Search for dissertations about: "ryegrass"
Showing result 1 - 5 of 12 swedish dissertations containing the word ryegrass.
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1. Epidemiology of wheat dwarf virus
Abstract : In Sweden and many other parts of Europe, wheat dwarf is one of the most important diseases induced by a plant-infecting virus. Wheat dwarf disease is caused by wheat dwarf virus (WDV), transmitted by the leafhopper Psammotettix alienus. READ MORE
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2. Phosphorus recycling from wastewater to agriculture using reactive filter media
Abstract : This thesis focused on testing the suitability of reactive filter media used for phosphorus (P) removal from wastewater as fertilizers, thus recycling P to agriculture. The work compared the P sorption capacity of several materials in order to assess their suitability as a source of P for plants. READ MORE
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3. Influence of soil amendments and soil properties on macro– and micronutrient availability to microorganisms and plants
Abstract : Utilising by-products from industrial and domestic activities and from bioenergy production is one of the new ways of recovering and re-using nutrient resources in agriculture. However, these by-products can potentially add toxic elements or alter soil properties in ways that harm the soil and related environments. READ MORE
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4. Micronutrients in temperate forage crops grown in Sweden : species differences and effects of phenological development and soil
Abstract : Forage crops are the most important feed for ruminants and provide energy, fibre and protein as well as essential micronutrients such as cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn). In this thesis, different aspects of the micronutrient concentrations of forage crops were investigated in temporary grasslands in Sweden. READ MORE
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5. Greenhouse gas emissions from cultivated peat soils in Sweden
Abstract : Greenhouse gas emissions and peat subsidence are major concerns both from an environmental perspective and for farmers with declining soil production capacity. Agricultural databases, digitised maps of quaternary deposits and 40K radiation have been used in a GIS analysis to estimate the distribution and land use of agricultural organic soils in Sweden. READ MORE