Uppsatser om fertilizers

49 uppsatser · sida 1 av 4

Värdering av kvävet i organiska gödselmedel :

Examensarbete · SLU

… from the food industry to cover their nitrogen needs. These different organic fertilizers release nitrogen at different rates and under specific soil conditions. Because of this, it would be beneficial to have a standardized method to measure the amount and rate of nitrogen …

Effects of biogas residues on respiration and denitrification in arable soil

evaluation of methods, microbial activity and agronomic implications

Masteruppsats · SLU

… of four different BR and to find a viable procedure for evaluating slurry fertilizers. Two experiments where soil respiration and soil potential denitrification activity (PDA) was measured at fertilizer addition were performed. As controls pig slurry (PS) was used in both …

Ha?llbar sockerrörsodling för etanolframsta?llning i Brasilien

Hur slagkraftig a?r dagens ha?llbarhetscertifiering och kan den föra?ndra mark- och vattenpa?verkan fra?n odlingarna?

Examensarbete, grundnivå · KTH

… scenarios where the cultivation differed in harvest type and how much fertilizers were added. This was to distiguince potential differences in the budgets of carbon and nitrogen. The largest environmental impacts is due to leakage of nutrients and sedimentation of water streams …

Nutrient effects on microorganism communities in nutrient poor soils

Magisteruppsats · SLU

Better, more efficient fertilizers with great productivity and economic returns are needed, but it is important today to find fertilizers that are also sustainable. It is also important to carefully monitor their impact on the environment, including potential side-effects. In …

Pilotstudie för att utvärdera effekten av L-Mesitran

honungsbaserad sårsalva : vid behandling av yt-pyodermi hos hund.

Övrigt arbete · SLU

… ley is higher in Eastern Gothia where the access to alternative organic fertilizers is also better. In the same region the multi ma-chine System Cameleon is used, which enables new crop sequences within organic farm-ing, where weed control is performed by harrowing.The use of …

Gröngödslingens roll i odlingssystemet

en jämförelse mellan Mälarregionen och Östergötland

Kandidatuppsats · SLU

… ley is higher in Eastern Gothia where the access to alternative organic fertilizers is also better. In the same region the multi ma-chine System Cameleon is used, which enables new crop sequences within organic farm-ing, where weed control is performed by harrowing.The use of …

Challenges and incentives for sustainable manure management in Russia

Övrigt arbete · SLU

… value and the soil conditioning organic matter. The subsidy on mineral fertilizers is though an important contributing factor to bad manure usage. The development of biogas production in Russia may seem tempting, looking at the amounts of produced manure. But in reality, this is …

Produktionsvåtmarker mot övergödning

D-uppsats · Högskolan i Halmstad

In ambition to produce more and better harvests, artificial fertilizers are used to produce a better growth of crops in the agriculture landscape. This contributes to leakage of nutrients. Our forests also exhibit a leakage of nutrients. Air pollution contributes to more …

Användning av rötrest från kombinerad etanol och biogasproduktion

en jämförelse mellan tre alternativ

Examensarbete, avancerad nivå · SLU

… was life cycle analysis theory. The residue was assumed to replace mineral fertilizers or solid fuels. Each system was credited for avoided environmental impact and energy from avoided production/ use of fertilizer/fuel. Advantages for system 1 were the possibility to market the …

Fosforläckage från växtodling - orsaker och ågärder :

Examensarbete · SLU

… In order to provide for plant available phosphorus, it is applied as mineral fertilizers and farmyard manure. However, that causes phosphorus leaching from arable land to surrounding surface waters and lakes and contributes to the eutrofication. There are three types of soils in …

Är bor nödvändigt vid skogsgödsling i Sverige?

Magisteruppsats · SLU

… boron in Swedishforest fertilization. Boron has been added to Swedish forest fertilizers since the beginning of the1980s. This makes the fertilizers more expensive and therefore has the necessity of boron inSwedish forest fertilization been raised.The Swedish bedrock generally …

Hållbar växtnäringshantering i Stockholms län

En aktörsanalys

Examensarbete, avancerad nivå · Uppsala universitet

… plantnutrients is that finite recourses are used in the production of mineral fertilizers. Forinstance the limited economical life-span of phosphorus rock might lead to globalconsequences such as unequal distribution of the fertilizers which can increase thehunger around the …

Ekologisk bomull - Ett steg till ett grönare företag

Kandidatuppsats · Högskolan i Borås · 2011

… the cotton production is very stressful for the environment. Toxic chemicals, fertilizers and big amounts of water are used during the cultivation. As the cotton crop is extremely resource intensive all clothing companies must demonstrate their commitment to this issue. This can …