Essays about: "N-concentration"

Showing result 6 - 10 of 10 essays containing the word N-concentration.

  1. 6. Effects of drought and nutrients on growth, morphology and wood anatomy of two genotypes of Salix

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Amanda Jansson; [2015]
    Keywords : Salix vinimalis; Salix schwerinii; biomass production; vessel; water; nutrients;

    Abstract : Due to a growing global population and an increasing welfare in combination with limited resources of fossil fuels and environmental problems may bioenergy be one of the alternatives for a more sustainable energy production. Among others, Salix is used as biological energy source. READ MORE

  3. 7. Ammonium and orthophosphate ions removal from source separated human urine using dual reactive filters: A small scale laboratory study in a batch mode.

    University essay from KTH/Mark- och vattenteknik

    Author : Prayash Khanal; [2013]
    Keywords : Reactive filters system; Urine; Nutrients removal; Polonite; Mordenite; Batch mode;

    Abstract : The nutrients available in urine make it a good resource as fertilizer. Limited availability of natural phosphorus (P) is compelling people to think about recovering and returning it back to the land from waste stream. READ MORE

  4. 8. Effect of varietal and species diversity on nitrogen fixation and nitrogen cycling in an organic faba bean spring wheat intercropping system

    University essay from SLU/Dept. of People and Society

    Author : Nawa Raj Dhamala; [2012]
    Keywords : Advisors; Cropping system; Diversity; N2 fixation; N cycling; 15N natural abundance; Questionnaires;

    Abstract : This study was undertaken to evaluate the effect of varietal and species diversity of faba bean and spring wheat on N2 fixation and N cycling in an organic system. The field experiment was carried out at SLU Alnarp to quantify biological N2 fixation using 15N natural abundance method. READ MORE

  5. 9. Möjligheter att förutsäga kvävegödslingsbehov i höstvete med Yara N-tester

    University essay from SLU/Dept. of Soil and Environment

    Author : David Larsson; [2012]
    Keywords : N-Tester; klorofyllmätare; kvävegödsling; höstvete; precisionsodling;

    Abstract : The Yara N-Tester is a handheld chlorophyll meter which can be used in several different crops as an aid to determine if there is a need of complementary fertilization with nitrogen (N) or not. If the crop requires more N the N-Tester will recommend an amount in kg per ha. READ MORE

  6. 10. Effects of soil substrate and nitrogen fertilizer on biomass production of Acacia senegal and Acacia sieberiana in North Eastern Uganda

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Moses Otuba; [2012]
    Keywords : Acacia ; nitrogen; fertilizer; growth rate; biomass allocation;

    Abstract : A study on the effects of soil substrate and nitrogen fertilizer on the growth rate and biomass production of Acacia senegal and A. sieberiana in North Eastern Uganda was conducted between February and June, 2012. READ MORE