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Vliv druhově bohatých meziplodin na půdu
Žák, Oldřich
Sufficient organic matter in the soil is necessary to maintain soil fertility. Numerous studies show that using cover crop mixtures can better prevent erosion, increase yields of the main crop, reduce pesticides and herbicides, reduce fertiliser, reduce diseases and pests, ultimately prevent nitrogen leaching and improve the overall impact of farming on biodiversity. Our experiment suggests that the impact of species-rich cover crops could be positive if proper management is followed.
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Porovnání vlivu aplikace biologického odpadu ze zpracování Jatropha curcas L. a kompostu na vybrané půdní ukazatele a pěstovanou rostlinu
Foltýnová, Anna
This Master's thesis is focused on problems of modern agriculture. Current agriculture is facing many problems that already exceed the production area. Among these belong soil degradation caused by inappropriate agricultural practices, erosion phenomena, etc. Both developed and developing countries have experienced these problems. This soil degradation is mainly caused due to lack of soil organic matter content. Current agriculture therefore faces the issue of how to solve this problem. A simple solution is based on increasing the content of the soil organic matter in arable land. In the first part, this thesis describes various problems of modern agriculture and also suggests possible solutions. Regarding to content of soil organic matter, the thesis proposes solutions in the form of compost application into the soil. Besides compost, thesis presents an alternative organic fertilizer Jatropha seed cake. Jatropha seed cake is produced as waste after oil extraction from seeds of Jatropha curcas L. In the first part both of these substrates are further described, along with characterization of Jatropha curcas L. The aim of this thesis was to compare the fertilizing effects of Jatropha seed cake with compost. For this purpose, a pot experiment was conducted under controlled laboratory conditions. Application effect of Jatropha seed cake and compost on soil and plants was monitored at selected soil indicators. The results describe the impact of Jatropha seed cake and compost application on production of plant biomass, soil hydrophobicity rate, mineral nitrogen mobility and soil microbial activity.
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Porovnání vlivu aplikace biologického odpadu ze zpracování Jatropha curcas L. a kompostu na vybrané půdní ukazatele a pěstovanou rostlinu
Foltýnová, Anna
This Master's thesis is focused on problems of modern agriculture. Current agriculture is facing many problems that already exceed the production area. Among these belong soil degradation caused by inappropriate agricultural practices, erosion phenomena, etc. Both developed and developing countries have experienced these problems. This soil degradation is mainly caused due to lack of soil organic matter content. Current agriculture therefore faces the issue of how to solve this problem. A simple solution is based on increasing the content of the soil organic matter in arable land. In the first part, this thesis describes various problems of modern agriculture and also suggests possible solutions. Regarding to content of soil organic matter, the thesis proposes solutions in the form of compost application into the soil. Besides compost, thesis presents an alternative organic fertilizer Jatropha seed cake. Jatropha seed cake is produced as waste after oil extraction from seeds of Jatropha curcas L. In the first part both of these substrates are further described, along with characterization of Jatropha curcas L. The aim of this thesis was to compare the fertilizing effects of Jatropha seed cake with compost. For this purpose, a pot experiment was conducted under controlled laboratory conditions. Application effect of Jatropha seed cake and compost on soil and plants was monitored at selected soil indicators. The results describe the impact of Jatropha seed cake and compost application on production of plant biomass, soil hydrophobicity rate, mineral nitrogen mobility and soil microbial activity.
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Pícniny v osevních postupech a ve výživě zvířat
Sláma, Miloš
The aim of the study was to assess the development of crop rotations with regard to the current state of fodder crops, when it began to wane sown forage and reduce the number of cattle as well. The thesis also deals with the principle of crop rotation, the appropriateness of including different types of forages and the influence of the inclusion of forage in crop rotation and nutrient parametres of cattle. Properly assembled crop rotation contributes to the smooth growing of plants and enrichment of the soil by a large number of underground and aboveground phytomass. Classification of forages contributes in many cases to increase soil fertility. Very suitable in this context is inclusion legumes, particularly clover plants, but also pea, which leave large quantities of crop residues and also due to symbiotic root with nodule bacteria fix atmospheric nitrogen. In ruminant rations represent an important source of protein components. The greatest use of legumes in feed industry is sown alfalfa and clover. To complement the carbohydrate components of the feeding dose is of utmost importance to maize silage, which is due root crops character with possible direct fertilization also improving crop in crop rotations.
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