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Possibilities of winter rape cropstands establishment
TUPÁ, Jiřina
This thesis is concerned by importance and possibilities of winter oilseed rape growths foundation. At first, thesis briefly describes characteristics of oilseed rape and its life cycle. At second, thesis summarizes the information about demands for nutrients of particular elements which are necessary for optimal yield index, health condition, problematic of adverse effects and hibernation, diversity of species and quality of seed production. Possibilities of growths founding are related to growing technologies, which are given by experience of leading worker and financial possibilities of a company. First possibility how to prepare ideal conditions for evolution and growth is usage of classic soil preparation. Thus to use a tillage which guarantees a quality conditions for strong and deep root, which is resistant to low temperatures and pulling off the soil, therefore to losses of plants and so that to decreases of yield. Next possibility is to use a system of minimizing preparation of soil, where the tillage is skipped and replaced by loosening of soil. In this process we to thoroughly take into account weed and second growth. In the last years the second system becomes more significant. Last system to found a growth is usage of direct sowing. This system is known as soil-protective cultivation and is used when there is a lack of time to prepare seedbed. The objective of the thesis is to determine the possibilities of oilseed rape growths foundation and to explain which differences and advantages are available in particular cases. Results of the researches show that the most suitable system is to process the soil by tillage and to use sowing combination. It guarantees accurate sowing and minimizes harvest losses.
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