Uppsatser om fertilizers

49 uppsatser · sida 3 av 4

Slam ? en outnyttjad resurs i skogsbruket

Kandidatuppsats · SLU

… In order to get the same application amount of nitrogen as for mineral fertilizers about seven times more sewage sludge has to be applied to the land. The problem is that the sludge contains organic pollutants and heavy metals. Sewage sludge also contains pathogens, but they are …

RTLS - real time location systems

an inventory study for agriculture applications and requirements

Övrigt arbete · SLU

… areas of application, such as digital recordkeeping of applied inputs, e.g. fertilizers and pesticides, and environmental monitoring to forecast disease outbreaks or give precise and automatic irrigation. RTLS can also be used to trace agricultural goods through the distribution …

Spårelement i Sveriges jordbruksmark

flöden, trender och fältbalanser

Magisteruppsats · SLU

… of -15% and -6 % over a 100-years period on crop farms when only commercial fertilizers are being used.The concentrations of Hg and Pb tend to increase in the topsoil on crop farms with more than 3 % forHg and with 2 % for Pb in 100 years. There is today balance between supply …

Transnationell kooperation

en studie av DLA Agro

Övrigt arbete · SLU

… costs and thus improve efficiency. The Swedish market for commodities (fertilizers and pesticides) in agriculture has for many years been dominated by a few large players, with little opportunity for grain associations and local grain companies to offer their customers a varied …

Fertilization in Eucalyptus urophylla plantations in Guangxi, southern China

Magisteruppsats · SLU

… treatment. The three max-fertilized treatments havegotten the amounts of fertilizers decided after leaf-nutrient analysis. If the nutrient analysisrevealed that the concentration of a specific nutrient was too low, extra amounts of thatnutrient were included in the next …

English Arts and Crafts gardens and how they can be modernised in Sweden

Examensarbete, avancerad nivå · SLU

… by choosing the right plant for the right location so that no extra water or fertilizers needs to be added. In other words, find inspiration from the habitats of nature which in turn will decrease maintenance. Other ways are of minimising labour are using hardy plants, turning …

Organizing for value creation

a corporate perspective on urban farming

Magisteruppsats · SLU

… Cultivation in green houses allows for minimal use of pesticides and fertilizers and can also upscale benefits of urban farming. When it comes to how values are created, a number of organizational aspects are essential. First, economic value creation is a corporate pre-requisite …

Safe retrieval of nutrients to improve food security

Kandidatuppsats · SLU

… instead of being assumed as waste. Human faeces and urine is excellent fertilizers which may close the nutrient loop if utilized properly. However, sanitation of the excreta is required to prevent disease transmission by reducing the content of gastrointestinal pathogens such as …

Undersökning av utökade användningsområden för Lotsbroverkets slam

Examensarbete, avancerad nivå · Uppsala universitet

… 95% of the island's farmers are connected.The program controls the use of fertilizers i.e. by setting maximum permitted levels ofphosphorus. Since sewage sludge contains relatively much phosphorus it may be alimitation of the use of sewage sludge on agricultural land of the …

Optimerad hygienisering vid kompostering av avloppsslam

Kandidatuppsats · SLU

… in nutrients and humus-forming materials could replace parts of the commercial fertilizers used in Sweden today. owever, sewage sludge contains undesirable substances such as heavy metals and drug residues, and pathogenic microorganisms. Sewage sludge must therefore be sanitized …

Hållbar köttproduktion och köttkonsumtion i Dalarna

Masteruppsats · Uppsala universitet

… e.g. use of natural grazing areas, maintenance of biodiversity, minor use of fertilizers and pesticides, use of land (pasture/leys) that otherwise would not be used for production of human food for direct consumption (e.g. grain) since the land is not suitable for that. To sum …

BAMBUVISKOS ” En hållbar fiber för framtiden”

Kandidatuppsats · Högskolan i Borås · 2013

… used for pulp production, differences in land use, use of pesticides and fertilizers as well as absorption of carbon dioxide differ. Pulp and fibre production should be integrated to reduce energy consumption and the amount of chemicals used. The energy can also be recycled to a …