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Minimalizační a půdoochranné technologie uplatněné při pěstování kukuřice na zrno
Adámek, Josef
This bachelor thesis compares the influence of various examples of soil tillage on the changes of soil properties and grain corn yield. It contrasts measuring results from a long-term experiment of grain corn monoculture. The thesis uses results from years 2012 to 2014. The field experiment was carried out in a grain corn production area on brown medium heavy soil. There were three alternatives of soil tillage compared -- convention tillage, minimum tillage and no-till. During the observed time from 2012 to 2014, the highest average yield was achieved in the alternative with convention tillage. The highest average grain corn yield was reached in 2013 with convention tillage (10,2 t.ha-1), the lowest in 2014 with no-till (4,99 t.ha-1). The comparison of the influence of various examples of soil tillage on the soil properties showed values which refer to the problem of soil compaction. This finding was proved also by soil research with the help of penetrometer measuring. Critical values of soil compaction were detected in the depth of 0,10-0,30 m in the no-till alternative. This compaction results in the decrease of minimal air capacity under 10 %. Excessive soil compaction was also detected in the depth of 0,20-0,30 m in the minimum tillage alternative. Negative compaction was not proved in the convention tillage alternative. From the observation results and experience gained from practice it is possible to recommend minimum tillage as the most optimal alternative for grain corn production in this area. The use of minimization is optimal for grain corn growth and evolution and in comparison with convention tillage it is more soil-friendly, more efficient with regard to the use of labour force and more profitable.
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Možnosti využití technologií precizního zemědělství v zemědělském podniku
Škoda, Vítězslav
The topic of my thesis is "Possibilities of using technology in precision agriculture on the farm." The thesis dealt with explanation of technologies used in precision agriculture which can be used in practice and their benefits, problems, economy, present and future of these technologies. Informations were drawn from foreign publications and consulted the issues with experts and companies who are engaged in precision agriculture. I was studying possibilities of using precision agriculture in my research on the farm which manages 475 ha agricultural land. Based on the analysis of the location and farm management I evaluated investment opportunities in the technologies of precision agriculture and their economic benefits for the farm and its advantages and disadvantages.. I found out that not all investments in precision agriculture make sense in specific conditions.
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Hodnocení erodibility vybraných hlavních půdních jednotek (BPEJ) s využitím ke specifikaci faktoru erodovatelnosti v rámci RUSLE
Rosíková, Jana
The soil erosion is one of the most important factor which brings about modification of landscape. Presently, there is more than half of the agricultural land resources endangered in the Czech Republic, in particular by the water erosion. The aim of this thesis is to evaluate susceptibility of selected soil units to the water erosion by force of erodibility factor (K-factor) which is one of the input parameter of Revised Universal Soil Loss Equation (RUSLE). Seven types of soil appearing at agricultural land at the South surroundings of town Brno were selected for the pedological exploration and following determining of the K-factor. On the basis of K-factor figures a map depicting variability of the area from view diversity of susceptibility to the water erosion was made. Soil slaking is closely connected to the soil erosion which characterize the soil from the view of crumbling of soil aggregates and inlay of the soil surface. The susceptibility of the selected soil types to destruction of the soil structure was assessed in this thesis. Further, the task of comparison between present attributes of the soil and the data of Complex exploration agricultural land, which were the base of evaluating dynamic of the development of soil environment, is dealt.
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