206 uppsatser · sida 4 av 14
… mustard in combination with establishment method, give the most effective nitrogen uptake. The main purpose of the catch crops is to reduce leakage of nitrogen. They are sown after the main crop and killed before the next crop. In Sweden the farmers gets subsidies to establish …
… given a lotof restrictions by the Swedish government in order to decrease it’s nitrogen leakageto ground and surface water. Nitrogen is very much affected by the water contentin the soil through microbial activity as well as for transportation in the soil.The aim of this thesis …
… of its shallowness and has a medium depth of only 15 meters. In this bay nitrogen is the limiting nutrient. There are several sources for nitrogen and agricultural land as well as woodlands are the main cause. Interviews has been with wide range of persons to get a grip of what …
… Hydrology Layer Property map or Holmen Forest map will be used for planning nitrogen fertilization in forestry. The background to this study is that nitrogen fertilization near water will increase the risk of nitrogen leaching out into the water systems, which has a negative …
Jämförelse mellan mätmetoderna extraktion, inkubation och jonbytesmembran (PRS-sond)
… was to compare three commonly occurring methods for measuring plant available nitrogen in soils. The methods extraction, incubation and Plant root simulator (PRS) probe - an ion exchange membrane (Western Ag Innovations, Inc., Saskatoon, Canada) method were used and comparison …
… need of being co-digested together with another substrate since the amount of nitrogen that the beets contain are relatively low, and therefore the beets may be in need of co-digest with a substrate that contains a higher amount of nitrogen. For example are manure or …
Jämförelse av färska, stuklagrade samt ensilerade betor i laboratorieskala
… need of being co-digested together with another substrate since the amount of nitrogen that the beets contain are relatively low, and therefore the beets may be in need of co-digest with a substrate that contains a higher amount of nitrogen. For example are manure or …
… randomised complete blocks. The factors were plant combination, nitrogen level and cutting strategy. The plant combinations were couch, couch + ryegrass (Lolium perenne L.), couch + white clover (Trifolium repens L.). Nitrogen levels were 64 and 193 kg N/ha. Cutting carried out …
en utredning om lokaliseringen av Lotsbroverkets utloppsledning
… the mean monthly concentrations of total phosphorous. The situation for total nitrogen was determined with a statistical/empirical regression model between phosphorous and nitrogen concentrations. To estimate the expected ecological effects from a change in the nutrient loading …
… The chemical elements in lakes consist of total phosphorus, total nitrogen, quotient total nitrogen/total phosphorus, chemical oxygen demand, alkalinity and pH-value. The chemical elements in streams consist of area-specific losses of total phosphorus and total nitrogen …
en litteraturgenomgång
… volatilization from animal husbandry is a great contributor to the total nitrogen deposition in nature. Deeplitter system with straw is, because of its active decomposition process, a greater emitter of nitrogen compared to peat and sawdust beds with slow decomposition rate …
… of the dried biowaste, most distinctively for the highest temperature. Nitrogen losses of 21% of the total nitrogen content were noticed. A composting experiment showed that the biowaste heated to the highest temperature was decomposed to a higher degree. It does not, however …
en litteraturstudie
… is because the ash contains all the nutrients that a tree needs, except for nitrogen. On organic soils, the lack of nitrogen is usually not a problem, in contrast to mineral soils. In Finland, ash is spread on organic soils specifically for this purpose; to increase forest …
en kartläggning som ett steg i golfklubbens miljöarbete
… waters is that they can act as a nutrient trap by binding phosphorus and nitrogen. Our analyses showed that nutrient levels in the surface waters were high and that these nutrients generally originated from golfing activities, mainly the use of inappropriate fertiliser for the …
möjligheter till minskade NOx-utsläpp för ENA Energi
Emission of nitrogen oxides as well as carbon monoxides is an inevitable result of combustion. A Swedish law "Law of environmental fee for emissions of nitrogen oxides as a result of energy production" (lagen om miljöavgift på utsläpp av kväveoxider vid energiproduktion (SFS …
