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Porovnání výnosu a kvality zrna u vybraných odrůd pšenice ozimé v konvenčním a ekologickém způsobu pěstování
Voňková, Terezie
This bachelor thesis aimed to compare the yield and grain quality of eight varieties of winter wheat grown using conventional and organic cultivation practice. The experiment was conducted at the Field Experimental Station in Žabčice, and the varieties included Genius, Butterfly, LG Orlice, Illusion, Pirueta, Mercedes, LG Absalon, and RGT Telemark. All these varieties were registered for conventional farming and are tested for suitability for organic farming. Two experiments were established in the same field with the same fore crop of alfalfa (Medicago sativa). The organic experiment was grown in accordance with eco-farming regulations. The basic parameters for baking quality were determined at the Breeding Station RAGT Czech s.r.o. in Branišovice. This thesis compares results of yield, thousand seed weight, protein concentration in dry matter, Zeleny sediment test, falling number amount and wet gluten content. Yield of most of varieties was higher in the conventional experiment than in the organic experiment. The average yield of the conventional experiment was 0,56 t·ha-1 higher than the average yield of the organic experiment. The difference of thousand seed weight and all of tested parametres of quality ended same as in yield comparison. The conventional experiment was 0,5 g higher in thousand seed weight than the organic experiment. In Zeleny sediment test was results of conventional experiment 2,5 ml higher than in the organic experiment. The conventional experiment had 0,6 % higher protein concentration in dry matter. The conventional experiment had 26 s higher falling number than the organic experiment. The wet gluten content was 0,7 % higher in conventional experiment than in organic experiment. Overall the conventional experiment had higher yield and better quality in all aspects than the organic experiment.
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Vliv dusíkato-sirných hnojiv s humáty na výnos a kvalitu pšenice ozimé
Dostal, Tadeáš
The aim of diploma thesis was to examined the effect of humate addition to nitrogen fertilizers with sulfur on yield and qualitative parameters of the winter wheat. The ex-periment was established as a two-years small-plot field experiment. The experiment was established on two experimentation locations – Žabčice and Vatín. Because of the high number of factors, two multifactor analyzes were performed in the statistical evaluation. The variant of fertilization included in the experiment are: DASA (amonnium sul-phate nitrate), DASAMAG (amonnium sulphate nitrate and magnesite) and MAGNI-SUL (amonnium suplhate nitrate and magnesite) with their analogies DASA H, DASAMAG H a MAGNISUL H with the humate addition in form of lignite. Ferti-lizers were applied in two terms either regenerative or productive. The highest statistical differences were achieved for the factors of the locality and the year. The average yileds achieved in Žabčice were higher in comparison with Vatín (the difference was 0,45 t/ha respectively 5,7 %). There were observed higher average yields in the year 2017 beside the year 2016 (the difference was 1,86 t/ha respectively 26,1 %). There were also recorded higher values of qualitative parameters in Žabčice in 2017. Based on the results, it can be stated that the best average yields and the other monitored parameters were in Žabčice 2017. There were no statistical differences between variants with and without humate. The highest average yield achieved variant fertilization with DASA. Only variant MAGNI-SUL H achieved higher yield than variant MAGNISUL (the difference was minimal, 0,2 %). MAGNISUL H was the only variant that achieved higher average volume weight and sediment values compared to the fertilizers without the humate addition. The term of application did not prove to be statistically significant.
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