Search for dissertations about: "Crop production management system thesis 2015"

Found 3 swedish dissertations containing the words Crop production management system thesis 2015.

  2. 1. Ecosystems in the Anthropocene: the role of cropland management for carbon and nitrogen cycle processes

    Author : Stefan Olin; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbon; Nitrogen; DVM; Ecosystem modelling; Cropland; Management; Yields;

    Abstract : Through deforestation and conversion of natural ecosystems to croplands and pastures, have humans released vast amounts of carbon (C) dioxide (CO2) into the atmosphere. Roughly one third of the cumulative anthropogenic emissions until today stem from these practices, the remainder being mostly due to fossil fuel combustion. READ MORE

  4. 2. PV water pumping systems for agricultural applications

    Author : Pietro Elia Campana; Jinyue Yan; Hailong Li; Lawrence Kazmerski; Mälardalens högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy- and Environmental Engineering; energi- och miljöteknik;

    Abstract : Grassland and farmland degradation is considered as one of the worst environmental and economic threats for China. The degradation process negatively affects food and water security, economy, society and climate changes. READ MORE

  5. 3. Irrigation with saline water using low-cost drip-irrigation systems in sub-Saharan Africa

    Author : Louise Karlberg; Per-Erik Jansson; Reinder Feddes; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Water use efficiency; Radiation use efficiency; Management techniques; Modelling; Tomato; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : In the scope of future population support, agricultural productivity, in particular in sub-Saharan Africa, has to increase drastically to meet the UN’s millennium development goals of eradicating extreme poverty and hunger by 2015. Water availability in the root-zone limits crop production in large parts of the developing world. READ MORE