Essays about: "total nitrogen N"

Showing result 1 - 5 of 104 essays containing the words total nitrogen N.

1. 1. Behavioural response in pigs at gas stunning in foam

   University essay from SLU/Dept. of Animal Environment and Health

   Author : Madeleine Persson; [2024]
   Keywords : stunning methods; slaughter; animal welfare; carbon dioxide; high-expansion foam; nitrogen; argon;

   Abstract : There are several stunning methods used for the commercial slaughter of pigs. The two most common are electric stunning and stunning with carbon dioxide gas. It has been shown that there are several problems related to animal welfare in the stunning methods used today in commercial slaughter. READ MORE

3. 2. Platsens betydelse för växtnäringsläckage från jordbruksmark i Sverige

   University essay from SLU/Dept. of Soil and Environment

   Author : Frida Lundell; [2023]
   Keywords : kväve- och fosforutlakning; rumslig variation; långtidsövervakning;

   Abstract : Växtnäringsläckage av kväve (N) och fosfor (P) från jordbruksmark tillför näringsämnen till hav och vattendrag. Det är viktigt att minska transporten av N och P av flera anledningar, då det bland annat är en stor bidragande faktor till övergödning. READ MORE

4. 3. Lifetime CostEffectiveness of Constructed Wetland and Rain Garden Facilities in Relation to Expected  Treatment Performance

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Abdullah Noorhussin Ali; [2023]
   Keywords : Stormwater; Total cost; StormTac; Cost-effectiveness;

   Abstract : The purpose of this thesis is to investigate the cost effectiveness of two different stormwater control measure (SCM) facilities, namely a constructed wetland in Boden and a rain garden in Gothenburg (both Sweden), in relation to treatment efficiency and contributing catchment area. The study approach involved collection of data, construction, and maintenance activities with their respective costs, for the two stormwater control measures from commercial and literature data. READ MORE

5. 4. Forest fertilization does not cause any long-term effects on tree growth or vegetation composition

   University essay from SLU/Dept. of Ecology

   Author : Yixian Chen; [2023]
   Keywords : density; ground vegetation; height; stem radial growth; legacy nitrogen effect; soil total N and C N ratio; tree;

   Abstract : Forest fertilization is considered one of the most effective management options to improve forest productivity. In Fennoscandia, nitrogen (N) fertilization has been practiced for over 50 years and is normally added in the form of granules of NH4NO3 at least 15 years prior to the final harvest. READ MORE

6. 5. Greenhouse gas emissions and carbon burial in a small pond

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Maria Carlson; [2023]
   Keywords : Pond; greenhouse gas; carbon dioxide; methane; nitrous oxide; flux; ebullition; carbon burial; Damm; växthusgas; koldioxid; metan; lustgas; flöde; ebullition; kolbindning;

   Abstract : There are a lot of uncertainties when it comes to global greenhouse gas (GHG) emissions which affects society’s ability to effectively respond to climate change. Small ponds have been found to potentially play a large role in global warming. READ MORE