Uppsatser om fertilizers
49 uppsatser · sida 1 av 4
Kandidatuppsats · SLU
… crops increases. The aim of this study is to evaluate what impact the use of fertilizers and improved seeds has for farmer’s economic situation and income generation. The study is concerning the production of maize and beans. These two research questions were used to answer the …
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 …
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 …
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 …
Kandidatuppsats · SLU
… to explore opportunities to enhance the phosphorus use efficiencyof inorganic fertilizers in crop production, with techniques available today and in thefuture. Phosphorus is a finite resource of declining quality; therefore a phosphorus use efficiencyin crop production of only …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …
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 …