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Mimokořenová výživa B, Zn a Mo u kořenové zeleniny
 Očenášková, Květa
There are many external and internal factors which influence the quality and yields of vegetables. Counted among the external factors is nutrition and fertilisation which are an integral part of growing technologies. Without sufficient and balanced supply of acceptable nutrients the plants are not capable of achieving high quality and yields. Among the essential nutrients we also count micro biogenic elements. Although vegetables require only small amounts, their importance is equal to nitrogen, phosphorus, potassium and other macro elements. The first part of the bachelor dissertation thesis maps the present information about the importance of some micro nutrients (B, Zn, Mo) in the nutrition of vegetables. In a two-year vegetation experiment we explored the effect of foliar applications of some micro elements on their content in radish plants and on the yields of the edible part of this root vegetable. The experiment was established as a pot experiment in soil culture. During vegetation we applied the nutrients at graded rates. The effect of the foliar application was evaluated on the basis of analyses of the plant mass and yield parameters. The results showed that foliar nutrition with micro nutrients increased their contents namely in the leaves, but also in the radish roots. Fertilisation had a significant effect on the yields of whole plants in a similar way as on the edible roots. Supplementary fertilisation with the micro nutrients increased roots yields by 7,0 to 46%. Zinc at a rate equal to an application of 700 g Zn.ha-1 had a statistically significant effect on the production of radish roots. Radish yields increased significantly also after the application of molybdenum at a rate equal to 62.5 g Mo.ha-1.
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2 Očenášková, Klára
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