Sökning: "organic fertilizer"
Visar resultat 11 - 15 av 137 uppsatser innehållade orden organic fertilizer.
11. Modelling organic farming systems : is livestock needed for a functioning nitrogen cycle and food production?
Master-uppsats, SLU/Dept. of Energy and TechnologySammanfattning : Livestock has always been an integral part of nutrient management on organic farms. Environmental, economic and idieological trends are leading to an increasing specialization of agriculture away from mixed farms with livestock. LÄS MER
12. Investigation of Potentially Toxic Elements in Agriculture Soil : Greenhouse and Open-field Farming in Türkiye
Master-uppsats, Linköpings universitet/Tema MiljöförändringSammanfattning : Greenhouse food production has intensive fertilizer practices, and it leads to contamination in the soil and food chains. This study investigated the potentially toxic elements (As, Pb, Zn, Cd, Cr, Cu, and Ni) (PTE) in agriculture soil and their bioaccumulation by dragon fruit and banana. LÄS MER
13. Investigating organic fertilisers’ ability to mineralize during the first month of plant propagation
Master-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : There are many forms of organc fertilizers produced and sold in the EU, and it can be difficult to assess which ones are the best in regards of nutrient content and the rate of mineraliztion. Two separate trials were conducted to assess the mineralization rates of three different organic fertilizers, available for private customers, on the Swedish market. LÄS MER
14. An Environmental (LCA) and economic assessment (LCC) of on-farm and centralized alternatives for biogas production for two Swedish farms in Götene
Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknikSammanfattning : Biogas production through anaerobic digestion is an important part towards the achievement of a bio-based and circular economy in Sweden. In fact, Swedish government proposed a strategy suggesting that biogas production should be increased from 2 TWh today to 7 TWh by 2030. LÄS MER
15. Separation and acidification of digested animal manure : properties of the future organic fertilizers
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and EnvironmentSammanfattning : Agricultural areas with a high animal density contribute to eutrophication in waterbodies and seas worldwide due to accumulation of nutrients around animal farms. Animal manure is heavy and bulky, thus unpractical to transport long distances and new techniques have been developed to refine animal manure and make it easier to transport. LÄS MER