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857 Uppsatser om Plantöverlevnad - Sida 21 av 58

Plantetablering och tillvÀxt för sÄdd och planterad tall 2-5 Är efter markberedning med harv eller Huminmix-teknik inom Holmen Skog distrikt Norsjö :

The objective of this work was to compare the environmentally gentle soil scarification technique Huminmix (with possibilities to do track-grinding/HMMspÄr, long-scraping/HMMlÄngflÀck and mounding/HMMhög) with conventional disc trencher, concerning seedling establishment and growth of direct seeded and planted Scots pine seedlings. Inventories were made during June and July 2005, in 34 seeded and 6 planted stands from 2000 ? 2004 (1- 5 years old) of lichen- and myrtillus/vaccinum-type in Holmen Skog ABŽs district Norsjö in VÀsterbotten. The Huminmix-technique had been used for HMMspÄr in the seeded stands and for HMMhög in the planted stands (HMMlÄngflÀck has been used from the year 2006 for direct seeding). The studied stands had been seeded with the same amount of seeds according to stand data.

Effect of liming and free Ca2+ on Cd uptake of carrots, Daucus carota

The level of cadmium (Cd) in Swedish arable land has increased during the last century and the average concentration of Cd in the plough layer is today 0.23 mg/kg. The increase is mainly due to anthropogenic activities such as phosphorus fertilizing, liming, import of feed, and atmospheric deposition from industrial emissions. Cadmium in the soil will be taken up by crops and is thereby transferred to humans via food. Carrot is one of the crops of concern, both because it may contain quite high Cd concentrations and due to the large consumption in Sweden. In the body, Cd is stored mainly in the liver and the kidneys and may cause several diseases already at low concentrations.

Majs till mogen skörd :

Corn is an important food and feed crop in the world, in Sweden it?s up till now grown on limited acreages mainly for silage. But I think it can get more important if you can grow it also for grain, because it?s a good animal feed for example, for life stock-, pigsand poultry. On of corns advantage is that it can produce the same amount of dry matter as for example wheat, barley and rise but with 25% less water. I will examine if it possible to grow corn for grain production in the south of Sweden.

HÄllbar design för gravplatser

A well-planned grave with a sustainable selection of plants facilitates easy maintenance for both staff and the holder of the right of burial. It also helps reduce the negative impact on the environment.As in many other areas, the environment is high on the agenda within the cemetery administration. One of the major concerns is the impact of the choice of plants for the grave. Within the industry there is a great motivation and willingness to adapt to a sustainable work mode and this has spawned a number of project works. In autumn 2009 the partnership project, ?Environmental aspects of planning and maintaining graves?, was started in Movium (at The Swedish University of Agricultural Sciences).

Patienters och n?rst?endes perspektiv p? Ej HLR-beslut : Litteratur?versikt

Introduktion: Vid hj?rtstopp upph?r kroppens cirkulation. Omedelbara insatser med hj?rt- och lungr?ddning (HLR) ?r avg?rande f?r ?verlevnad och god prognos. Varje ?r drabbas cirka 13 000 personer i Sverige av hj?rtstopp.

UtvÀrdering av substrat för biogasproduktion

The purpose of this study was to evaluate the different substrates that enter the digestion on Sundet wastewater treatment plant for production of biogas.This work have done an analysis of data about the biogasproduction from January 2012 to feburari 2013, this showed that the food substrates has a greater gas production than internal sludge.Through laboratory test the VS, TS and COD values for all the substrates used in the biogas production could be determinded. But the COD-method was less optimal for analysis of fat and food, therefore it optimized the method for fat but due to time constraints, this could not be done on the food substrates..

Phosphorus in agricultural soils around the Baltic Sea : comparisons of different laboratory methods as indices for phosphorus leaching to waters

Eutrophication of the Baltic Sea is a serious problem. A major contributing factor is diffuse losses of phosphorus (P) from agricultural land in surrounding countries. In order to estimate P losses, environmental monitoring of small agriculture-dominated catchments is being carried out in most of these countries. Evaluation of the risk of P leaching to waters is usually based on chemical tests originally developed to quantify the amount of soil P available for plant production. The tests are performed in different ways in the different countries and a number of different extraction agents are in use.

JÀmförelse av verklig och modellerad elproduktion frÄn en solcellsanlÀggning : En utvÀrdering av tvÄ simuleringsverktyg.

This thesis has been carried out in New Zealand in collaboration with the University of Waikato. In association with Dr. Mike Duke the purpose of this work is to investigate whether two different software for modeling of photovoltaic systems are useful in the teaching of solar energy.The next ten years grid-connected photovoltaic systems are assumed to increase and therefore also a rising demand for people with engineering knowledge are to be predicted. For engineer students with a focus on solar energy a more practical teaching with design softwareÂŽs can be a good method to make the students comprehend more when it comes to large scale photovoltaic systems and be more prepared for working life.The softwareÂŽs used is called Transient System Simulation (TRNSYS) and Photovoltaic Systems (PVSYST) which are both well used throughout the world. To assess the reliability of the softwareÂŽs, a reference solar power plant at 16.1 kWp installed capacity are used, which consists of photovoltaic modules from four different manufacturers.

Simulering av kabelbrÀnder i sekundÀra sÀkerhetssystem med CFD-koden SMAFS

This report contains CFD-simulations of cable tray fires in nuclear power plant applications with the CFD-code SMAFS. Furthermore the report evaluates the use of CFD-codes within this kind of problems. The assessment of this report is that there is a tendency towards the good use of CFD-codes but before using it solely more research has to be done on the subject..

3D Anpassning

This report summarize a simple and efficient way to convert 2D into 3D designs. It explains the benefits of a 3D design compared with 2D, and how those benefits may be used.It will also give the reader a presentation of the company Clean Air Technologies, which for the most part constructs cleaning facilities for power plants. How to create 3D-libraries for some of those facilities will be introduced in this composition.The collaboration with Clean Air Technologies has resulted in several 3D animated movies and rendered images. This has increased the quality of the companies offer presentations, which has made it easier for the prospective customer to get an improved overall image of the power plant design..

SpÄrning av miljöstörande Àmnen i Uppsala stads spillvattennÀt

To the sewer systems households, industries and other activities are connected. The wastewater is collected at treatment plants where a nutritious sludge is produced. The sludge does not only contain nutrients, but also hazardous substances originating from different activities in society. To reduce the flow of hazardous substances to treatment plants and to create a sustainable recycling of plant nutrients the Swedish Water & Wastewater Association has developed the certificate system REVAQ. This certificate requires a good quality of the sludge but also that the treatment plants maps the origin of the unwanted substances.

Ekologisk slaktgrisproduktion i Sverige :

This literature review describes organic pig production in Sweden, its advantages and disadvantages, but also how its problems can be reduced or solved. Organic pigs have the possibility to a more natural behaviour than conventional pigs. With outdoor pigs comes problems, especially during wintertime, concerning water and feed supply, thermal environment and supervision. Parasites and leakage of plant nutrients are other difficulties that comes with outdoor pigs. All problems and difficulties can be reduced or put right through correct management.

Controllerns förÀndrade roll : En systematisk litteraturstudie

Den ha?r studien underso?ker beskrivningar av controllerns roll och dess funktion under tre decennier i Europa. Studien utga?r fra?n en systematisk granskning av vetenskapligt granskade artiklar som publicerats i tolv ledande journaler under perioden 1990-2014. Begrepp och funktioner underso?ks tillsammans med val av forskningens teoretiska ansatser och metoder.Resultatet i studien visar att det finns tydliga faser av forskningens beskrivningar av controllern, en tidig fas da?r rollen frigo?rs fra?n tidigare fo?resta?llningar av en ekonom som hanterar redovisning och kassaflo?den, en mellanfas da?r rollen pa?verkas av exempelvis nya tekniker som IT-sto?d och affa?rssystem leder till att omdefinitioner av rollen anses vara viktiga samt en modern fas da?r tidigare rolluppdelningar ifra?gasa?tts och fokus ligger pa? rollens makt i organisationen och mo?jligheter att skapa sin egen yrkesidentitet.

Fr?n abstrakt begrepp till konkret vardag. Erfarenheter av existentiella fr?gor vid livshotande sjukdom och/eller h?g ?lder

Existentiella fr?gor och tankar beskrivs ofta v?ckas i n?rheten av d?den, exempelvis vid allvarlig sjukdom eller h?g ?lder. Det existentiella tenderar att ben?mnas i abstrakta termer. Samtal framst?lls ofta som den prim?ra st?dinsatsen och v?rdpersonal beskrivs ha en viktig roll i att m?ta existentiella behov.Studiens syfte var att utforska och analysera erfarenheter av existentiella fr?gor vid livshotande sjukdom och/eller h?g ?lder samt att f?rdjupa f?rst?elsen f?r vilka former av st?d som upplevs som meningsfulla.18 semistrukturerade intervjuer genomf?rdes med personer med misst?nkt begr?nsad ?verlevnad relaterat till allvarliga sjukdomstillst?nd eller boende p? v?rd- och omsorgsboende.Studiens fenomenologiska analys med fokus p? livsv?rlden visade att existentiella fr?gor ofta manifesterade sig i praktisk, konkret vardag.

Svampar associerade med raps : betydelse för uppkomst och grödetablering

Oilseed rape is an important crop in Sweden and is grown on about 90000 ha today. The interest in oil seed pro-duction is increasing because of growing demand and high prices for oil seed both in Sweden and Europe. However, an increased intensity in the oil seed production can bring higher risk of yield losses due to fungal diseases. The purpose of this study was to investigate what different fungi are associated with oilseed rape under field conditions and if their incidence is correlated to crop establishment problems. This study was carried out in three parts: 1) investigations on fungal community structure in roots and rhizosphere soils from young spring- and winter rape plants sampled in failed respectively good establishment patches in four fields, 2) investigations on the pathogenicity of fungi isolated from oilseed rape in controlled environment and 3) investigations on the effect of different fungicide seed treatments on germination and early plant development in a field soil naturally infested with damping off- and Verticillium wilt pathogens. The studies on community structure using a combined approach of standard fungal isolation techniques and DNA based methods revealed a high fungal diversity in three out of four studied fields of spring rape and winter rape. For some unknown reason, very few fungal species were identified from the fourth field.

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