Sökning: "agricultural residue"
Visar resultat 1 - 5 av 33 avhandlingar innehållade orden agricultural residue.
1. Phosphorus leaching from Swedish arable organic soils : quantification and mitigation using biochar
Sammanfattning : Organic soils account for 9% or ~225,000 ha of Sweden’s 2.5 million ha of agricultural land, with around half being intensively cultivated. LÄS MER
2. Microbial communities in paddy fields in the Mekong delta of Vietnam : functional and molecular diversity
Sammanfattning : Rice paddy fields are considered to be unique ecosystems. Intensive rice cultivation was developed to increase yield and to meet the need of food security. LÄS MER
3. Nitrogen dynamics in crop sequences with winter oilseed rape and winter wheat
Sammanfattning : With the aim of improving fertiliser nitrogen (N) strategies and reducing N leaching, seasonal changes in soil N supply in crop sequences with winter wheat after winter oilseed rape were examined through field experiments. Break crop effects on wheat after oilseed rape, compared with after peas and oats, were determined as regards residual N, yield and optimum N rate (Opt-N). LÄS MER
4. Potato mop-top virus: Variability, Movement and Suppression of Host Defence
Sammanfattning : Potato mop-top virus (PMTV) causes an economically damaging disease called potato spraing. Despite being reported across the potato growing regions in the world, very little genetic variability has been reported for the virus. LÄS MER
5. Production and engineering of a xyloglucan endo-transglycosylase from Populus tremula x tremuloides
Sammanfattning : The aim of this work was to develop a production process for the enzyme xyloglucan endo-transglycosylase from Populus tremula x tremuloides (PttXET16-34). The natural transglycosylating activity of this enzyme has previously been employed in a XET-Technology. LÄS MER