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Farming practices for efficient use of nitrogen and reduction of its losses: Certified methodology for practice
Klír, Jan ; Haberle, Jan ; Růžek, Pavel ; Šimon, Tomáš ; Svoboda, Pavel
The methodology describes the main risks of nitrogen losses and recommended practices for their reduction. Practically applicable methods for the evaluation of the nitrate leaching risk depending on the soil, crop, root range, croping system, irrigation and weather conditions are described in detail. Consequently, suitable soil treatments and fertilization are proposed to improve the utilization of the nitrogen and uniformity of the water soaking.
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Příčiny nízkých výnosů obilovin v ekologickém systému pěstování
KOTAŠKA, Vladimír
The aim of this diploma thesis was to find out the causes of low returns on chosen cereals (oat, wheat, rye, and spelled) in ecological agriculture based on evaluating information on growing procedures obtained via the method of questionnaires. Gradually, 21 ecologically farming companies controlled by the Abcert AB a Biokont CZ, s.r.o. organizations were chosen. Based on the analysis of growing procedures, the most frequent mistakes made by farmers were identified. Companies with lower returns apply mainly an inappropriate structure of crops grown, a high representation of cereals, and they do not respect crop rotation principles. Especially in favourble conditions, some farms are run without livestock production. Leguminosae representation is low in most companies, intercrops are used very seldom. In case of straw plow, the C:N ratio is not maintained using manure. Mineral manure is not used at all, liming very seldom. Vegetation is usually not fertilized during vegetation period. Cereal weed regulation is carried out, but not sufficiently. Using farm seed is quite frequent, which increases the growth of weed. Comparing returns on cereal among better and worse companies, it is obvious that respecting given principles may increase return on seed in 1.0 to 1.9 t/ha.
Rye and triticale growing in Czech Republic
The aim of the bachelor thesis is to summarize the knowledge about cultivation of the rye and triticale in the Czech Republic. A partial goal was to summarize the knowledge about the use of life and tritical and the suitability for sustained management systems.
The spring barley fertilization in terms of selected agricultural company
This thesis presents the results of malting barley's fertilization obtained on the basis of a field experiment in an agricultural company. The aim of the work was to determine how the rate of nutrients will affect yield and malting quality. Fertilizing was based on three different rations of LAV fertilizer given to plants in an advanced phase of their growth. The rations of nitrogen were set to 20, 40 and 60 kg per hectare. The positive effect of a late fertilization was observed for yield elements. There has been an increase of the number of grains in the ear and of the weight of a thousand grains. Some malting properties were also improved. It was especially the fraction of the front grain and in part germination. But the content of N-substances exceeded the limit in two of three variants.
Kultivace vybraného sortimentu léčivých a kořeninových rostlin v podmínkách ekologického zemědělství
Vorlíček, Čestmír
Main purpose of this thesis is to concentrate information about actual assortment medicinal, aromatic and root plants (MARP) in Botanicus Company. From the entire assortment of medicinal plants were chosen these: Calendula officinalis, Lavandula angustifolia, Matricaria recutita, Melissa officinalis, Mentha x piperita, Rosmarinus officinalis, Salvia officinalis, Symphytum officinale. Health, term of reaping and yeild is being monitored due to ensure superior resources for production of natural cosmetics. Also there are silvicultural practices, term of reaping and way of processing in the ecological farming´s conditions. Also overall amount of flavinoids and overall antioxidant capacity. Final results are processed in charts and graphs.
Hodnocení růstových a sklizňových údajů netradičního ovocného druhu - kdouloň obecná
Stravová, Martina
This thesis deals with growth and mainly harvest attributes of Cydonia oblonga. There was described history, morphological features, growing conditions, use and including substances characteristic for this fruit specie. On testing space of school agricultural entreprise in Žabčice was graded sortiment of these following 28 varieties:´Asenica´, ´Bereckého´, ´Blanar´, ´BO3´, ´Brna´, ´Buchlovice´, ´Doubravnická´, ´Hemus´ 1, 2, ´Hruškovitá´, ´Champion´, ´Ironda´, ´Izobiljana´, ´Jurák´, ´Juransa´, ´Kocúrova´, ´Leskovačka´, ´Mír´, ´Morava´, ´Muškátová´, ´Otličnica´, ´Pinter´, ´Pražská´, ´Selena´, ´Šuranská´, ´Triumph´, ´Ukrajinská´, ´Úspěch´, ´Vranja´. Found out was the volume of the crown, phenologic phase, total yield of fruit, average weight of fruit, average height and width of fruit, capacity of refractometrical dry matter, total capacity of dry matter and capacity of vitamin C.
Vliv vybraných prvků agrotechniky ozimé řepky na výnos semen a jejich kvalitu
Tomšíček, Libor
This bachelor thesis focuses on the importance of agro-technological elements through-out the cultivation of winter oilseed rape and on their influence on yield and quality of pro-duction. Individual production operations and interventions are described and their im-portance is presented from the point of view of winter oilseed rape growing. The thesis includes a field experiment which tested the influence of late off-root nutri-tion of selected kinds of fertilizers and subsidiary agents on yield and quality of winter oilseed rape seeds. The health status of plants was also assessed. The strength of pods after the treatments with the aim to eliminate harmfulness of pod pests was also part of the testing.
Vliv agrotechniky na produkční charakteristiky a ekonomiku výroby silážní kukuřice
Bártů, Ondřej
The subject of this thesis was through a field experiment to compare the economics of different options silage maize. Comparisons were ways to stand establishment and variants of fertilization, the nitrogen dose was always the same. It analyzed the influence of fertilizer with the addition of sulfur on maize cultivation. When comparing the establishment of vegetation were evaluated influences on selected production characteristics of silage maize. It was evaluated price per sown hectare, more expensive option, seeding side dress treatment under the heel was implemented through agricultural services and cheaper alternative was seeding fertilizer under the heel of machines owned by the company. Fertilization formed the basis of all variants urea applied before seeding at 250 kg per hectare. In cases when fertilizer was applied directly to seed, it was also used urea. The rest to a total dose of 200 kg nitrogen per hectare was in both versions foundation used more fertilizers, which was urea, manure and aqueous solution of ammonium sulphate with urea (SAM). Even if fertilization effects were evaluated at selected production characteristics depending on the price.
Vliv stanoviště a agrotechniky na produkci fytomasy vybraného klonu topolu (Populus nigra L. X Populus maximowiczii Henry) pro energetické účely
The thesis deals with theme of fast-growing species and with the impact of agricultural practices (like choice of location, care and possibility of fertilizers usage) which are the most important factors for successful cultivation of energy tree species. The introductory part of the thesis contains an explanation of the term biomass and its possible distribution by types and ways of obtaining the biomass. Following chapters deal with fast-growing tree species. The issues of cultivation are also described here in parts like basic characteristics, history of these energy species, legislative restrictions and procedure during founding of the plantation itself, selection and preparation of locality, the use of agricultural practices (cultivation, fertilization). The practical part deals with it´s own experiment with a clone of poplar J 105 (Populus nigra L. x Populus maximowiczii Henry). This clone of poplar was planted on four experimental plots. The growth depending on the conditions of habitat and selected agritechnical measures was observed in following years. There are descriptions of conditions on all localities, chosen ways of planting and aftercare about tree vegetation. Another experiment which contained adding different types of nitrogenous fertilizers was performed in the last period of observing. Results showed that the greatest impacts on the quality of the growth of fast-growing trees have properly chosen location and aftercare about tree vegetation, at least in the first vegetation period. Addition of fertilizer seemed as important only in case of planting on nutrient very poor sites.

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