Essays about: "CaCl2"

Showing result 6 - 10 of 15 essays containing the word CaCl2.

  1. 6. Applicering av kväve i fast och flytande form : effekt på växttillgänglighet i åkermark

    University essay from SLU/Dept. of Soil and Environment

    Author : Elizabeth Lövstaf; [2020]
    Keywords : fast gödselmedel; flytande gödselmedel; ammonium; nitrat; ammoniumfixering; regnsimulering;

    Abstract : Kvävegödselmedel är det mest använda gödselmedlet i Sverige till följd av dess goda effekter på en grödas kvalité och avkastning. Tillförsel av kväve (N) görs vanligen i formerna nitrat (NO3-) och ammonium (NH4+), gärna i kombination med andra näringsämnen. READ MORE

  3. 7. Aqua Ammonia as Secondary Fluid in Ice Rink Applications

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Brianna Kilberg; [2020]
    Keywords : Ice rink; secondary fluid; aqua ammonia; ammonia water; thermophysical properties; corrosion; pressure drop; pumping power; refrigeration;

    Abstract : Refrigerant management is crucial in the attempts to slow climate change. Emissions from the refrigeration sector are primarily due to poor management and unsafe destruction of refrigerants currently in circulation. Safe refrigerant management and improving system operating efficiency can result in a reduction of emissions. READ MORE

  4. 8. Evaluation of degree of phosphorus saturation (DPS) and easily soluble P in top- and subsoil as a predictor for P-leaching

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Jessie Torpner; [2019]
    Keywords : degree of phosphorus saturation; dissolved reactive phosphorus; easily soluble P; column experiment; lactate extracted P;

    Abstract : Eutrophication has long been an environmental problem and the effects from fertilizingarable land is a known source. The degree of phosphorus saturation (DPS)and easily soluble phosphorus (P) are different variables used in different countriesto try to predict the leaching of P from soils. READ MORE

  5. 9. Sequential phosphorus extraction using iron (hydr)oxide-impregnated filter paper strips

    University essay from SLU/Dept. of Soil and Environment

    Author : Jean Rene Marius Tuyishime; [2016]
    Keywords : phosphorus; Pi-filter strip; desorption; depletion; soil phosphorus tests;

    Abstract : Phosphorus (P) is an important element for crop production. A low concentration limits crop growth whereas the residual quantity after fertilization contributes to eutrophication of surface waters. A key to success in the soil P management is its accurate estimation and potential supply to the plant. READ MORE

  6. 10. Prediction of plant available copper, zinc and phosphorus in arable soils : comparison of diffusive gradients in thin film (DGT) technique with soil extraction methods

    University essay from SLU/Dept. of Soil and Environment

    Author : Madeleine Andersson; [2016]
    Keywords : Diffusive gradients in thin film technique DGT ; Cu; Zn; P; HNO3; CaCl2; P-AL; nutrient availability;

    Abstract : Nutrient deficiencies in crop production are today a worldwide problem. To maximize fertilizer efficiency and crop yields it is important to be able to assess the accurate amount of available nutrients in the soil (Mason et al., 2005). READ MORE