Essays about: "pumice stone"

Found 3 essays containing the words pumice stone.

  1. 1. Investigation of sustainable methods to reduce water hardness in drinking water treatment plants

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Élise Karlsson Faudot; [2021]
    Keywords : Water hardness; sustainability; Bulltofta water treatment plant; water hardness reduction; plant biomass; plastic; pumice stone; adsorption; Earth and Environmental Sciences;

    Abstract : Water hardness is caused by magnesium and calcium ions (Mg2+ and Ca2+), and can result in formation of deposits, destruction of soap and increase of copper corrosion in old plumbing pipes. To soften the originally hard groundwater supplying 20% of Malmö’s drinking water, Bulltofta water treatment plant imports burned lime from Germany. READ MORE

  3. 2. Promoting lateral bud growth in sweet potato (Ipomoea batatas) : comparing the foliar application of synthetic phytohormone and coconut water

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Johan Valeur; [2020]
    Keywords : sweet potato; Ipomea batatas; apical dominance; phytohormones; coconut water; foliar application; biostimulant; vegetative propagation;

    Abstract : Sweet potato (Ipomea batatas) is an important crop grown worldwide with a rising interest in production in Europe and Sweden. Swedish producers are looking for ways to grow the crop but are facing problems because of low-quality slips from import which leads to a non-profitable production. READ MORE

  4. 3. Potato yield and tuber set as affected by phosphorus fertilization

    University essay from SLU/Horticulture

    Author : Joakim Ekelöf; [2007]
    Keywords : fertilizer; irrigation; phosphorus; phosphate; foliar; application;

    Abstract : In order to minimize phosphorus (P) leaching from potato cropping systems, P recommendations based on facts regarding the influence on the potato plant is needed. A literature study and a practical experiment were conducted in order to determine potato yield and tuber set as affected by Pfertilization. READ MORE