washed off the farmland, i.e. into water reservoirs and water courses. Additionally, damage to soil and its depletion of nutrients is reflected in lower yields. The aim of our study is to determine the effect of water erosion on total nitrogen content a...

Depletion of soil fertility due to decrease in soil organic matter content represents a considerable problem in both developed and undeveloped countries. This paper deals with the comparison of compost (Cp) and mineral nitrogen fertilizer (NF) application on selected soil parameters which indicate state of soil environment, its health and quality. The main objectives of this study were (a) to investigate influence of Cp and NF application on total nitrogen (TN) and carbon (TC) content in soil (b), to determine pos...

Variable rate application (VRA) of mineral nitrogen fertilizers (NF) represents one of the parts of the new farming practice пїЅ precision agriculture. VRA has been developed to address the spatial variability of fields and vegetation. The objective of this study was to assess the potential effect of VRA of NF on qualitative parameters of grain and grain yield in real farm conditions. Assessment of the potential effect of VAR of NF application was performed in Spearhead Czech Company which has been using VAR techn...