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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Mapování heterogenity půdních podmínek v precizním zemědělství
 Oudová, Barbora
Precision agriculture is an agronomic approach that aims to optimize inputs into agricultural production to achieve balanced, qualitatively and quantitatively the best possible yields, while minimizing the financial costs and maintain or improve the environment. The basic premise of this approach is the knowledge of soil conditions of land used for agricultural production. This information can be found in agronomic records, soil maps or results of agrochemical testing. Indirect methods of soil heterogeneity mapping based on the principle of sensor measurements and remote sensing are also available. Indirect methods for determining the physical-chemical properties of soil are generally user-friendly, cheaper, faster, and have a higher density of measurement points than the sampling of soils. Comparison of direct and indirect methods showed that indirect methods provide a detailed picture of soil variability. However, interpretation of results is affected by many other factors, which are based in the principle of soil het-erogeneity itself.
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Porovnání hnojivé účinnosti digestátů
 Oudová, Barbora
Digestate is a fertilizer produced by anaerobic fermentation in biogas stations. It is used as organic fertilizer. In this study, we compared the fertilising effects of digestate with mineral fertilizer. The vegetation pot experiment was carried out in 2013-2014 in vegeta-tion hall of ÚKZUZ in Brno. We grew Corn (Zea mays L.), Paprika (Capsicum annu-um), Barley (Hordeum vulgare L.) and Peas (Pisum sativum). The crop yield in the first year was comparable or better than mineral fertilized variants. Results in the second year were ambiguous, fertilizing with digestate did not show long-term effects. Digestate with its effects is more similar to mineral fertilizer.
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