Essays about: "mineral fertilizers"

Showing result 1 - 5 of 45 essays containing the words mineral fertilizers.

  1. 1. Nutrient flow on agroforestry farms in the province of Son La in northwest Vietnam

    University essay from Uppsala universitet/Vindenergi

    Author : Tula Strotz; [2023]
    Keywords : Agroforestry; contouring grass rows; Guinea grass; nutrient losses; Vietnam; Gräsbarriärer; Höglandsodling; näringsförlust; Träjordbruk; Vietnam;

    Abstract : The population in the high mountains of the northwest provinces of Vietnam belongs to the poorest population in the country. Among the reasons behind this are the high frequency of minority groups in the region and the infertile soils of the steep slopes. READ MORE

  3. 2. Effekten av växtnäring på överlevnad, tillväxt och vitalitet på planterade tall- och granplantor : en studie gjord på ett kontrollerat försök på en lokal i Västerbotten

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Erik Wickberg; [2023]
    Keywords : Växtnäring; Plantering; Plantering; Plantering; Planteringspunkt; Markberedning; Fertilizing; Planting; Growth; Survival; Planting point; Site preparation;

    Abstract : Tillväxten i den svenska skogen är en central del för ett hållbart skogsbruk. Därför är markberedning och plantering viktigt för en ökad tillväxt och överlevnad för plantor av både tall (Pinus sylvestris) och gran (Picea abies). Tillsatt växtnäring vid plantering är en metod som kan öka plantors tillväxt och överlevnad. READ MORE

  4. 3. Optimizing nitrogen fertilization in ley : Evaluating the usage of N-sensor and other tools for optimized nitrogen fertilization

    University essay from SLU/Dept. of Soil and Environment

    Author : Johan Johnsson; [2023]
    Keywords : nitrogen efficiency; optimized fertilization; SN value; unfertilized area; Yara N-sensor;

    Abstract : Nitrogen is an essential nutrient for plant growth. It has several functions in the plant and a lack of nitrogen can cause severe yield losses. READ MORE

  5. 4. Separation and acidification of digested animal manure : properties of the future organic fertilizers

    University essay from SLU/Dept. of Soil and Environment

    Author : Marie Björs; [2023]
    Keywords : Digestate; Eutrophication; Farmers’ survey; Plasma activation; Screw press;

    Abstract : Agricultural areas with a high animal density contribute to eutrophication in waterbodies and seas worldwide due to accumulation of nutrients around animal farms. Animal manure is heavy and bulky, thus unpractical to transport long distances and new techniques have been developed to refine animal manure and make it easier to transport. READ MORE

  6. 5. Biochar from separated digestate and pig manure as soil amendment

    University essay from SLU/Dept. of Soil and Environment

    Author : Lovisa Nissen; [2022]
    Keywords : separation; screw press; incubation study; CO2 emission; N mineralization;

    Abstract : The situation in and around the Baltic Sea, with large areas with hypoxia in the sea and areas in the watershed with a high concentration of animal farms, has led to a need to increase the nutrient recycling of animal manure. High levels of phosphorus (P) in the soil lead to leaching, and by reducing the P-level in organic fertilizers, this leaching can be reduced. READ MORE